Merge pull request #6328 from ethereum-optimism/feat/eas

feat: EAS contracts

.circleci/config.yml

@@ -376,7 +376,7 @@ jobs:
   contracts-bedrock-tests:
     docker:
       - image: us-docker.pkg.dev/oplabs-tools-artifacts/images/ci-builder:latest
-    resource_class: large
+    resource_class: xlarge
     steps:
       - checkout
       - attach_workspace: { at: "." }
@@ -409,10 +409,12 @@ jobs:
           environment:
             FOUNDRY_PROFILE: ci
           working_directory: packages/contracts-bedrock
+          no_output_timeout: 15m
 
   contracts-bedrock-checks:
     docker:
       - image: us-docker.pkg.dev/oplabs-tools-artifacts/images/ci-builder:latest
+    resource_class: xlarge
     steps:
       - checkout
       - attach_workspace: { at: "." }
@@ -448,6 +450,7 @@ jobs:
           environment:
             FOUNDRY_PROFILE: ci
           working_directory: packages/contracts-bedrock
+          no_output_timeout: 15m
       - run:
           name: validate deploy configs
           command: |
@@ -1115,6 +1118,18 @@ jobs:
                 command: |
                   docker logs ops-bedrock-op-proposer-1 || echo "No logs."
                 when: on_fail
+            - run:
+                name: Log deployment artifact
+                command: |
+                  cat broadcast/Deploy.s.sol/900/run-latest.json || echo "No deployment file found"
+                when: on_fail
+                working_directory: packages/contracts-bedrock
+            - run:
+                name: Log artifacts directory
+                command: |
+                  ls -R forge-artifacts || echo "No forge artifacts found"
+                when: on_fail
+                working_directory: packages/contracts-bedrock
       - when:
           condition:
             and:

codecov.yml

@@ -8,6 +8,7 @@ ignore:
   - "op-bindings/bindings/*.go"
   - "packages/contracts-bedrock/contracts/vendor/WETH9.sol"
   - "packages/contracts-bedrock/contracts/cannon"  # tested through Go tests
+  - 'packages/contracts-bedrock/contracts/EAS/**/*.sol'
 coverage:
   status:
     patch:

op-bindings/artifacts.json

@@ -31,5 +31,7 @@
   "StandardBridge",
   "CrossDomainMessenger",
   "MIPS",
-  "PreimageOracle"
+  "PreimageOracle",
+  "EAS",
+  "SchemaRegistry"
 ]

op-bindings/bindings/eas_more.go

+// Code generated - DO NOT EDIT.
+// This file is a generated binding and any manual changes will be lost.
+
+package bindings
+
+import (
+	"encoding/json"
+
+	"github.com/ethereum-optimism/optimism/op-bindings/solc"
+)
+
+const EASStorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contract\":\"contracts/EAS/EAS.sol:EAS\",\"label\":\"_nonces\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_mapping(t_address,t_uint256)\"},{\"astId\":1001,\"contract\":\"contracts/EAS/EAS.sol:EAS\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":1002,\"contract\":\"contracts/EAS/EAS.sol:EAS\",\"label\":\"_db\",\"offset\":0,\"slot\":\"50\",\"type\":\"t_mapping(t_bytes32,t_struct(Attestation)1006_storage)\"},{\"astId\":1003,\"contract\":\"contracts/EAS/EAS.sol:EAS\",\"label\":\"_timestamps\",\"offset\":0,\"slot\":\"51\",\"type\":\"t_mapping(t_bytes32,t_uint64)\"},{\"astId\":1004,\"contract\":\"contracts/EAS/EAS.sol:EAS\",\"label\":\"_revocationsOffchain\",\"offset\":0,\"slot\":\"52\",\"type\":\"t_mapping(t_address,t_mapping(t_bytes32,t_uint64))\"},{\"astId\":1005,\"contract\":\"contracts/EAS/EAS.sol:EAS\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"53\",\"type\":\"t_array(t_uint256)47_storage\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_uint256)47_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[47]\",\"numberOfBytes\":\"1504\",\"base\":\"t_uint256\"},\"t_array(t_uint256)49_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[49]\",\"numberOfBytes\":\"1568\",\"base\":\"t_uint256\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_bytes_storage\":{\"encoding\":\"bytes\",\"label\":\"bytes\",\"numberOfBytes\":\"32\"},\"t_mapping(t_address,t_mapping(t_bytes32,t_uint64))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(bytes32 =\u003e uint64))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_bytes32,t_uint64)\"},\"t_mapping(t_address,t_uint256)\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e uint256)\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_uint256\"},\"t_mapping(t_bytes32,t_struct(Attestation)1006_storage)\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e struct Attestation)\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_struct(Attestation)1006_storage\"},\"t_mapping(t_bytes32,t_uint64)\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e uint64)\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_uint64\"},\"t_struct(Attestation)1006_storage\":{\"encoding\":\"inplace\",\"label\":\"struct Attestation\",\"numberOfBytes\":\"224\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_uint64\":{\"encoding\":\"inplace\",\"label\":\"uint64\",\"numberOfBytes\":\"8\"}}}"
+
+var EASStorageLayout = new(solc.StorageLayout)
+
+var EASDeployedBin = "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+
+func init() {
+	if err := json.Unmarshal([]byte(EASStorageLayoutJSON), EASStorageLayout); err != nil {
+		panic(err)
+	}
+
+	layouts["EAS"] = EASStorageLayout
+	deployedBytecodes["EAS"] = EASDeployedBin
+}

op-bindings/bindings/erc20_more.go

@@ -9,7 +9,7 @@ import (
 	"github.com/ethereum-optimism/optimism/op-bindings/solc"
 )
 
