update

.gitignore

@@ -7,3 +7,4 @@ gen
 .DS_Store
 *.exe
 build
+data
\ No newline at end of file

Makefile

 .PHONY: default all clean dev
 
-GOBIN = $(shell pwd)/build
+GOBIN = $(shell pwd)/build/bin
 
 GOVERSION=$(shell go version | awk '{print $$3}')
 GITHASH=$(shell git show -s --format=%H)
@@ -19,13 +19,15 @@ BUILD_FLAGS=-ldflags "\
 
 
 witness:
-	# go build  -o MetaNet
-	go build $(BUILD_FLAGS) -o=${GOBIN}/$@ ./cmd
+	go build $(BUILD_FLAGS) -v -o=${GOBIN}/$@ ./cmd/witness
 
 
 dev:
-	go build $(BUILD_FLAGS) -o=${GOBIN}/$@ -gcflags "all=-N -l" ./cmd
+	go build $(BUILD_FLAGS) -v -o=${GOBIN}/$@ -gcflags "all=-N -l" ./cmd/witness
 
 
 clean:
-	rm -fr build
+	rm -rf build
+
+cleandb:
+	rm -rf data/*
\ No newline at end of file

api/grpc.go

 package api
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"math/big"
+	"net"
+	"witness/core"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/crypto"
+	grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
+	witnessv1 "github.com/odysseus/odysseus-protocol/gen/proto/go/witness/v1"
+	log "github.com/sirupsen/logrus"
+	"google.golang.org/grpc"
+)
+
+type Server struct {
+	witnessv1.UnimplementedWitnessServiceServer
+	w *core.Witness
+}
+
+func (s *Server) WitnessStatus(ctx context.Context, req *witnessv1.WitnessStatusRequest) (resp *witnessv1.WitnessStatusResponse, err error) {
+	return nil, nil
+}
+
+func (s *Server) PushProof(ctx context.Context, req *witnessv1.PushProofRequest) (resp *witnessv1.PushProofResponse, err error) {
+	resp = &witnessv1.PushProofResponse{}
+	proofs := req.GetProofs()
+	if len(proofs) == 0 {
+		return nil, errors.New("no proofs provided")
+	}
+	miner := common.HexToAddress(req.MinerAddress)
+	reward := common.HexToAddress(req.RewardAddress)
+	validatedProofs := make([]*witnessv1.ValidatedProof, 0, len(proofs))
+
+	log.WithFields(log.Fields{"miner": miner, "reward": reward, "proofs": len(proofs)}).Debug("push proof")
+
+	for _, proof := range proofs {
+		hashPayload := append(append([]byte(proof.TaskId), proof.ReqHash...), proof.RespHash...)
+		containerPubKey, err := crypto.SigToPub(crypto.Keccak256(hashPayload), proof.ContainerSignature)
+		if err != nil {
+			log.WithError(err).Error("failed to verify container signature")
+			return nil, err
+		}
+		containerSigner := crypto.PubkeyToAddress(*containerPubKey)
+		verified := s.w.IsContainerAddress(containerSigner)
+		if !verified {
+			log.WithFields(log.Fields{"signer": containerSigner}).Error("invalid container signature")
+			return nil, errors.New("invalid container signature")
+		}
+
+		minerHashPayload := append(append([]byte(proof.TaskId), proof.ReqHash...), proof.RespHash...)
+		minerPubKey, err := crypto.SigToPub(crypto.Keccak256(minerHashPayload), proof.MinerSignature)
+		if err != nil {
+			log.WithError(err).Error("failed to verify miner signature")
+			return nil, err
+		}
+
+		minerAddress := crypto.PubkeyToAddress(*minerPubKey)
+		if minerAddress.Hex() != miner.Hex() {
+			log.WithFields(log.Fields{"miner": miner, "signer": minerAddress}).Error("invalid miner address")
+			return nil, errors.New("invalid miner address")
+		}
+
+		managerHashPayload := bytes.NewBuffer(hashPayload)
+		managerHashPayload.Write(reward.Bytes())
+		managerHashPayload.Write(miner.Bytes())
+		managerHashPayload.Write(proof.ContainerSignature)
+		managerHashPayload.Write(proof.MinerSignature)
+		managerHashPayload.Write(big.NewInt(int64(proof.Workload)).Bytes())
+		managerPubKey, err := crypto.SigToPub(crypto.Keccak256(managerHashPayload.Bytes()), proof.ManagerSignature)
+		if err != nil {
+			log.WithError(err).Error("failed to verify manager signature")
+			return nil, err
+		}
+
+		managerSigner := crypto.PubkeyToAddress(*managerPubKey)
+		verified = s.w.IsNMAddress(managerSigner)
+		if !verified {
+			log.WithFields(log.Fields{"signer": managerSigner}).Error("invalid manager signature")
+			return nil, errors.New("invalid manager signature")
+		}
+		resp.Workload += proof.Workload
+		validatedProofs = append(validatedProofs, &witnessv1.ValidatedProof{
+			Workload: proof.Workload,
+		})
+	}
+	s.w.AddPendingProof(miner, validatedProofs)
+	return resp, nil
+}
+
+func (s *Server) GetMinerProof(ctx context.Context, req *witnessv1.GetMinerProofRequest) (*witnessv1.GetMinerProofResponse, error) {
+	return nil, nil
+}
+
+func (s *Server) GetProof(ctx context.Context, req *witnessv1.GetProofRequest) (*witnessv1.GetProofResponse, error) {
+	return nil, nil
+}
+
+func (s *Server) GetWithdrawProof(ctx context.Context, req *witnessv1.GetWithdrawProofRequest) (*witnessv1.GetWithdrawProofResponse, error) {
+	return nil, nil
+}
+
+func StartGRPC(listenAddress string, w *core.Witness) {
+	ln, err := net.Listen("tcp", listenAddress)
+	if err != nil {
+		log.WithError(err).Errorf("failed to listen on %s", listenAddress)
+		return
+	}
+
+	log.WithField("listen", listenAddress).Info("start gRPC server")
+	server := grpc.NewServer(grpc.MaxRecvMsgSize(1024*1024*1024), grpc.MaxSendMsgSize(1024*1024*1024))
+	witnessv1.RegisterWitnessServiceServer(server, &Server{w: w})
+	grpc_prometheus.Register(server)
+	err = server.Serve(ln)
+	if err != nil {
+		log.WithError(err).Error("failed to serve")
+		return
+	}
+	server.Stop()
+}

api/grpc_test.go

+package api
+
+import (
+	"context"
+	"testing"
+
+	witnessv1 "github.com/odysseus/odysseus-protocol/gen/proto/go/witness/v1"
+	log "github.com/sirupsen/logrus"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+)
+
+func TestClient(t *testing.T) {
+	client, err := grpc.Dial("127.0.0.1:9431", grpc.WithTransportCredentials(insecure.NewCredentials()),
+		grpc.WithDefaultCallOptions(
+			grpc.MaxCallRecvMsgSize(1024*1024*1024),
+			grpc.MaxCallSendMsgSize(1024*1024*1024)),
+	)
+	if err != nil {
+		panic(err)
+	}
+
+	gc := witnessv1.NewWitnessServiceClient(client)
+
+	req := &witnessv1.PushProofRequest{
+		Proofs: []*witnessv1.Proof{
+			{
+				Workload:           10,
+				TaskId:             "1",
+				ReqHash:            []byte("req"),
+				RespHash:           []byte("resp"),
+				ManagerSignature:   nil,
+				ContainerSignature: nil,
+				MinerSignature:     nil,
+			},
+		},
+		RewardAddress: "",
+		MinerAddress:  "",
+	}
+
+	resp, err := gc.PushProof(context.Background(), req)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	log.Info(resp.Workload)
+}

api/json.go

+package api
+
+import (
+	"encoding/json"
+)
+
+type jsonrpcMessage struct {
+	Version string          `json:"jsonrpc"`
+	ID      json.RawMessage `json:"id"`
+	Method  string          `json:"method,omitempty"`
+	Params  json.RawMessage `json:"params,omitempty"`
+	Error   *jsonError      `json:"error,omitempty"`
+	Result  json.RawMessage `json:"result,omitempty"`
+}
+
+type jsonError struct {
+	Code    int         `json:"code"`
+	Message string      `json:"message"`
+	Data    interface{} `json:"data,omitempty"`
+}

api/jsonrpc.go

-package api

api/metrics.go

 package api
-
-import (
-	"github.com/prometheus/client_golang/prometheus"
-)
-
-var (
-	_ = prometheus.AlreadyRegisteredError{}
-)

api/rpc.go

+package api
+
+import (
+	"encoding/json"
+	"net/http"
+	"witness/core"
+
+	"github.com/ethereum/go-ethereum/common"
+	geth "github.com/ethereum/go-ethereum/mobile"
+	log "github.com/sirupsen/logrus"
+)
+
+var witness *core.Witness
+
+func rpcHandle(w http.ResponseWriter, r *http.Request) {
+	req := &jsonrpcMessage{}
+	resp := &jsonrpcMessage{}
+
+	if r.Method != "POST" {
+		w.Write([]byte("method not allowed"))
+		w.WriteHeader(http.StatusMethodNotAllowed)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	contentType := r.Header.Get("Content-Type")
+	if contentType != "application/json" {
+		resp.Error = &jsonError{
+			Code:    -32600,
+			Message: "invalid Content-Type header",
+		}
+		resp.Version = "2.0"
+		_ = json.NewEncoder(w).Encode(resp)
+		return
+	}
+
+	err := json.NewDecoder(r.Body).Decode(req)
+	if err != nil {
+		resp.Error = &jsonError{
+			Code:    -32603,
+			Message: err.Error(),
+		}
+		resp.Version = "2.0"
+		_ = json.NewEncoder(w).Encode(resp)
+		return
+	}
+
+	if req.Version != "2.0" {
+		resp.Error = &jsonError{
+			Code:    -32600,
+			Message: "invalid jsonrpc version",
+		}
+		resp.Version = "2.0"
+		_ = json.NewEncoder(w).Encode(resp)
+		return
+	}
+	resp.Version = req.Version
+	resp.ID = req.ID
+
+	switch req.Method {
+	case "getWithdrawProofs":
+		getWithdrawProofs(req.Params, resp)
+		_ = json.NewEncoder(w).Encode(resp)
+		return
+	case "getPendingWorkload":
+		getPendingWorkload(req.Params, resp)
+		_ = json.NewEncoder(w).Encode(resp)
+		return
+
+	default:
+		resp.Error = &jsonError{
+			Code:    -32601,
+			Message: "method not found",
+		}
+		_ = json.NewEncoder(w).Encode(resp)
+		return
+	}
+
+}
+
+func getWithdrawProofs(params []byte, resp *jsonrpcMessage) {
+	addressList := make([]string, 0)
+	err := json.Unmarshal(params, &addressList)
+	if err != nil || len(addressList) != 1 {
+		resp.Error = &jsonError{
+			Code:    -32602,
+			Message: "invalid params",
+		}
+		return
+	}
+
+	_, err = geth.NewAddressFromHex(addressList[0])
+	if err != nil {
+		resp.Error = &jsonError{
+			Code:    -32602,
+			Message: "invalid params",
+		}
+		return
+	}
+
+	workload, proofs := witness.GetMerkleProof(common.HexToAddress(addressList[0]))
+
+	temp := map[string]interface{}{
+		"workload": workload,
+		"proofs":   proofs,
+	}
+
+	resp.Result, _ = json.Marshal(temp)
+	return
+}
+
+func getPendingWorkload(params []byte, resp *jsonrpcMessage) {
+	addressList := make([]string, 0)
+	err := json.Unmarshal(params, &addressList)
+	if err != nil || len(addressList) != 1 {
+		resp.Error = &jsonError{
+			Code:    -32602,
+			Message: "invalid params",
+		}
+		return
+	}
+
+	_, err = geth.NewAddressFromHex(addressList[0])
+	if err != nil {
+		resp.Error = &jsonError{
+			Code:    -32602,
+			Message: "invalid params",
+		}
+		return
+	}
+
+	workload := witness.GetPendingWorkload(common.HexToAddress(addressList[0]))
+
+	temp := map[string]interface{}{
+		"workload": workload,
+	}
+
+	resp.Result, _ = json.Marshal(temp)
+	return
+}
+
+func StartJSONRPC(listenAddress string, w *core.Witness) {
+	witness = w
+	http.HandleFunc("/", rpcHandle)
+	log.WithField("listen", listenAddress).Info("start JSON-RPC server")
+	err := http.ListenAndServe(listenAddress, nil)
+	if err != nil {
+		log.WithError(err).Fatal("failed to start JSON-RPC server")
+	}
+}

api/service.go

-package api

cmd/main.go

-package main
-
-import (
-	"fmt"
-	"os"
-	"witness/version"
-
-	log "github.com/sirupsen/logrus"
-	"github.com/urfave/cli/v2"
-)
-
-var (
-	appFlags = []cli.Flag{
-		configFileFlag,
-		grpcListenAddrFlag,
-		rpcListenAddrFlag,
-		rpcHostFlag,
-		storeContractFlag,
-		rewardContractFlag,
-	}
-)
-
-func main() {
-	// run()
-	fmt.Println(version.GOVersion)
-}
-
-func run() {
-	app := cli.App{}
-	app.Name = "witness"
-	app.Usage = "this is witness"
-	app.Version = version.Version
-	app.Before = func(c *cli.Context) error {
-		return loadFlagsFromConfig(c, appFlags)
-	}
-
-	if err := app.Run(os.Args); err != nil {
-		log.Error(err)
-	}
-}

cmd/flags.go → cmd/witness/flags.go

@@ -12,6 +12,26 @@ var (
 		Name:    "config",
 		Aliases: []string{"c"},
 		Usage:   "The path to the config file",
+		Value:   "config.toml",
+	}
+
+	dataDirFlag = &cli.StringFlag{
+		Name:    "data-dir",
+		Aliases: []string{"d"},
+		Usage:   "The path to the data directory",
+		Value:   "data",
+	}
+
+	metricsListenAddrFlag = &cli.StringFlag{
+		Name:  "metrics-listen",
+		Usage: "The listen address of the metrics server",
+		Value: "0.0.0.0:9429",
+	}
+
+	logLevelFlag = &cli.StringFlag{
+		Name:  "log-level",
+		Usage: "The log level",
+		Value: "info",
 	}
 
 	grpcListenAddrFlag = &cli.StringFlag{
@@ -26,7 +46,13 @@ var (
 		Value: "0.0.0.0:9431",
 	}
 
-	rpcHostFlag = &cli.StringFlag{
+	privateKeyFlag = &cli.StringFlag{
+		Name:    "private-key",
+		Usage:   "The private key of the account",
+		EnvVars: []string{"PRIVATE_KEY"},
+	}
+
+	chainRPCFlag = &cli.StringFlag{
 		Name:  "chain-rpc",
 		Usage: "The host of the chain json rpc server",
 	}
@@ -36,8 +62,8 @@ var (
 		Usage: "The address of the store contract",
 	}
 
-	rewardContractFlag = &cli.StringFlag{
-		Name:  "reward-contract",
+	witnessContractFlag = &cli.StringFlag{
+		Name:  "witness-contract",
 		Usage: "The address of the reward contract",
 	}
 )

cmd/witness/main.go

+package main
+
+import (
+	"net/http"
+	"os"
+	"witness/api"
+	"witness/conf"
+	"witness/core"
+	"witness/version"
+
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	log "github.com/sirupsen/logrus"
+	"github.com/urfave/cli/v2"
+)
+
+var (
+	appFlags = []cli.Flag{
+		configFileFlag,
+		dataDirFlag,
+		metricsListenAddrFlag,
+		logLevelFlag,
+		grpcListenAddrFlag,
+		rpcListenAddrFlag,
+		privateKeyFlag,
+		chainRPCFlag,
+		storeContractFlag,
+		witnessContractFlag,
+	}
+)
+
+func main() {
+	app := cli.App{}
+	app.Flags = wrapFlags(appFlags)
+	app.Name = "witness"
+	app.Usage = "this is witness"
+	app.Version = version.Version
+	app.Before = func(c *cli.Context) error {
+		return loadFlagsFromConfig(c, app.Flags)
+	}
+	app.Action = func(context *cli.Context) error {
+		run(context)
+		return nil
+	}
+	if err := app.Run(os.Args); err != nil {
+		log.Error(err)
+	}
+}
+
+func run(ctx *cli.Context) {
+	cfg := &conf.Config{
+		MetricsListenAddr: ctx.String(metricsListenAddrFlag.Name),
+		LogLevel:          ctx.String(logLevelFlag.Name),
+		GRPCListenAddr:    ctx.String(grpcListenAddrFlag.Name),
+		RPCListenAddr:     ctx.String(rpcListenAddrFlag.Name),
+		PrivateKey:        ctx.String(privateKeyFlag.Name),
+		ChainRPC:          ctx.String(chainRPCFlag.Name),
+		StoreContract:     ctx.String(storeContractFlag.Name),
+		WitnessContract:   ctx.String(witnessContractFlag.Name),
+		DataDir:           ctx.String(dataDirFlag.Name),
+	}
+	setLogLevel(cfg.LogLevel)
+	runMetrics(cfg.MetricsListenAddr)
+	w := core.NewWitness(cfg)
+	runGrpcServer(cfg.GRPCListenAddr, w)
+	runJSONRPCServer(cfg.RPCListenAddr, w)
+	select {}
+}
+
+func setLogLevel(level string) {
+	_level, err := log.ParseLevel(level)
+	if err != nil {
+		log.WithError(err).Error("failed to parse log level")
+		return
+	}
+	log.WithField("log level", _level).Info("set log level")
+	log.SetLevel(_level)
+}
+
+func runMetrics(listen string) {
+	http.Handle("/metrics", promhttp.Handler())
+	log.WithField("listen", listen).Info("start prometheus metrics server")
+	go func() {
+		if err := http.ListenAndServe(listen, nil); err != nil {
+			log.WithError(err).Error("failed to start prometheus metrics server")
+		}
+	}()
+}
+
+func runGrpcServer(listen string, w *core.Witness) {
+	go api.StartGRPC(listen, w)
+}
+
+func runJSONRPCServer(listen string, w *core.Witness) {
+	go api.StartJSONRPC(listen, w)
+}

conf/config.go

+package conf
+
+type Config struct {
+	MetricsListenAddr string
+	LogLevel          string
+	GRPCListenAddr    string
+	RPCListenAddr     string
+	ChainRPC          string
+	PrivateKey        string
+	StoreContract     string
+	WitnessContract   string
+	RewardContract    string
+	DataDir           string
+}

config.toml

 
-grpc-listen = "0.0.0.0:9430"
+log-level = "debug"
 
-rpc-listen = "0.0.0.0:9431"
+metrics-listen = "0.0.0.0:8425"
 
-chain-rpc = "https://1rpc.io/eth"
+grpc-listen = "0.0.0.0:9431"
 
-store-contract = "0x0000000000000000000000000000000000000000"
+rpc-listen = "0.0.0.0:9442"
 
-reward-contract = "0x0000000000000000000000000000000000000000"
\ No newline at end of file
+chain-rpc = "https://1rpc.io/holesky"
+
+private-key = "529f4efb80ac534f17d873104c71881c0970dbd5a886f183f63c5c6bb7a1fcd9"
+
+store-contract = "0x7Cd36Bc2a477f60A14f08442179B2f626bE026Ea"
+
+witness-contract = "0xf49133dD7B7ed75fA0f877413D293c05Bff0D8F0"
\ No newline at end of file