-const ERC20StorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contract\":\"node_modules/.pnpm/@openzeppelin+contracts@4.7.3/node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol:ERC20\",\"label\":\"_balances\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_mapping(t_address,t_uint256)\"},{\"astId\":1001,\"contract\":\"node_modules/.pnpm/@openzeppelin+contracts@4.7.3/node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol:ERC20\",\"label\":\"_allowances\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_mapping(t_address,t_mapping(t_address,t_uint256))\"},{\"astId\":1002,\"contract\":\"node_modules/.pnpm/@openzeppelin+contracts@4.7.3/node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol:ERC20\",\"label\":\"_totalSupply\",\"offset\":0,\"slot\":\"2\",\"type\":\"t_uint256\"},{\"astId\":1003,\"contract\":\"node_modules/.pnpm/@openzeppelin+contracts@4.7.3/node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol:ERC20\",\"label\":\"_name\",\"offset\":0,\"slot\":\"3\",\"type\":\"t_string_storage\"},{\"astId\":1004,\"contract\":\"node_modules/.pnpm/@openzeppelin+contracts@4.7.3/node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol:ERC20\",\"label\":\"_symbol\",\"offset\":0,\"slot\":\"4\",\"type\":\"t_string_storage\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_mapping(t_address,t_mapping(t_address,t_uint256))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(address =\u003e uint256))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_address,t_uint256)\"},\"t_mapping(t_address,t_uint256)\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e uint256)\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_uint256\"},\"t_string_storage\":{\"encoding\":\"bytes\",\"label\":\"string\",\"numberOfBytes\":\"32\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"}}}"
+const ERC20StorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contract\":\"node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol:ERC20\",\"label\":\"_balances\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_mapping(t_address,t_uint256)\"},{\"astId\":1001,\"contract\":\"node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol:ERC20\",\"label\":\"_allowances\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_mapping(t_address,t_mapping(t_address,t_uint256))\"},{\"astId\":1002,\"contract\":\"node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol:ERC20\",\"label\":\"_totalSupply\",\"offset\":0,\"slot\":\"2\",\"type\":\"t_uint256\"},{\"astId\":1003,\"contract\":\"node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol:ERC20\",\"label\":\"_name\",\"offset\":0,\"slot\":\"3\",\"type\":\"t_string_storage\"},{\"astId\":1004,\"contract\":\"node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol:ERC20\",\"label\":\"_symbol\",\"offset\":0,\"slot\":\"4\",\"type\":\"t_string_storage\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_mapping(t_address,t_mapping(t_address,t_uint256))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(address =\u003e uint256))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_address,t_uint256)\"},\"t_mapping(t_address,t_uint256)\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e uint256)\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_uint256\"},\"t_string_storage\":{\"encoding\":\"bytes\",\"label\":\"string\",\"numberOfBytes\":\"32\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"}}}"
 
 var ERC20StorageLayout = new(solc.StorageLayout)
 

op-bindings/bindings/preimageoracle.go

@@ -31,7 +31,7 @@ var (
 // PreimageOracleMetaData contains all meta data concerning the PreimageOracle contract.
 var PreimageOracleMetaData = &bind.MetaData{
 	ABI: "[{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"partOffset\",\"type\":\"uint256\"},{\"internalType\":\"bytes32\",\"name\":\"key\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"part\",\"type\":\"bytes32\"},{\"internalType\":\"uint256\",\"name\":\"size\",\"type\":\"uint256\"}],\"name\":\"cheat\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes\",\"name\":\"_preimage\",\"type\":\"bytes\"}],\"name\":\"computePreimageKey\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"key_\",\"type\":\"bytes32\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_partOffset\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_preimage\",\"type\":\"bytes\"}],\"name\":\"loadKeccak256PreimagePart\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"preimageLengths\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"},{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"preimagePartOk\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"},{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"preimageParts\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"_key\",\"type\":\"bytes32\"},{\"internalType\":\"uint256\",\"name\":\"_offset\",\"type\":\"uint256\"}],\"name\":\"readPreimage\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"dat_\",\"type\":\"bytes32\"},{\"internalType\":\"uint256\",\"name\":\"datLen_\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
-	Bin: "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",
+	Bin: "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",
 }
 
 // PreimageOracleABI is the input ABI used to generate the binding from.

op-bindings/bindings/preimageoracle_more.go

@@ -13,9 +13,9 @@ const PreimageOracleStorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contrac
 
 var PreimageOracleStorageLayout = new(solc.StorageLayout)
 
-var PreimageOracleDeployedBin = "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"
+var PreimageOracleDeployedBin = "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"
 