contract/address_storage.go

+// Code generated - DO NOT EDIT.
+// This file is a generated binding and any manual changes will be lost.
+
+package contract
+
+import (
+	"errors"
+	"math/big"
+	"strings"
+
+	ethereum "github.com/ethereum/go-ethereum"
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/event"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var (
+	_ = errors.New
+	_ = big.NewInt
+	_ = strings.NewReader
+	_ = ethereum.NotFound
+	_ = bind.Bind
+	_ = common.Big1
+	_ = types.BloomLookup
+	_ = event.NewSubscription
+)
+
+// AddressStorageMetaData contains all meta data concerning the AddressStorage contract.
+var AddressStorageMetaData = &bind.MetaData{
+	ABI: "[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"OwnableInvalidOwner\",\"type\":\"error\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"OwnableUnauthorizedAccount\",\"type\":\"error\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"addr\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"bool\",\"name\":\"ok\",\"type\":\"bool\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"count\",\"type\":\"uint256\"}],\"name\":\"ContainerAddressChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"addr\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"bool\",\"name\":\"ok\",\"type\":\"bool\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"count\",\"type\":\"uint256\"}],\"name\":\"NmAddressChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"getContainerAddresses\",\"outputs\":[{\"internalType\":\"address[]\",\"name\":\"\",\"type\":\"address[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getNmAddresses\",\"outputs\":[{\"internalType\":\"address[]\",\"name\":\"\",\"type\":\"address[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"addr\",\"type\":\"address\"}],\"name\":\"isContainerAddress\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"addr\",\"type\":\"address\"}],\"name\":\"isNmAddress\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"addr\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"ok\",\"type\":\"bool\"}],\"name\":\"setContainerAddress\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"addr\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"ok\",\"type\":\"bool\"}],\"name\":\"setNmAddress\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]",
+}
+
+// AddressStorageABI is the input ABI used to generate the binding from.
+// Deprecated: Use AddressStorageMetaData.ABI instead.
+var AddressStorageABI = AddressStorageMetaData.ABI
+
+// AddressStorage is an auto generated Go binding around an Ethereum contract.
+type AddressStorage struct {
+	AddressStorageCaller     // Read-only binding to the contract
+	AddressStorageTransactor // Write-only binding to the contract
+	AddressStorageFilterer   // Log filterer for contract events
+}
+
+// AddressStorageCaller is an auto generated read-only Go binding around an Ethereum contract.
+type AddressStorageCaller struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// AddressStorageTransactor is an auto generated write-only Go binding around an Ethereum contract.
+type AddressStorageTransactor struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// AddressStorageFilterer is an auto generated log filtering Go binding around an Ethereum contract events.
+type AddressStorageFilterer struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// AddressStorageSession is an auto generated Go binding around an Ethereum contract,
+// with pre-set call and transact options.
+type AddressStorageSession struct {
+	Contract     *AddressStorage   // Generic contract binding to set the session for
+	CallOpts     bind.CallOpts     // Call options to use throughout this session
+	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
+}
+
+// AddressStorageCallerSession is an auto generated read-only Go binding around an Ethereum contract,
+// with pre-set call options.
+type AddressStorageCallerSession struct {
+	Contract *AddressStorageCaller // Generic contract caller binding to set the session for
+	CallOpts bind.CallOpts         // Call options to use throughout this session
+}
+
+// AddressStorageTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
+// with pre-set transact options.
+type AddressStorageTransactorSession struct {
+	Contract     *AddressStorageTransactor // Generic contract transactor binding to set the session for
+	TransactOpts bind.TransactOpts         // Transaction auth options to use throughout this session
+}
+
+// AddressStorageRaw is an auto generated low-level Go binding around an Ethereum contract.
+type AddressStorageRaw struct {
+	Contract *AddressStorage // Generic contract binding to access the raw methods on
+}
+
+// AddressStorageCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
+type AddressStorageCallerRaw struct {
+	Contract *AddressStorageCaller // Generic read-only contract binding to access the raw methods on
+}
+
+// AddressStorageTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
+type AddressStorageTransactorRaw struct {
+	Contract *AddressStorageTransactor // Generic write-only contract binding to access the raw methods on
+}
+
+// NewAddressStorage creates a new instance of AddressStorage, bound to a specific deployed contract.
+func NewAddressStorage(address common.Address, backend bind.ContractBackend) (*AddressStorage, error) {
+	contract, err := bindAddressStorage(address, backend, backend, backend)
+	if err != nil {
+		return nil, err
+	}
+	return &AddressStorage{AddressStorageCaller: AddressStorageCaller{contract: contract}, AddressStorageTransactor: AddressStorageTransactor{contract: contract}, AddressStorageFilterer: AddressStorageFilterer{contract: contract}}, nil
+}
+
+// NewAddressStorageCaller creates a new read-only instance of AddressStorage, bound to a specific deployed contract.
+func NewAddressStorageCaller(address common.Address, caller bind.ContractCaller) (*AddressStorageCaller, error) {
+	contract, err := bindAddressStorage(address, caller, nil, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &AddressStorageCaller{contract: contract}, nil
+}
+
+// NewAddressStorageTransactor creates a new write-only instance of AddressStorage, bound to a specific deployed contract.
+func NewAddressStorageTransactor(address common.Address, transactor bind.ContractTransactor) (*AddressStorageTransactor, error) {
+	contract, err := bindAddressStorage(address, nil, transactor, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &AddressStorageTransactor{contract: contract}, nil
+}
+
+// NewAddressStorageFilterer creates a new log filterer instance of AddressStorage, bound to a specific deployed contract.
+func NewAddressStorageFilterer(address common.Address, filterer bind.ContractFilterer) (*AddressStorageFilterer, error) {
+	contract, err := bindAddressStorage(address, nil, nil, filterer)
+	if err != nil {
+		return nil, err
+	}
+	return &AddressStorageFilterer{contract: contract}, nil
+}
+
+// bindAddressStorage binds a generic wrapper to an already deployed contract.
+func bindAddressStorage(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) {
+	parsed, err := abi.JSON(strings.NewReader(AddressStorageABI))
+	if err != nil {
+		return nil, err
+	}
+	return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil
+}
+
+// Call invokes the (constant) contract method with params as input values and
+// sets the output to result. The result type might be a single field for simple
+// returns, a slice of interfaces for anonymous returns and a struct for named
+// returns.
+func (_AddressStorage *AddressStorageRaw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
+	return _AddressStorage.Contract.AddressStorageCaller.contract.Call(opts, result, method, params...)
+}
+
+// Transfer initiates a plain transaction to move funds to the contract, calling
+// its default method if one is available.
+func (_AddressStorage *AddressStorageRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _AddressStorage.Contract.AddressStorageTransactor.contract.Transfer(opts)
+}
+
+// Transact invokes the (paid) contract method with params as input values.
+func (_AddressStorage *AddressStorageRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
+	return _AddressStorage.Contract.AddressStorageTransactor.contract.Transact(opts, method, params...)
+}
+
+// Call invokes the (constant) contract method with params as input values and
+// sets the output to result. The result type might be a single field for simple
+// returns, a slice of interfaces for anonymous returns and a struct for named
+// returns.
+func (_AddressStorage *AddressStorageCallerRaw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
+	return _AddressStorage.Contract.contract.Call(opts, result, method, params...)
+}
+
+// Transfer initiates a plain transaction to move funds to the contract, calling
+// its default method if one is available.
+func (_AddressStorage *AddressStorageTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _AddressStorage.Contract.contract.Transfer(opts)
+}
+
+// Transact invokes the (paid) contract method with params as input values.
+func (_AddressStorage *AddressStorageTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
+	return _AddressStorage.Contract.contract.Transact(opts, method, params...)
+}
+
+// GetContainerAddresses is a free data retrieval call binding the contract method 0xd402ae97.
+//
+// Solidity: function getContainerAddresses() view returns(address[])
+func (_AddressStorage *AddressStorageCaller) GetContainerAddresses(opts *bind.CallOpts) ([]common.Address, error) {
+	var out []interface{}
+	err := _AddressStorage.contract.Call(opts, &out, "getContainerAddresses")
+
+	if err != nil {
+		return *new([]common.Address), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([]common.Address)).(*[]common.Address)
+
+	return out0, err
+
+}
+
+// GetContainerAddresses is a free data retrieval call binding the contract method 0xd402ae97.
+//
+// Solidity: function getContainerAddresses() view returns(address[])
+func (_AddressStorage *AddressStorageSession) GetContainerAddresses() ([]common.Address, error) {
+	return _AddressStorage.Contract.GetContainerAddresses(&_AddressStorage.CallOpts)
+}
+
+// GetContainerAddresses is a free data retrieval call binding the contract method 0xd402ae97.
+//
+// Solidity: function getContainerAddresses() view returns(address[])
+func (_AddressStorage *AddressStorageCallerSession) GetContainerAddresses() ([]common.Address, error) {
+	return _AddressStorage.Contract.GetContainerAddresses(&_AddressStorage.CallOpts)
+}
+
+// GetNmAddresses is a free data retrieval call binding the contract method 0x09c22170.
+//
+// Solidity: function getNmAddresses() view returns(address[])
+func (_AddressStorage *AddressStorageCaller) GetNmAddresses(opts *bind.CallOpts) ([]common.Address, error) {
+	var out []interface{}
+	err := _AddressStorage.contract.Call(opts, &out, "getNmAddresses")
+
+	if err != nil {
+		return *new([]common.Address), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([]common.Address)).(*[]common.Address)
+
+	return out0, err
+
+}
+
+// GetNmAddresses is a free data retrieval call binding the contract method 0x09c22170.
+//
+// Solidity: function getNmAddresses() view returns(address[])
+func (_AddressStorage *AddressStorageSession) GetNmAddresses() ([]common.Address, error) {
+	return _AddressStorage.Contract.GetNmAddresses(&_AddressStorage.CallOpts)
+}
+
+// GetNmAddresses is a free data retrieval call binding the contract method 0x09c22170.
+//
+// Solidity: function getNmAddresses() view returns(address[])
+func (_AddressStorage *AddressStorageCallerSession) GetNmAddresses() ([]common.Address, error) {
+	return _AddressStorage.Contract.GetNmAddresses(&_AddressStorage.CallOpts)
+}
+
+// IsContainerAddress is a free data retrieval call binding the contract method 0x6b7f9e9d.
+//
+// Solidity: function isContainerAddress(address addr) view returns(bool)
+func (_AddressStorage *AddressStorageCaller) IsContainerAddress(opts *bind.CallOpts, addr common.Address) (bool, error) {
+	var out []interface{}
+	err := _AddressStorage.contract.Call(opts, &out, "isContainerAddress", addr)
+
+	if err != nil {
+		return *new(bool), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(bool)).(*bool)
+
+	return out0, err
+
+}
+
+// IsContainerAddress is a free data retrieval call binding the contract method 0x6b7f9e9d.
+//
+// Solidity: function isContainerAddress(address addr) view returns(bool)
+func (_AddressStorage *AddressStorageSession) IsContainerAddress(addr common.Address) (bool, error) {
+	return _AddressStorage.Contract.IsContainerAddress(&_AddressStorage.CallOpts, addr)
+}
+
+// IsContainerAddress is a free data retrieval call binding the contract method 0x6b7f9e9d.
+//
+// Solidity: function isContainerAddress(address addr) view returns(bool)
+func (_AddressStorage *AddressStorageCallerSession) IsContainerAddress(addr common.Address) (bool, error) {
+	return _AddressStorage.Contract.IsContainerAddress(&_AddressStorage.CallOpts, addr)
+}
+
+// IsNmAddress is a free data retrieval call binding the contract method 0x5434152c.
+//
+// Solidity: function isNmAddress(address addr) view returns(bool)
+func (_AddressStorage *AddressStorageCaller) IsNmAddress(opts *bind.CallOpts, addr common.Address) (bool, error) {
+	var out []interface{}
+	err := _AddressStorage.contract.Call(opts, &out, "isNmAddress", addr)
+
+	if err != nil {
+		return *new(bool), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(bool)).(*bool)
+
+	return out0, err
+
+}
+
+// IsNmAddress is a free data retrieval call binding the contract method 0x5434152c.
+//
+// Solidity: function isNmAddress(address addr) view returns(bool)
+func (_AddressStorage *AddressStorageSession) IsNmAddress(addr common.Address) (bool, error) {
+	return _AddressStorage.Contract.IsNmAddress(&_AddressStorage.CallOpts, addr)
+}
+
+// IsNmAddress is a free data retrieval call binding the contract method 0x5434152c.
+//
+// Solidity: function isNmAddress(address addr) view returns(bool)
+func (_AddressStorage *AddressStorageCallerSession) IsNmAddress(addr common.Address) (bool, error) {
+	return _AddressStorage.Contract.IsNmAddress(&_AddressStorage.CallOpts, addr)
+}
+
+// Owner is a free data retrieval call binding the contract method 0x8da5cb5b.
+//
+// Solidity: function owner() view returns(address)
+func (_AddressStorage *AddressStorageCaller) Owner(opts *bind.CallOpts) (common.Address, error) {
+	var out []interface{}
+	err := _AddressStorage.contract.Call(opts, &out, "owner")
+
+	if err != nil {
+		return *new(common.Address), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(common.Address)).(*common.Address)
+
+	return out0, err
+
+}
+
+// Owner is a free data retrieval call binding the contract method 0x8da5cb5b.
+//
+// Solidity: function owner() view returns(address)
+func (_AddressStorage *AddressStorageSession) Owner() (common.Address, error) {
+	return _AddressStorage.Contract.Owner(&_AddressStorage.CallOpts)
+}
+
+// Owner is a free data retrieval call binding the contract method 0x8da5cb5b.
+//
+// Solidity: function owner() view returns(address)
+func (_AddressStorage *AddressStorageCallerSession) Owner() (common.Address, error) {
+	return _AddressStorage.Contract.Owner(&_AddressStorage.CallOpts)
+}
+
+// RenounceOwnership is a paid mutator transaction binding the contract method 0x715018a6.
+//
+// Solidity: function renounceOwnership() returns()
+func (_AddressStorage *AddressStorageTransactor) RenounceOwnership(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _AddressStorage.contract.Transact(opts, "renounceOwnership")
+}
+
+// RenounceOwnership is a paid mutator transaction binding the contract method 0x715018a6.
+//
+// Solidity: function renounceOwnership() returns()
+func (_AddressStorage *AddressStorageSession) RenounceOwnership() (*types.Transaction, error) {
+	return _AddressStorage.Contract.RenounceOwnership(&_AddressStorage.TransactOpts)
+}
+
+// RenounceOwnership is a paid mutator transaction binding the contract method 0x715018a6.
+//
+// Solidity: function renounceOwnership() returns()
+func (_AddressStorage *AddressStorageTransactorSession) RenounceOwnership() (*types.Transaction, error) {
+	return _AddressStorage.Contract.RenounceOwnership(&_AddressStorage.TransactOpts)
+}
+
+// SetContainerAddress is a paid mutator transaction binding the contract method 0x0a96de56.
+//
+// Solidity: function setContainerAddress(address addr, bool ok) returns()
+func (_AddressStorage *AddressStorageTransactor) SetContainerAddress(opts *bind.TransactOpts, addr common.Address, ok bool) (*types.Transaction, error) {
+	return _AddressStorage.contract.Transact(opts, "setContainerAddress", addr, ok)
+}
+
+// SetContainerAddress is a paid mutator transaction binding the contract method 0x0a96de56.
+//
+// Solidity: function setContainerAddress(address addr, bool ok) returns()
+func (_AddressStorage *AddressStorageSession) SetContainerAddress(addr common.Address, ok bool) (*types.Transaction, error) {
+	return _AddressStorage.Contract.SetContainerAddress(&_AddressStorage.TransactOpts, addr, ok)
+}
+
+// SetContainerAddress is a paid mutator transaction binding the contract method 0x0a96de56.
+//
+// Solidity: function setContainerAddress(address addr, bool ok) returns()
+func (_AddressStorage *AddressStorageTransactorSession) SetContainerAddress(addr common.Address, ok bool) (*types.Transaction, error) {
+	return _AddressStorage.Contract.SetContainerAddress(&_AddressStorage.TransactOpts, addr, ok)
+}
+
+// SetNmAddress is a paid mutator transaction binding the contract method 0x7e46327f.
+//
+// Solidity: function setNmAddress(address addr, bool ok) returns()
+func (_AddressStorage *AddressStorageTransactor) SetNmAddress(opts *bind.TransactOpts, addr common.Address, ok bool) (*types.Transaction, error) {
+	return _AddressStorage.contract.Transact(opts, "setNmAddress", addr, ok)
+}
+
+// SetNmAddress is a paid mutator transaction binding the contract method 0x7e46327f.
+//
+// Solidity: function setNmAddress(address addr, bool ok) returns()
+func (_AddressStorage *AddressStorageSession) SetNmAddress(addr common.Address, ok bool) (*types.Transaction, error) {
+	return _AddressStorage.Contract.SetNmAddress(&_AddressStorage.TransactOpts, addr, ok)
+}
+
+// SetNmAddress is a paid mutator transaction binding the contract method 0x7e46327f.
+//
+// Solidity: function setNmAddress(address addr, bool ok) returns()
+func (_AddressStorage *AddressStorageTransactorSession) SetNmAddress(addr common.Address, ok bool) (*types.Transaction, error) {
+	return _AddressStorage.Contract.SetNmAddress(&_AddressStorage.TransactOpts, addr, ok)
+}
+
+// TransferOwnership is a paid mutator transaction binding the contract method 0xf2fde38b.
+//
+// Solidity: function transferOwnership(address newOwner) returns()
+func (_AddressStorage *AddressStorageTransactor) TransferOwnership(opts *bind.TransactOpts, newOwner common.Address) (*types.Transaction, error) {
+	return _AddressStorage.contract.Transact(opts, "transferOwnership", newOwner)
+}
+
+// TransferOwnership is a paid mutator transaction binding the contract method 0xf2fde38b.
+//
+// Solidity: function transferOwnership(address newOwner) returns()
+func (_AddressStorage *AddressStorageSession) TransferOwnership(newOwner common.Address) (*types.Transaction, error) {
+	return _AddressStorage.Contract.TransferOwnership(&_AddressStorage.TransactOpts, newOwner)
+}
+
+// TransferOwnership is a paid mutator transaction binding the contract method 0xf2fde38b.
+//
+// Solidity: function transferOwnership(address newOwner) returns()
+func (_AddressStorage *AddressStorageTransactorSession) TransferOwnership(newOwner common.Address) (*types.Transaction, error) {
+	return _AddressStorage.Contract.TransferOwnership(&_AddressStorage.TransactOpts, newOwner)
+}
+
+// AddressStorageContainerAddressChangedIterator is returned from FilterContainerAddressChanged and is used to iterate over the raw logs and unpacked data for ContainerAddressChanged events raised by the AddressStorage contract.
+type AddressStorageContainerAddressChangedIterator struct {
+	Event *AddressStorageContainerAddressChanged // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *AddressStorageContainerAddressChangedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(AddressStorageContainerAddressChanged)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(AddressStorageContainerAddressChanged)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *AddressStorageContainerAddressChangedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *AddressStorageContainerAddressChangedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// AddressStorageContainerAddressChanged represents a ContainerAddressChanged event raised by the AddressStorage contract.
+type AddressStorageContainerAddressChanged struct {
+	Addr  common.Address
+	Ok    bool
+	Count *big.Int
+	Raw   types.Log // Blockchain specific contextual infos
+}
+
+// FilterContainerAddressChanged is a free log retrieval operation binding the contract event 0xb6c9f6ac88ad75d755e223ce407f77c17d1fa1c7934be2cd127e8373d1b909f9.
+//
+// Solidity: event ContainerAddressChanged(address indexed addr, bool indexed ok, uint256 indexed count)
+func (_AddressStorage *AddressStorageFilterer) FilterContainerAddressChanged(opts *bind.FilterOpts, addr []common.Address, ok []bool, count []*big.Int) (*AddressStorageContainerAddressChangedIterator, error) {
+
+	var addrRule []interface{}
+	for _, addrItem := range addr {
+		addrRule = append(addrRule, addrItem)
+	}
+	var okRule []interface{}
+	for _, okItem := range ok {
+		okRule = append(okRule, okItem)
+	}
+	var countRule []interface{}
+	for _, countItem := range count {
+		countRule = append(countRule, countItem)
+	}
+
+	logs, sub, err := _AddressStorage.contract.FilterLogs(opts, "ContainerAddressChanged", addrRule, okRule, countRule)
+	if err != nil {
+		return nil, err
+	}
+	return &AddressStorageContainerAddressChangedIterator{contract: _AddressStorage.contract, event: "ContainerAddressChanged", logs: logs, sub: sub}, nil
+}
+
+// WatchContainerAddressChanged is a free log subscription operation binding the contract event 0xb6c9f6ac88ad75d755e223ce407f77c17d1fa1c7934be2cd127e8373d1b909f9.
+//
+// Solidity: event ContainerAddressChanged(address indexed addr, bool indexed ok, uint256 indexed count)
+func (_AddressStorage *AddressStorageFilterer) WatchContainerAddressChanged(opts *bind.WatchOpts, sink chan<- *AddressStorageContainerAddressChanged, addr []common.Address, ok []bool, count []*big.Int) (event.Subscription, error) {
+
+	var addrRule []interface{}
+	for _, addrItem := range addr {
+		addrRule = append(addrRule, addrItem)
+	}
+	var okRule []interface{}
+	for _, okItem := range ok {
+		okRule = append(okRule, okItem)
+	}
+	var countRule []interface{}
+	for _, countItem := range count {
+		countRule = append(countRule, countItem)
+	}
+
+	logs, sub, err := _AddressStorage.contract.WatchLogs(opts, "ContainerAddressChanged", addrRule, okRule, countRule)
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(AddressStorageContainerAddressChanged)
+				if err := _AddressStorage.contract.UnpackLog(event, "ContainerAddressChanged", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseContainerAddressChanged is a log parse operation binding the contract event 0xb6c9f6ac88ad75d755e223ce407f77c17d1fa1c7934be2cd127e8373d1b909f9.
+//
+// Solidity: event ContainerAddressChanged(address indexed addr, bool indexed ok, uint256 indexed count)
+func (_AddressStorage *AddressStorageFilterer) ParseContainerAddressChanged(log types.Log) (*AddressStorageContainerAddressChanged, error) {
+	event := new(AddressStorageContainerAddressChanged)
+	if err := _AddressStorage.contract.UnpackLog(event, "ContainerAddressChanged", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}
+
+// AddressStorageNmAddressChangedIterator is returned from FilterNmAddressChanged and is used to iterate over the raw logs and unpacked data for NmAddressChanged events raised by the AddressStorage contract.
+type AddressStorageNmAddressChangedIterator struct {
+	Event *AddressStorageNmAddressChanged // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *AddressStorageNmAddressChangedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(AddressStorageNmAddressChanged)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(AddressStorageNmAddressChanged)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *AddressStorageNmAddressChangedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *AddressStorageNmAddressChangedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// AddressStorageNmAddressChanged represents a NmAddressChanged event raised by the AddressStorage contract.
+type AddressStorageNmAddressChanged struct {
+	Addr  common.Address
+	Ok    bool
+	Count *big.Int
+	Raw   types.Log // Blockchain specific contextual infos
+}
+
+// FilterNmAddressChanged is a free log retrieval operation binding the contract event 0x5c3c7702d99e901d207a52039106e72877dbf05ee667a72bde8568d651ae97bd.
+//
+// Solidity: event NmAddressChanged(address indexed addr, bool indexed ok, uint256 indexed count)
+func (_AddressStorage *AddressStorageFilterer) FilterNmAddressChanged(opts *bind.FilterOpts, addr []common.Address, ok []bool, count []*big.Int) (*AddressStorageNmAddressChangedIterator, error) {
+
+	var addrRule []interface{}
+	for _, addrItem := range addr {
+		addrRule = append(addrRule, addrItem)
+	}
+	var okRule []interface{}
+	for _, okItem := range ok {
+		okRule = append(okRule, okItem)
+	}
+	var countRule []interface{}
+	for _, countItem := range count {
+		countRule = append(countRule, countItem)
+	}
+
+	logs, sub, err := _AddressStorage.contract.FilterLogs(opts, "NmAddressChanged", addrRule, okRule, countRule)
+	if err != nil {
+		return nil, err
+	}
+	return &AddressStorageNmAddressChangedIterator{contract: _AddressStorage.contract, event: "NmAddressChanged", logs: logs, sub: sub}, nil
+}
+
+// WatchNmAddressChanged is a free log subscription operation binding the contract event 0x5c3c7702d99e901d207a52039106e72877dbf05ee667a72bde8568d651ae97bd.
+//
+// Solidity: event NmAddressChanged(address indexed addr, bool indexed ok, uint256 indexed count)
+func (_AddressStorage *AddressStorageFilterer) WatchNmAddressChanged(opts *bind.WatchOpts, sink chan<- *AddressStorageNmAddressChanged, addr []common.Address, ok []bool, count []*big.Int) (event.Subscription, error) {
+
+	var addrRule []interface{}
+	for _, addrItem := range addr {
+		addrRule = append(addrRule, addrItem)
+	}
+	var okRule []interface{}
+	for _, okItem := range ok {
+		okRule = append(okRule, okItem)
+	}
+	var countRule []interface{}
+	for _, countItem := range count {
+		countRule = append(countRule, countItem)
+	}
+
+	logs, sub, err := _AddressStorage.contract.WatchLogs(opts, "NmAddressChanged", addrRule, okRule, countRule)
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(AddressStorageNmAddressChanged)
+				if err := _AddressStorage.contract.UnpackLog(event, "NmAddressChanged", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseNmAddressChanged is a log parse operation binding the contract event 0x5c3c7702d99e901d207a52039106e72877dbf05ee667a72bde8568d651ae97bd.
+//
+// Solidity: event NmAddressChanged(address indexed addr, bool indexed ok, uint256 indexed count)
+func (_AddressStorage *AddressStorageFilterer) ParseNmAddressChanged(log types.Log) (*AddressStorageNmAddressChanged, error) {
+	event := new(AddressStorageNmAddressChanged)
+	if err := _AddressStorage.contract.UnpackLog(event, "NmAddressChanged", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}
+
+// AddressStorageOwnershipTransferredIterator is returned from FilterOwnershipTransferred and is used to iterate over the raw logs and unpacked data for OwnershipTransferred events raised by the AddressStorage contract.
+type AddressStorageOwnershipTransferredIterator struct {
+	Event *AddressStorageOwnershipTransferred // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *AddressStorageOwnershipTransferredIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(AddressStorageOwnershipTransferred)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(AddressStorageOwnershipTransferred)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *AddressStorageOwnershipTransferredIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *AddressStorageOwnershipTransferredIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// AddressStorageOwnershipTransferred represents a OwnershipTransferred event raised by the AddressStorage contract.
+type AddressStorageOwnershipTransferred struct {
+	PreviousOwner common.Address
+	NewOwner      common.Address
+	Raw           types.Log // Blockchain specific contextual infos
+}
+
+// FilterOwnershipTransferred is a free log retrieval operation binding the contract event 0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0.
+//
+// Solidity: event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)
+func (_AddressStorage *AddressStorageFilterer) FilterOwnershipTransferred(opts *bind.FilterOpts, previousOwner []common.Address, newOwner []common.Address) (*AddressStorageOwnershipTransferredIterator, error) {
+
+	var previousOwnerRule []interface{}
+	for _, previousOwnerItem := range previousOwner {
+		previousOwnerRule = append(previousOwnerRule, previousOwnerItem)
+	}
+	var newOwnerRule []interface{}
+	for _, newOwnerItem := range newOwner {
+		newOwnerRule = append(newOwnerRule, newOwnerItem)
+	}
+
+	logs, sub, err := _AddressStorage.contract.FilterLogs(opts, "OwnershipTransferred", previousOwnerRule, newOwnerRule)
+	if err != nil {
+		return nil, err
+	}
+	return &AddressStorageOwnershipTransferredIterator{contract: _AddressStorage.contract, event: "OwnershipTransferred", logs: logs, sub: sub}, nil
+}
+
+// WatchOwnershipTransferred is a free log subscription operation binding the contract event 0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0.
+//
+// Solidity: event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)
+func (_AddressStorage *AddressStorageFilterer) WatchOwnershipTransferred(opts *bind.WatchOpts, sink chan<- *AddressStorageOwnershipTransferred, previousOwner []common.Address, newOwner []common.Address) (event.Subscription, error) {
+
+	var previousOwnerRule []interface{}
+	for _, previousOwnerItem := range previousOwner {
+		previousOwnerRule = append(previousOwnerRule, previousOwnerItem)
+	}
+	var newOwnerRule []interface{}
+	for _, newOwnerItem := range newOwner {
+		newOwnerRule = append(newOwnerRule, newOwnerItem)
+	}
+
+	logs, sub, err := _AddressStorage.contract.WatchLogs(opts, "OwnershipTransferred", previousOwnerRule, newOwnerRule)
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(AddressStorageOwnershipTransferred)
+				if err := _AddressStorage.contract.UnpackLog(event, "OwnershipTransferred", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseOwnershipTransferred is a log parse operation binding the contract event 0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0.
+//
+// Solidity: event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)
+func (_AddressStorage *AddressStorageFilterer) ParseOwnershipTransferred(log types.Log) (*AddressStorageOwnershipTransferred, error) {
+	event := new(AddressStorageOwnershipTransferred)
+	if err := _AddressStorage.contract.UnpackLog(event, "OwnershipTransferred", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}