-var PreimageOracleDeployedSourceMap = "144:4615:67:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;357:68;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;413:25:283;;;401:2;386:18;357:68:67;;;;;;;;501:66;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;614:14:283;;607:22;589:41;;577:2;562:18;501:66:67;449:187:283;2154:850:67;;;;;;:::i;:::-;;:::i;838:564::-;;;;;;:::i;:::-;;:::i;:::-;;;;1581:25:283;;;1637:2;1622:18;;1615:34;;;;1554:18;838:564:67;1407:248:283;3295:1462:67;;;;;;:::i;:::-;;:::i;:::-;;1744:262;;;;;;:::i;:::-;1877:19;;;;:14;:19;;;;;;;;:31;;;;;;;;:38;;;;1911:4;1877:38;;;;;;1925:18;;;;;;;;:30;;;;;;;;;:37;;;;1972:20;;;;;;;;;;:27;1744:262;238:50;;;;;;:::i;:::-;;;;;;;;;;;;;;;2154:850;2321:4;2308:18;2567:3;2563:14;;;2458:4;2551:27;2231:12;;2598:11;2308:18;2718:16;2598:11;2700:41;2840:20;2954:19;2947:27;2976:11;2944:44;;2154:850;-1:-1:-1;;;2154:850:67:o;838:564::-;938:12;991:20;;;:14;:20;;;;;;;;:29;;;;;;;;;938:12;;991:29;;983:62;;;;;;;3101:2:283;983:62:67;;;3083:21:283;3140:2;3120:18;;;3113:30;3179:22;3159:18;;;3152:50;3219:18;;983:62:67;;;;;;;;-1:-1:-1;1176:14:67;1193:21;;;1164:2;1193:21;;;;;;;;1244:10;1193:21;1253:1;1244:10;:::i;:::-;1228:12;:7;1238:2;1228:12;:::i;:::-;:26;1224:87;;1293:7;1280:10;:6;1289:1;1280:10;:::i;:::-;:20;;;;:::i;:::-;1270:30;;1224:87;-1:-1:-1;1367:19:67;;;;:13;:19;;;;;;;;:28;;;;;;;;;;;;838:564;;-1:-1:-1;838:564:67:o;3295:1462::-;3591:4;3578:18;3396:12;;3720:1;3710:12;;3694:29;;3691:77;;;3752:1;3749;3742:12;3691:77;4011:3;4007:14;;;3911:4;3995:27;4042:11;4016:4;4161:16;4042:11;4143:41;4374:29;;;4378:11;4374:29;4368:36;4426:20;;;;4573:19;4566:27;4595:11;4563:44;4626:19;;;;4604:1;4626:19;;;;;;;;:32;;;;;;;;:39;;;;4661:4;4626:39;;;;;;4675:18;;;;;;;;:31;;;;;;;;;:38;;;;4723:20;;;;;;;;;;;:27;;;;-1:-1:-1;;;;3295:1462:67:o;14:248:283:-;82:6;90;143:2;131:9;122:7;118:23;114:32;111:52;;;159:1;156;149:12;111:52;-1:-1:-1;;182:23:283;;;252:2;237:18;;;224:32;;-1:-1:-1;14:248:283:o;641:347::-;692:8;702:6;756:3;749:4;741:6;737:17;733:27;723:55;;774:1;771;764:12;723:55;-1:-1:-1;797:20:283;;840:18;829:30;;826:50;;;872:1;869;862:12;826:50;909:4;901:6;897:17;885:29;;961:3;954:4;945:6;937;933:19;929:30;926:39;923:59;;;978:1;975;968:12;923:59;641:347;;;;;:::o;993:409::-;1063:6;1071;1124:2;1112:9;1103:7;1099:23;1095:32;1092:52;;;1140:1;1137;1130:12;1092:52;1180:9;1167:23;1213:18;1205:6;1202:30;1199:50;;;1245:1;1242;1235:12;1199:50;1284:58;1334:7;1325:6;1314:9;1310:22;1284:58;:::i;:::-;1361:8;;1258:84;;-1:-1:-1;993:409:283;-1:-1:-1;;;;993:409:283:o;1660:477::-;1739:6;1747;1755;1808:2;1796:9;1787:7;1783:23;1779:32;1776:52;;;1824:1;1821;1814:12;1776:52;1860:9;1847:23;1837:33;;1921:2;1910:9;1906:18;1893:32;1948:18;1940:6;1937:30;1934:50;;;1980:1;1977;1970:12;1934:50;2019:58;2069:7;2060:6;2049:9;2045:22;2019:58;:::i;:::-;1660:477;;2096:8;;-1:-1:-1;1993:84:283;;-1:-1:-1;;;;1660:477:283:o;2142:385::-;2228:6;2236;2244;2252;2305:3;2293:9;2284:7;2280:23;2276:33;2273:53;;;2322:1;2319;2312:12;2273:53;-1:-1:-1;;2345:23:283;;;2415:2;2400:18;;2387:32;;-1:-1:-1;2466:2:283;2451:18;;2438:32;;2517:2;2502:18;2489:32;;-1:-1:-1;2142:385:283;-1:-1:-1;2142:385:283:o;2532:180::-;2591:6;2644:2;2632:9;2623:7;2619:23;2615:32;2612:52;;;2660:1;2657;2650:12;2612:52;-1:-1:-1;2683:23:283;;2532:180;-1:-1:-1;2532:180:283:o;3248:184::-;3300:77;3297:1;3290:88;3397:4;3394:1;3387:15;3421:4;3418:1;3411:15;3437:128;3477:3;3508:1;3504:6;3501:1;3498:13;3495:39;;;3514:18;;:::i;:::-;-1:-1:-1;3550:9:283;;3437:128::o;3570:125::-;3610:4;3638:1;3635;3632:8;3629:34;;;3643:18;;:::i;:::-;-1:-1:-1;3680:9:283;;3570:125::o"
+var PreimageOracleDeployedSourceMap = "144:4615:32:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;357:68;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;413:25:104;;;401:2;386:18;357:68:32;;;;;;;;501:66;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;614:14:104;;607:22;589:41;;577:2;562:18;501:66:32;449:187:104;2154:850:32;;;;;;:::i;:::-;;:::i;838:564::-;;;;;;:::i;:::-;;:::i;:::-;;;;1581:25:104;;;1637:2;1622:18;;1615:34;;;;1554:18;838:564:32;1407:248:104;3295:1462:32;;;;;;:::i;:::-;;:::i;:::-;;1744:262;;;;;;:::i;:::-;1877:19;;;;:14;:19;;;;;;;;:31;;;;;;;;:38;;;;1911:4;1877:38;;;;;;1925:18;;;;;;;;:30;;;;;;;;;:37;;;;1972:20;;;;;;;;;;:27;1744:262;238:50;;;;;;:::i;:::-;;;;;;;;;;;;;;;2154:850;2321:4;2308:18;2567:3;2563:14;;;2458:4;2551:27;2231:12;;2598:11;2308:18;2718:16;2598:11;2700:41;2840:20;2954:19;2947:27;2976:11;2944:44;;2154:850;-1:-1:-1;;;2154:850:32:o;838:564::-;938:12;991:20;;;:14;:20;;;;;;;;:29;;;;;;;;;938:12;;991:29;;983:62;;;;;;;3101:2:104;983:62:32;;;3083:21:104;3140:2;3120:18;;;3113:30;3179:22;3159:18;;;3152:50;3219:18;;983:62:32;;;;;;;;-1:-1:-1;1176:14:32;1193:21;;;1164:2;1193:21;;;;;;;;1244:10;1193:21;1253:1;1244:10;:::i;:::-;1228:12;:7;1238:2;1228:12;:::i;:::-;:26;1224:87;;1293:7;1280:10;:6;1289:1;1280:10;:::i;:::-;:20;;;;:::i;:::-;1270:30;;1224:87;-1:-1:-1;1367:19:32;;;;:13;:19;;;;;;;;:28;;;;;;;;;;;;838:564;;-1:-1:-1;838:564:32:o;3295:1462::-;3591:4;3578:18;3396:12;;3720:1;3710:12;;3694:29;;3691:77;;;3752:1;3749;3742:12;3691:77;4011:3;4007:14;;;3911:4;3995:27;4042:11;4016:4;4161:16;4042:11;4143:41;4374:29;;;4378:11;4374:29;4368:36;4426:20;;;;4573:19;4566:27;4595:11;4563:44;4626:19;;;;4604:1;4626:19;;;;;;;;:32;;;;;;;;:39;;;;4661:4;4626:39;;;;;;4675:18;;;;;;;;:31;;;;;;;;;:38;;;;4723:20;;;;;;;;;;;:27;;;;-1:-1:-1;;;;3295:1462:32:o;14:248:104:-;82:6;90;143:2;131:9;122:7;118:23;114:32;111:52;;;159:1;156;149:12;111:52;-1:-1:-1;;182:23:104;;;252:2;237:18;;;224:32;;-1:-1:-1;14:248:104:o;641:347::-;692:8;702:6;756:3;749:4;741:6;737:17;733:27;723:55;;774:1;771;764:12;723:55;-1:-1:-1;797:20:104;;840:18;829:30;;826:50;;;872:1;869;862:12;826:50;909:4;901:6;897:17;885:29;;961:3;954:4;945:6;937;933:19;929:30;926:39;923:59;;;978:1;975;968:12;923:59;641:347;;;;;:::o;993:409::-;1063:6;1071;1124:2;1112:9;1103:7;1099:23;1095:32;1092:52;;;1140:1;1137;1130:12;1092:52;1180:9;1167:23;1213:18;1205:6;1202:30;1199:50;;;1245:1;1242;1235:12;1199:50;1284:58;1334:7;1325:6;1314:9;1310:22;1284:58;:::i;:::-;1361:8;;1258:84;;-1:-1:-1;993:409:104;-1:-1:-1;;;;993:409:104:o;1660:477::-;1739:6;1747;1755;1808:2;1796:9;1787:7;1783:23;1779:32;1776:52;;;1824:1;1821;1814:12;1776:52;1860:9;1847:23;1837:33;;1921:2;1910:9;1906:18;1893:32;1948:18;1940:6;1937:30;1934:50;;;1980:1;1977;1970:12;1934:50;2019:58;2069:7;2060:6;2049:9;2045:22;2019:58;:::i;:::-;1660:477;;2096:8;;-1:-1:-1;1993:84:104;;-1:-1:-1;;;;1660:477:104:o;2142:385::-;2228:6;2236;2244;2252;2305:3;2293:9;2284:7;2280:23;2276:33;2273:53;;;2322:1;2319;2312:12;2273:53;-1:-1:-1;;2345:23:104;;;2415:2;2400:18;;2387:32;;-1:-1:-1;2466:2:104;2451:18;;2438:32;;2517:2;2502:18;2489:32;;-1:-1:-1;2142:385:104;-1:-1:-1;2142:385:104:o;2532:180::-;2591:6;2644:2;2632:9;2623:7;2619:23;2615:32;2612:52;;;2660:1;2657;2650:12;2612:52;-1:-1:-1;2683:23:104;;2532:180;-1:-1:-1;2532:180:104:o;3248:184::-;3300:77;3297:1;3290:88;3397:4;3394:1;3387:15;3421:4;3418:1;3411:15;3437:125;3502:9;;;3523:10;;;3520:36;;;3536:18;;:::i;:::-;3437:125;;;;:::o;3567:128::-;3634:9;;;3655:11;;;3652:37;;;3669:18;;:::i"
 