contract/witness.go

+// Code generated - DO NOT EDIT.
+// This file is a generated binding and any manual changes will be lost.
+
+package contract
+
+import (
+	"errors"
+	"math/big"
+	"strings"
+
+	ethereum "github.com/ethereum/go-ethereum"
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/event"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var (
+	_ = errors.New
+	_ = big.NewInt
+	_ = strings.NewReader
+	_ = ethereum.NotFound
+	_ = bind.Bind
+	_ = common.Big1
+	_ = types.BloomLookup
+	_ = event.NewSubscription
+)
+
+// WitnessMetaData contains all meta data concerning the Witness contract.
+var WitnessMetaData = &bind.MetaData{
+	ABI: "[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"OwnableInvalidOwner\",\"type\":\"error\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"OwnableUnauthorizedAccount\",\"type\":\"error\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"dailyDistribution\",\"type\":\"uint256\"}],\"name\":\"DailyDistributionChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"string\",\"name\":\"date\",\"type\":\"string\"},{\"indexed\":false,\"internalType\":\"bytes32\",\"name\":\"merkleRoot\",\"type\":\"bytes32\"},{\"indexed\":false,\"internalType\":\"bytes32\",\"name\":\"merkleSumRoot\",\"type\":\"bytes32\"}],\"name\":\"MerkleRootChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"addr\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"bytes32\",\"name\":\"merkleRoot\",\"type\":\"bytes32\"},{\"indexed\":false,\"internalType\":\"bytes32\",\"name\":\"merkleSumRoot\",\"type\":\"bytes32\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"count\",\"type\":\"uint256\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"dailySubmitCount\",\"type\":\"uint256\"}],\"name\":\"MerkleRootSubmitted\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"merkleRootThreshold\",\"type\":\"uint256\"}],\"name\":\"MerkleRootThresholdChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"addr\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"bool\",\"name\":\"ok\",\"type\":\"bool\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"count\",\"type\":\"uint256\"}],\"name\":\"WitnessChanged\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"dailyDistribution\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"name\":\"dailyMerkleRootMap\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"dailyMerkleRootSubmitCount\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"},{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"dailyMerkleRootSubmitCountMap\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"dailyMerkleRootSubmittedMap\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"name\":\"dailyMerkleRootVerifiedMap\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"name\":\"dailyMerkleSumRootMap\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getDailyDistribution\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getMerkleRoot\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getWitnesses\",\"outputs\":[{\"internalType\":\"address[]\",\"name\":\"\",\"type\":\"address[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"addr\",\"type\":\"address\"}],\"name\":\"isWitness\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"lastMerkleRootUpdate\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"merkleRoot\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"merkleRootThreshold\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"merkleSumRoot\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_dailyDistribution\",\"type\":\"uint256\"}],\"name\":\"setDailyDistribution\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_merkleRootThreshold\",\"type\":\"uint256\"}],\"name\":\"setRootThreshold\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"addr\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"ok\",\"type\":\"bool\"}],\"name\":\"setWitness\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"string\",\"name\":\"_date\",\"type\":\"string\"},{\"internalType\":\"bytes32\",\"name\":\"_merkleRoot\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"_merkleSumRoot\",\"type\":\"bytes32\"}],\"name\":\"submitMerkleRoot\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"witnessAddressMap\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"witnessCount\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
+}
+
+// WitnessABI is the input ABI used to generate the binding from.
+// Deprecated: Use WitnessMetaData.ABI instead.
+var WitnessABI = WitnessMetaData.ABI
+
+// Witness is an auto generated Go binding around an Ethereum contract.
+type Witness struct {
+	WitnessCaller     // Read-only binding to the contract
+	WitnessTransactor // Write-only binding to the contract
+	WitnessFilterer   // Log filterer for contract events
+}
+
+// WitnessCaller is an auto generated read-only Go binding around an Ethereum contract.
+type WitnessCaller struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// WitnessTransactor is an auto generated write-only Go binding around an Ethereum contract.
+type WitnessTransactor struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// WitnessFilterer is an auto generated log filtering Go binding around an Ethereum contract events.
+type WitnessFilterer struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// WitnessSession is an auto generated Go binding around an Ethereum contract,
+// with pre-set call and transact options.
+type WitnessSession struct {
+	Contract     *Witness          // Generic contract binding to set the session for
+	CallOpts     bind.CallOpts     // Call options to use throughout this session
+	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
+}
+
+// WitnessCallerSession is an auto generated read-only Go binding around an Ethereum contract,
+// with pre-set call options.
+type WitnessCallerSession struct {
+	Contract *WitnessCaller // Generic contract caller binding to set the session for
+	CallOpts bind.CallOpts  // Call options to use throughout this session
+}
+
+// WitnessTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
+// with pre-set transact options.
+type WitnessTransactorSession struct {
+	Contract     *WitnessTransactor // Generic contract transactor binding to set the session for
+	TransactOpts bind.TransactOpts  // Transaction auth options to use throughout this session
+}
+
+// WitnessRaw is an auto generated low-level Go binding around an Ethereum contract.
+type WitnessRaw struct {
+	Contract *Witness // Generic contract binding to access the raw methods on
+}
+
+// WitnessCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
+type WitnessCallerRaw struct {
+	Contract *WitnessCaller // Generic read-only contract binding to access the raw methods on
+}
+
+// WitnessTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
+type WitnessTransactorRaw struct {
+	Contract *WitnessTransactor // Generic write-only contract binding to access the raw methods on
+}
+
+// NewWitness creates a new instance of Witness, bound to a specific deployed contract.
+func NewWitness(address common.Address, backend bind.ContractBackend) (*Witness, error) {
+	contract, err := bindWitness(address, backend, backend, backend)
+	if err != nil {
+		return nil, err
+	}
+	return &Witness{WitnessCaller: WitnessCaller{contract: contract}, WitnessTransactor: WitnessTransactor{contract: contract}, WitnessFilterer: WitnessFilterer{contract: contract}}, nil
+}
+
+// NewWitnessCaller creates a new read-only instance of Witness, bound to a specific deployed contract.
+func NewWitnessCaller(address common.Address, caller bind.ContractCaller) (*WitnessCaller, error) {
+	contract, err := bindWitness(address, caller, nil, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &WitnessCaller{contract: contract}, nil
+}
+
+// NewWitnessTransactor creates a new write-only instance of Witness, bound to a specific deployed contract.
+func NewWitnessTransactor(address common.Address, transactor bind.ContractTransactor) (*WitnessTransactor, error) {
+	contract, err := bindWitness(address, nil, transactor, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &WitnessTransactor{contract: contract}, nil
+}
+
+// NewWitnessFilterer creates a new log filterer instance of Witness, bound to a specific deployed contract.
+func NewWitnessFilterer(address common.Address, filterer bind.ContractFilterer) (*WitnessFilterer, error) {
+	contract, err := bindWitness(address, nil, nil, filterer)
+	if err != nil {
+		return nil, err
+	}
+	return &WitnessFilterer{contract: contract}, nil
+}
+
+// bindWitness binds a generic wrapper to an already deployed contract.
+func bindWitness(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) {
+	parsed, err := abi.JSON(strings.NewReader(WitnessABI))
+	if err != nil {
+		return nil, err
+	}
+	return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil
+}
+
+// Call invokes the (constant) contract method with params as input values and
+// sets the output to result. The result type might be a single field for simple
+// returns, a slice of interfaces for anonymous returns and a struct for named
+// returns.
+func (_Witness *WitnessRaw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
+	return _Witness.Contract.WitnessCaller.contract.Call(opts, result, method, params...)
+}
+
+// Transfer initiates a plain transaction to move funds to the contract, calling
+// its default method if one is available.
+func (_Witness *WitnessRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _Witness.Contract.WitnessTransactor.contract.Transfer(opts)
+}
+
+// Transact invokes the (paid) contract method with params as input values.
+func (_Witness *WitnessRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
+	return _Witness.Contract.WitnessTransactor.contract.Transact(opts, method, params...)
+}
+
+// Call invokes the (constant) contract method with params as input values and
+// sets the output to result. The result type might be a single field for simple
+// returns, a slice of interfaces for anonymous returns and a struct for named
+// returns.
+func (_Witness *WitnessCallerRaw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
+	return _Witness.Contract.contract.Call(opts, result, method, params...)
+}
+
+// Transfer initiates a plain transaction to move funds to the contract, calling
+// its default method if one is available.
+func (_Witness *WitnessTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _Witness.Contract.contract.Transfer(opts)
+}
+
+// Transact invokes the (paid) contract method with params as input values.
+func (_Witness *WitnessTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
+	return _Witness.Contract.contract.Transact(opts, method, params...)
+}
+
+// DailyDistribution is a free data retrieval call binding the contract method 0xde8f55af.
+//
+// Solidity: function dailyDistribution() view returns(uint256)
+func (_Witness *WitnessCaller) DailyDistribution(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "dailyDistribution")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// DailyDistribution is a free data retrieval call binding the contract method 0xde8f55af.
+//
+// Solidity: function dailyDistribution() view returns(uint256)
+func (_Witness *WitnessSession) DailyDistribution() (*big.Int, error) {
+	return _Witness.Contract.DailyDistribution(&_Witness.CallOpts)
+}
+
+// DailyDistribution is a free data retrieval call binding the contract method 0xde8f55af.
+//
+// Solidity: function dailyDistribution() view returns(uint256)
+func (_Witness *WitnessCallerSession) DailyDistribution() (*big.Int, error) {
+	return _Witness.Contract.DailyDistribution(&_Witness.CallOpts)
+}
+
+// DailyMerkleRootMap is a free data retrieval call binding the contract method 0x933c2732.
+//
+// Solidity: function dailyMerkleRootMap(string ) view returns(bytes32)
+func (_Witness *WitnessCaller) DailyMerkleRootMap(opts *bind.CallOpts, arg0 string) ([32]byte, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "dailyMerkleRootMap", arg0)
+
+	if err != nil {
+		return *new([32]byte), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([32]byte)).(*[32]byte)
+
+	return out0, err
+
+}
+
+// DailyMerkleRootMap is a free data retrieval call binding the contract method 0x933c2732.
+//
+// Solidity: function dailyMerkleRootMap(string ) view returns(bytes32)
+func (_Witness *WitnessSession) DailyMerkleRootMap(arg0 string) ([32]byte, error) {
+	return _Witness.Contract.DailyMerkleRootMap(&_Witness.CallOpts, arg0)
+}
+
+// DailyMerkleRootMap is a free data retrieval call binding the contract method 0x933c2732.
+//
+// Solidity: function dailyMerkleRootMap(string ) view returns(bytes32)
+func (_Witness *WitnessCallerSession) DailyMerkleRootMap(arg0 string) ([32]byte, error) {
+	return _Witness.Contract.DailyMerkleRootMap(&_Witness.CallOpts, arg0)
+}
+
+// DailyMerkleRootSubmitCount is a free data retrieval call binding the contract method 0xeb6dd75e.
+//
+// Solidity: function dailyMerkleRootSubmitCount() view returns(uint256)
+func (_Witness *WitnessCaller) DailyMerkleRootSubmitCount(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "dailyMerkleRootSubmitCount")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// DailyMerkleRootSubmitCount is a free data retrieval call binding the contract method 0xeb6dd75e.
+//
+// Solidity: function dailyMerkleRootSubmitCount() view returns(uint256)
+func (_Witness *WitnessSession) DailyMerkleRootSubmitCount() (*big.Int, error) {
+	return _Witness.Contract.DailyMerkleRootSubmitCount(&_Witness.CallOpts)
+}
+
+// DailyMerkleRootSubmitCount is a free data retrieval call binding the contract method 0xeb6dd75e.
+//
+// Solidity: function dailyMerkleRootSubmitCount() view returns(uint256)
+func (_Witness *WitnessCallerSession) DailyMerkleRootSubmitCount() (*big.Int, error) {
+	return _Witness.Contract.DailyMerkleRootSubmitCount(&_Witness.CallOpts)
+}
+
+// DailyMerkleRootSubmitCountMap is a free data retrieval call binding the contract method 0x1ff9cbaa.
+//
+// Solidity: function dailyMerkleRootSubmitCountMap(string , bytes32 ) view returns(uint256)
+func (_Witness *WitnessCaller) DailyMerkleRootSubmitCountMap(opts *bind.CallOpts, arg0 string, arg1 [32]byte) (*big.Int, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "dailyMerkleRootSubmitCountMap", arg0, arg1)
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// DailyMerkleRootSubmitCountMap is a free data retrieval call binding the contract method 0x1ff9cbaa.
+//
+// Solidity: function dailyMerkleRootSubmitCountMap(string , bytes32 ) view returns(uint256)
+func (_Witness *WitnessSession) DailyMerkleRootSubmitCountMap(arg0 string, arg1 [32]byte) (*big.Int, error) {
+	return _Witness.Contract.DailyMerkleRootSubmitCountMap(&_Witness.CallOpts, arg0, arg1)
+}
+
+// DailyMerkleRootSubmitCountMap is a free data retrieval call binding the contract method 0x1ff9cbaa.
+//
+// Solidity: function dailyMerkleRootSubmitCountMap(string , bytes32 ) view returns(uint256)
+func (_Witness *WitnessCallerSession) DailyMerkleRootSubmitCountMap(arg0 string, arg1 [32]byte) (*big.Int, error) {
+	return _Witness.Contract.DailyMerkleRootSubmitCountMap(&_Witness.CallOpts, arg0, arg1)
+}
+
+// DailyMerkleRootSubmittedMap is a free data retrieval call binding the contract method 0x9b6c4c33.
+//
+// Solidity: function dailyMerkleRootSubmittedMap(string , address ) view returns(bool)
+func (_Witness *WitnessCaller) DailyMerkleRootSubmittedMap(opts *bind.CallOpts, arg0 string, arg1 common.Address) (bool, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "dailyMerkleRootSubmittedMap", arg0, arg1)
+
+	if err != nil {
+		return *new(bool), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(bool)).(*bool)
+
+	return out0, err
+
+}
+
+// DailyMerkleRootSubmittedMap is a free data retrieval call binding the contract method 0x9b6c4c33.
+//
+// Solidity: function dailyMerkleRootSubmittedMap(string , address ) view returns(bool)
+func (_Witness *WitnessSession) DailyMerkleRootSubmittedMap(arg0 string, arg1 common.Address) (bool, error) {
+	return _Witness.Contract.DailyMerkleRootSubmittedMap(&_Witness.CallOpts, arg0, arg1)
+}
+
+// DailyMerkleRootSubmittedMap is a free data retrieval call binding the contract method 0x9b6c4c33.
+//
+// Solidity: function dailyMerkleRootSubmittedMap(string , address ) view returns(bool)
+func (_Witness *WitnessCallerSession) DailyMerkleRootSubmittedMap(arg0 string, arg1 common.Address) (bool, error) {
+	return _Witness.Contract.DailyMerkleRootSubmittedMap(&_Witness.CallOpts, arg0, arg1)
+}
+
+// DailyMerkleRootVerifiedMap is a free data retrieval call binding the contract method 0x0b89bee2.
+//
+// Solidity: function dailyMerkleRootVerifiedMap(string ) view returns(bool)
+func (_Witness *WitnessCaller) DailyMerkleRootVerifiedMap(opts *bind.CallOpts, arg0 string) (bool, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "dailyMerkleRootVerifiedMap", arg0)
+
+	if err != nil {
+		return *new(bool), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(bool)).(*bool)
+
+	return out0, err
+
+}
+
+// DailyMerkleRootVerifiedMap is a free data retrieval call binding the contract method 0x0b89bee2.
+//
+// Solidity: function dailyMerkleRootVerifiedMap(string ) view returns(bool)
+func (_Witness *WitnessSession) DailyMerkleRootVerifiedMap(arg0 string) (bool, error) {
+	return _Witness.Contract.DailyMerkleRootVerifiedMap(&_Witness.CallOpts, arg0)
+}
+
+// DailyMerkleRootVerifiedMap is a free data retrieval call binding the contract method 0x0b89bee2.
+//
+// Solidity: function dailyMerkleRootVerifiedMap(string ) view returns(bool)
+func (_Witness *WitnessCallerSession) DailyMerkleRootVerifiedMap(arg0 string) (bool, error) {
+	return _Witness.Contract.DailyMerkleRootVerifiedMap(&_Witness.CallOpts, arg0)
+}
+
+// DailyMerkleSumRootMap is a free data retrieval call binding the contract method 0x61bc5c39.
+//
+// Solidity: function dailyMerkleSumRootMap(string ) view returns(bytes32)
+func (_Witness *WitnessCaller) DailyMerkleSumRootMap(opts *bind.CallOpts, arg0 string) ([32]byte, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "dailyMerkleSumRootMap", arg0)
+
+	if err != nil {
+		return *new([32]byte), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([32]byte)).(*[32]byte)
+
+	return out0, err
+
+}
+
+// DailyMerkleSumRootMap is a free data retrieval call binding the contract method 0x61bc5c39.
+//
+// Solidity: function dailyMerkleSumRootMap(string ) view returns(bytes32)
+func (_Witness *WitnessSession) DailyMerkleSumRootMap(arg0 string) ([32]byte, error) {
+	return _Witness.Contract.DailyMerkleSumRootMap(&_Witness.CallOpts, arg0)
+}
+
+// DailyMerkleSumRootMap is a free data retrieval call binding the contract method 0x61bc5c39.
+//
+// Solidity: function dailyMerkleSumRootMap(string ) view returns(bytes32)
+func (_Witness *WitnessCallerSession) DailyMerkleSumRootMap(arg0 string) ([32]byte, error) {
+	return _Witness.Contract.DailyMerkleSumRootMap(&_Witness.CallOpts, arg0)
+}
+
+// GetDailyDistribution is a free data retrieval call binding the contract method 0xc75c46c8.
+//
+// Solidity: function getDailyDistribution() view returns(uint256)
+func (_Witness *WitnessCaller) GetDailyDistribution(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "getDailyDistribution")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// GetDailyDistribution is a free data retrieval call binding the contract method 0xc75c46c8.
+//
+// Solidity: function getDailyDistribution() view returns(uint256)
+func (_Witness *WitnessSession) GetDailyDistribution() (*big.Int, error) {
+	return _Witness.Contract.GetDailyDistribution(&_Witness.CallOpts)
+}
+
+// GetDailyDistribution is a free data retrieval call binding the contract method 0xc75c46c8.
+//
+// Solidity: function getDailyDistribution() view returns(uint256)
+func (_Witness *WitnessCallerSession) GetDailyDistribution() (*big.Int, error) {
+	return _Witness.Contract.GetDailyDistribution(&_Witness.CallOpts)
+}
+
+// GetMerkleRoot is a free data retrieval call binding the contract method 0x49590657.
+//
+// Solidity: function getMerkleRoot() view returns(bytes32)
+func (_Witness *WitnessCaller) GetMerkleRoot(opts *bind.CallOpts) ([32]byte, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "getMerkleRoot")
+
+	if err != nil {
+		return *new([32]byte), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([32]byte)).(*[32]byte)
+
+	return out0, err
+
+}
+
+// GetMerkleRoot is a free data retrieval call binding the contract method 0x49590657.
+//
+// Solidity: function getMerkleRoot() view returns(bytes32)
+func (_Witness *WitnessSession) GetMerkleRoot() ([32]byte, error) {
+	return _Witness.Contract.GetMerkleRoot(&_Witness.CallOpts)
+}
+
+// GetMerkleRoot is a free data retrieval call binding the contract method 0x49590657.
+//
+// Solidity: function getMerkleRoot() view returns(bytes32)
+func (_Witness *WitnessCallerSession) GetMerkleRoot() ([32]byte, error) {
+	return _Witness.Contract.GetMerkleRoot(&_Witness.CallOpts)
+}
+
+// GetWitnesses is a free data retrieval call binding the contract method 0x96d195bd.
+//
+// Solidity: function getWitnesses() view returns(address[])
+func (_Witness *WitnessCaller) GetWitnesses(opts *bind.CallOpts) ([]common.Address, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "getWitnesses")
+
+	if err != nil {
+		return *new([]common.Address), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([]common.Address)).(*[]common.Address)
+
+	return out0, err
+
+}
+
+// GetWitnesses is a free data retrieval call binding the contract method 0x96d195bd.
+//
+// Solidity: function getWitnesses() view returns(address[])
+func (_Witness *WitnessSession) GetWitnesses() ([]common.Address, error) {
+	return _Witness.Contract.GetWitnesses(&_Witness.CallOpts)
+}
+
+// GetWitnesses is a free data retrieval call binding the contract method 0x96d195bd.
+//
+// Solidity: function getWitnesses() view returns(address[])
+func (_Witness *WitnessCallerSession) GetWitnesses() ([]common.Address, error) {
+	return _Witness.Contract.GetWitnesses(&_Witness.CallOpts)
+}
+
+// IsWitness is a free data retrieval call binding the contract method 0xfa7643f4.
+//
+// Solidity: function isWitness(address addr) view returns(bool)
+func (_Witness *WitnessCaller) IsWitness(opts *bind.CallOpts, addr common.Address) (bool, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "isWitness", addr)
+
+	if err != nil {
+		return *new(bool), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(bool)).(*bool)
+
+	return out0, err
+
+}
+
+// IsWitness is a free data retrieval call binding the contract method 0xfa7643f4.
+//
+// Solidity: function isWitness(address addr) view returns(bool)
+func (_Witness *WitnessSession) IsWitness(addr common.Address) (bool, error) {
+	return _Witness.Contract.IsWitness(&_Witness.CallOpts, addr)
+}
+
+// IsWitness is a free data retrieval call binding the contract method 0xfa7643f4.
+//
+// Solidity: function isWitness(address addr) view returns(bool)
+func (_Witness *WitnessCallerSession) IsWitness(addr common.Address) (bool, error) {
+	return _Witness.Contract.IsWitness(&_Witness.CallOpts, addr)
+}
+
+// LastMerkleRootUpdate is a free data retrieval call binding the contract method 0xed86955e.
+//
+// Solidity: function lastMerkleRootUpdate() view returns(uint256)
+func (_Witness *WitnessCaller) LastMerkleRootUpdate(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "lastMerkleRootUpdate")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// LastMerkleRootUpdate is a free data retrieval call binding the contract method 0xed86955e.
+//
+// Solidity: function lastMerkleRootUpdate() view returns(uint256)
+func (_Witness *WitnessSession) LastMerkleRootUpdate() (*big.Int, error) {
+	return _Witness.Contract.LastMerkleRootUpdate(&_Witness.CallOpts)
+}
+
+// LastMerkleRootUpdate is a free data retrieval call binding the contract method 0xed86955e.
+//
+// Solidity: function lastMerkleRootUpdate() view returns(uint256)
+func (_Witness *WitnessCallerSession) LastMerkleRootUpdate() (*big.Int, error) {
+	return _Witness.Contract.LastMerkleRootUpdate(&_Witness.CallOpts)
+}
+
+// MerkleRoot is a free data retrieval call binding the contract method 0x2eb4a7ab.
+//
+// Solidity: function merkleRoot() view returns(bytes32)
+func (_Witness *WitnessCaller) MerkleRoot(opts *bind.CallOpts) ([32]byte, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "merkleRoot")
+
+	if err != nil {
+		return *new([32]byte), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([32]byte)).(*[32]byte)
+
+	return out0, err
+
+}
+
+// MerkleRoot is a free data retrieval call binding the contract method 0x2eb4a7ab.
+//
+// Solidity: function merkleRoot() view returns(bytes32)
+func (_Witness *WitnessSession) MerkleRoot() ([32]byte, error) {
+	return _Witness.Contract.MerkleRoot(&_Witness.CallOpts)
+}
+
+// MerkleRoot is a free data retrieval call binding the contract method 0x2eb4a7ab.
+//
+// Solidity: function merkleRoot() view returns(bytes32)
+func (_Witness *WitnessCallerSession) MerkleRoot() ([32]byte, error) {
+	return _Witness.Contract.MerkleRoot(&_Witness.CallOpts)
+}
+
+// MerkleRootThreshold is a free data retrieval call binding the contract method 0x63bd80dd.
+//
+// Solidity: function merkleRootThreshold() view returns(uint256)
+func (_Witness *WitnessCaller) MerkleRootThreshold(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "merkleRootThreshold")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// MerkleRootThreshold is a free data retrieval call binding the contract method 0x63bd80dd.
+//
+// Solidity: function merkleRootThreshold() view returns(uint256)
+func (_Witness *WitnessSession) MerkleRootThreshold() (*big.Int, error) {
+	return _Witness.Contract.MerkleRootThreshold(&_Witness.CallOpts)
+}
+
+// MerkleRootThreshold is a free data retrieval call binding the contract method 0x63bd80dd.
+//
+// Solidity: function merkleRootThreshold() view returns(uint256)
+func (_Witness *WitnessCallerSession) MerkleRootThreshold() (*big.Int, error) {
+	return _Witness.Contract.MerkleRootThreshold(&_Witness.CallOpts)
+}
+
+// MerkleSumRoot is a free data retrieval call binding the contract method 0x529d7e7c.
+//
+// Solidity: function merkleSumRoot() view returns(bytes32)
+func (_Witness *WitnessCaller) MerkleSumRoot(opts *bind.CallOpts) ([32]byte, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "merkleSumRoot")
+
+	if err != nil {
+		return *new([32]byte), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([32]byte)).(*[32]byte)
+
+	return out0, err
+
+}
+
+// MerkleSumRoot is a free data retrieval call binding the contract method 0x529d7e7c.
+//
+// Solidity: function merkleSumRoot() view returns(bytes32)
+func (_Witness *WitnessSession) MerkleSumRoot() ([32]byte, error) {
+	return _Witness.Contract.MerkleSumRoot(&_Witness.CallOpts)
+}
+
+// MerkleSumRoot is a free data retrieval call binding the contract method 0x529d7e7c.
+//
+// Solidity: function merkleSumRoot() view returns(bytes32)
+func (_Witness *WitnessCallerSession) MerkleSumRoot() ([32]byte, error) {
+	return _Witness.Contract.MerkleSumRoot(&_Witness.CallOpts)
+}
+
+// Owner is a free data retrieval call binding the contract method 0x8da5cb5b.
+//
+// Solidity: function owner() view returns(address)
+func (_Witness *WitnessCaller) Owner(opts *bind.CallOpts) (common.Address, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "owner")
+
+	if err != nil {
+		return *new(common.Address), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(common.Address)).(*common.Address)
+
+	return out0, err
+
+}
+
+// Owner is a free data retrieval call binding the contract method 0x8da5cb5b.
+//
+// Solidity: function owner() view returns(address)
+func (_Witness *WitnessSession) Owner() (common.Address, error) {
+	return _Witness.Contract.Owner(&_Witness.CallOpts)
+}
+
+// Owner is a free data retrieval call binding the contract method 0x8da5cb5b.
+//
+// Solidity: function owner() view returns(address)
+func (_Witness *WitnessCallerSession) Owner() (common.Address, error) {
+	return _Witness.Contract.Owner(&_Witness.CallOpts)
+}
+
+// WitnessAddressMap is a free data retrieval call binding the contract method 0xfe88504e.
+//
+// Solidity: function witnessAddressMap(address ) view returns(bool)
+func (_Witness *WitnessCaller) WitnessAddressMap(opts *bind.CallOpts, arg0 common.Address) (bool, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "witnessAddressMap", arg0)
+
+	if err != nil {
+		return *new(bool), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(bool)).(*bool)
+
+	return out0, err
+
+}
+
+// WitnessAddressMap is a free data retrieval call binding the contract method 0xfe88504e.
+//
+// Solidity: function witnessAddressMap(address ) view returns(bool)
+func (_Witness *WitnessSession) WitnessAddressMap(arg0 common.Address) (bool, error) {
+	return _Witness.Contract.WitnessAddressMap(&_Witness.CallOpts, arg0)
+}
+
+// WitnessAddressMap is a free data retrieval call binding the contract method 0xfe88504e.
+//
+// Solidity: function witnessAddressMap(address ) view returns(bool)
+func (_Witness *WitnessCallerSession) WitnessAddressMap(arg0 common.Address) (bool, error) {
+	return _Witness.Contract.WitnessAddressMap(&_Witness.CallOpts, arg0)
+}
+
+// WitnessCount is a free data retrieval call binding the contract method 0x75aa85c1.
+//
+// Solidity: function witnessCount() view returns(uint256)
+func (_Witness *WitnessCaller) WitnessCount(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _Witness.contract.Call(opts, &out, "witnessCount")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// WitnessCount is a free data retrieval call binding the contract method 0x75aa85c1.
+//
+// Solidity: function witnessCount() view returns(uint256)
+func (_Witness *WitnessSession) WitnessCount() (*big.Int, error) {
+	return _Witness.Contract.WitnessCount(&_Witness.CallOpts)
+}
+
+// WitnessCount is a free data retrieval call binding the contract method 0x75aa85c1.
+//
+// Solidity: function witnessCount() view returns(uint256)
+func (_Witness *WitnessCallerSession) WitnessCount() (*big.Int, error) {
+	return _Witness.Contract.WitnessCount(&_Witness.CallOpts)
+}
+
+// RenounceOwnership is a paid mutator transaction binding the contract method 0x715018a6.
+//
+// Solidity: function renounceOwnership() returns()
+func (_Witness *WitnessTransactor) RenounceOwnership(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _Witness.contract.Transact(opts, "renounceOwnership")
+}
+
+// RenounceOwnership is a paid mutator transaction binding the contract method 0x715018a6.
+//
+// Solidity: function renounceOwnership() returns()
+func (_Witness *WitnessSession) RenounceOwnership() (*types.Transaction, error) {
+	return _Witness.Contract.RenounceOwnership(&_Witness.TransactOpts)
+}
+
+// RenounceOwnership is a paid mutator transaction binding the contract method 0x715018a6.
+//
+// Solidity: function renounceOwnership() returns()
+func (_Witness *WitnessTransactorSession) RenounceOwnership() (*types.Transaction, error) {
+	return _Witness.Contract.RenounceOwnership(&_Witness.TransactOpts)
+}
+
+// SetDailyDistribution is a paid mutator transaction binding the contract method 0x2911360a.
+//
+// Solidity: function setDailyDistribution(uint256 _dailyDistribution) returns()
+func (_Witness *WitnessTransactor) SetDailyDistribution(opts *bind.TransactOpts, _dailyDistribution *big.Int) (*types.Transaction, error) {
+	return _Witness.contract.Transact(opts, "setDailyDistribution", _dailyDistribution)
+}
+
+// SetDailyDistribution is a paid mutator transaction binding the contract method 0x2911360a.
+//
+// Solidity: function setDailyDistribution(uint256 _dailyDistribution) returns()
+func (_Witness *WitnessSession) SetDailyDistribution(_dailyDistribution *big.Int) (*types.Transaction, error) {
+	return _Witness.Contract.SetDailyDistribution(&_Witness.TransactOpts, _dailyDistribution)
+}
+
+// SetDailyDistribution is a paid mutator transaction binding the contract method 0x2911360a.
+//
+// Solidity: function setDailyDistribution(uint256 _dailyDistribution) returns()
+func (_Witness *WitnessTransactorSession) SetDailyDistribution(_dailyDistribution *big.Int) (*types.Transaction, error) {
+	return _Witness.Contract.SetDailyDistribution(&_Witness.TransactOpts, _dailyDistribution)
+}
+
+// SetRootThreshold is a paid mutator transaction binding the contract method 0x718b08a8.
+//
+// Solidity: function setRootThreshold(uint256 _merkleRootThreshold) returns()
+func (_Witness *WitnessTransactor) SetRootThreshold(opts *bind.TransactOpts, _merkleRootThreshold *big.Int) (*types.Transaction, error) {
+	return _Witness.contract.Transact(opts, "setRootThreshold", _merkleRootThreshold)
+}
+
+// SetRootThreshold is a paid mutator transaction binding the contract method 0x718b08a8.
+//
+// Solidity: function setRootThreshold(uint256 _merkleRootThreshold) returns()
+func (_Witness *WitnessSession) SetRootThreshold(_merkleRootThreshold *big.Int) (*types.Transaction, error) {
+	return _Witness.Contract.SetRootThreshold(&_Witness.TransactOpts, _merkleRootThreshold)
+}
+
+// SetRootThreshold is a paid mutator transaction binding the contract method 0x718b08a8.
+//
+// Solidity: function setRootThreshold(uint256 _merkleRootThreshold) returns()
+func (_Witness *WitnessTransactorSession) SetRootThreshold(_merkleRootThreshold *big.Int) (*types.Transaction, error) {
+	return _Witness.Contract.SetRootThreshold(&_Witness.TransactOpts, _merkleRootThreshold)
+}
+
+// SetWitness is a paid mutator transaction binding the contract method 0x7643244a.
+//
+// Solidity: function setWitness(address addr, bool ok) returns()
+func (_Witness *WitnessTransactor) SetWitness(opts *bind.TransactOpts, addr common.Address, ok bool) (*types.Transaction, error) {
+	return _Witness.contract.Transact(opts, "setWitness", addr, ok)
+}
+
+// SetWitness is a paid mutator transaction binding the contract method 0x7643244a.
+//
+// Solidity: function setWitness(address addr, bool ok) returns()
+func (_Witness *WitnessSession) SetWitness(addr common.Address, ok bool) (*types.Transaction, error) {
+	return _Witness.Contract.SetWitness(&_Witness.TransactOpts, addr, ok)
+}
+
+// SetWitness is a paid mutator transaction binding the contract method 0x7643244a.
+//
+// Solidity: function setWitness(address addr, bool ok) returns()
+func (_Witness *WitnessTransactorSession) SetWitness(addr common.Address, ok bool) (*types.Transaction, error) {
+	return _Witness.Contract.SetWitness(&_Witness.TransactOpts, addr, ok)
+}
+
+// SubmitMerkleRoot is a paid mutator transaction binding the contract method 0xb51d7c96.
+//
+// Solidity: function submitMerkleRoot(string _date, bytes32 _merkleRoot, bytes32 _merkleSumRoot) returns()
+func (_Witness *WitnessTransactor) SubmitMerkleRoot(opts *bind.TransactOpts, _date string, _merkleRoot [32]byte, _merkleSumRoot [32]byte) (*types.Transaction, error) {
+	return _Witness.contract.Transact(opts, "submitMerkleRoot", _date, _merkleRoot, _merkleSumRoot)
+}
+
+// SubmitMerkleRoot is a paid mutator transaction binding the contract method 0xb51d7c96.
+//
+// Solidity: function submitMerkleRoot(string _date, bytes32 _merkleRoot, bytes32 _merkleSumRoot) returns()
+func (_Witness *WitnessSession) SubmitMerkleRoot(_date string, _merkleRoot [32]byte, _merkleSumRoot [32]byte) (*types.Transaction, error) {
+	return _Witness.Contract.SubmitMerkleRoot(&_Witness.TransactOpts, _date, _merkleRoot, _merkleSumRoot)
+}
+
+// SubmitMerkleRoot is a paid mutator transaction binding the contract method 0xb51d7c96.
+//
+// Solidity: function submitMerkleRoot(string _date, bytes32 _merkleRoot, bytes32 _merkleSumRoot) returns()
+func (_Witness *WitnessTransactorSession) SubmitMerkleRoot(_date string, _merkleRoot [32]byte, _merkleSumRoot [32]byte) (*types.Transaction, error) {
+	return _Witness.Contract.SubmitMerkleRoot(&_Witness.TransactOpts, _date, _merkleRoot, _merkleSumRoot)
+}
+
+// TransferOwnership is a paid mutator transaction binding the contract method 0xf2fde38b.
+//
+// Solidity: function transferOwnership(address newOwner) returns()
+func (_Witness *WitnessTransactor) TransferOwnership(opts *bind.TransactOpts, newOwner common.Address) (*types.Transaction, error) {
+	return _Witness.contract.Transact(opts, "transferOwnership", newOwner)
+}
+
+// TransferOwnership is a paid mutator transaction binding the contract method 0xf2fde38b.
+//
+// Solidity: function transferOwnership(address newOwner) returns()
+func (_Witness *WitnessSession) TransferOwnership(newOwner common.Address) (*types.Transaction, error) {
+	return _Witness.Contract.TransferOwnership(&_Witness.TransactOpts, newOwner)
+}
+
+// TransferOwnership is a paid mutator transaction binding the contract method 0xf2fde38b.
+//
+// Solidity: function transferOwnership(address newOwner) returns()
+func (_Witness *WitnessTransactorSession) TransferOwnership(newOwner common.Address) (*types.Transaction, error) {
+	return _Witness.Contract.TransferOwnership(&_Witness.TransactOpts, newOwner)
+}
+
+// WitnessDailyDistributionChangedIterator is returned from FilterDailyDistributionChanged and is used to iterate over the raw logs and unpacked data for DailyDistributionChanged events raised by the Witness contract.
+type WitnessDailyDistributionChangedIterator struct {
+	Event *WitnessDailyDistributionChanged // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *WitnessDailyDistributionChangedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(WitnessDailyDistributionChanged)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(WitnessDailyDistributionChanged)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *WitnessDailyDistributionChangedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *WitnessDailyDistributionChangedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// WitnessDailyDistributionChanged represents a DailyDistributionChanged event raised by the Witness contract.
+type WitnessDailyDistributionChanged struct {
+	DailyDistribution *big.Int
+	Raw               types.Log // Blockchain specific contextual infos
+}
+
+// FilterDailyDistributionChanged is a free log retrieval operation binding the contract event 0xb3ae8e2fdcbd3e5bc919976d8ad797511092f7b991c4a29813a72b0b09e79458.
+//
+// Solidity: event DailyDistributionChanged(uint256 dailyDistribution)
+func (_Witness *WitnessFilterer) FilterDailyDistributionChanged(opts *bind.FilterOpts) (*WitnessDailyDistributionChangedIterator, error) {
+
+	logs, sub, err := _Witness.contract.FilterLogs(opts, "DailyDistributionChanged")
+	if err != nil {
+		return nil, err
+	}
+	return &WitnessDailyDistributionChangedIterator{contract: _Witness.contract, event: "DailyDistributionChanged", logs: logs, sub: sub}, nil
+}
+
+// WatchDailyDistributionChanged is a free log subscription operation binding the contract event 0xb3ae8e2fdcbd3e5bc919976d8ad797511092f7b991c4a29813a72b0b09e79458.
+//
+// Solidity: event DailyDistributionChanged(uint256 dailyDistribution)
+func (_Witness *WitnessFilterer) WatchDailyDistributionChanged(opts *bind.WatchOpts, sink chan<- *WitnessDailyDistributionChanged) (event.Subscription, error) {
+
+	logs, sub, err := _Witness.contract.WatchLogs(opts, "DailyDistributionChanged")
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(WitnessDailyDistributionChanged)
+				if err := _Witness.contract.UnpackLog(event, "DailyDistributionChanged", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseDailyDistributionChanged is a log parse operation binding the contract event 0xb3ae8e2fdcbd3e5bc919976d8ad797511092f7b991c4a29813a72b0b09e79458.
+//
+// Solidity: event DailyDistributionChanged(uint256 dailyDistribution)
+func (_Witness *WitnessFilterer) ParseDailyDistributionChanged(log types.Log) (*WitnessDailyDistributionChanged, error) {
+	event := new(WitnessDailyDistributionChanged)
+	if err := _Witness.contract.UnpackLog(event, "DailyDistributionChanged", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}
+
+// WitnessMerkleRootChangedIterator is returned from FilterMerkleRootChanged and is used to iterate over the raw logs and unpacked data for MerkleRootChanged events raised by the Witness contract.
+type WitnessMerkleRootChangedIterator struct {
+	Event *WitnessMerkleRootChanged // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *WitnessMerkleRootChangedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(WitnessMerkleRootChanged)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(WitnessMerkleRootChanged)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *WitnessMerkleRootChangedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *WitnessMerkleRootChangedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// WitnessMerkleRootChanged represents a MerkleRootChanged event raised by the Witness contract.
+type WitnessMerkleRootChanged struct {
+	Date          string
+	MerkleRoot    [32]byte
+	MerkleSumRoot [32]byte
+	Raw           types.Log // Blockchain specific contextual infos
+}
+
+// FilterMerkleRootChanged is a free log retrieval operation binding the contract event 0x03802ed049c84cd4e511bf3c40208130b1c5d73897142ecfb572a739c9e9f06d.
+//
+// Solidity: event MerkleRootChanged(string date, bytes32 merkleRoot, bytes32 merkleSumRoot)
+func (_Witness *WitnessFilterer) FilterMerkleRootChanged(opts *bind.FilterOpts) (*WitnessMerkleRootChangedIterator, error) {
+
+	logs, sub, err := _Witness.contract.FilterLogs(opts, "MerkleRootChanged")
+	if err != nil {
+		return nil, err
+	}
+	return &WitnessMerkleRootChangedIterator{contract: _Witness.contract, event: "MerkleRootChanged", logs: logs, sub: sub}, nil
+}
+
+// WatchMerkleRootChanged is a free log subscription operation binding the contract event 0x03802ed049c84cd4e511bf3c40208130b1c5d73897142ecfb572a739c9e9f06d.
+//
+// Solidity: event MerkleRootChanged(string date, bytes32 merkleRoot, bytes32 merkleSumRoot)
+func (_Witness *WitnessFilterer) WatchMerkleRootChanged(opts *bind.WatchOpts, sink chan<- *WitnessMerkleRootChanged) (event.Subscription, error) {
+
+	logs, sub, err := _Witness.contract.WatchLogs(opts, "MerkleRootChanged")
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(WitnessMerkleRootChanged)
+				if err := _Witness.contract.UnpackLog(event, "MerkleRootChanged", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseMerkleRootChanged is a log parse operation binding the contract event 0x03802ed049c84cd4e511bf3c40208130b1c5d73897142ecfb572a739c9e9f06d.
+//
+// Solidity: event MerkleRootChanged(string date, bytes32 merkleRoot, bytes32 merkleSumRoot)
+func (_Witness *WitnessFilterer) ParseMerkleRootChanged(log types.Log) (*WitnessMerkleRootChanged, error) {
+	event := new(WitnessMerkleRootChanged)
+	if err := _Witness.contract.UnpackLog(event, "MerkleRootChanged", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}
+
+// WitnessMerkleRootSubmittedIterator is returned from FilterMerkleRootSubmitted and is used to iterate over the raw logs and unpacked data for MerkleRootSubmitted events raised by the Witness contract.
+type WitnessMerkleRootSubmittedIterator struct {
+	Event *WitnessMerkleRootSubmitted // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *WitnessMerkleRootSubmittedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(WitnessMerkleRootSubmitted)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(WitnessMerkleRootSubmitted)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *WitnessMerkleRootSubmittedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *WitnessMerkleRootSubmittedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// WitnessMerkleRootSubmitted represents a MerkleRootSubmitted event raised by the Witness contract.
+type WitnessMerkleRootSubmitted struct {
+	Addr             common.Address
+	MerkleRoot       [32]byte
+	MerkleSumRoot    [32]byte
+	Count            *big.Int
+	DailySubmitCount *big.Int
+	Raw              types.Log // Blockchain specific contextual infos
+}
+
+// FilterMerkleRootSubmitted is a free log retrieval operation binding the contract event 0x7c0db56049d8c21ac04eb9f10f3a12460a3cd42c97482ed65838b868f685a34d.
+//
+// Solidity: event MerkleRootSubmitted(address indexed addr, bytes32 merkleRoot, bytes32 merkleSumRoot, uint256 indexed count, uint256 indexed dailySubmitCount)
+func (_Witness *WitnessFilterer) FilterMerkleRootSubmitted(opts *bind.FilterOpts, addr []common.Address, count []*big.Int, dailySubmitCount []*big.Int) (*WitnessMerkleRootSubmittedIterator, error) {
+
+	var addrRule []interface{}
+	for _, addrItem := range addr {
+		addrRule = append(addrRule, addrItem)
+	}
+
+	var countRule []interface{}
+	for _, countItem := range count {
+		countRule = append(countRule, countItem)
+	}
+	var dailySubmitCountRule []interface{}
+	for _, dailySubmitCountItem := range dailySubmitCount {
+		dailySubmitCountRule = append(dailySubmitCountRule, dailySubmitCountItem)
+	}
+
+	logs, sub, err := _Witness.contract.FilterLogs(opts, "MerkleRootSubmitted", addrRule, countRule, dailySubmitCountRule)
+	if err != nil {
+		return nil, err
+	}
+	return &WitnessMerkleRootSubmittedIterator{contract: _Witness.contract, event: "MerkleRootSubmitted", logs: logs, sub: sub}, nil
+}
+
+// WatchMerkleRootSubmitted is a free log subscription operation binding the contract event 0x7c0db56049d8c21ac04eb9f10f3a12460a3cd42c97482ed65838b868f685a34d.
+//
+// Solidity: event MerkleRootSubmitted(address indexed addr, bytes32 merkleRoot, bytes32 merkleSumRoot, uint256 indexed count, uint256 indexed dailySubmitCount)
+func (_Witness *WitnessFilterer) WatchMerkleRootSubmitted(opts *bind.WatchOpts, sink chan<- *WitnessMerkleRootSubmitted, addr []common.Address, count []*big.Int, dailySubmitCount []*big.Int) (event.Subscription, error) {
+
+	var addrRule []interface{}
+	for _, addrItem := range addr {
+		addrRule = append(addrRule, addrItem)
+	}
+
+	var countRule []interface{}
+	for _, countItem := range count {
+		countRule = append(countRule, countItem)
+	}
+	var dailySubmitCountRule []interface{}
+	for _, dailySubmitCountItem := range dailySubmitCount {
+		dailySubmitCountRule = append(dailySubmitCountRule, dailySubmitCountItem)
+	}
+
+	logs, sub, err := _Witness.contract.WatchLogs(opts, "MerkleRootSubmitted", addrRule, countRule, dailySubmitCountRule)
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(WitnessMerkleRootSubmitted)
+				if err := _Witness.contract.UnpackLog(event, "MerkleRootSubmitted", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseMerkleRootSubmitted is a log parse operation binding the contract event 0x7c0db56049d8c21ac04eb9f10f3a12460a3cd42c97482ed65838b868f685a34d.
+//
+// Solidity: event MerkleRootSubmitted(address indexed addr, bytes32 merkleRoot, bytes32 merkleSumRoot, uint256 indexed count, uint256 indexed dailySubmitCount)
+func (_Witness *WitnessFilterer) ParseMerkleRootSubmitted(log types.Log) (*WitnessMerkleRootSubmitted, error) {
+	event := new(WitnessMerkleRootSubmitted)
+	if err := _Witness.contract.UnpackLog(event, "MerkleRootSubmitted", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}
+
+// WitnessMerkleRootThresholdChangedIterator is returned from FilterMerkleRootThresholdChanged and is used to iterate over the raw logs and unpacked data for MerkleRootThresholdChanged events raised by the Witness contract.
+type WitnessMerkleRootThresholdChangedIterator struct {
+	Event *WitnessMerkleRootThresholdChanged // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *WitnessMerkleRootThresholdChangedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(WitnessMerkleRootThresholdChanged)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(WitnessMerkleRootThresholdChanged)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *WitnessMerkleRootThresholdChangedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *WitnessMerkleRootThresholdChangedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// WitnessMerkleRootThresholdChanged represents a MerkleRootThresholdChanged event raised by the Witness contract.
+type WitnessMerkleRootThresholdChanged struct {
+	MerkleRootThreshold *big.Int
+	Raw                 types.Log // Blockchain specific contextual infos
+}
+
+// FilterMerkleRootThresholdChanged is a free log retrieval operation binding the contract event 0xd43620d8f66512fa8246fc8c49d14f776a9938857d9e877639cc92a2955d5a4c.
+//
+// Solidity: event MerkleRootThresholdChanged(uint256 merkleRootThreshold)
+func (_Witness *WitnessFilterer) FilterMerkleRootThresholdChanged(opts *bind.FilterOpts) (*WitnessMerkleRootThresholdChangedIterator, error) {
+
+	logs, sub, err := _Witness.contract.FilterLogs(opts, "MerkleRootThresholdChanged")
+	if err != nil {
+		return nil, err
+	}
+	return &WitnessMerkleRootThresholdChangedIterator{contract: _Witness.contract, event: "MerkleRootThresholdChanged", logs: logs, sub: sub}, nil
+}
+
+// WatchMerkleRootThresholdChanged is a free log subscription operation binding the contract event 0xd43620d8f66512fa8246fc8c49d14f776a9938857d9e877639cc92a2955d5a4c.
+//
+// Solidity: event MerkleRootThresholdChanged(uint256 merkleRootThreshold)
+func (_Witness *WitnessFilterer) WatchMerkleRootThresholdChanged(opts *bind.WatchOpts, sink chan<- *WitnessMerkleRootThresholdChanged) (event.Subscription, error) {
+
+	logs, sub, err := _Witness.contract.WatchLogs(opts, "MerkleRootThresholdChanged")
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(WitnessMerkleRootThresholdChanged)
+				if err := _Witness.contract.UnpackLog(event, "MerkleRootThresholdChanged", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseMerkleRootThresholdChanged is a log parse operation binding the contract event 0xd43620d8f66512fa8246fc8c49d14f776a9938857d9e877639cc92a2955d5a4c.
+//
+// Solidity: event MerkleRootThresholdChanged(uint256 merkleRootThreshold)
+func (_Witness *WitnessFilterer) ParseMerkleRootThresholdChanged(log types.Log) (*WitnessMerkleRootThresholdChanged, error) {
+	event := new(WitnessMerkleRootThresholdChanged)
+	if err := _Witness.contract.UnpackLog(event, "MerkleRootThresholdChanged", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}
+
+// WitnessOwnershipTransferredIterator is returned from FilterOwnershipTransferred and is used to iterate over the raw logs and unpacked data for OwnershipTransferred events raised by the Witness contract.
+type WitnessOwnershipTransferredIterator struct {
+	Event *WitnessOwnershipTransferred // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *WitnessOwnershipTransferredIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(WitnessOwnershipTransferred)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(WitnessOwnershipTransferred)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *WitnessOwnershipTransferredIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *WitnessOwnershipTransferredIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// WitnessOwnershipTransferred represents a OwnershipTransferred event raised by the Witness contract.
+type WitnessOwnershipTransferred struct {
+	PreviousOwner common.Address
+	NewOwner      common.Address
+	Raw           types.Log // Blockchain specific contextual infos
+}
+
+// FilterOwnershipTransferred is a free log retrieval operation binding the contract event 0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0.
+//
+// Solidity: event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)
+func (_Witness *WitnessFilterer) FilterOwnershipTransferred(opts *bind.FilterOpts, previousOwner []common.Address, newOwner []common.Address) (*WitnessOwnershipTransferredIterator, error) {
+
+	var previousOwnerRule []interface{}
+	for _, previousOwnerItem := range previousOwner {
+		previousOwnerRule = append(previousOwnerRule, previousOwnerItem)
+	}
+	var newOwnerRule []interface{}
+	for _, newOwnerItem := range newOwner {
+		newOwnerRule = append(newOwnerRule, newOwnerItem)
+	}
+
+	logs, sub, err := _Witness.contract.FilterLogs(opts, "OwnershipTransferred", previousOwnerRule, newOwnerRule)
+	if err != nil {
+		return nil, err
+	}
+	return &WitnessOwnershipTransferredIterator{contract: _Witness.contract, event: "OwnershipTransferred", logs: logs, sub: sub}, nil
+}
+
+// WatchOwnershipTransferred is a free log subscription operation binding the contract event 0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0.
+//
+// Solidity: event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)
+func (_Witness *WitnessFilterer) WatchOwnershipTransferred(opts *bind.WatchOpts, sink chan<- *WitnessOwnershipTransferred, previousOwner []common.Address, newOwner []common.Address) (event.Subscription, error) {
+
+	var previousOwnerRule []interface{}
+	for _, previousOwnerItem := range previousOwner {
+		previousOwnerRule = append(previousOwnerRule, previousOwnerItem)
+	}
+	var newOwnerRule []interface{}
+	for _, newOwnerItem := range newOwner {
+		newOwnerRule = append(newOwnerRule, newOwnerItem)
+	}
+
+	logs, sub, err := _Witness.contract.WatchLogs(opts, "OwnershipTransferred", previousOwnerRule, newOwnerRule)
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(WitnessOwnershipTransferred)
+				if err := _Witness.contract.UnpackLog(event, "OwnershipTransferred", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseOwnershipTransferred is a log parse operation binding the contract event 0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0.
+//
+// Solidity: event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)
+func (_Witness *WitnessFilterer) ParseOwnershipTransferred(log types.Log) (*WitnessOwnershipTransferred, error) {
+	event := new(WitnessOwnershipTransferred)
+	if err := _Witness.contract.UnpackLog(event, "OwnershipTransferred", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}
+
+// WitnessWitnessChangedIterator is returned from FilterWitnessChanged and is used to iterate over the raw logs and unpacked data for WitnessChanged events raised by the Witness contract.
+type WitnessWitnessChangedIterator struct {
+	Event *WitnessWitnessChanged // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *WitnessWitnessChangedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(WitnessWitnessChanged)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(WitnessWitnessChanged)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *WitnessWitnessChangedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *WitnessWitnessChangedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// WitnessWitnessChanged represents a WitnessChanged event raised by the Witness contract.
+type WitnessWitnessChanged struct {
+	Addr  common.Address
+	Ok    bool
+	Count *big.Int
+	Raw   types.Log // Blockchain specific contextual infos
+}
+
+// FilterWitnessChanged is a free log retrieval operation binding the contract event 0xfae38e0b0395412c5ac55a5b9231b2950defd7f1a4ba46b9a5317971e1aacab9.
+//
+// Solidity: event WitnessChanged(address indexed addr, bool indexed ok, uint256 indexed count)
+func (_Witness *WitnessFilterer) FilterWitnessChanged(opts *bind.FilterOpts, addr []common.Address, ok []bool, count []*big.Int) (*WitnessWitnessChangedIterator, error) {
+
+	var addrRule []interface{}
+	for _, addrItem := range addr {
+		addrRule = append(addrRule, addrItem)
+	}
+	var okRule []interface{}
+	for _, okItem := range ok {
+		okRule = append(okRule, okItem)
+	}
+	var countRule []interface{}
+	for _, countItem := range count {
+		countRule = append(countRule, countItem)
+	}
+
+	logs, sub, err := _Witness.contract.FilterLogs(opts, "WitnessChanged", addrRule, okRule, countRule)
+	if err != nil {
+		return nil, err
+	}
+	return &WitnessWitnessChangedIterator{contract: _Witness.contract, event: "WitnessChanged", logs: logs, sub: sub}, nil
+}
+
+// WatchWitnessChanged is a free log subscription operation binding the contract event 0xfae38e0b0395412c5ac55a5b9231b2950defd7f1a4ba46b9a5317971e1aacab9.
+//
+// Solidity: event WitnessChanged(address indexed addr, bool indexed ok, uint256 indexed count)
+func (_Witness *WitnessFilterer) WatchWitnessChanged(opts *bind.WatchOpts, sink chan<- *WitnessWitnessChanged, addr []common.Address, ok []bool, count []*big.Int) (event.Subscription, error) {
+
+	var addrRule []interface{}
+	for _, addrItem := range addr {
+		addrRule = append(addrRule, addrItem)
+	}
+	var okRule []interface{}
+	for _, okItem := range ok {
+		okRule = append(okRule, okItem)
+	}
+	var countRule []interface{}
+	for _, countItem := range count {
+		countRule = append(countRule, countItem)
+	}
+
+	logs, sub, err := _Witness.contract.WatchLogs(opts, "WitnessChanged", addrRule, okRule, countRule)
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(WitnessWitnessChanged)
+				if err := _Witness.contract.UnpackLog(event, "WitnessChanged", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseWitnessChanged is a log parse operation binding the contract event 0xfae38e0b0395412c5ac55a5b9231b2950defd7f1a4ba46b9a5317971e1aacab9.
+//
+// Solidity: event WitnessChanged(address indexed addr, bool indexed ok, uint256 indexed count)
+func (_Witness *WitnessFilterer) ParseWitnessChanged(log types.Log) (*WitnessWitnessChanged, error) {
+	event := new(WitnessWitnessChanged)
+	if err := _Witness.contract.UnpackLog(event, "WitnessChanged", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}

core/chain.go

+package core
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"fmt"
+	"math/big"
+	"time"
+	"witness/contract"
+
+	"github.com/btcsuite/btcd/btcec/v2"
+	"github.com/ethereum/go-ethereum"
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethclient"
+	log "github.com/sirupsen/logrus"
+)
+
+type ChainRPC struct {
+	rpc             *ethclient.Client
+	chainID         *big.Int
+	privateKey      *ecdsa.PrivateKey
+	storageContract *contract.AddressStorage
+	witnessContract *contract.Witness
+}
+
+func newChain(rpc, privateKey, storageCa, witnessCa string) *ChainRPC {
+	ethRpc, err := ethclient.Dial(rpc)
+	if err != nil {
+		panic(err)
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	chainID, err := ethRpc.ChainID(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	log.WithField("chain_id", chainID.String()).Info("rpc get chain id")
+
+	storage, err := contract.NewAddressStorage(common.HexToAddress(storageCa), ethRpc)
+	if err != nil {
+		panic(err)
+	}
+
+	witness, err := contract.NewWitness(common.HexToAddress(witnessCa), ethRpc)
+	if err != nil {
+		panic(err)
+	}
+
+	binPrivateKey, err := hexutil.Decode(privateKey)
+	if err == hexutil.ErrMissingPrefix {
+		binPrivateKey, err = hexutil.Decode("0x" + privateKey)
+		if err != nil {
+			panic(err)
+		}
+	}
+	if err != nil && err != hexutil.ErrMissingPrefix {
+		panic(err)
+	}
+
+	k, _ := btcec.PrivKeyFromBytes(binPrivateKey)
+	return &ChainRPC{rpc: ethRpc, storageContract: storage, witnessContract: witness, chainID: chainID, privateKey: k.ToECDSA()}
+}
+
+func (r *ChainRPC) GetContainerAddresses() (addrs []common.Address, err error) {
+	return r.storageContract.GetContainerAddresses(nil)
+}
+
+func (r *ChainRPC) GetNMAddresses() (addrs []common.Address, err error) {
+	return r.storageContract.GetNmAddresses(nil)
+}
+
+func (r *ChainRPC) SubmitProofs(date string, merkleSumTreeRoot, merkleTreeRoot common.Hash) (txHash common.Hash, err error) {
+	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
+	defer cancel()
+	opts, err := bind.NewKeyedTransactorWithChainID(r.privateKey, r.chainID)
+	if err != nil {
+		return
+	}
+	opts.Context = ctx
+	signedTx, err := r.witnessContract.SubmitMerkleRoot(opts, date, merkleSumTreeRoot, merkleTreeRoot)
+	if err != nil {
+		return
+	}
+
+	receipt, err := r.WaitForReceipt(ctx, signedTx.Hash())
+	if err != nil {
+		return
+	}
+
+	if receipt.Status != types.ReceiptStatusSuccessful {
+		return common.Hash{}, fmt.Errorf("tx %s failed", signedTx.Hash().Hex())
+	}
+
+	return signedTx.Hash(), nil
+}
+
+func (r *ChainRPC) WaitForReceipt(ctx context.Context, txHash common.Hash) (receipt *types.Receipt, err error) {
+	for {
+		select {
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		default:
+			receipt, err = r.rpc.TransactionReceipt(ctx, txHash)
+			if err == nil {
+				return receipt, nil
+			}
+			if err == ethereum.NotFound {
+				time.Sleep(time.Second * 2)
+				continue
+			}
+			return nil, err
+		}
+	}
+
+}