 func init() {
 	if err := json.Unmarshal([]byte(PreimageOracleStorageLayoutJSON), PreimageOracleStorageLayout); err != nil {

op-bindings/bindings/schemaregistry.go

+// Code generated - DO NOT EDIT.
+// This file is a generated binding and any manual changes will be lost.
+
+package bindings
+
+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
+)
+
+// SchemaRecord is an auto generated low-level Go binding around an user-defined struct.
+type SchemaRecord struct {
+	Uid       [32]byte
+	Resolver  common.Address
+	Revocable bool
+	Schema    string
+}
+
+// SchemaRegistryMetaData contains all meta data concerning the SchemaRegistry contract.
+var SchemaRegistryMetaData = &bind.MetaData{
+	ABI: "[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"inputs\":[],\"name\":\"AlreadyExists\",\"type\":\"error\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"bytes32\",\"name\":\"uid\",\"type\":\"bytes32\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"registerer\",\"type\":\"address\"}],\"name\":\"Registered\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"uid\",\"type\":\"bytes32\"}],\"name\":\"getSchema\",\"outputs\":[{\"components\":[{\"internalType\":\"bytes32\",\"name\":\"uid\",\"type\":\"bytes32\"},{\"internalType\":\"contractISchemaResolver\",\"name\":\"resolver\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"revocable\",\"type\":\"bool\"},{\"internalType\":\"string\",\"name\":\"schema\",\"type\":\"string\"}],\"internalType\":\"structSchemaRecord\",\"name\":\"\",\"type\":\"tuple\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"string\",\"name\":\"schema\",\"type\":\"string\"},{\"internalType\":\"contractISchemaResolver\",\"name\":\"resolver\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"revocable\",\"type\":\"bool\"}],\"name\":\"register\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"version\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
+	Bin: 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+}
+
+// SchemaRegistryABI is the input ABI used to generate the binding from.
+// Deprecated: Use SchemaRegistryMetaData.ABI instead.
+var SchemaRegistryABI = SchemaRegistryMetaData.ABI
+
+// SchemaRegistryBin is the compiled bytecode used for deploying new contracts.
+// Deprecated: Use SchemaRegistryMetaData.Bin instead.
+var SchemaRegistryBin = SchemaRegistryMetaData.Bin
+
+// DeploySchemaRegistry deploys a new Ethereum contract, binding an instance of SchemaRegistry to it.
+func DeploySchemaRegistry(auth *bind.TransactOpts, backend bind.ContractBackend) (common.Address, *types.Transaction, *SchemaRegistry, error) {
+	parsed, err := SchemaRegistryMetaData.GetAbi()
+	if err != nil {
+		return common.Address{}, nil, nil, err
+	}
+	if parsed == nil {
+		return common.Address{}, nil, nil, errors.New("GetABI returned nil")
+	}
+
+	address, tx, contract, err := bind.DeployContract(auth, *parsed, common.FromHex(SchemaRegistryBin), backend)
+	if err != nil {
+		return common.Address{}, nil, nil, err
+	}
+	return address, tx, &SchemaRegistry{SchemaRegistryCaller: SchemaRegistryCaller{contract: contract}, SchemaRegistryTransactor: SchemaRegistryTransactor{contract: contract}, SchemaRegistryFilterer: SchemaRegistryFilterer{contract: contract}}, nil
+}
+
+// SchemaRegistry is an auto generated Go binding around an Ethereum contract.
+type SchemaRegistry struct {
+	SchemaRegistryCaller     // Read-only binding to the contract
+	SchemaRegistryTransactor // Write-only binding to the contract
+	SchemaRegistryFilterer   // Log filterer for contract events
+}
+
+// SchemaRegistryCaller is an auto generated read-only Go binding around an Ethereum contract.
+type SchemaRegistryCaller struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// SchemaRegistryTransactor is an auto generated write-only Go binding around an Ethereum contract.
+type SchemaRegistryTransactor struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// SchemaRegistryFilterer is an auto generated log filtering Go binding around an Ethereum contract events.
+type SchemaRegistryFilterer struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// SchemaRegistrySession is an auto generated Go binding around an Ethereum contract,
+// with pre-set call and transact options.
+type SchemaRegistrySession struct {
+	Contract     *SchemaRegistry   // 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
+}
+
+// SchemaRegistryCallerSession is an auto generated read-only Go binding around an Ethereum contract,
+// with pre-set call options.
+type SchemaRegistryCallerSession struct {
+	Contract *SchemaRegistryCaller // Generic contract caller binding to set the session for
+	CallOpts bind.CallOpts         // Call options to use throughout this session
+}
+
+// SchemaRegistryTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
+// with pre-set transact options.
+type SchemaRegistryTransactorSession struct {
+	Contract     *SchemaRegistryTransactor // Generic contract transactor binding to set the session for
+	TransactOpts bind.TransactOpts         // Transaction auth options to use throughout this session
+}
+
+// SchemaRegistryRaw is an auto generated low-level Go binding around an Ethereum contract.
+type SchemaRegistryRaw struct {
+	Contract *SchemaRegistry // Generic contract binding to access the raw methods on
+}
+
+// SchemaRegistryCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
+type SchemaRegistryCallerRaw struct {
+	Contract *SchemaRegistryCaller // Generic read-only contract binding to access the raw methods on
+}
+
+// SchemaRegistryTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
+type SchemaRegistryTransactorRaw struct {
+	Contract *SchemaRegistryTransactor // Generic write-only contract binding to access the raw methods on
+}
+
+// NewSchemaRegistry creates a new instance of SchemaRegistry, bound to a specific deployed contract.
+func NewSchemaRegistry(address common.Address, backend bind.ContractBackend) (*SchemaRegistry, error) {
+	contract, err := bindSchemaRegistry(address, backend, backend, backend)
+	if err != nil {
+		return nil, err
+	}
+	return &SchemaRegistry{SchemaRegistryCaller: SchemaRegistryCaller{contract: contract}, SchemaRegistryTransactor: SchemaRegistryTransactor{contract: contract}, SchemaRegistryFilterer: SchemaRegistryFilterer{contract: contract}}, nil
+}
+
+// NewSchemaRegistryCaller creates a new read-only instance of SchemaRegistry, bound to a specific deployed contract.
+func NewSchemaRegistryCaller(address common.Address, caller bind.ContractCaller) (*SchemaRegistryCaller, error) {
+	contract, err := bindSchemaRegistry(address, caller, nil, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &SchemaRegistryCaller{contract: contract}, nil
+}
+
+// NewSchemaRegistryTransactor creates a new write-only instance of SchemaRegistry, bound to a specific deployed contract.
+func NewSchemaRegistryTransactor(address common.Address, transactor bind.ContractTransactor) (*SchemaRegistryTransactor, error) {
+	contract, err := bindSchemaRegistry(address, nil, transactor, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &SchemaRegistryTransactor{contract: contract}, nil
+}
+
+// NewSchemaRegistryFilterer creates a new log filterer instance of SchemaRegistry, bound to a specific deployed contract.
+func NewSchemaRegistryFilterer(address common.Address, filterer bind.ContractFilterer) (*SchemaRegistryFilterer, error) {
+	contract, err := bindSchemaRegistry(address, nil, nil, filterer)
+	if err != nil {
+		return nil, err
+	}
+	return &SchemaRegistryFilterer{contract: contract}, nil
+}
+
+// bindSchemaRegistry binds a generic wrapper to an already deployed contract.
+func bindSchemaRegistry(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) {
+	parsed, err := abi.JSON(strings.NewReader(SchemaRegistryABI))
+	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 (_SchemaRegistry *SchemaRegistryRaw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
+	return _SchemaRegistry.Contract.SchemaRegistryCaller.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 (_SchemaRegistry *SchemaRegistryRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _SchemaRegistry.Contract.SchemaRegistryTransactor.contract.Transfer(opts)
+}
+
+// Transact invokes the (paid) contract method with params as input values.
+func (_SchemaRegistry *SchemaRegistryRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
+	return _SchemaRegistry.Contract.SchemaRegistryTransactor.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 (_SchemaRegistry *SchemaRegistryCallerRaw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
+	return _SchemaRegistry.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 (_SchemaRegistry *SchemaRegistryTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _SchemaRegistry.Contract.contract.Transfer(opts)
+}
+
+// Transact invokes the (paid) contract method with params as input values.
+func (_SchemaRegistry *SchemaRegistryTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
+	return _SchemaRegistry.Contract.contract.Transact(opts, method, params...)
+}
+
+// GetSchema is a free data retrieval call binding the contract method 0xa2ea7c6e.
+//
+// Solidity: function getSchema(bytes32 uid) view returns((bytes32,address,bool,string))
+func (_SchemaRegistry *SchemaRegistryCaller) GetSchema(opts *bind.CallOpts, uid [32]byte) (SchemaRecord, error) {
+	var out []interface{}
+	err := _SchemaRegistry.contract.Call(opts, &out, "getSchema", uid)
+
+	if err != nil {
+		return *new(SchemaRecord), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(SchemaRecord)).(*SchemaRecord)
+
+	return out0, err
+
+}
+
+// GetSchema is a free data retrieval call binding the contract method 0xa2ea7c6e.
+//
+// Solidity: function getSchema(bytes32 uid) view returns((bytes32,address,bool,string))
+func (_SchemaRegistry *SchemaRegistrySession) GetSchema(uid [32]byte) (SchemaRecord, error) {
+	return _SchemaRegistry.Contract.GetSchema(&_SchemaRegistry.CallOpts, uid)
+}
+
+// GetSchema is a free data retrieval call binding the contract method 0xa2ea7c6e.
+//
+// Solidity: function getSchema(bytes32 uid) view returns((bytes32,address,bool,string))
+func (_SchemaRegistry *SchemaRegistryCallerSession) GetSchema(uid [32]byte) (SchemaRecord, error) {
+	return _SchemaRegistry.Contract.GetSchema(&_SchemaRegistry.CallOpts, uid)
+}
+
+// Version is a free data retrieval call binding the contract method 0x54fd4d50.
+//
+// Solidity: function version() view returns(string)
+func (_SchemaRegistry *SchemaRegistryCaller) Version(opts *bind.CallOpts) (string, error) {
+	var out []interface{}
+	err := _SchemaRegistry.contract.Call(opts, &out, "version")
+
+	if err != nil {
+		return *new(string), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(string)).(*string)
+
+	return out0, err
+
+}
+
+// Version is a free data retrieval call binding the contract method 0x54fd4d50.
+//
+// Solidity: function version() view returns(string)
+func (_SchemaRegistry *SchemaRegistrySession) Version() (string, error) {
+	return _SchemaRegistry.Contract.Version(&_SchemaRegistry.CallOpts)
+}
+
+// Version is a free data retrieval call binding the contract method 0x54fd4d50.
+//
+// Solidity: function version() view returns(string)
+func (_SchemaRegistry *SchemaRegistryCallerSession) Version() (string, error) {
+	return _SchemaRegistry.Contract.Version(&_SchemaRegistry.CallOpts)
+}
+
+// Register is a paid mutator transaction binding the contract method 0x60d7a278.
+//
+// Solidity: function register(string schema, address resolver, bool revocable) returns(bytes32)
+func (_SchemaRegistry *SchemaRegistryTransactor) Register(opts *bind.TransactOpts, schema string, resolver common.Address, revocable bool) (*types.Transaction, error) {
+	return _SchemaRegistry.contract.Transact(opts, "register", schema, resolver, revocable)
+}
+
+// Register is a paid mutator transaction binding the contract method 0x60d7a278.
+//
+// Solidity: function register(string schema, address resolver, bool revocable) returns(bytes32)
+func (_SchemaRegistry *SchemaRegistrySession) Register(schema string, resolver common.Address, revocable bool) (*types.Transaction, error) {
+	return _SchemaRegistry.Contract.Register(&_SchemaRegistry.TransactOpts, schema, resolver, revocable)
+}
+
+// Register is a paid mutator transaction binding the contract method 0x60d7a278.
+//
+// Solidity: function register(string schema, address resolver, bool revocable) returns(bytes32)
+func (_SchemaRegistry *SchemaRegistryTransactorSession) Register(schema string, resolver common.Address, revocable bool) (*types.Transaction, error) {
+	return _SchemaRegistry.Contract.Register(&_SchemaRegistry.TransactOpts, schema, resolver, revocable)
+}
+
+// SchemaRegistryRegisteredIterator is returned from FilterRegistered and is used to iterate over the raw logs and unpacked data for Registered events raised by the SchemaRegistry contract.
+type SchemaRegistryRegisteredIterator struct {
+	Event *SchemaRegistryRegistered // 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 *SchemaRegistryRegisteredIterator) 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(SchemaRegistryRegistered)
+			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(SchemaRegistryRegistered)
+		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 *SchemaRegistryRegisteredIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *SchemaRegistryRegisteredIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// SchemaRegistryRegistered represents a Registered event raised by the SchemaRegistry contract.
+type SchemaRegistryRegistered struct {
+	Uid        [32]byte
+	Registerer common.Address
+	Raw        types.Log // Blockchain specific contextual infos
+}
+
+// FilterRegistered is a free log retrieval operation binding the contract event 0x7d917fcbc9a29a9705ff9936ffa599500e4fd902e4486bae317414fe967b307c.
+//
+// Solidity: event Registered(bytes32 indexed uid, address registerer)
+func (_SchemaRegistry *SchemaRegistryFilterer) FilterRegistered(opts *bind.FilterOpts, uid [][32]byte) (*SchemaRegistryRegisteredIterator, error) {
+
+	var uidRule []interface{}
+	for _, uidItem := range uid {
+		uidRule = append(uidRule, uidItem)
+	}
+
+	logs, sub, err := _SchemaRegistry.contract.FilterLogs(opts, "Registered", uidRule)
+	if err != nil {
+		return nil, err
+	}
+	return &SchemaRegistryRegisteredIterator{contract: _SchemaRegistry.contract, event: "Registered", logs: logs, sub: sub}, nil
+}
+
+// WatchRegistered is a free log subscription operation binding the contract event 0x7d917fcbc9a29a9705ff9936ffa599500e4fd902e4486bae317414fe967b307c.
+//
+// Solidity: event Registered(bytes32 indexed uid, address registerer)
+func (_SchemaRegistry *SchemaRegistryFilterer) WatchRegistered(opts *bind.WatchOpts, sink chan<- *SchemaRegistryRegistered, uid [][32]byte) (event.Subscription, error) {
+
+	var uidRule []interface{}
+	for _, uidItem := range uid {
+		uidRule = append(uidRule, uidItem)
+	}
+
+	logs, sub, err := _SchemaRegistry.contract.WatchLogs(opts, "Registered", uidRule)
+	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(SchemaRegistryRegistered)
+				if err := _SchemaRegistry.contract.UnpackLog(event, "Registered", 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
+}
+
+// ParseRegistered is a log parse operation binding the contract event 0x7d917fcbc9a29a9705ff9936ffa599500e4fd902e4486bae317414fe967b307c.
+//
+// Solidity: event Registered(bytes32 indexed uid, address registerer)
+func (_SchemaRegistry *SchemaRegistryFilterer) ParseRegistered(log types.Log) (*SchemaRegistryRegistered, error) {
+	event := new(SchemaRegistryRegistered)
+	if err := _SchemaRegistry.contract.UnpackLog(event, "Registered", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}