core/statedb.go

+package core
+
+import (
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/trie"
+	"github.com/gogo/protobuf/proto"
+	witnessv1 "github.com/odysseus/odysseus-protocol/gen/proto/go/witness/v1"
+	log "github.com/sirupsen/logrus"
+)
+
+type StateDB struct {
+	db   *trie.Database
+	trie *trie.Trie
+}
+
+func NewStateDB(db *trie.Database, root common.Hash) (statedb *StateDB, err error) {
+	t, err := trie.New(common.Hash{}, root, db)
+	if err != nil {
+		return nil, err
+	}
+	return &StateDB{
+		db:   db,
+		trie: t,
+	}, nil
+}
+
+func (s *StateDB) GetMinerObject(miner common.Address) (object *witnessv1.MinerObject) {
+	object = &witnessv1.MinerObject{}
+	k := crypto.Keccak256(miner.Bytes())
+	v, err := s.trie.TryGet(k)
+	if err != nil {
+		return nil
+	}
+	err = proto.Unmarshal(v, object)
+	if err != nil {
+		return nil
+	}
+	return
+}
+
+func (s *StateDB) UpdateMinerObject(miner common.Address, object *witnessv1.MinerObject) (err error) {
+	k := crypto.Keccak256(miner.Bytes())
+	v, err := proto.Marshal(object)
+	if err != nil {
+		return
+	}
+
+	err = s.trie.TryUpdate(k, v)
+	return
+}
+
+func (s *StateDB) Commit() (root common.Hash, err error) {
+	root, nodes, err := s.trie.Commit(false)
+	if err != nil {
+		return
+	}
+	nodesSet := trie.NewMergedNodeSet()
+	if nodes != nil {
+		err = nodesSet.Merge(nodes)
+		if err != nil {
+			return
+		}
+	}
+	err = s.db.Update(nodesSet)
+	if err != nil {
+		return
+	}
+
+	err = s.db.Commit(root, true, nil)
+	return root, err
+}
+
+func (s *StateDB) IterAllObject() (objects []*witnessv1.MinerObject) {
+	iter := s.trie.NodeIterator(nil)
+	for iter.Next(true) {
+		if !iter.Leaf() {
+			continue
+		}
+		v := iter.LeafBlob()
+		object := &witnessv1.MinerObject{}
+		err := proto.Unmarshal(v, object)
+		if err != nil {
+			continue
+		}
+		log.WithField("workload", object.Workload).Debug("miner object")
+		objects = append(objects, object)
+	}
+	return
+}

core/trie.go

-package core

core/witness.go

+package core
+
+import (
+	"fmt"
+	"math/big"
+	"math/rand"
+	"sort"
+	"sync"
+	"time"
+	"witness/conf"
+	"witness/tree"
+	"witness/util"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/ethdb/leveldb"
+	"github.com/ethereum/go-ethereum/trie"
+	witnessv1 "github.com/odysseus/odysseus-protocol/gen/proto/go/witness/v1"
+	log "github.com/sirupsen/logrus"
+)
+
+type Witness struct {
+	db                 *trie.Database
+	state              *StateDB
+	pendingProof       map[common.Address]*witnessv1.ValidatedProof
+	mtTreeCache        map[string]*tree.MerkleTree
+	date               string
+	rpc                *ChainRPC
+	containerAddresses []common.Address
+	nmAddresses        []common.Address
+
+	sync.Mutex
+}
+
+func NewWitness(cfg *conf.Config) *Witness {
+	log.Infoln("######", cfg.PrivateKey)
+	_rpc := newChain(cfg.ChainRPC, cfg.PrivateKey, cfg.StoreContract, cfg.WitnessContract)
+	diskDB, err := leveldb.New(cfg.DataDir, 128, 1024, "", false)
+	if err != nil {
+		panic(err)
+	}
+	var lastDay string
+	ok, err := diskDB.Has([]byte("lastday"))
+	if err != nil {
+		panic(err)
+	}
+	var stateRoot common.Hash
+	if ok {
+		val, _ := diskDB.Get([]byte("lastday"))
+		log.WithField("last day", string(val)).Info("diskdb get last day")
+		lastDay = string(val)
+		root, _ := diskDB.Get([]byte(fmt.Sprintf("sroot:%s", string(val))))
+		stateRoot = common.BytesToHash(root)
+	}
+
+	trieDB := trie.NewDatabase(diskDB)
+	log.WithField("root", stateRoot).Info("new witness open trie")
+	stateDB, err := NewStateDB(trieDB, stateRoot)
+	if err != nil {
+		panic(err)
+	}
+	w := &Witness{
+		db:           trieDB,
+		state:        stateDB,
+		pendingProof: make(map[common.Address]*witnessv1.ValidatedProof),
+		mtTreeCache:  make(map[string]*tree.MerkleTree),
+		rpc:          _rpc,
+		date:         lastDay,
+	}
+	w.LoadMerkleProof(lastDay)
+	go w.UpdateAddress()
+	<-time.After(time.Second * 3)
+	go w.Ticker()
+	// go w.Mock()
+
+	return w
+}
+
+func (w *Witness) AddPendingProof(miner common.Address, proofs []*witnessv1.ValidatedProof) {
+	w.Lock()
+	defer w.Unlock()
+	var workload uint64
+	var pendingWorkload uint64
+
+	currentPendingProof, ok := w.pendingProof[miner]
+	if ok {
+		workload = currentPendingProof.Workload
+		pendingWorkload = currentPendingProof.Workload
+	}
+	for _, proof := range proofs {
+		workload += proof.Workload
+	}
+	w.pendingProof[miner] = &witnessv1.ValidatedProof{Workload: workload}
+
+	log.WithFields(log.Fields{
+		"miner":            miner.Hex(),
+		"proof_count":      len(proofs),
+		"current_workload": workload,
+		"pending_workload": pendingWorkload,
+		"workload_diff":    workload - pendingWorkload,
+	}).Debug("add validated proof")
+}
+
+func (w *Witness) ProcessDay() {
+	w.date = time.Now().UTC().AddDate(0, 0, -1).Format("2006-01-02")
+	dayProof := w.Commit()
+	mstRoot, _, err := w.CommitMST(dayProof)
+	if err != nil {
+		log.WithError(err).Error("failed to commit merkle sum tree")
+		return
+	}
+	objects := w.state.IterAllObject()
+	mtRoot, err := w.CommitMT(objects)
+	if err != nil {
+		log.WithError(err).Error("failed to commit merkle tree")
+		return
+	}
+	err = w.db.DiskDB().Put([]byte("lastday"), []byte(w.date))
+	if err != nil {
+		log.WithError(err).Error("failed to update last day")
+		return
+	}
+	txHash, err := w.rpc.SubmitProofs(w.date, mstRoot, mtRoot)
+	if err != nil {
+		log.WithError(err).Error("submit proofs")
+		return
+	}
+	log.WithField("tx_hash", txHash.Hex()).Info("submit proofs")
+
+	log.Info("process day done")
+}
+
+func (w *Witness) Commit() (dayProofs map[common.Address]*witnessv1.ValidatedProof) {
+	st := time.Now()
+	proof := w.RefreshPendingProof()
+	for miner, proof := range proof {
+		err := w.SealProof(miner, proof)
+		if err != nil {
+			return
+		}
+	}
+	root, err := w.state.Commit()
+	if err != nil {
+		return
+	}
+	log.WithFields(log.Fields{"root": root.Hex(), "cost": time.Since(st).String()}).Info("commit state root")
+	err = w.db.DiskDB().Put([]byte(fmt.Sprintf("sroot:%s", w.date)), root.Bytes())
+	if err != nil {
+		log.WithError(err).Error("failed to update state root")
+		return
+	}
+	return proof
+}
+
+func (w *Witness) SealProof(miner common.Address, proof *witnessv1.ValidatedProof) (err error) {
+	minerObject := w.state.GetMinerObject(miner)
+	minerObject.Workload += proof.Workload
+	minerObject.Balance += proof.Balance
+	err = w.state.UpdateMinerObject(miner, minerObject)
+	if err != nil {
+		return err
+	}
+	log.WithFields(log.Fields{
+		"miner":        miner.Hex(),
+		"old_workload": minerObject.Workload - proof.Workload,
+		"new_workload": minerObject.Workload,
+		"old_balance":  minerObject.Balance - proof.Balance,
+		"new_balance":  minerObject.Balance,
+	}).Info("seal proof")
+	return err
+}
+
+func (w *Witness) RefreshPendingProof() (proof map[common.Address]*witnessv1.ValidatedProof) {
+	w.Lock()
+	defer w.Unlock()
+	proof = make(map[common.Address]*witnessv1.ValidatedProof)
+
+	for miner, pendingProof := range w.pendingProof {
+		proof[miner] = pendingProof
+	}
+	w.pendingProof = make(map[common.Address]*witnessv1.ValidatedProof)
+	return
+}
+
+// CommitMST commit workload of per day
+func (w *Witness) CommitMST(proofMap map[common.Address]*witnessv1.ValidatedProof) (root common.Hash, sum *big.Int, err error) {
+	if len(proofMap) == 0 {
+		return common.Hash{}, big.NewInt(0), nil
+	}
+	rawKeys := make([]common.Address, 0)
+	keys := make([][32]byte, len(proofMap))
+	dbKey := make([]byte, 0)
+	dbVal := make([]byte, 0)
+	vals := make([]*big.Int, len(proofMap))
+	for key := range proofMap {
+		rawKeys = append(rawKeys, key)
+	}
+	sort.Sort(util.AddressSlice(rawKeys))
+	for i, key := range rawKeys {
+		keys[i] = crypto.Keccak256Hash(key.Bytes())
+		dbKey = append(dbKey, keys[i][:]...)
+		vals[i] = new(big.Int).SetUint64(proofMap[key].Workload)
+		dbVal = append(append(dbVal, vals[i].Bytes()...), []byte(":")...)
+	}
+
+	st := time.Now()
+
+	nodes, sums := tree.ComputeMST(keys, vals)
+
+	err = w.db.DiskDB().Put([]byte(fmt.Sprintf("mstroot:%s", w.date)), nodes[0][:])
+	if err != nil {
+		log.Error(err)
+		return
+	}
+	err = w.db.DiskDB().Put([]byte(fmt.Sprintf("mstsum:%s", w.date)), sums[0].Bytes())
+	if err != nil {
+		log.Error(err)
+		return
+	}
+
+	err = w.db.DiskDB().Put([]byte(fmt.Sprintf("mstk:%s", w.date)), dbKey)
+	if err != nil {
+		return
+	}
+	err = w.db.DiskDB().Put([]byte(fmt.Sprintf("mstv:%s", w.date)), dbVal)
+	if err != nil {
+		return
+	}
+	log.WithFields(log.Fields{
+		"root": common.Hash(nodes[0]).Hex(),
+		"sum":  sums[0].String(),
+		"cost": time.Since(st).String(),
+	}).Info("commit MST root")
+
+	return nodes[0], sums[0], nil
+}
+
+// CommitMT commit all workload
+func (w *Witness) CommitMT(objects []*witnessv1.MinerObject) (root common.Hash, err error) {
+	merkleProofs := make(tree.Proofs, 0)
+	dbProofs := make([]byte, 0)
+	for _, object := range objects {
+		payload := append(common.HexToAddress(object.Miner).Bytes(), big.NewInt(0).SetUint64(object.Workload).Bytes()...)
+		_proof := crypto.Keccak256Hash(payload)
+		merkleProofs = append(merkleProofs, _proof)
+		dbProofs = append(dbProofs, _proof[:]...)
+	}
+
+	mtTree, err := tree.NewMerkleTree(merkleProofs)
+	if err != nil {
+		return
+	}
+	root = mtTree.GetRoot()
+
+	st := time.Now()
+	err = w.db.DiskDB().Put([]byte(fmt.Sprintf("mtroot:%s", w.date)), root.Bytes())
+	if err != nil {
+		return
+	}
+	log.WithFields(log.Fields{
+		"k": fmt.Sprintf("mtroot:%s", w.date),
+		"v": root.String(),
+	}).Debug()
+
+	err = w.db.DiskDB().Put([]byte(fmt.Sprintf("mtk:%s", w.date)), dbProofs)
+	if err != nil {
+		return
+	}
+	log.WithFields(log.Fields{
+		"k":        fmt.Sprintf("mtk:%s", w.date),
+		"v_length": len(dbProofs),
+	}).Debug()
+	w.mtTreeCache[w.date] = mtTree
+
+	log.WithFields(log.Fields{
+		"root": root.Hex(),
+		"cost": time.Since(st).String(),
+	}).Info("commit MT root")
+
+	return
+}
+
+func (w *Witness) Ticker() {
+	duration := time.Duration(24) * time.Hour
+	executionTime := time.Date(time.Now().Year(), time.Now().Month(), time.Now().Day(), 0, 0, 0, 0, time.UTC).Add(duration)
+	// executionTime := time.Now().Add(time.Second * 30)
+	waitTime := executionTime.Sub(time.Now())
+	timer := time.NewTimer(waitTime)
+	log.WithField("wait_time", waitTime.String()).Info("prepare commit task")
+	for {
+		<-timer.C
+		w.ProcessDay()
+		executionTime = executionTime.Add(duration)
+		waitTime = executionTime.Sub(time.Now())
+		timer.Reset(waitTime)
+		log.WithField("wait time", waitTime.String()).Info("prepare commit task")
+	}
+}
+
+func (w *Witness) Mock() {
+	addresses := make([]common.Address, 10)
+	rand.Seed(time.Now().Unix())
+	for i := 0; i < 10; i++ {
+		b20 := make([]byte, 20)
+		rand.Read(b20)
+		addresses[i] = common.BytesToAddress(b20)
+	}
+
+	for {
+		time.Sleep(time.Second)
+		w.AddPendingProof(addresses[rand.Intn(10)], []*witnessv1.ValidatedProof{
+			{
+				Workload: uint64((rand.Int63n(9) + 1) * 100),
+			},
+		})
+	}
+}
+
+func (w *Witness) UpdateAddress() {
+	ticker := time.NewTicker(time.Minute * 10)
+	defer ticker.Stop()
+	log.Info("start update address task")
+	for {
+		addrs, err := w.rpc.GetContainerAddresses()
+		if err != nil {
+			log.WithError(err).Error("failed to get container addresses")
+		} else {
+			w.containerAddresses = addrs
+		}
+		addrs, err = w.rpc.GetNMAddresses()
+		if err != nil {
+			log.WithError(err).Error("failed to get NM addresses")
+		} else {
+			w.nmAddresses = addrs
+		}
+		log.WithFields(log.Fields{
+			"container_count": len(w.containerAddresses),
+			"nm_count":        len(w.nmAddresses),
+		}).Info("store contract update address")
+		<-ticker.C
+	}
+}
+
+func (w *Witness) IsContainerAddress(address common.Address) bool {
+	for _, addr := range w.containerAddresses {
+		if addr.Hex() == address.Hex() {
+			return true
+		}
+	}
+	return false
+}
+
+func (w *Witness) IsNMAddress(address common.Address) bool {
+	for _, addr := range w.nmAddresses {
+		if addr.Hex() == address.Hex() {
+			return true
+		}
+	}
+	return false
+}
+
+func (w *Witness) GetMerkleProof(address common.Address) (workload uint64, proofs []common.Hash) {
+	w.Lock()
+	cacheTree, ok := w.mtTreeCache[w.date]
+	w.Unlock()
+	if !ok {
+		// todo
+	}
+
+	object := w.state.GetMinerObject(address)
+	if object == nil {
+		return 0, nil
+	}
+
+	payload := append(address.Bytes(), big.NewInt(0).SetUint64(object.Workload).Bytes()...)
+	leaf := crypto.Keccak256Hash(payload)
+	proofs, err := cacheTree.GetProof(leaf)
+	if err != nil {
+		log.WithError(err).Error("failed to get merkle proof")
+		return 0, make([]common.Hash, 0)
+	}
+	return object.Workload, proofs
+}
+
+func (w *Witness) GetPendingWorkload(address common.Address) (workload uint64) {
+	w.Lock()
+	proof, ok := w.pendingProof[address]
+	w.Unlock()
+	if !ok {
+		return 0
+	}
+	return proof.Workload
+}
+
+func (w *Witness) LoadMerkleProof(date string) {
+	merkleTreeKey := fmt.Sprintf("mtk:%s", date)
+	data, err := w.db.DiskDB().Get([]byte(merkleTreeKey))
+	if err != nil {
+		log.WithError(err).Error("failed to load merkle proof")
+		return
+	}
+
+	proofs := make([]common.Hash, len(data)/32)
+	for i := 0; i < len(data)/32; i++ {
+		copy(proofs[i][:], data[i*32:(i+1)*32])
+	}
+
+	mTree, err := tree.NewMerkleTree(proofs)
+	if err != nil {
+		log.WithError(err).Error("failed to load merkle proof")
+		return
+	}
+	w.Lock()
+	w.mtTreeCache[date] = mTree
+	w.Unlock()
+	log.WithFields(log.Fields{"date": date, "root": mTree.GetRoot().Hex()}).Info("load merkle tree")
+	return
+}

go.mod

@@ -3,24 +3,157 @@ module witness
 go 1.19
 
 require (
+	github.com/btcsuite/btcd/btcec/v2 v2.3.2
+	github.com/ethereum/go-ethereum v1.10.26
+	github.com/gogo/protobuf v1.3.2
+	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
+	github.com/libp2p/go-libp2p v0.26.0
+	github.com/libp2p/go-libp2p-pubsub v0.9.1
+	github.com/multiformats/go-multiaddr v0.12.1
+	github.com/odysseus/odysseus-protocol v0.0.0-00010101000000-000000000000
+	github.com/pkg/errors v0.9.1
 	github.com/prometheus/client_golang v1.18.0
+	github.com/prysmaticlabs/prysm/v3 v3.2.2-rc.0
 	github.com/sirupsen/logrus v1.9.3
 	github.com/urfave/cli/v2 v2.27.1
+	google.golang.org/grpc v1.60.1
 )
 
 require (
 	github.com/BurntSushi/toml v1.3.2 // indirect
+	github.com/VictoriaMetrics/fastcache v1.10.0 // indirect
+	github.com/aristanetworks/goarista v0.0.0-20200805130819-fd197cf57d96 // indirect
+	github.com/benbjohnson/clock v1.3.5 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/containerd/cgroups v1.1.0 // indirect
+	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.3 // indirect
-	github.com/kr/text v0.2.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/davidlazar/go-crypto v0.0.0-20200604182044-b73af7476f6c // indirect
+	github.com/deckarep/golang-set v1.8.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/edsrzf/mmap-go v1.1.0 // indirect
+	github.com/elastic/gosigar v0.14.2 // indirect
+	github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 // indirect
+	github.com/flynn/noise v1.0.0 // indirect
+	github.com/francoispqt/gojay v1.2.13 // indirect
+	github.com/gballet/go-libpcsclite v0.0.0-20191108122812-4678299bea08 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/go-stack/stack v1.8.1 // indirect
+	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
+	github.com/godbus/dbus/v5 v5.1.0 // indirect
+	github.com/golang-jwt/jwt/v4 v4.5.0 // indirect
+	github.com/golang/mock v1.6.0 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb // indirect
+	github.com/google/gopacket v1.1.19 // indirect
+	github.com/google/pprof v0.0.0-20231023181126-ff6d637d2a7b // indirect
+	github.com/google/uuid v1.3.1 // indirect
+	github.com/gorilla/websocket v1.5.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.0.1 // indirect
+	github.com/hashicorp/go-bexpr v0.1.10 // indirect
+	github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.5 // indirect
+	github.com/holiman/bloomfilter/v2 v2.0.3 // indirect
+	github.com/holiman/uint256 v1.2.4 // indirect
+	github.com/huin/goupnp v1.3.0 // indirect
+	github.com/ipfs/go-cid v0.4.1 // indirect
+	github.com/ipfs/go-log/v2 v2.5.1 // indirect
+	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
+	github.com/jbenet/go-temp-err-catcher v0.1.0 // indirect
+	github.com/klauspost/compress v1.17.2 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
+	github.com/koron/go-ssdp v0.0.4 // indirect
+	github.com/libp2p/go-buffer-pool v0.1.0 // indirect
+	github.com/libp2p/go-cidranger v1.1.0 // indirect
+	github.com/libp2p/go-flow-metrics v0.1.0 // indirect
+	github.com/libp2p/go-libp2p-asn-util v0.3.0 // indirect
+	github.com/libp2p/go-msgio v0.3.0 // indirect
+	github.com/libp2p/go-nat v0.2.0 // indirect
+	github.com/libp2p/go-netroute v0.2.1 // indirect
+	github.com/libp2p/go-reuseport v0.4.0 // indirect
+	github.com/libp2p/go-yamux/v4 v4.0.1 // indirect
+	github.com/marten-seemann/tcp v0.0.0-20210406111302-dfbc87cc63fd // indirect
+	github.com/mattn/go-colorable v0.1.8 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mattn/go-runewidth v0.0.13 // indirect
 	github.com/matttproud/golang_protobuf_extensions/v2 v2.0.0 // indirect
+	github.com/miekg/dns v1.1.56 // indirect
+	github.com/mikioh/tcpinfo v0.0.0-20190314235526-30a79bb1804b // indirect
+	github.com/mikioh/tcpopt v0.0.0-20190314235656-172688c1accc // indirect
+	github.com/minio/highwayhash v1.0.1 // indirect
+	github.com/minio/sha256-simd v1.0.1 // indirect
+	github.com/mitchellh/mapstructure v1.4.1 // indirect
+	github.com/mitchellh/pointerstructure v1.2.0 // indirect
+	github.com/mr-tron/base58 v1.2.0 // indirect
+	github.com/multiformats/go-base32 v0.1.0 // indirect
+	github.com/multiformats/go-base36 v0.2.0 // indirect
+	github.com/multiformats/go-multiaddr-dns v0.3.1 // indirect
+	github.com/multiformats/go-multiaddr-fmt v0.1.0 // indirect
+	github.com/multiformats/go-multibase v0.2.0 // indirect
+	github.com/multiformats/go-multicodec v0.9.0 // indirect
+	github.com/multiformats/go-multihash v0.2.3 // indirect
+	github.com/multiformats/go-multistream v0.5.0 // indirect
+	github.com/multiformats/go-varint v0.0.7 // indirect
+	github.com/olekukonko/tablewriter v0.0.5 // indirect
+	github.com/onsi/ginkgo/v2 v2.13.0 // indirect
+	github.com/opencontainers/runtime-spec v1.1.0 // indirect
+	github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58 // indirect
 	github.com/prometheus/client_model v0.5.0 // indirect
 	github.com/prometheus/common v0.45.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/prometheus/tsdb v0.10.0 // indirect
+	github.com/prysmaticlabs/fastssz v0.0.0-20220628121656-93dfe28febab // indirect
+	github.com/prysmaticlabs/go-bitfield v0.0.0-20210809151128-385d8c5e3fb7 // indirect
+	github.com/prysmaticlabs/gohashtree v0.0.2-alpha // indirect
+	github.com/quic-go/qpack v0.4.0 // indirect
+	github.com/quic-go/qtls-go1-20 v0.3.4 // indirect
+	github.com/quic-go/quic-go v0.39.4 // indirect
+	github.com/quic-go/webtransport-go v0.6.0 // indirect
+	github.com/raulk/go-watchdog v1.3.0 // indirect
+	github.com/rivo/uniseg v0.3.4 // indirect
+	github.com/rjeczalik/notify v0.9.1 // indirect
+	github.com/rs/cors v1.7.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/shirou/gopsutil v3.21.11+incompatible // indirect
+	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	github.com/status-im/keycard-go v0.2.0 // indirect
+	github.com/stretchr/testify v1.8.2 // indirect
+	github.com/supranational/blst v0.3.11 // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20220721030215-126854af5e6d // indirect
+	github.com/thomaso-mirodin/intmath v0.0.0-20160323211736-5dc6d854e46e // indirect
+	github.com/tklauser/go-sysconf v0.3.12 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/tyler-smith/go-bip39 v1.1.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20231213231151-1d8dd44e695e // indirect
+	github.com/yusufpapurcu/wmi v1.2.2 // indirect
+	go.uber.org/dig v1.17.1 // indirect
+	go.uber.org/fx v1.20.1 // indirect
+	go.uber.org/mock v0.3.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.26.0 // indirect
+	golang.org/x/crypto v0.18.0 // indirect
+	golang.org/x/exp v0.0.0-20240110193028-0dcbfd608b1e // indirect
+	golang.org/x/mod v0.14.0 // indirect
+	golang.org/x/net v0.20.0 // indirect
+	golang.org/x/sync v0.6.0 // indirect
 	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba // indirect
+	golang.org/x/tools v0.16.0 // indirect
+	google.golang.org/genproto v0.0.0-20240102182953-50ed04b92917 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20231212172506-995d672761c0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240108191215-35c7eff3a6b1 // indirect
 	google.golang.org/protobuf v1.32.0 // indirect
+	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	lukechampine.com/blake3 v1.2.1 // indirect
+	nhooyr.io/websocket v1.8.7 // indirect
 )
+
+replace github.com/odysseus/odysseus-protocol => ../odysseus-protocol
+
+replace github.com/MariusVanDerWijden/tx-fuzz => github.com/MariusVanDerWijden/tx-fuzz v1.3.2

p2p/bootnode_cache.go

+package p2p
+
+import (
+	"encoding/json"
+	"io"
+	"os"
+)
+
+const bootnodefile = ".bootnodes.json"
+
+var bootnodes []string
+
+func loadBootnodesFile() {
+	file, err := os.Open(bootnodefile)
+	if err != nil {
+		return
+	}
+	defer file.Close()
+
+	b, err := io.ReadAll(file)
+	if err != nil {
+		return
+	}
+	_ = json.Unmarshal(b, &bootnodes)
+	return
+}
+
+func attachBootnodeToFile(bootnode string) error {
+	for _, node := range bootnodes {
+		if node == bootnode {
+			return nil
+		}
+	}
+	bootnodes = append(bootnodes, bootnode)
+	b, err := json.Marshal(bootnodes)
+	if err != nil {
+		return err
+	}
+	file, err := os.OpenFile(bootnodefile, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+	_, err = file.Write(b)
+	return err
+
+}

p2p/broadcaster.go

+package p2p
+
+import (
+	"context"
+
+	"github.com/gogo/protobuf/proto"
+	"github.com/pkg/errors"
+)
+
+// Broadcast a message to the p2p network, the message is assumed to be
+// broadcasted to the current fork.
+func (s *Service) Broadcast(ctx context.Context, msg proto.Message, topic string) error {
+	msgBytes, err := proto.Marshal(msg)
+	if err != nil {
+		return err
+	}
+	return s.broadcastObject(ctx, msgBytes, topic)
+}
+
+// method to broadcast messages to other peers in our gossip mesh.
+func (s *Service) broadcastObject(ctx context.Context, obj []byte, topic string) error {
+	if err := s.PublishToTopic(ctx, topic, obj); err != nil {
+		err := errors.Wrap(err, "could not publish message")
+		return err
+	}
+	return nil
+}

p2p/config.go

+package p2p
+
+// Config for the p2p service. These parameters are set from application level flags
+// to initialize the p2p service.
+type Config struct {
+	UseDiscovery        bool
+	StaticPeers         []string
+	BootstrapNodeAddr   []string
+	Discv5BootStrapAddr []string
+	LocalIP             string
+	HostAddress         string
+	PrivateKeyPath      string
+	TCPPort             uint
+	UDPPort             uint
+	MaxPeers            uint
+	MaxInboundPeers     uint
+	MaxOutboundPeers    uint
+	IgnoreLocalIP       bool
+	SingleNode          bool
+	EnableProm          bool
+	NebulaGrpcAddress   string
+}