op-bindings/bindings/schemaregistry_more.go

+// Code generated - DO NOT EDIT.
+// This file is a generated binding and any manual changes will be lost.
+
+package bindings
+
+import (
+	"encoding/json"
+
+	"github.com/ethereum-optimism/optimism/op-bindings/solc"
+)
+
+const SchemaRegistryStorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contract\":\"contracts/EAS/SchemaRegistry.sol:SchemaRegistry\",\"label\":\"_registry\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_mapping(t_bytes32,t_struct(SchemaRecord)1003_storage)\"},{\"astId\":1001,\"contract\":\"contracts/EAS/SchemaRegistry.sol:SchemaRegistry\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_array(t_uint256)49_storage\"}],\"types\":{\"t_array(t_uint256)49_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[49]\",\"numberOfBytes\":\"1568\",\"base\":\"t_uint256\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_contract(ISchemaResolver)1002\":{\"encoding\":\"inplace\",\"label\":\"contract ISchemaResolver\",\"numberOfBytes\":\"20\"},\"t_mapping(t_bytes32,t_struct(SchemaRecord)1003_storage)\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e struct SchemaRecord)\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_struct(SchemaRecord)1003_storage\"},\"t_string_storage\":{\"encoding\":\"bytes\",\"label\":\"string\",\"numberOfBytes\":\"32\"},\"t_struct(SchemaRecord)1003_storage\":{\"encoding\":\"inplace\",\"label\":\"struct SchemaRecord\",\"numberOfBytes\":\"96\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"}}}"
+
+var SchemaRegistryStorageLayout = new(solc.StorageLayout)
+
+var SchemaRegistryDeployedBin = "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"
+
+func init() {
+	if err := json.Unmarshal([]byte(SchemaRegistryStorageLayoutJSON), SchemaRegistryStorageLayout); err != nil {
+		panic(err)
+	}
+
+	layouts["SchemaRegistry"] = SchemaRegistryStorageLayout
+	deployedBytecodes["SchemaRegistry"] = SchemaRegistryDeployedBin
+}

op-bindings/gen/main.go

@@ -9,6 +9,7 @@ import (
 	"os/exec"
 	"path"
 	"path/filepath"
+	"regexp"
 	"strings"
 	"text/template"
 
@@ -84,17 +85,22 @@ func main() {
 	// and hold a mapping from the contract name to the contract path.
 	// Walk walks the directory deterministically, so the later instance
 	// of the contract with the same name will be used
+	re := regexp.MustCompile(`\.\d+\.\d+\.\d+`)
 	artifactPaths := make(map[string]string)
 	if err := filepath.Walk(f.ForgeArtifacts,
 		func(path string, info os.FileInfo, err error) error {
 			if err != nil {
 				return err
 			}
+
+			if strings.HasSuffix(path, ".json") {
 				base := filepath.Base(path)
-			if strings.HasSuffix(base, ".json") {
-				name := base[:len(base)-5]
-				if _, ok := artifactPaths[name]; !ok {
-					artifactPaths[name] = path
+				name := strings.TrimSuffix(base, ".json")
+
+				// remove the compiler version from the name
+				sanitized := re.ReplaceAllString(name, "")
+				if _, ok := artifactPaths[sanitized]; !ok {
+					artifactPaths[sanitized] = path
 				}
 			}
 			return nil
@@ -108,6 +114,7 @@ func main() {
 		artifactPath := path.Join(f.ForgeArtifacts, name+".sol", name+".json")
 		forgeArtifactData, err := os.ReadFile(artifactPath)
 		if errors.Is(err, os.ErrNotExist) {
+			log.Printf("cannot find forge-artifact for %s at standard path %s, trying %s\n", name, artifactPath, artifactPaths[name])
 			artifactPath = artifactPaths[name]
 			forgeArtifactData, err = os.ReadFile(artifactPath)
 			if errors.Is(err, os.ErrNotExist) {