p2p/connection_gater.go

+package p2p
+
+import (
+	"runtime"
+
+	"github.com/libp2p/go-libp2p/core/control"
+	"github.com/libp2p/go-libp2p/core/network"
+	"github.com/libp2p/go-libp2p/core/peer"
+	"github.com/multiformats/go-multiaddr"
+	manet "github.com/multiformats/go-multiaddr/net"
+	"github.com/sirupsen/logrus"
+)
+
+// InterceptPeerDial tests whether we're permitted to Dial the specified peer.
+func (_ *Service) InterceptPeerDial(_ peer.ID) (allow bool) {
+	return true
+}
+
+// InterceptAddrDial tests whether we're permitted to dial the specified
+// multiaddr for the given peer.
+func (s *Service) InterceptAddrDial(pid peer.ID, m multiaddr.Multiaddr) (allow bool) {
+	// Disallow bad peers from dialing in.
+	return !s.peers.IsBad(pid)
+}
+
+// InterceptAccept checks whether the incidental inbound connection is allowed.
+func (s *Service) InterceptAccept(n network.ConnMultiaddrs) (allow bool) {
+	// Deny all incoming connections before we are ready
+	if !s.started {
+		return false
+	}
+	if !s.validateDial(n.RemoteMultiaddr()) {
+		// Allow other go-routines to run in the event
+		// we receive a large amount of junk connections.
+		runtime.Gosched()
+		log.WithFields(logrus.Fields{"peer": n.RemoteMultiaddr(),
+			"reason": "exceeded dial limit"}).Trace("Not accepting inbound dial from ip address")
+		return false
+	}
+	if s.isPeerAtLimit(true /* inbound */) {
+		log.WithFields(logrus.Fields{"peer": n.RemoteMultiaddr(),
+			"reason": "at peer limit"}).Trace("Not accepting inbound dial")
+		return false
+	}
+	return true
+}
+
+// InterceptSecured tests whether a given connection, now authenticated,
+// is allowed.
+func (_ *Service) InterceptSecured(_ network.Direction, _ peer.ID, _ network.ConnMultiaddrs) (allow bool) {
+	return true
+}
+
+// InterceptUpgraded tests whether a fully capable connection is allowed.
+func (_ *Service) InterceptUpgraded(_ network.Conn) (allow bool, reason control.DisconnectReason) {
+	return true, 0
+}
+
+func (s *Service) validateDial(addr multiaddr.Multiaddr) bool {
+	_, err := manet.ToIP(addr)
+	return err == nil
+}

p2p/discovery.go

+package p2p
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"net"
+	"strings"
+	"time"
+
+	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/p2p/enode"
+	"github.com/ethereum/go-ethereum/p2p/enr"
+	"github.com/libp2p/go-libp2p/core/network"
+	"github.com/libp2p/go-libp2p/core/peer"
+	ma "github.com/multiformats/go-multiaddr"
+	"github.com/pkg/errors"
+	ecdsaprysm "github.com/prysmaticlabs/prysm/v3/crypto/ecdsa"
+)
+
+// Listener defines the discovery V5 network interface that is used
+// to communicate with other peers.
+type Listener interface {
+	Self() *enode.Node
+	Close()
+	Lookup(enode.ID) []*enode.Node
+	Resolve(*enode.Node) *enode.Node
+	RandomNodes() enode.Iterator
+	Ping(*enode.Node) error
+	RequestENR(*enode.Node) (*enode.Node, error)
+	LocalNode() *enode.LocalNode
+}
+
+// listen for new nodes watches for new nodes in the network and adds them to the peerstore.
+func (s *Service) listenForNewNodes() {
+	iterator := s.dv5Listener.RandomNodes()
+	iterator = enode.Filter(iterator, s.filterPeer)
+	defer iterator.Close()
+	for {
+		// Exit if service's context is canceled
+		if s.ctx.Err() != nil {
+			break
+		}
+
+		if s.isPeerAtLimit(false) {
+			// Pause the main loop for a period to stop looking
+			// for new peers.
+			log.Trace("Not looking for peers, at peer limit")
+			time.Sleep(pollingPeriod)
+			continue
+		}
+
+		exists := iterator.Next()
+		if !exists {
+			break
+		}
+		node := iterator.Node()
+		peerInfo, _, err := convertToAddrInfo(node)
+		if err != nil {
+			log.WithError(err).Error("Could not convert to peer info")
+			continue
+		}
+		// Make sure that peer is not dialed too often, for each connection attempt there's a backoff period.
+		s.peers.RandomizeBackOff(peerInfo.ID)
+
+		go func(info *peer.AddrInfo) {
+			if err := s.connectWithPeer(s.ctx, *info); err != nil {
+				log.WithError(err).Tracef("Could not connect with peer %s", info.String())
+			}
+		}(peerInfo)
+	}
+}
+
+func (s *Service) createListener(
+	ipAddr net.IP,
+	privKey *ecdsa.PrivateKey,
+) (*discover.UDPv5, error) {
+	// BindIP is used to specify the ip
+	// on which we will bind our listener on
+	// by default we will listen to all interfaces.
+	var bindIP net.IP
+	switch udpVersionFromIP(ipAddr) {
+	case "udp4":
+		bindIP = net.IPv4zero
+	case "udp6":
+		bindIP = net.IPv6zero
+	default:
+		return nil, errors.New("invalid ip provided")
+	}
+
+	// If local ip is specified then use that instead.
+	if s.cfg.LocalIP != "" {
+		ipAddr = net.ParseIP(s.cfg.LocalIP)
+		if ipAddr == nil {
+			return nil, errors.New("invalid local ip provided")
+		}
+		bindIP = ipAddr
+	}
+	udpAddr := &net.UDPAddr{
+		IP:   bindIP,
+		Port: int(s.cfg.UDPPort),
+	}
+	// Listen to all network interfaces
+	// for both ip protocols.
+	networkVersion := "udp"
+	conn, err := net.ListenUDP(networkVersion, udpAddr)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not listen to UDP")
+	}
+
+	localNode, err := s.createLocalNode(
+		privKey,
+		ipAddr,
+		int(s.cfg.UDPPort),
+		int(s.cfg.TCPPort),
+	)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not create local node")
+	}
+	if s.cfg.HostAddress != "" {
+		hostIP := net.ParseIP(s.cfg.HostAddress)
+		if hostIP.To4() == nil && hostIP.To16() == nil {
+			log.Errorf("Invalid host address given: %s", hostIP.String())
+		} else {
+			localNode.SetFallbackIP(hostIP)
+			localNode.SetStaticIP(hostIP)
+		}
+	}
+
+	dv5Cfg := discover.Config{
+		PrivateKey: privKey,
+	}
+	dv5Cfg.Bootnodes = []*enode.Node{}
+	for _, addr := range s.cfg.Discv5BootStrapAddr {
+		bootNode, err := enode.Parse(enode.ValidSchemes, addr)
+		if err != nil {
+			return nil, errors.Wrap(err, "could not bootstrap addr")
+		}
+
+		if s.cfg.IgnoreLocalIP && s.isLocalIP(bootNode.IP().String()) {
+			continue
+		}
+
+		dv5Cfg.Bootnodes = append(dv5Cfg.Bootnodes, bootNode)
+	}
+
+	listener, err := discover.ListenV5(conn, localNode, dv5Cfg)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not listen to discV5")
+	}
+	return listener, nil
+}
+
+func (s *Service) createLocalNode(
+	privKey *ecdsa.PrivateKey,
+	ipAddr net.IP,
+	udpPort, tcpPort int,
+) (*enode.LocalNode, error) {
+	db, err := enode.OpenDB("")
+	if err != nil {
+		return nil, errors.Wrap(err, "could not open node's peer database")
+	}
+	localNode := enode.NewLocalNode(db, privKey)
+
+	ipEntry := enr.IP(ipAddr)
+	udpEntry := enr.UDP(udpPort)
+	tcpEntry := enr.TCP(tcpPort)
+	localNode.Set(ipEntry)
+	localNode.Set(udpEntry)
+	localNode.Set(tcpEntry)
+	localNode.SetFallbackIP(ipAddr)
+	localNode.SetFallbackUDP(udpPort)
+
+	return localNode, nil
+}
+
+func (s *Service) startDiscoveryV5(
+	addr net.IP,
+	privKey *ecdsa.PrivateKey,
+) (*discover.UDPv5, error) {
+	listener, err := s.createListener(addr, privKey)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not create listener")
+	}
+	record := listener.Self()
+	log.WithField("ENR", record.String()).Info("Started discovery v5")
+	enrRecordToFile(record.String())
+	return listener, nil
+}
+
+// filterPeer validates each node that we retrieve from our dht. We
+// try to ascertain that the peer can be a valid protocol peer.
+// Validity Conditions:
+//  1. The local node is still actively looking for peers to
+//     connect to.
+//  2. Peer has a valid IP and TCP port set in their enr.
+//  3. Peer hasn't been marked as 'bad'
+//  4. Peer is not currently active or connected.
+//  5. Peer is ready to receive incoming connections.
+//  6. Peer's fork digest in their ENR matches that of
+//     our localnodes.
+func (s *Service) filterPeer(node *enode.Node) bool {
+	// Ignore nil node entries passed in.
+	if node == nil {
+		return false
+	}
+	// ignore nodes with no ip address stored.
+	if node.IP() == nil {
+		return false
+	}
+	// do not dial nodes with their tcp ports not set
+	if err := node.Record().Load(enr.WithEntry("tcp", new(enr.TCP))); err != nil {
+		if !enr.IsNotFound(err) {
+			log.WithError(err).Debug("Could not retrieve tcp port")
+		}
+		return false
+	}
+	peerData, multiAddr, err := convertToAddrInfo(node)
+	if err != nil {
+		log.WithError(err).Debug("Could not convert to peer data")
+		return false
+	}
+
+	if s.peers.IsBad(peerData.ID) {
+		return false
+	}
+
+	if s.peers.IsActive(peerData.ID) {
+		// save cpu cycles by not dialing peers that are already connected.
+		return false
+	}
+
+	if s.host.Network().Connectedness(peerData.ID) == network.Connected {
+		return false
+	}
+
+	if !s.peers.IsReadyToDial(peerData.ID) {
+		return false
+	}
+
+	s.peers.Add(node.Record(), peerData.ID, multiAddr, network.DirUnknown)
+	return true
+}
+
+// PeersFromStringAddrs convers peer raw ENRs into multiaddrs for p2p.
+func PeersFromStringAddrs(addrs []string) ([]ma.Multiaddr, error) {
+	var allAddrs []ma.Multiaddr
+	enodeString, _, multiAddrString := parseGenericAddrs(addrs)
+	for _, stringAddr := range multiAddrString {
+		addr, err := multiAddrFromString(stringAddr)
+		if err != nil {
+			return nil, errors.Wrapf(err, "Could not get multiaddr from string")
+		}
+		allAddrs = append(allAddrs, addr)
+	}
+	for _, stringAddr := range enodeString {
+		enodeAddr, err := enode.Parse(enode.ValidSchemes, stringAddr)
+		if err != nil {
+			return nil, errors.Wrapf(err, "Could not get enode from string")
+		}
+		addr, err := convertToSingleMultiAddr(enodeAddr)
+		if err != nil {
+			return nil, errors.Wrapf(err, "Could not get multiaddr")
+		}
+		allAddrs = append(allAddrs, addr)
+	}
+	return allAddrs, nil
+}
+
+func parseBootStrapAddrs(addrs []string) (discv5Nodes []string, nodeIPs []string) {
+	enrAddrs, domainAddrs := splitAddrs(addrs)
+	enrAddrs = append(enrAddrs, parseDNSAddrs(domainAddrs)...)
+	discv5Nodes, nodeIPs, _ = parseGenericAddrs(enrAddrs)
+	if len(discv5Nodes) == 0 {
+		log.Warn("No bootstrap addresses supplied")
+	}
+	return discv5Nodes, nodeIPs
+}
+
+// splitAddrs splits a list of addresses into two lists, one enr addresses and one domain addresses.
+func splitAddrs(addrs []string) (enrAddrs, domainAddrs []string) {
+	for _, addr := range addrs {
+		if isDomain(addr) {
+			domainAddrs = append(domainAddrs, addr)
+			continue
+		}
+		enrAddrs = append(enrAddrs, addr)
+	}
+	return enrAddrs, domainAddrs
+}
+
+func parseGenericAddrs(addrs []string) (enodeString, ipString, multiAddrString []string) {
+	for _, addr := range addrs {
+		if addr == "" {
+			// Ignore empty entries
+			continue
+		}
+		eNode, err := enode.Parse(enode.ValidSchemes, addr)
+		if err == nil {
+			enodeString = append(enodeString, addr)
+			ipString = append(ipString, eNode.IP().String())
+			continue
+		}
+		_, err = multiAddrFromString(addr)
+		if err == nil {
+			multiAddrString = append(multiAddrString, addr)
+			ipAddr := strings.Split(addr, "/")[2]
+			ipString = append(ipString, ipAddr)
+			continue
+		}
+		log.WithError(err).Errorf("Invalid address of %s provided", addr)
+	}
+	return enodeString, ipString, multiAddrString
+}
+
+func isDomain(addr string) bool {
+	return strings.Contains(addr, ".")
+}
+
+// parseDNSAddrs parses a list of domain addresses and returns a list of ENR addresses.
+func parseDNSAddrs(domains []string) (bootstrapNodes []string) {
+	for _, domain := range domains {
+		nodes := lookupDNS(domain)
+		bootstrapNodes = append(bootstrapNodes, nodes...)
+	}
+	return
+}
+
+func lookupDNS(domain string) (nodes []string) {
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+	records, err := net.DefaultResolver.LookupTXT(ctx, domain)
+	if err != nil {
+		log.WithField("domain", domain).WithError(err).Error("Could not lookup TXT record")
+		return nil
+	}
+
+	for _, record := range records {
+		if strings.HasPrefix(record, "enr:") {
+			nodes = append(nodes, record)
+		}
+	}
+	return
+}
+
+func convertToMultiAddr(nodes []*enode.Node) []ma.Multiaddr {
+	var multiAddrs []ma.Multiaddr
+	for _, node := range nodes {
+		// ignore nodes with no ip address stored
+		if node.IP() == nil {
+			continue
+		}
+		multiAddr, err := convertToSingleMultiAddr(node)
+		if err != nil {
+			log.WithError(err).Error("Could not convert to multiAddr")
+			continue
+		}
+		multiAddrs = append(multiAddrs, multiAddr)
+	}
+	return multiAddrs
+}
+
+func convertToAddrInfo(node *enode.Node) (*peer.AddrInfo, ma.Multiaddr, error) {
+	multiAddr, err := convertToSingleMultiAddr(node)
+	if err != nil {
+		return nil, nil, err
+	}
+	info, err := peer.AddrInfoFromP2pAddr(multiAddr)
+	if err != nil {
+		return nil, nil, err
+	}
+	return info, multiAddr, nil
+}
+
+func convertToSingleMultiAddr(node *enode.Node) (ma.Multiaddr, error) {
+	pubkey := node.Pubkey()
+	assertedKey, err := ecdsaprysm.ConvertToInterfacePubkey(pubkey)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not get pubkey")
+	}
+	id, err := peer.IDFromPublicKey(assertedKey)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not get peer id")
+	}
+	return multiAddressBuilderWithID(node.IP().String(), "tcp", uint(node.TCP()), id)
+}
+
+func multiAddrFromString(address string) (ma.Multiaddr, error) {
+	return ma.NewMultiaddr(address)
+}
+
+func udpVersionFromIP(ipAddr net.IP) string {
+	if ipAddr.To4() != nil {
+		return "udp4"
+	}
+	return "udp6"
+}
+
+func (s *Service) isPeerAtLimit(inbound bool) bool {
+	currentConns := len(s.host.Network().Peers())
+	if inbound {
+		currentInboundConns := len(s.peers.InboundConnected())
+		if currentInboundConns >= int(s.cfg.MaxInboundPeers) {
+			return true
+		}
+	} else {
+		currentOutboundConns := len(s.peers.OutboundConnected())
+		if currentOutboundConns >= int(s.cfg.MaxOutboundPeers) {
+			return true
+		}
+	}
+
+	activePeers := len(s.peers.Active())
+	maxPeers := int(s.cfg.MaxPeers)
+
+	return currentConns >= maxPeers || activePeers >= maxPeers
+}

p2p/discovery_test.go

+package p2p
+
+import (
+	"testing"
+
+	"github.com/ethereum/go-ethereum/p2p/enode"
+)
+
+func TestDecodeV5(t *testing.T) {
+	nodes := []string{
+		"enr:-JG4QL9QdmQjI-AOv-zFL1oaUAcWP6dPXBBOUAEXE_z4KZNfNTYDfmtAvxq-E0Xl1cqWGO_WmPldHoZIaVKzA0moWQ-GAYupV_MKgmlkgnY0gmlwhMCoAdOJc2VjcDI1NmsxoQLvx1jTRx75jpj8jD3KJ3FCZ_6UiICRIQJ_1MWmVx0IbYN0Y3CCdn6DdWRwgnZ-",
+		"enr:-JG4QPGTzcn6tp8UqoSmEBBj5f0_42wonWmoedFgvncdZL3Qf0DCEQVzDSHGi9jM35qdD76rvpWFuGpQ_rmoX14ZnACGAYupV_plgmlkgnY0gmlwhMCoAdOJc2VjcDI1NmsxoQLvx1jTRx75jpj8jD3KJ3FCZ_6UiICRIQJ_1MWmVx0IbYN0Y3CCdn6DdWRwgnZ-",
+		"enr:-JG4QP1aYRCaCknvIa3hSqE1zAUrm203DNFcvS8E1lQkqHq-PR0sQhIkzK7L4ZLLLPOijD9BTeCLWi8-0LVORt63dimGAYutv-WkgmlkgnY0gmlwhMCoAdyJc2VjcDI1NmsxoQJ81pyuyqa2QoPztOPsCqpkcW1gJwUxOcSJuWr9VUNavIN0Y3CCdn2DdWRwgnZ-",
+	}
+	r1, r2, r3 := parseGenericAddrs(nodes)
+	t.Log(r1)
+	t.Log(r2)
+	t.Log(r3)
+
+	for _, addr := range r1 {
+		bootnode, err := enode.Parse(enode.ValidSchemes, addr)
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Log(bootnode.String())
+		maddr, _ := convertToSingleMultiAddr(bootnode)
+		t.Log(maddr.String())
+	}
+
+}

p2p/handshake.go

+package p2p
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"sync"
+	"time"
+
+	"witness/p2p/peers"
+
+	"github.com/libp2p/go-libp2p/core/network"
+	"github.com/libp2p/go-libp2p/core/peer"
+	"github.com/sirupsen/logrus"
+)
+
+const (
+	// The time to wait for a status request.
+	timeForStatus = 10 * time.Second
+)
+
+func peerMultiaddrString(conn network.Conn) string {
+	return fmt.Sprintf("%s/p2p/%s", conn.RemoteMultiaddr().String(), conn.RemotePeer().String())
+}
+
+// AddConnectionHandler adds a callback function which handles the connection with a
+// newly added peer. It performs a handshake with that peer by sending a hello request
+// and validating the response from the peer.
+func (s *Service) AddConnectionHandler(reqFunc, goodByeFunc func(ctx context.Context, id peer.ID) error) {
+	// Peer map and lock to keep track of current connection attempts.
+	peerMap := make(map[peer.ID]bool)
+	peerLock := new(sync.Mutex)
+
+	// This is run at the start of each connection attempt, to ensure
+	// that there aren't multiple inflight connection requests for the
+	// same peer at once.
+	peerHandshaking := func(id peer.ID) bool {
+		peerLock.Lock()
+		defer peerLock.Unlock()
+
+		if peerMap[id] {
+			return true
+		}
+
+		peerMap[id] = true
+		return false
+	}
+
+	peerFinished := func(id peer.ID) {
+		peerLock.Lock()
+		defer peerLock.Unlock()
+
+		delete(peerMap, id)
+	}
+
+	s.host.Network().Notify(&network.NotifyBundle{
+		ConnectedF: func(net network.Network, conn network.Conn) {
+			remotePeer := conn.RemotePeer()
+			disconnectFromPeer := func() {
+				s.peers.SetConnectionState(remotePeer, peers.PeerDisconnecting)
+				// Only attempt a goodbye if we are still connected to the peer.
+				if s.host.Network().Connectedness(remotePeer) == network.Connected {
+					if err := goodByeFunc(context.TODO(), remotePeer); err != nil {
+						log.WithError(err).Error("Unable to disconnect from peer")
+					}
+				}
+				s.peers.SetConnectionState(remotePeer, peers.PeerDisconnected)
+			}
+			// Connection handler must be non-blocking as part of libp2p design.
+			go func() {
+				if peerHandshaking(remotePeer) {
+					// Exit this if there is already another connection
+					// request in flight.
+					return
+				}
+				defer peerFinished(remotePeer)
+				// Handle the various pre-existing conditions that will result in us not handshaking.
+				peerConnectionState, err := s.peers.ConnectionState(remotePeer)
+				if err == nil && (peerConnectionState == peers.PeerConnected || peerConnectionState == peers.PeerConnecting) {
+					log.WithField("currentState", peerConnectionState).WithField("reason", "already active").Trace("Ignoring connection request")
+					return
+				}
+				s.peers.Add(nil /* ENR */, remotePeer, conn.RemoteMultiaddr(), conn.Stat().Direction)
+				// Defensive check in the event we still get a bad peer.
+				if s.peers.IsBad(remotePeer) {
+					log.WithField("reason", "bad peer").Trace("Ignoring connection request")
+					disconnectFromPeer()
+					return
+				}
+				validPeerConnection := func() {
+					s.peers.SetConnectionState(conn.RemotePeer(), peers.PeerConnected)
+					// Go through the handshake process.
+					log.WithFields(logrus.Fields{
+						"direction":   conn.Stat().Direction,
+						"multiAddr":   peerMultiaddrString(conn),
+						"activePeers": len(s.peers.Active()),
+					}).Info("Peer connected")
+				}
+
+				// Do not perform handshake on inbound dials.
+				if conn.Stat().Direction == network.DirInbound {
+					// Wait for peer to initiate handshake
+					time.Sleep(timeForStatus)
+
+					// Exit if we are disconnected with the peer.
+					if s.host.Network().Connectedness(remotePeer) != network.Connected {
+						return
+					}
+
+					validPeerConnection()
+					return
+				}
+
+				s.peers.SetConnectionState(conn.RemotePeer(), peers.PeerConnecting)
+				if err := reqFunc(context.TODO(), conn.RemotePeer()); err != nil && err != io.EOF {
+					log.WithError(err).Trace("Handshake failed")
+					disconnectFromPeer()
+					return
+				}
+				validPeerConnection()
+			}()
+		},
+	})
+}
+
+// AddDisconnectionHandler disconnects from peers.  It handles updating the peer status.
+// This also calls the handler responsible for maintaining other parts of the sync or p2p system.
+func (s *Service) AddDisconnectionHandler(handler func(ctx context.Context, id peer.ID) error) {
+	s.host.Network().Notify(&network.NotifyBundle{
+		DisconnectedF: func(net network.Network, conn network.Conn) {
+			log := log.WithField("multiAddr", peerMultiaddrString(conn))
+			// Must be handled in a goroutine as this callback cannot be blocking.
+			go func() {
+				// Exit early if we are still connected to the peer.
+				if net.Connectedness(conn.RemotePeer()) == network.Connected {
+					return
+				}
+				priorState, err := s.peers.ConnectionState(conn.RemotePeer())
+				if err != nil {
+					// Can happen if the peer has already disconnected, so...
+					priorState = peers.PeerDisconnected
+				}
+				s.peers.SetConnectionState(conn.RemotePeer(), peers.PeerDisconnecting)
+				if err := handler(context.TODO(), conn.RemotePeer()); err != nil {
+					log.WithError(err).Error("Disconnect handler failed")
+				}
+				s.peers.SetConnectionState(conn.RemotePeer(), peers.PeerDisconnected)
+				// Only log disconnections if we were fully connected.
+				if priorState == peers.PeerConnected {
+					log.WithField("activePeers", len(s.peers.Active())).Info("Peer disconnected")
+				}
+			}()
+		},
+	})
+}

p2p/log.go

+package p2p
+
+import (
+	"strings"
+
+	"github.com/libp2p/go-libp2p/core/peer"
+	ma "github.com/multiformats/go-multiaddr"
+	"github.com/sirupsen/logrus"
+)
+
+var log = logrus.WithField("module", "p2p")
+
+func logIPAddr(id peer.ID, addrs ...ma.Multiaddr) {
+	var correctAddr ma.Multiaddr
+	for _, addr := range addrs {
+		if strings.Contains(addr.String(), "/ip4/") || strings.Contains(addr.String(), "/ip6/") {
+			correctAddr = addr
+			break
+		}
+	}
+	if correctAddr != nil {
+		log.WithField(
+			"multiAddr",
+			correctAddr.String()+"/p2p/"+id.String(),
+		).Info("Node started p2p server")
+	}
+}
+
+func logExternalIPAddr(id peer.ID, addr string, port uint) {
+	if addr != "" {
+		multiAddr, err := MultiAddressBuilder(addr, port)
+		if err != nil {
+			log.WithError(err).Error("Could not create multiaddress")
+			return
+		}
+		log.WithField(
+			"multiAddr",
+			multiAddr.String()+"/p2p/"+id.String(),
+		).Info("Node started external p2p server")
+	}
+}

p2p/message_id.go

+package p2p
+
+import (
+	"fmt"
+
+	pubsubpb "github.com/libp2p/go-libp2p-pubsub/pb"
+	"github.com/prysmaticlabs/prysm/v3/crypto/hash"
+)
+
+func msgID(pmsg *pubsubpb.Message) string {
+	h := hash.Hash(pmsg.Data)
+	return fmt.Sprintf("%x", h[:20])
+}

p2p/message_id_test.go

+package p2p
+
+import (
+	"testing"
+
+	pubsubpb "github.com/libp2p/go-libp2p-pubsub/pb"
+)
+
+func TestMessageID(t *testing.T) {
+	tt := []pubsubpb.Message{
+		{
+			Data: []byte("hello"),
+		},
+		{
+			Data: []byte("world"),
+		},
+	}
+	wants := []string{
+		"2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c",
+		"486ea46224d1bb4fb680f34f7c9ad96a8f24ec88",
+	}
+
+	for i := range tt {
+		t.Run(string(tt[i].Data), func(t *testing.T) {
+			if msgID(&tt[i]) != wants[i] {
+				t.Errorf("Wanted %s, got %s", wants[i], msgID(&tt[i]))
+			}
+		})
+	}
+}