op-bindings/predeploys/addresses.go

@@ -23,6 +23,8 @@ const (
 	ProxyAdmin                    = "0x4200000000000000000000000000000000000018"
 	BaseFeeVault                  = "0x4200000000000000000000000000000000000019"
 	L1FeeVault                    = "0x420000000000000000000000000000000000001a"
+	SchemaRegistry                = "0x4200000000000000000000000000000000000020"
+	EAS                           = "0x4200000000000000000000000000000000000021"
 )
 
 var (
@@ -43,6 +45,8 @@ var (
 	ProxyAdminAddr                    = common.HexToAddress(ProxyAdmin)
 	BaseFeeVaultAddr                  = common.HexToAddress(BaseFeeVault)
 	L1FeeVaultAddr                    = common.HexToAddress(L1FeeVault)
+	SchemaRegistryAddr                = common.HexToAddress(SchemaRegistry)
+	EASAddr                           = common.HexToAddress(EAS)
 
 	Predeploys = make(map[string]*common.Address)
 )
@@ -76,4 +80,6 @@ func init() {
 	Predeploys["ProxyAdmin"] = &ProxyAdminAddr
 	Predeploys["BaseFeeVault"] = &BaseFeeVaultAddr
 	Predeploys["L1FeeVault"] = &L1FeeVaultAddr
+	Predeploys["SchemaRegistry"] = &SchemaRegistryAddr
+	Predeploys["EAS"] = &EASAddr
 }

op-chain-ops/cmd/check-l2/main.go

@@ -225,6 +225,16 @@ func checkPredeployConfig(client *ethclient.Client, name string) error {
 			if err := checkL2ToL1MessagePasser(p, client); err != nil {
 				return err
 			}
+
+		case predeploys.SchemaRegistryAddr:
+			if err := checkSchemaRegistry(p, client); err != nil {
+				return err
+			}
+
+		case predeploys.EASAddr:
+			if err := checkEAS(p, client); err != nil {
+				return err
+			}
 		}
 		return nil
 	})
@@ -712,6 +722,43 @@ func checkDeployerWhitelist(addr common.Address, client *ethclient.Client) error
 	return nil
 }
 
+func checkSchemaRegistry(addr common.Address, client *ethclient.Client) error {
+	contract, err := bindings.NewSchemaRegistry(addr, client)
+	if err != nil {
+		return err
+	}
+
+	version, err := contract.Version(&bind.CallOpts{})
+	if err != nil {
+		return err
+	}
+	log.Info("SchemaRegistry version", "version", version)
+	return nil
+}
+
+func checkEAS(addr common.Address, client *ethclient.Client) error {
+	contract, err := bindings.NewEAS(addr, client)
+	if err != nil {
+		return err
+	}
+
+	registry, err := contract.GetSchemaRegistry(&bind.CallOpts{})
+	if err != nil {
+		return err
+	}
+	if registry != predeploys.SchemaRegistryAddr {
+		return fmt.Errorf("Incorrect registry address %s", registry)
+	}
+	log.Info("EAS", "registry", registry)
+
+	version, err := contract.Version(&bind.CallOpts{})
+	if err != nil {
+		return err
+	}
+	log.Info("EAS version", "version", version)
+	return nil
+}
+
 func getEIP1967AdminAddress(client *ethclient.Client, addr common.Address) (common.Address, error) {
 	slot, err := client.StorageAt(context.Background(), addr, util.EIP1967AdminSlot, nil)
 	if err != nil {

op-chain-ops/genesis/layer_two.go

@@ -61,6 +61,7 @@ func BuildL2Genesis(config *DeployConfig, l1StartBlock *types.Block) (*core.Gene
 			}
 			db.CreateAccount(codeAddr)
 			db.SetState(addr, ImplementationSlot, codeAddr.Hash())
+			log.Info("Set proxy", "name", name, "address", addr, "implementation", codeAddr)
 		} else {
 			db.DeleteState(addr, AdminSlot)
 		}

op-chain-ops/genesis/layer_two_test.go

@@ -81,7 +81,7 @@ func TestBuildL2DeveloperGenesis(t *testing.T) {
 	err = config.InitDeveloperDeployedAddresses()
 	require.NoError(t, err)
 	gen := testBuildL2Genesis(t, config)
-	require.Equal(t, 2342, len(gen.Alloc))
+	require.Equal(t, 2344, len(gen.Alloc))
 }
 
 func TestBuildL2MainnetGenesis(t *testing.T) {
@@ -90,7 +90,7 @@ func TestBuildL2MainnetGenesis(t *testing.T) {
 	config.EnableGovernance = true
 	config.FundDevAccounts = false
 	gen := testBuildL2Genesis(t, config)
-	require.Equal(t, 2064, len(gen.Alloc))
+	require.Equal(t, 2066, len(gen.Alloc))
 }
 
 func TestBuildL2MainnetNoGovernanceGenesis(t *testing.T) {
@@ -99,5 +99,5 @@ func TestBuildL2MainnetNoGovernanceGenesis(t *testing.T) {
 	config.EnableGovernance = false
 	config.FundDevAccounts = false
 	gen := testBuildL2Genesis(t, config)
-	require.Equal(t, 2064, len(gen.Alloc))
+	require.Equal(t, 2066, len(gen.Alloc))
 }

op-chain-ops/immutables/immutables.go

@@ -144,6 +144,12 @@ func BuildOptimism(immutable ImmutableConfig) (DeploymentResults, error) {
 		{
 			Name: "LegacyERC20ETH",
 		},
+		{
+			Name: "EAS",
+		},
+		{
+			Name: "SchemaRegistry",
+		},
 	}
 	return BuildL2(deployments)
 }
@@ -239,6 +245,10 @@ func l2Deployer(backend *backends.SimulatedBackend, opts *bind.TransactOpts, dep
 		_, tx, _, err = bindings.DeployOptimismMintableERC721Factory(opts, backend, bridge, remoteChainId)
 	case "LegacyERC20ETH":
 		_, tx, _, err = bindings.DeployLegacyERC20ETH(opts, backend)
+	case "EAS":
+		_, tx, _, err = bindings.DeployEAS(opts, backend)
+	case "SchemaRegistry":
+		_, tx, _, err = bindings.DeploySchemaRegistry(opts, backend)
 	default:
 		return tx, fmt.Errorf("unknown contract: %s", deployment.Name)
 	}

op-chain-ops/immutables/immutables_test.go

@@ -63,6 +63,8 @@ func TestBuildOptimism(t *testing.T) {
 		"L2ERC721Bridge":                true,
 		"OptimismMintableERC721Factory": true,
 		"LegacyERC20ETH":                true,
+		"EAS":                           true,
+		"SchemaRegistry":                true,
 	}
 