p2p/options.go

+package p2p
+
+import (
+	"crypto/ecdsa"
+	"fmt"
+	"net"
+	"witness/version"
+
+	"github.com/libp2p/go-libp2p"
+	"github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/p2p/muxer/yamux"
+	"github.com/libp2p/go-libp2p/p2p/security/noise"
+	"github.com/libp2p/go-libp2p/p2p/transport/tcp"
+	ma "github.com/multiformats/go-multiaddr"
+	"github.com/pkg/errors"
+	ecdsaprysm "github.com/prysmaticlabs/prysm/v3/crypto/ecdsa"
+)
+
+// MultiAddressBuilder takes in an ip address string and port to produce a go multiaddr format.
+func MultiAddressBuilder(ipAddr string, port uint) (ma.Multiaddr, error) {
+	parsedIP := net.ParseIP(ipAddr)
+	if parsedIP.To4() == nil && parsedIP.To16() == nil {
+		return nil, errors.Errorf("invalid ip address provided: %s", ipAddr)
+	}
+	if parsedIP.To4() != nil {
+		return ma.NewMultiaddr(fmt.Sprintf("/ip4/%s/tcp/%d", ipAddr, port))
+	}
+	return ma.NewMultiaddr(fmt.Sprintf("/ip6/%s/tcp/%d", ipAddr, port))
+}
+
+// buildOptions for the libp2p host.
+func (s *Service) buildOptions(ip net.IP, priKey *ecdsa.PrivateKey) []libp2p.Option {
+	cfg := s.cfg
+	listen, err := MultiAddressBuilder(ip.String(), cfg.TCPPort)
+	if err != nil {
+		log.WithError(err).Fatal("Failed to p2p listen")
+	}
+	if cfg.LocalIP != "" {
+		if net.ParseIP(cfg.LocalIP) == nil {
+			log.Fatalf("Invalid local ip provided: %s", cfg.LocalIP)
+		}
+		listen, err = MultiAddressBuilder(cfg.LocalIP, cfg.TCPPort)
+		if err != nil {
+			log.WithError(err).Fatal("Failed to p2p listen")
+		}
+	}
+	ifaceKey, err := ecdsaprysm.ConvertToInterfacePrivkey(priKey)
+	if err != nil {
+		log.WithError(err).Fatal("Failed to retrieve private key")
+	}
+	id, err := peer.IDFromPublicKey(ifaceKey.GetPublic())
+	if err != nil {
+		log.WithError(err).Fatal("Failed to retrieve peer id")
+	}
+	log.Infof("Running node with peer id of %s ", id.String())
+	myPeerIDToFile(id.String())
+
+	log.Debugf("listen %s", listen.String())
+
+	options := []libp2p.Option{
+		privKeyOption(priKey),
+		libp2p.ListenAddrs(listen),
+		libp2p.UserAgent(version.Version),
+		libp2p.ConnectionGater(s),
+		libp2p.Transport(tcp.NewTCPTransport),
+		libp2p.Muxer("/yamux/6.7.0", yamux.DefaultTransport),
+		libp2p.DefaultMuxers,
+	}
+
+	options = append(options, libp2p.Security(noise.ID, noise.New))
+	options = append(options, libp2p.DisableRelay())
+
+	if cfg.HostAddress != "" {
+		options = append(options, libp2p.AddrsFactory(func(addrs []ma.Multiaddr) []ma.Multiaddr {
+			external, err := MultiAddressBuilder(cfg.HostAddress, cfg.TCPPort)
+			if err != nil {
+				log.WithError(err).Error("Unable to create external multiaddress")
+			} else {
+				addrs = append(addrs, external)
+			}
+			return addrs
+		}))
+	}
+
+	return options
+}
+
+func multiAddressBuilderWithID(ipAddr, protocol string, port uint, id peer.ID) (ma.Multiaddr, error) {
+	parsedIP := net.ParseIP(ipAddr)
+	if parsedIP.To4() == nil && parsedIP.To16() == nil {
+		return nil, errors.Errorf("invalid ip address provided: %s", ipAddr)
+	}
+	if id.String() == "" {
+		return nil, errors.New("empty peer id given")
+	}
+	if parsedIP.To4() != nil {
+		return ma.NewMultiaddr(fmt.Sprintf("/ip4/%s/%s/%d/p2p/%s", ipAddr, protocol, port, id.String()))
+	}
+	return ma.NewMultiaddr(fmt.Sprintf("/ip6/%s/%s/%d/p2p/%s", ipAddr, protocol, port, id.String()))
+}
+
+// Adds a private key to the libp2p option if the option was provided.
+// If the private key file is missing or cannot be read, or if the
+// private key contents cannot be marshaled, an exception is thrown.
+func privKeyOption(privkey *ecdsa.PrivateKey) libp2p.Option {
+	return func(cfg *libp2p.Config) error {
+		ifaceKey, err := ecdsaprysm.ConvertToInterfacePrivkey(privkey)
+		if err != nil {
+			return err
+		}
+		log.Debug("ECDSA private key generated")
+		return cfg.Apply(libp2p.Identity(ifaceKey))
+	}
+}

p2p/options_test.go

+package p2p
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"net"
+	"os"
+	"reflect"
+	"testing"
+
+	gethCrypto "github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/p2p/enode"
+	"github.com/ethereum/go-ethereum/p2p/enr"
+	"github.com/libp2p/go-libp2p"
+	"github.com/libp2p/go-libp2p/core/crypto"
+	ecdsaprysm "github.com/prysmaticlabs/prysm/v3/crypto/ecdsa"
+	"github.com/prysmaticlabs/prysm/v3/network"
+)
+
+func TestPrivateKeyLoading(t *testing.T) {
+	file, err := os.CreateTemp(t.TempDir(), "key")
+	if err != nil {
+		t.Fatal(err)
+	}
+	key, _, err := crypto.GenerateSecp256k1Key(rand.Reader)
+	if err != nil {
+		t.Fatal(err, "Could not generate key")
+	}
+	raw, err := key.Raw()
+	if err != nil {
+		panic(err)
+	}
+	out := hex.EncodeToString(raw)
+
+	err = os.WriteFile(file.Name(), []byte(out), 0666)
+	if err != nil {
+		t.Fatal(err, "Could not write key to file")
+	}
+	log.WithField("file", file.Name()).WithField("key", out).Info("Wrote key to file")
+	cfg := &Config{
+		PrivateKeyPath: file.Name(),
+	}
+	pKey, err := privKey(cfg)
+	if err != nil {
+		t.Fatal(err, "Could not apply option")
+	}
+	newPkey, err := ecdsaprysm.ConvertToInterfacePrivkey(pKey)
+	if err != nil {
+		panic(err)
+	}
+	rawBytes, err := key.Raw()
+	if err != nil {
+		panic(err)
+	}
+	newRaw, err := newPkey.Raw()
+	if err != nil {
+		panic(err)
+	}
+	if !reflect.DeepEqual(rawBytes, newRaw) {
+		t.Fatal("Private keys do not match")
+	}
+}
+
+func TestIPV6Support(t *testing.T) {
+	key, err := gethCrypto.GenerateKey()
+	if err != nil {
+		t.Fatal(err)
+	}
+	db, err := enode.OpenDB("")
+	if err != nil {
+		log.Error("could not open node's peer database")
+	}
+	lNode := enode.NewLocalNode(db, key)
+	mockIPV6 := net.IP{0xff, 0x02, 0xAA, 0, 0x1F, 0, 0x2E, 0, 0, 0x36, 0x45, 0, 0, 0, 0, 0x02}
+	lNode.Set(enr.IP(mockIPV6))
+	ma, err := convertToSingleMultiAddr(lNode.Node())
+	if err != nil {
+		t.Fatal(err)
+	}
+	ipv6Exists := false
+	for _, p := range ma.Protocols() {
+		if p.Name == "ip4" {
+			t.Error("Got ip4 address instead of ip6")
+		}
+		if p.Name == "ip6" {
+			ipv6Exists = true
+		}
+	}
+	if !ipv6Exists {
+		t.Error("Multiaddress did not have ipv6 protocol")
+	}
+}
+
+func TestDefaultMultiplexers(t *testing.T) {
+	var cfg libp2p.Config
+	_ = cfg
+	p2pCfg := &Config{
+		TCPPort: 2000,
+		UDPPort: 2000,
+	}
+	svc := &Service{cfg: p2pCfg}
+	var err error
+	svc.privKey, err = privKey(svc.cfg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	ipAddr := network.IPAddr()
+	opts := svc.buildOptions(ipAddr, svc.privKey)
+	err = cfg.Apply(append(opts, libp2p.FallbackDefaults)...)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if "/mplex/6.7.0" != cfg.Muxers[0].ID {
+		t.Fatal("Mplex not set as default")
+	}
+	if "/yamux/1.0.0" != cfg.Muxers[1].ID {
+		t.Fatal("Yamux not set as default")
+	}
+}

p2p/peers/peers.go

+package peers
+
+import (
+	"context"
+	"math"
+	"math/rand"
+	"time"
+
+	"github.com/ethereum/go-ethereum/p2p/enr"
+	"github.com/libp2p/go-libp2p/core/network"
+	"github.com/libp2p/go-libp2p/core/peer"
+	ma "github.com/multiformats/go-multiaddr"
+	manet "github.com/multiformats/go-multiaddr/net"
+	"github.com/prysmaticlabs/prysm/v3/beacon-chain/p2p/peers/peerdata"
+)
+
+const (
+	// MinBackOffDuration minimum amount (in milliseconds) to wait before peer is re-dialed.
+	// When node and peer are dialing each other simultaneously connection may fail. In order, to break
+	// of constant dialing, peer is assigned some backoff period, and only dialed again once that backoff is up.
+	MinBackOffDuration = 100
+	// MaxBackOffDuration maximum amount (in milliseconds) to wait before peer is re-dialed.
+	MaxBackOffDuration = 5000
+
+	DefaultBadNodeReleaseDuration = time.Minute
+)
+
+type Status struct {
+	ctx       context.Context
+	store     *Store
+	ipTracker map[string]uint64
+	rand      *rand.Rand
+	config    *StatusConfig
+}
+
+type StatusConfig struct {
+	MaxInboundPeers        int
+	MaxOutboundPeers       int
+	MaxPeers               int
+	MaxBadResponses        int
+	BadNodeReleaseDuration time.Duration
+}
+
+func NewStatus(ctx context.Context, cfg *StatusConfig) *Status {
+	store := NewStore(ctx, &storeConfig{
+		MaxInboundPeers:  cfg.MaxInboundPeers,
+		MaxOutboundPeers: cfg.MaxOutboundPeers,
+		MaxPeers:         cfg.MaxPeers,
+		MaxBadResponses:  cfg.MaxBadResponses,
+	})
+
+	// fallback set
+	if cfg.BadNodeReleaseDuration == 0 {
+		cfg.BadNodeReleaseDuration = DefaultBadNodeReleaseDuration
+	}
+
+	return &Status{
+		ctx:       ctx,
+		store:     store,
+		ipTracker: make(map[string]uint64),
+		rand:      rand.New(rand.NewSource(rand.Int63())),
+		config:    cfg,
+	}
+}
+
+// MaxPeerLimit returns the max peer limit stored in the current peer store.
+func (p *Status) MaxPeerLimit() int {
+	return p.store.Config().MaxPeers
+}
+
+// MaxInboundPeerLimit returns the max inbound peer limit stored in the current peer store.
+func (p *Status) MaxInboundPeerLimit() int {
+	return p.store.Config().MaxInboundPeers
+}
+
+// MaxOutboundPeerLimit returns the max inbound peer limit stored in the current peer store.
+func (p *Status) MaxOutboundPeerLimit() int {
+	return p.store.Config().MaxOutboundPeers
+}
+
+// MaxBadResponses returns the max bad responses stored in the current peer store.
+func (p *Status) MaxBadResponses() int {
+	return p.store.Config().MaxBadResponses
+}
+
+// Add adds a peer.
+// If a peer already exists with this ID its address and direction are updated with the supplied data.
+func (p *Status) Add(record *enr.Record, pid peer.ID, address ma.Multiaddr, direction network.Direction) {
+	p.store.Lock()
+	defer p.store.Unlock()
+
+	if peerData, ok := p.store.PeerData(pid); ok {
+		// Peer already exists, just update its address info.
+		prevAddress := peerData.Address
+		peerData.Address = address
+		peerData.Direction = direction
+		if record != nil {
+			peerData.Enr = record
+		}
+		if !sameIP(prevAddress, address) {
+			p.addIpToTracker(pid)
+		}
+		return
+	}
+	peerData := &PeerData{
+		Address:   address,
+		Direction: direction,
+		// Peers start disconnected; state will be updated when the handshake process begins.
+		ConnState: PeerDisconnected,
+	}
+	if record != nil {
+		peerData.Enr = record
+	}
+	p.store.SetPeerData(pid, peerData)
+	p.addIpToTracker(pid)
+}
+
+// SetConnectionState sets the connection state of the given remote peer.
+func (p *Status) SetConnectionState(pid peer.ID, state PeerConnectionState) {
+	p.store.Lock()
+	defer p.store.Unlock()
+
+	peerData := p.store.PeerDataGetOrCreate(pid)
+	peerData.ConnState = state
+}
+
+// ConnectionState gets the connection state of the given remote peer.
+// This will error if the peer does not exist.
+func (p *Status) ConnectionState(pid peer.ID) (PeerConnectionState, error) {
+	p.store.RLock()
+	defer p.store.RUnlock()
+
+	if peerData, ok := p.store.PeerData(pid); ok {
+		return peerData.ConnState, nil
+	}
+	return PeerDisconnected, peerdata.ErrPeerUnknown
+}
+
+// InboundConnected returns the current batch of inbound peers that are connected.
+func (p *Status) InboundConnected() []peer.ID {
+	p.store.RLock()
+	defer p.store.RUnlock()
+	peers := make([]peer.ID, 0)
+	for pid, peerData := range p.store.Peers() {
+		if peerData.ConnState == PeerConnected && peerData.Direction == network.DirInbound {
+			peers = append(peers, pid)
+		}
+	}
+	return peers
+}
+
+// OutboundConnected returns the current batch of outbound peers that are connected.
+func (p *Status) OutboundConnected() []peer.ID {
+	p.store.RLock()
+	defer p.store.RUnlock()
+	peers := make([]peer.ID, 0)
+	for pid, peerData := range p.store.Peers() {
+		if peerData.ConnState == PeerConnected && peerData.Direction == network.DirOutbound {
+			peers = append(peers, pid)
+		}
+	}
+	return peers
+}
+
+// Active returns the peers that are connecting or connected.
+func (p *Status) Active() []peer.ID {
+	p.store.RLock()
+	defer p.store.RUnlock()
+	peers := make([]peer.ID, 0)
+	for pid, peerData := range p.store.Peers() {
+		if peerData.ConnState == PeerConnecting || peerData.ConnState == PeerConnected {
+			peers = append(peers, pid)
+		}
+	}
+	return peers
+}
+
+// RandomizeBackOff adds extra backoff period during which peer will not be dialed.
+func (p *Status) RandomizeBackOff(pid peer.ID) {
+	p.store.Lock()
+	defer p.store.Unlock()
+
+	peerData := p.store.PeerDataGetOrCreate(pid)
+
+	// No need to add backoff period, if the previous one hasn't expired yet.
+	if !time.Now().After(peerData.NextValidTime) {
+		return
+	}
+
+	duration := time.Duration(math.Max(MinBackOffDuration, float64(p.rand.Intn(MaxBackOffDuration)))) * time.Millisecond
+	peerData.NextValidTime = time.Now().Add(duration)
+}
+
+// IsReadyToDial checks where the given peer is ready to be
+// dialed again.
+func (p *Status) IsReadyToDial(pid peer.ID) bool {
+	p.store.RLock()
+	defer p.store.RUnlock()
+
+	if peerData, ok := p.store.PeerData(pid); ok {
+		timeIsZero := peerData.NextValidTime.IsZero()
+		isInvalidTime := peerData.NextValidTime.After(time.Now())
+		return timeIsZero || !isInvalidTime
+	}
+	// If no record exists, we don't restrict dials to the
+	// peer.
+	return true
+}
+
+// IsActive checks if a peers is active and returns the result appropriately.
+func (p *Status) IsActive(pid peer.ID) bool {
+	p.store.RLock()
+	defer p.store.RUnlock()
+
+	peerData, ok := p.store.PeerData(pid)
+	return ok && (peerData.ConnState == PeerConnected || peerData.ConnState == PeerConnecting)
+}
+
+// IncBadResponses increments the number of bad responses received from the given peer.
+func (p *Status) IncBadResponses(pid peer.ID) {
+	p.store.Lock()
+	defer p.store.Unlock()
+	peerData, ok := p.store.PeerData(pid)
+	if !ok {
+		p.store.SetPeerData(pid, &PeerData{
+			BadResponses: 1,
+		})
+		return
+	}
+	if time.Now().Before(peerData.NextBadNodeReleaseTime) {
+		return
+	}
+	peerData.BadResponses++
+	if peerData.BadResponses >= p.MaxBadResponses() {
+		// freeze for a while
+		peerData.NextBadNodeReleaseTime = time.Now().Add(p.config.BadNodeReleaseDuration)
+	}
+}
+
+// IsBad states if the peer is to be considered bad (by *any* of the registered scorers).
+// If the peer is unknown this will return `false`, which makes using this function easier than returning an error.
+func (p *Status) IsBad(pid peer.ID) bool {
+	p.store.RLock()
+	defer p.store.RUnlock()
+	return p.isBad(pid)
+}
+
+// isBad is the lock-free version of IsBad.
+func (p *Status) isBad(pid peer.ID) bool {
+	return p.isFromBadIP(pid) || p.isFromBadResponses(pid)
+}
+
+// this method assumes the store lock is acquired before
+// executing the method.
+func (p *Status) isFromBadIP(pid peer.ID) bool {
+	peerData, ok := p.store.PeerData(pid)
+	if !ok {
+		return false
+	}
+	if peerData.Address == nil {
+		return false
+	}
+	_, err := manet.ToIP(peerData.Address)
+	if err != nil {
+		return true
+	}
+	return false
+}
+
+// isFromBadResponses
+func (p *Status) isFromBadResponses(pid peer.ID) bool {
+	peerData, ok := p.store.PeerData(pid)
+	if !ok {
+		return false
+	}
+
+	// release bad node
+	if !peerData.NextBadNodeReleaseTime.IsZero() && time.Now().After(peerData.NextBadNodeReleaseTime) {
+		peerData.BadResponses = 0
+		peerData.NextBadNodeReleaseTime = time.Time{}
+	}
+	return peerData.BadResponses >= p.MaxBadResponses()
+}
+
+func (p *Status) addIpToTracker(pid peer.ID) {
+	data, ok := p.store.PeerData(pid)
+	if !ok {
+		return
+	}
+	if data.Address == nil {
+		return
+	}
+	ip, err := manet.ToIP(data.Address)
+	if err != nil {
+		// Should never happen, it is
+		// assumed every IP coming in
+		// is a valid ip.
+		return
+	}
+	// Ignore loopback addresses.
+	if ip.IsLoopback() {
+		return
+	}
+	stringIP := ip.String()
+	p.ipTracker[stringIP] += 1
+}
+
+func (p *Status) tallyIPTracker() {
+	tracker := map[string]uint64{}
+	// Iterate through all peers.
+	for _, peerData := range p.store.Peers() {
+		if peerData.Address == nil {
+			continue
+		}
+		ip, err := manet.ToIP(peerData.Address)
+		if err != nil {
+			// Should never happen, it is
+			// assumed every IP coming in
+			// is a valid ip.
+			continue
+		}
+		stringIP := ip.String()
+		tracker[stringIP] += 1
+	}
+	p.ipTracker = tracker
+}
+
+func sameIP(firstAddr, secondAddr ma.Multiaddr) bool {
+	// Exit early if we do get nil multiaddresses
+	if firstAddr == nil || secondAddr == nil {
+		return false
+	}
+	firstIP, err := manet.ToIP(firstAddr)
+	if err != nil {
+		return false
+	}
+	secondIP, err := manet.ToIP(secondAddr)
+	if err != nil {
+		return false
+	}
+	return firstIP.Equal(secondIP)
+}

p2p/peers/peerstore.go

+package peers
+
+import (
+	"context"
+	"sync"
+	"time"
+
+	"github.com/ethereum/go-ethereum/p2p/enr"
+	"github.com/libp2p/go-libp2p/core/network"
+	"github.com/libp2p/go-libp2p/core/peer"
+	ma "github.com/multiformats/go-multiaddr"
+)
+
+type PeerConnectionState int
+
+const (
+	// PeerDisconnected means there is no connection to the peer.
+	PeerDisconnected PeerConnectionState = iota
+	// PeerDisconnecting means there is an on-going attempt to disconnect from the peer.
+	PeerDisconnecting
+	// PeerConnected means the peer has an active connection.
+	PeerConnected
+	// PeerConnecting means there is an on-going attempt to connect to the peer.
+	PeerConnecting
+)
+
+type PeerData struct {
+	Address                ma.Multiaddr
+	Direction              network.Direction
+	ConnState              PeerConnectionState
+	Enr                    *enr.Record
+	NextValidTime          time.Time
+	BadResponses           int
+	NextBadNodeReleaseTime time.Time
+}
+
+type Store struct {
+	ctx    context.Context
+	peers  map[peer.ID]*PeerData
+	config *storeConfig
+	sync.RWMutex
+}
+
+type storeConfig struct {
+	MaxInboundPeers  int
+	MaxOutboundPeers int
+	MaxPeers         int
+	MaxBadResponses  int
+}
+
+func NewStore(ctx context.Context, cfg *storeConfig) *Store {
+	return &Store{
+		ctx:    ctx,
+		peers:  make(map[peer.ID]*PeerData),
+		config: cfg,
+	}
+}
+
+// PeerData returns data associated with a given peer, if any.
+// Important: it is assumed that store mutex is locked when calling this method.
+func (s *Store) PeerData(pid peer.ID) (*PeerData, bool) {
+	peerData, ok := s.peers[pid]
+	return peerData, ok
+}
+
+// PeerDataGetOrCreate returns data associated with a given peer.
+// If no data has been associated yet, newly created and associated data object is returned.
+// Important: it is assumed that store mutex is locked when calling this method.
+func (s *Store) PeerDataGetOrCreate(pid peer.ID) *PeerData {
+	if peerData, ok := s.peers[pid]; ok {
+		return peerData
+	}
+	s.peers[pid] = &PeerData{}
+	return s.peers[pid]
+}
+
+// SetPeerData updates data associated with a given peer.
+// Important: it is assumed that store mutex is locked when calling this method.
+func (s *Store) SetPeerData(pid peer.ID, data *PeerData) {
+	s.peers[pid] = data
+}
+
+// DeletePeerData removes data associated with a given peer.
+// Important: it is assumed that store mutex is locked when calling this method.
+func (s *Store) DeletePeerData(pid peer.ID) {
+	delete(s.peers, pid)
+}
+
+// Peers returns map of peer data objects.
+// Important: it is assumed that store mutex is locked when calling this method.
+func (s *Store) Peers() map[peer.ID]*PeerData {
+	return s.peers
+}
+
+// Config return store config
+func (s *Store) Config() *storeConfig {
+	return s.config
+}

p2p/pubsub.go

+package p2p
+
+import (
+	"context"
+	"time"
+
+	pubsub "github.com/libp2p/go-libp2p-pubsub"
+	pubsubpb "github.com/libp2p/go-libp2p-pubsub/pb"
+	"github.com/pkg/errors"
+)
+
+const (
+	// overlay parameters
+	gossipSubD   = 8  // topic stable mesh target count
+	gossipSubDlo = 6  // topic stable mesh low watermark
+	gossipSubDhi = 12 // topic stable mesh high watermark
+
+	// gossip parameters
+	gossipSubMcacheLen    = 6  // number of windows to retain full messages in cache for `IWANT` responses
+	gossipSubMcacheGossip = 3  // number of windows to gossip about
+	gossipSubSeenTTL      = 60 // number of heartbeat intervals to retain message IDs
+
+	// heartbeat interval
+	gossipSubHeartbeatInterval = 700 * time.Millisecond // frequency of heartbeat, milliseconds
+)
+
+// JoinTopic will join PubSub topic, if not already joined.
+func (s *Service) JoinTopic(topic string, opts ...pubsub.TopicOpt) (*pubsub.Topic, error) {
+	s.joinedTopicsLock.Lock()
+	defer s.joinedTopicsLock.Unlock()
+	if _, ok := s.joinedTopics[topic]; !ok {
+		topicHandle, err := s.pubsub.Join(topic, opts...)
+		if err != nil {
+			return nil, err
+		}
+		s.joinedTopics[topic] = topicHandle
+	}
+
+	return s.joinedTopics[topic], nil
+}
+
+// LeaveTopic closes topic and removes corresponding handler from list of joined topics.
+// This method will return error if there are outstanding event handlers or subscriptions.
+func (s *Service) LeaveTopic(topic string) error {
+	s.joinedTopicsLock.Lock()
+	defer s.joinedTopicsLock.Unlock()
+
+	if t, ok := s.joinedTopics[topic]; ok {
+		if err := t.Close(); err != nil {
+			return err
+		}
+		delete(s.joinedTopics, topic)
+	}
+	return nil
+}
+
+// PublishToTopic joins (if necessary) and publishes a message to a PubSub topic.
+func (s *Service) PublishToTopic(ctx context.Context, topic string, data []byte, opts ...pubsub.PubOpt) error {
+	topicHandle, err := s.JoinTopic(topic)
+	if err != nil {
+		return err
+	}
+
+	if s.cfg.SingleNode {
+		return topicHandle.Publish(ctx, data, opts...)
+	}
+
+	// Wait for at least 1 peer to be available to receive the published message.
+	for {
+		if len(topicHandle.ListPeers()) > 0 {
+			return topicHandle.Publish(ctx, data, opts...)
+		}
+		select {
+		case <-ctx.Done():
+			return errors.Wrapf(ctx.Err(), "unable to find requisite number of peers for topic %s, 0 peers found to publish to", topic)
+		default:
+			time.Sleep(100 * time.Millisecond)
+		}
+	}
+}
+
+// SubscribeToTopic joins (if necessary) and subscribes to PubSub topic.
+func (s *Service) SubscribeToTopic(topic string, opts ...pubsub.SubOpt) (*pubsub.Subscription, error) {
+	topicHandle, err := s.JoinTopic(topic)
+	if err != nil {
+		return nil, err
+	}
+	return topicHandle.Subscribe(opts...)
+}
+
+// Creates a list of pubsub options to configure out router with.
+func (s *Service) pubsubOptions() []pubsub.Option {
+	psOpts := []pubsub.Option{
+		pubsub.WithMessageSignaturePolicy(pubsub.StrictNoSign),
+		pubsub.WithNoAuthor(),
+		pubsub.WithMessageIdFn(func(pmsg *pubsubpb.Message) string {
+			return msgID(pmsg)
+		}),
+		pubsub.WithPeerOutboundQueueSize(pubsubQueueSize),
+		pubsub.WithMaxMessageSize(GossipMaxSize),
+		pubsub.WithValidateQueueSize(pubsubQueueSize),
+		pubsub.WithGossipSubParams(pubsubGossipParam()),
+	}
+	return psOpts
+}
+
+// creates a custom gossipsub parameter set.
+func pubsubGossipParam() pubsub.GossipSubParams {
+	gParams := pubsub.DefaultGossipSubParams()
+	gParams.Dlo = gossipSubDlo
+	gParams.D = gossipSubD
+	gParams.HeartbeatInterval = gossipSubHeartbeatInterval
+	gParams.HistoryLength = gossipSubMcacheLen
+	gParams.HistoryGossip = gossipSubMcacheGossip
+	return gParams
+}
+
+// We have to unfortunately set this globally in order
+// to configure our message id time-cache rather than instantiating
+// it with a router instance.
+func setPubSubParameters() {
+	pubsub.TimeCacheDuration = gossipSubSeenTTL * gossipSubHeartbeatInterval
+}

p2p/sender.go

+package p2p
+
+import (
+	"context"
+
+	"github.com/libp2p/go-libp2p/core/network"
+	"github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/core/protocol"
+	"github.com/sirupsen/logrus"
+)
+
+// Send a message to a specific peer. The returned stream may be used for reading, but has been
+// closed for writing.
+//
+// When done, the caller must Close or Reset on the stream.
+func (s *Service) Send(ctx context.Context, message []byte, baseTopic string, pid peer.ID) (network.Stream, error) {
+	topic := baseTopic
+	log.WithFields(logrus.Fields{
+		"topic":          topic,
+		"request length": len(message),
+	}).Tracef("Sending RPC request to peer %s", pid.String())
+
+	// Apply max dial timeout when opening a new stream.
+	ctx, cancel := context.WithTimeout(ctx, maxDialTimeout)
+	defer cancel()
+	stream, err := s.host.NewStream(ctx, pid, protocol.ID(topic))
+	if err != nil {
+		return nil, err
+	}
+	_, err = stream.Write(message)
+	if err != nil {
+		return stream, err
+	}
+
+	// Close stream for writing.
+	if err := stream.CloseWrite(); err != nil {
+		_err := stream.Reset()
+		_ = _err
+		return nil, err
+	}
+
+	return stream, nil
+}

p2p/service.go

+// Package p2p including peer discovery using discv5, gossip-sub
+// using libp2p, and handing peer lifecycles + handshakes.
+package p2p
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"fmt"
+	"net"
+	"strings"
+	"sync"
+	"time"
+
+	"witness/p2p/peers"
+
+	"github.com/libp2p/go-libp2p"
+	"github.com/multiformats/go-multiaddr"
+	"github.com/prysmaticlabs/prysm/v3/async/event"
+
+	"github.com/ethereum/go-ethereum/p2p/enode"
+	"github.com/ethereum/go-ethereum/p2p/enr"
+	pubsub "github.com/libp2p/go-libp2p-pubsub"
+	"github.com/libp2p/go-libp2p/core/host"
+	"github.com/libp2p/go-libp2p/core/network"
+	"github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/core/protocol"
+	"github.com/pkg/errors"
+	prysmnetwork "github.com/prysmaticlabs/prysm/v3/network"
+)
+
+// In the event that we are at our peer limit, we
+// stop looking for new peers and instead poll
+// for the current peer limit status for the time period
+// defined below.
+var pollingPeriod = time.Second * 12
+
+// maxDialTimeout is the timeout for a single peer dial.
+var maxDialTimeout = time.Second * 10
+
+// pubsubQueueSize is the size that we assign to our validation queue and outbound message queue for
+// gossipsub.
+const pubsubQueueSize = 80
+
+const GossipMaxSize = 100 * 1 << 20 // 10MB
+
+const MaxChunkSize = 10 * 1 << 20 // 1MB
+
+type subSession struct {
+	sub       event.Subscription
+	listeners int
+}
+
+// Service for managing peer to peer (p2p) networking.
+type Service struct {
+	started          bool
+	cancel           context.CancelFunc
+	cfg              *Config
+	privKey          *ecdsa.PrivateKey
+	pubsub           *pubsub.PubSub
+	joinedTopics     map[string]*pubsub.Topic
+	joinedTopicsLock sync.Mutex
+	dv5Listener      Listener
+	startupErr       error
+	ctx              context.Context
+	host             host.Host
+	peers            *peers.Status
+	subManage        map[string]*subSession
+	subManageLock    sync.Mutex
+}
+
+// NewService initializes a new p2p service compatible with shared.Service interface. No
+// connections are made until the Start function is called during the service registry startup.
+func NewService(ctx context.Context, cfg *Config) (*Service, error) {
+	var err error
+	ctx, cancel := context.WithCancel(ctx)
+	_ = cancel // govet fix for lost cancel. Cancel is handled in service.Stop().
+	s := &Service{
+		ctx:          ctx,
+		cancel:       cancel,
+		cfg:          cfg,
+		subManage:    make(map[string]*subSession),
+		joinedTopics: make(map[string]*pubsub.Topic),
+	}
+
+	dv5Nodes, _ := parseBootStrapAddrs(s.cfg.BootstrapNodeAddr)
+	cfg.Discv5BootStrapAddr = dv5Nodes
+
+	s.privKey, err = privKey(s.cfg)
+	if err != nil {
+		log.WithError(err).Error("Failed to generate p2p private key")
+		return nil, err
+	}
+	// get external ip address
+	ipAddr := prysmnetwork.IPAddr()
+	if cfg.HostAddress != "" {
+		ipAddr = net.ParseIP("0.0.0.0")
+		if ipAddr.To4() == nil && ipAddr.To16() == nil {
+			log.Errorf("Invalid host address given: %s", ipAddr.String())
+			return nil, fmt.Errorf("invalid host address given: %s", ipAddr.String())
+		}
+	}
+
+	opts := s.buildOptions(ipAddr, s.privKey)
+	h, err := libp2p.New(opts...)
+	if err != nil {
+		log.WithError(err).Error("Failed to create p2p host")
+		return nil, err
+	}
+
+	s.host = h
+	// Gossipsub registration is done before we add in any new peers
+	// due to libp2p's gossipsub implementation not taking into
+	// account previously added peers when creating the gossipsub
+	// object.
+	psOpts := s.pubsubOptions()
+	// Set the pubsub global parameters that we require.
+	setPubSubParameters()
+	// Reinitialize them in the event we are running a custom config.
+	gs, err := pubsub.NewGossipSub(s.ctx, s.host, psOpts...)
+	if err != nil {
+		log.WithError(err).Error("Failed to start pubsub")
+		return nil, err
+	}
+
+	s.pubsub = gs
+	s.peers = peers.NewStatus(s.ctx, &peers.StatusConfig{
+		MaxInboundPeers:  int(cfg.MaxInboundPeers),
+		MaxOutboundPeers: int(cfg.MaxOutboundPeers),
+		MaxPeers:         int(cfg.MaxPeers),
+		MaxBadResponses:  3,
+	})
+
+	return s, nil
+}
+
+// Start the p2p service.
+func (s *Service) Start() {
+	if s.started {
+		log.Error("Attempted to start p2p service when it was already started")
+		return
+	}
+
+	if s.cfg.UseDiscovery {
+		ipAddr := prysmnetwork.IPAddr()
+		listener, err := s.startDiscoveryV5(
+			ipAddr,
+			s.privKey,
+		)
+		if err != nil {
+			log.WithError(err).Fatal("Failed to start discovery")
+			s.startupErr = err
+			return
+		}
+		log.Debug("debug: connecting to bootnode ", len(s.cfg.Discv5BootStrapAddr))
+		err = s.connectToBootnodes()
+		if err != nil {
+			log.WithError(err).Error("Could not add bootnode to the exclusion list")
+			s.startupErr = err
+			return
+		}
+		s.dv5Listener = listener
+		go s.listenForNewNodes()
+	}
+
+	s.started = true
+
+	if len(s.cfg.StaticPeers) > 0 {
+		addrs, err := PeersFromStringAddrs(s.cfg.StaticPeers)
+		if err != nil {
+			log.WithError(err).Error("Could not connect to static peer")
+		}
+		s.connectWithAllPeers(addrs, false)
+	}
+
+	multiAddrs := s.host.Network().ListenAddresses()
+	logIPAddr(s.host.ID(), multiAddrs...)
+
+	p2pHostAddress := s.cfg.HostAddress
+	p2pTCPPort := s.cfg.TCPPort
+
+	if p2pHostAddress != "" {
+		logExternalIPAddr(s.host.ID(), p2pHostAddress, p2pTCPPort)
+		verifyConnectivity(p2pHostAddress, p2pTCPPort, "tcp")
+	}
+
+}
+
+// Stop the p2p service and terminate all peer connections.
+func (s *Service) Stop() error {
+	defer s.cancel()
+	s.started = false
+	if s.dv5Listener != nil {
+		s.dv5Listener.Close()
+	}
+	return nil
+}
+
+// Status of the p2p service. Will return an error if the service is considered unhealthy to
+// indicate that this node should not serve traffic until the issue has been resolved.
+func (s *Service) Status() error {
+	if !s.started {
+		return errors.New("not running")
+	}
+	if s.startupErr != nil {
+		return s.startupErr
+	}
+	return nil
+}
+
+// Started returns true if the p2p service has successfully started.
+func (s *Service) Started() bool {
+	return s.started
+}
+
+// PubSub returns the p2p pubsub framework.
+func (s *Service) PubSub() *pubsub.PubSub {
+	return s.pubsub
+}
+
+// Host returns the currently running libp2p
+// host of the service.
+func (s *Service) Host() host.Host {
+	return s.host
+}
+
+// SetStreamHandler sets the protocol handler on the p2p host multiplexer.
+// This method is a pass through to libp2pcore.Host.SetStreamHandler.
+func (s *Service) SetStreamHandler(topic string, handler network.StreamHandler) {
+	s.host.SetStreamHandler(protocol.ID(topic), handler)
+}
+
+// PeerID returns the Peer ID of the local peer.
+func (s *Service) PeerID() peer.ID {
+	return s.host.ID()
+}
+
+// Disconnect from a peer.
+func (s *Service) Disconnect(pid peer.ID) error {
+	return s.host.Network().ClosePeer(pid)
+}
+
+// Connect to a specific peer.
+func (s *Service) Connect(pi peer.AddrInfo) error {
+	return s.host.Connect(s.ctx, pi)
+}
+
+func (s *Service) connectWithAllPeers(multiAddrs []multiaddr.Multiaddr, isBootnode bool) {
+	addrInfos, err := peer.AddrInfosFromP2pAddrs(multiAddrs...)
+	if err != nil {
+		log.WithError(err).Error("Could not convert to peer address info's from multiaddresses")
+		return
+	}
+	for _, info := range addrInfos {
+		for _, addr := range info.Addrs {
+			ipAddr := strings.Split(addr.String(), "/")[2]
+			if s.cfg.IgnoreLocalIP && s.isLocalIP(ipAddr) {
+				continue
+			}
+		}
+
+		// make each dial non-blocking
+		go func(info peer.AddrInfo) {
+			log.Debugf("connecting to peer %s", info.String())
+			if err := s.connectWithPeer(s.ctx, info); err != nil {
+				log.WithError(err).Errorf("Could not connect with peer %s, err %s", info.String(), err.Error())
+			} else if isBootnode {
+				// save to file
+			}
+		}(info)
+	}
+}
+
+func (s *Service) connectWithPeer(ctx context.Context, info peer.AddrInfo) error {
+	if info.ID == s.host.ID() {
+		return nil
+	}
+	if s.peers.IsBad(info.ID) {
+		return errors.New("refused to connect to bad peer")
+	}
+
+	for _, addr := range info.Addrs {
+		ipAddr := strings.Split(addr.String(), "/")[2]
+		if s.cfg.IgnoreLocalIP && s.isLocalIP(ipAddr) {
+			return nil
+		}
+	}
+
+	ctx, cancel := context.WithTimeout(ctx, maxDialTimeout)
+	defer cancel()
+	if err := s.host.Connect(ctx, info); err != nil {
+		s.peers.IncBadResponses(info.ID)
+		return err
+	}
+	log.WithField("peer", info.ID).Debug("Connected to new peer")
+	return nil
+}
+
+func (s *Service) connectToBootnodes() error {
+	nodes := make([]*enode.Node, 0, len(s.cfg.Discv5BootStrapAddr))
+	for _, addr := range s.cfg.Discv5BootStrapAddr {
+		bootNode, err := enode.Parse(enode.ValidSchemes, addr)
+		if err != nil {
+			return err
+		}
+		log.Debug("Adding bootnode to the list", bootNode.String())
+		// do not dial bootnodes with their tcp ports not set
+		if err := bootNode.Record().Load(enr.WithEntry("tcp", new(enr.TCP))); err != nil {
+			if !enr.IsNotFound(err) {
+				log.WithError(err).Error("Could not retrieve tcp port")
+			}
+			continue
+		}
+
+		if s.cfg.IgnoreLocalIP && s.isLocalIP(bootNode.IP().String()) {
+			continue
+		}
+
+		nodes = append(nodes, bootNode)
+	}
+	multiAddresses := convertToMultiAddr(nodes)
+	s.connectWithAllPeers(multiAddresses, true)
+	return nil
+}
+
+func (s *Service) isLocalIP(ipAddr string) bool {
+	return ipAddr == s.cfg.LocalIP || ipAddr == s.cfg.HostAddress || ipAddr == "127.0.0.1"
+}

p2p/utils.go

+package p2p
+
+import (
+	"crypto/ecdsa"
+	"crypto/rand"
+	"encoding/hex"
+	"fmt"
+	"net"
+	"os"
+	"time"
+
+	"github.com/libp2p/go-libp2p/core/crypto"
+	"github.com/pkg/errors"
+	ecdsaprysm "github.com/prysmaticlabs/prysm/v3/crypto/ecdsa"
+	"github.com/sirupsen/logrus"
+)
+
+const dialTimeout = 1 * time.Second
+
+const enrRecordFile = "discovery-enr"
+
+const peerIDFile = "peer-id"
+
+// Determines a private key for p2p networking from the p2p service's
+// configuration struct. If no key is found, it generates a new one.
+func privKey(cfg *Config) (*ecdsa.PrivateKey, error) {
+	privateKeyPath := cfg.PrivateKeyPath
+	_, err := os.Stat(privateKeyPath)
+	privateKeyExist := !os.IsNotExist(err)
+	if err != nil && privateKeyExist {
+		return nil, err
+	}
+	if privateKeyPath == "" || !privateKeyExist {
+		priv, _, err := crypto.GenerateSecp256k1Key(rand.Reader)
+		if err != nil {
+			return nil, err
+		}
+		return ecdsaprysm.ConvertFromInterfacePrivKey(priv)
+	}
+	return privKeyFromFile(privateKeyPath)
+}
+
+// Retrieves a p2p networking private key from a file path.
+func privKeyFromFile(path string) (*ecdsa.PrivateKey, error) {
+	src, err := os.ReadFile(path) // #nosec G304
+	if err != nil {
+		log.WithError(err).Error("Error reading private key from file")
+		return nil, err
+	}
+	dst := make([]byte, hex.DecodedLen(len(src)))
+	_, err = hex.Decode(dst, src)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to decode hex string")
+	}
+	unmarshalledKey, err := crypto.UnmarshalSecp256k1PrivateKey(dst)
+	if err != nil {
+		return nil, err
+	}
+	return ecdsaprysm.ConvertFromInterfacePrivKey(unmarshalledKey)
+}
+
+// Attempt to dial an address to verify its connectivity
+func verifyConnectivity(addr string, port uint, protocol string) {
+	if addr != "" {
+		a := net.JoinHostPort(addr, fmt.Sprintf("%d", port))
+		fields := logrus.Fields{
+			"protocol": protocol,
+			"address":  a,
+		}
+		conn, err := net.DialTimeout(protocol, a, dialTimeout)
+		if err != nil {
+			log.WithError(err).WithFields(fields).Warn("IP address is not accessible")
+			return
+		}
+		if err := conn.Close(); err != nil {
+			log.WithError(err).Debug("Could not close connection")
+		}
+	}
+}
+
+func enrRecordToFile(enr string) {
+	// create or overwrite
+	f, err := os.Create(enrRecordFile)
+	if err != nil {
+		log.WithError(err).Warn("Error creating enrRecordFile")
+		return
+	}
+	defer f.Close()
+	_, err = f.WriteString(enr)
+	if err != nil {
+		log.WithError(err).Warn("Error writing enrRecordFile")
+		return
+	}
+}
+
+func myPeerIDToFile(peerID string) {
+	f, err := os.Create(peerIDFile)
+	if err != nil {
+		log.WithError(err).Warn("Error creating peerIDFile")
+		return
+	}
+	defer f.Close()
+	_, err = f.WriteString(peerID)
+	if err != nil {
+		log.WithError(err).Warn("Error writing peerIDFile")
+		return
+	}
+}

readme.md

 
-# aigic witness
\ No newline at end of file
+# witness
+
+
+
+
+merkle sum tree:
+
+    mstroot:2020-01-01 -> root
+
+    mstsum:2020-01-01 -> sum
+
+    mstk:2020-01-01 -> key1(bytes32)key2(bytes32)
+
+    mstv:2020-01-01 -> val1:val2
+
+
+
+merkle tree:
+
+    mtroot:2020-01-01 -> root
+
+    mtk:2020-01-01 -> key1(bytes32)key2(bytes32)
+
+state:
+
+    lastday -> 2023-01-01
+    
+    sroot:2020-01-01 -> root

tree/helper.go

+package tree
+
+import (
+	"bytes"
+)
+
+// Byte helpers.
+
+// Sort2Bytes by contents.
+func Sort2Bytes(i []byte, j []byte) ([]byte, []byte) {
+	if lessThanBytes(i, j) {
+		return i, j
+	} else {
+		return j, i
+	}
+}
+
+func lessThanBytes(i []byte, j []byte) bool {
+	switch bytes.Compare(i, j) {
+	case -1, 0:
+		return true
+	case 1:
+		return false
+	default:
+		return false
+	}
+}
+
+func safeCopyBytes(cp []byte) []byte {
+	if cp != nil {
+		copied := make([]byte, len(cp))
+		copy(copied, cp)
+		return copied
+	}
+	return nil
+}
+
+func copy2dBytes(ary [][]byte) [][]byte {
+	if ary != nil {
+		copied := make([][]byte, len(ary))
+		for i, a := range ary {
+			copied[i] = safeCopyBytes(a)
+		}
+		return copied
+	}
+	return nil
+}
+
+func padTo(b []byte, size int) []byte {
+	if len(b) > size {
+		return b
+	}
+	return append(b, make([]byte, size-len(b))...)
+}
+
+// Math helpers.
+
+// Find the next power of 2 unless n is already a power of 2.
+func nextPowerOf2(n uint64) uint64 {
+	var count uint64 = 0
+
+	if isPowerOfTwo(n) {
+		return n
+	}
+
+	for n != 0 {
+		n >>= 1
+		count += 1
+	}
+
+	return 1 << count
+}
+
+func isPowerOfTwo(n uint64) bool {
+	return (n & (n - 1)) == 0
+}

tree/merkle_proof.go

+package tree
+
+import (
+	"bytes"
+	"encoding/hex"
+
+	"github.com/ethereum/go-ethereum/common"
+)
+
+type Proofs []common.Hash
+
+func (x Proofs) Len() int           { return len(x) }
+func (x Proofs) Less(i, j int) bool { return bytes.Compare(x[i][:], x[j][:]) == -1 }
+func (x Proofs) Swap(i, j int)      { x[i], x[j] = x[j], x[i] }
+
+func (x Proofs) Dedup() Proofs {
+	r := make(Proofs, 0, len(x))
+	for idx, el := range x {
+		if idx == 0 || !bytes.Equal(x[idx-1][:], el[:]) {
+			r = append(r, el)
+		}
+	}
+	return r
+}
+
+func (x Proofs) ToHexArray() []string {
+	r := make([]string, 0, len(x))
+	for _, el := range x {
+		r = append(r, hex.EncodeToString(el[:]))
+	}
+	return r
+}

tree/merkle_sum_tree.go

+package tree
+
+import (
+	"bytes"
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/crypto"
+)
+
+var (
+	LeafPrefix = []byte{0x00}
+	NodePrefix = []byte{0x01}
+)
+
+type MerkleSumTree struct {
+	sideNodes [][32]byte
+	nodeSums  []*big.Int
+}
+
+func leafDigest(data [32]byte, val *big.Int) (digest [32]byte) {
+	valBytes := make([]byte, 32)
+	copy(valBytes[32-len(val.Bytes()):], val.Bytes())
+	buf := bytes.NewBuffer(LeafPrefix)
+	buf.Write(valBytes)
+	buf.Write(data[:])
+	copy(digest[:], crypto.Keccak256Hash(buf.Bytes()).Bytes())
+	return
+}
+
+func nodeDigest(leftDigest, rightDigest [32]byte, leftVal, rightVal *big.Int) (digest [32]byte) {
+	leftValBytes := make([]byte, 32)
+	rightValBytes := make([]byte, 32)
+
+	copy(leftValBytes[32-len(leftVal.Bytes()):], leftVal.Bytes())
+	copy(rightValBytes[32-len(rightVal.Bytes()):], rightVal.Bytes())
+
+	buf := bytes.NewBuffer(NodePrefix)
+	buf.Write(leftValBytes)
+	buf.Write(leftDigest[:])
+	buf.Write(rightValBytes)
+	buf.Write(rightDigest[:])
+	copy(digest[:], crypto.Keccak256Hash(buf.Bytes()).Bytes())
+	return
+}
+
+func ComputeMST(dataList [][32]byte, values []*big.Int) (nodes [][32]byte, sums []*big.Int) {
+	nodeDigests := make([][32]byte, len(dataList))
+	nodeSums := make([]*big.Int, len(dataList))
+
+	for i := 0; i < len(dataList); i++ {
+		nodeDigests[i] = leafDigest(dataList[i], values[i])
+		nodeSums[i] = values[i]
+	}
+
+	odd := len(dataList) & 1
+	size := (len(dataList) + 1) >> 1
+
+	pNodeDigests := make([][32]byte, len(dataList))
+	pNodeSums := make([]*big.Int, len(dataList))
+
+	copy(pNodeDigests, nodeDigests)
+	copy(pNodeSums, nodeSums)
+
+	for {
+		i := 0
+		for i < size-odd {
+			j := i << 1
+			nodeDigests[i] = nodeDigest(pNodeDigests[j], pNodeDigests[j+1], pNodeSums[j], pNodeSums[j+1])
+			nodeSums[i] = new(big.Int).Add(pNodeSums[j], pNodeSums[j+1])
+			i++
+		}
+
+		if odd == 1 {
+			nodeDigests[i] = pNodeDigests[i<<1]
+			nodeSums[i] = pNodeSums[i<<1]
+		}
+
+		if size == 1 {
+			break
+		}
+
+		odd = size & 1
+		size = (size + 1) >> 1
+		copy(pNodeDigests, nodeDigests)
+		copy(pNodeSums, nodeSums)
+	}
+	return nodeDigests, nodeSums
+}

tree/merkle_sum_tree_test.go

+package tree
+
+import (
+	"crypto/sha256"
+	"fmt"
+	"math/big"
+	"testing"
+)
+
+func Test(t *testing.T) {
+	dataList := [][]byte{[]byte{0x01, 0x01}, []byte{0x02, 0x02}, {0x03, 0x03}, {0x04, 0x04}}
+
+	digestList := make([][32]byte, len(dataList))
+
+	for i := 0; i < len(dataList); i++ {
+		digestList[i] = sha256.Sum256(dataList[i])
+	}
+
+	fmt.Printf("%x\n", digestList)
+
+	valList := []*big.Int{big.NewInt(1), big.NewInt(2), big.NewInt(3), big.NewInt(4)}
+
+	roots, sums := ComputeMST(digestList, valList)
+	fmt.Printf("%x\n", roots[0])
+	fmt.Println(sums[0].String())
+}

tree/merkle_tree.go

+package tree
+
+import (
+	"bytes"
+	"errors"
+	"math"
+	"sort"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/crypto"
+)
+
+func combinedHash(first, second common.Hash) (hash common.Hash) {
+	var buffer [64]byte
+	if bytes.Compare(first[:], second[:]) <= 0 {
+		copy(buffer[:32], first[:])
+		copy(buffer[32:], second[:])
+		copy(hash[:], crypto.Keccak256(buffer[:]))
+	} else {
+		copy(buffer[:32], second[:])
+		copy(buffer[32:], first[:])
+		copy(hash[:], crypto.Keccak256(buffer[:]))
+	}
+	return hash
+}
+
+type MerkleTree struct {
+	layers                     [][]common.Hash
+	proofs                     Proofs
+	bufferElementPositionIndex map[common.Hash]int
+}
+
+func NewMerkleTree(proofs Proofs) (*MerkleTree, error) {
+	sort.Sort(proofs)
+	proofs = proofs.Dedup()
+
+	bufferElementPositionIndex := make(map[common.Hash]int)
+	for idx, el := range proofs {
+		bufferElementPositionIndex[el] = idx
+	}
+
+	var err error
+	tree := MerkleTree{
+		proofs:                     proofs,
+		bufferElementPositionIndex: bufferElementPositionIndex,
+	}
+	tree.layers, err = tree.GetLayers(proofs)
+	if err != nil {
+		return nil, err
+	}
+
+	return &tree, nil
+}
+
+func (m *MerkleTree) GetRoot() common.Hash {
+	return m.layers[len(m.layers)-1][0]
+}
+
+func (m *MerkleTree) GetProof(el common.Hash) ([]common.Hash, error) {
+	idx, ok := m.bufferElementPositionIndex[el]
+	if !ok {
+		return nil, errors.New("element does not exist in Merkle tree")
+	}
+
+	proof := make(Proofs, 0)
+	for _, layer := range m.layers {
+		pairElement, ok := m.getPairElement(idx, layer)
+		if ok {
+			proof = append(proof, pairElement)
+		}
+		idx = int(math.Floor(float64(idx) / 2))
+	}
+
+	return proof, nil
+}
+
+func (m *MerkleTree) GetLayers(proofs Proofs) ([][]common.Hash, error) {
+	if len(proofs) == 0 {
+		return nil, errors.New("empty tree")
+	}
+
+	layers := make([][]common.Hash, 0)
+	layers = append(layers, proofs)
+
+	for len(layers[len(layers)-1]) > 1 {
+		layers = append(layers, m.GetNextLayer(layers[len(layers)-1]))
+	}
+	return layers, nil
+}
+
+func (m *MerkleTree) GetNextLayer(proofs Proofs) Proofs {
+	layer := make(Proofs, 0)
+	for idx, el := range proofs {
+		if idx%2 == 0 {
+			if idx+1 >= len(proofs) {
+				layer = append(layer, el)
+			} else {
+				layer = append(layer, combinedHash(el, proofs[idx+1]))
+			}
+		}
+	}
+	return layer
+}
+
+func (m *MerkleTree) getPairElement(idx int, layer Proofs) (common.Hash, bool) {
+	pairIdx := idx - 1
+	if idx%2 == 0 {
+		pairIdx = idx + 1
+	}
+
+	if pairIdx >= len(layer) {
+		return common.Hash{}, false
+	}
+
+	return layer[pairIdx], true
+}

util/sort.go

+package util
+
+import (
+	"bytes"
+
+	"github.com/ethereum/go-ethereum/common"
+)
+
+type AddressSlice []common.Address
+
+func (s AddressSlice) Len() int {
+	return len(s)
+}
+
+func (s AddressSlice) Less(i, j int) bool {
+	return bytes.Compare(s[i].Bytes(), s[j].Bytes()) < 0
+}
+
+func (s AddressSlice) Swap(i, j int) {
+	s[i], s[j] = s[j], s[i]
+}

version/version.go

 package version
 
+import (
+	"github.com/prometheus/client_golang/prometheus"
+)
+
 var (
 	GitHash, GitBranch, BuildTime, GOVersion, Version string
 )
+
+var mistGauge = prometheus.NewGaugeVec(prometheus.GaugeOpts{
+	Name: "witness_version_gauge",
+}, []string{"gitHash", "gitBranch", "buildTime", "goVersion", "version"})
+
+func init() {
+	prometheus.MustRegister(mistGauge)
+	mistGauge.WithLabelValues(GitHash, GitBranch, BuildTime, GOVersion, Version).Set(1)
+}