 	// Only the exact contracts that we care about are being

packages/contracts-bedrock/.gas-snapshot

@@ -433,9 +433,9 @@ OptimistTest:test_supportsInterface_returnsCorrectInterfaceForERC721_succeeds()
 OptimistTest:test_tokenIdOfAddress_returnsOwnerID_succeeds() (gas: 63730)
 OptimistTest:test_tokenURI_returnsCorrectTokenURI_succeeds() (gas: 195908)
 OptimistTest:test_transferFrom_soulbound_reverts() (gas: 75512)
-PreimageOracle_Test:test_computePreimageKey_succeeds() (gas: 6267)
-PreimageOracle_Test:test_loadKeccak256PreimagePart_outOfBoundsOffset_reverts() (gas: 9025)
-PreimageOracle_Test:test_loadKeccak256PreimagePart_succeeds() (gas: 77552)
+PreimageOracle_Test:test_computePreimageKey_succeeds() (gas: 6242)
+PreimageOracle_Test:test_loadKeccak256PreimagePart_outOfBoundsOffset_reverts() (gas: 9005)
+PreimageOracle_Test:test_loadKeccak256PreimagePart_succeeds() (gas: 77502)
 ProxyAdmin_Test:test_chugsplashChangeProxyAdmin_succeeds() (gas: 35586)
 ProxyAdmin_Test:test_chugsplashGetProxyAdmin_succeeds() (gas: 15675)
 ProxyAdmin_Test:test_chugsplashGetProxyImplementation_succeeds() (gas: 51084)

packages/contracts-bedrock/contracts/EAS/Common.sol

+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.0;
+
+// A representation of an empty/uninitialized UID.
+bytes32 constant EMPTY_UID = 0;
+
+// A zero expiration represents an non-expiring attestation.
+uint64 constant NO_EXPIRATION_TIME = 0;
+
+error AccessDenied();
+error InvalidEAS();
+error InvalidLength();
+error InvalidSignature();
+error NotFound();
+
+/**
+ * @dev A struct representing EIP712 signature data.
+ */
+struct EIP712Signature {
+    uint8 v; // The recovery ID.
+    bytes32 r; // The x-coordinate of the nonce R.
+    bytes32 s; // The signature data.
+}
+
+/**
+ * @dev A struct representing a single attestation.
+ */
+struct Attestation {
+    bytes32 uid; // A unique identifier of the attestation.
+    bytes32 schema; // The unique identifier of the schema.
+    uint64 time; // The time when the attestation was created (Unix timestamp).
+    uint64 expirationTime; // The time when the attestation expires (Unix timestamp).
+    uint64 revocationTime; // The time when the attestation was revoked (Unix timestamp).
+    bytes32 refUID; // The UID of the related attestation.
+    address recipient; // The recipient of the attestation.
+    address attester; // The attester/sender of the attestation.
+    bool revocable; // Whether the attestation is revocable.
+    bytes data; // Custom attestation data.
+}
+
+// Maximum upgrade forward-compatibility storage gap.
+uint32 constant MAX_GAP = 50;
+
+/**
+ * @dev A helper function to work with unchecked iterators in loops.
+ *
+ * @param i The index to increment.
+ *
+ * @return j The incremented index.
+ */
+function uncheckedInc(uint256 i) pure returns (uint256 j) {
+    unchecked {
+        j = i + 1;
+    }
+}
+
+/**
+ * @dev A helper function that converts a string to a bytes32.
+ *
+ * @param str The string to convert.
+ *
+ * @return The converted bytes32.
+ */
+function stringToBytes32(string memory str) pure returns (bytes32) {
+    bytes32 result;
+
+    assembly {
+        result := mload(add(str, 32))
+    }
+
+    return result;
+}
+
+/**
+ * @dev A helper function that converts a bytes32 to a string.
+ *
+ * @param data The bytes32 data to convert.
+ *
+ * @return The converted string.
+ */
+function bytes32ToString(bytes32 data) pure returns (string memory) {
+    bytes memory byteArray = new bytes(32);
+
+    uint256 length = 0;
+    for (uint256 i = 0; i < 32; i = uncheckedInc(i)) {
+        bytes1 char = data[i];
+        if (char == 0x00) {
+            break;
+        }
+
+        byteArray[length] = char;
+        length = uncheckedInc(length);
+    }
+
+    bytes memory terminatedBytes = new bytes(length);
+    for (uint256 j = 0; j < length; j = uncheckedInc(j)) {
+        terminatedBytes[j] = byteArray[j];
+    }
+
+    return string(terminatedBytes);
+}

packages/contracts-bedrock/contracts/EAS/EAS.sol

+// SPDX-License-Identifier: MIT
+
+pragma solidity 0.8.19;
+
+import { Address } from "@openzeppelin/contracts/utils/Address.sol";
+
+import { Semver } from "../universal/Semver.sol";
+import { Predeploys } from "../libraries/Predeploys.sol";
+
+import { EIP712Verifier } from "./eip712/EIP712Verifier.sol";
+
+import { ISchemaResolver } from "./resolver/ISchemaResolver.sol";
+
+// prettier-ignore
+import {
+    AccessDenied,
+    EMPTY_UID,
+    EIP712Signature,
+    InvalidLength,
+    MAX_GAP,
+    NotFound,
+    NO_EXPIRATION_TIME,
+    uncheckedInc
+} from "./Common.sol";
+
+// prettier-ignore
+import {
+    Attestation,
+    AttestationRequest,
+    AttestationRequestData,
+    DelegatedAttestationRequest,
+    DelegatedRevocationRequest,
+    IEAS,
+    MultiAttestationRequest,
+    MultiDelegatedAttestationRequest,
+    MultiDelegatedRevocationRequest,
+    MultiRevocationRequest,
+    RevocationRequest,
+    RevocationRequestData
+} from "./IEAS.sol";
+
+import { ISchemaRegistry, SchemaRecord } from "./ISchemaRegistry.sol";
+
+struct AttestationsResult {
+    uint256 usedValue; // Total ETH amount that was sent to resolvers.
+    bytes32[] uids; // UIDs of the new attestations.
+}
+
+/// @custom:proxied
+/// @custom:predeploy 0x4200000000000000000000000000000000000021
+/// @title EAS
+/// @notice The Ethereum Attestation Service protocol.
+contract EAS is IEAS, Semver, EIP712Verifier {
+    using Address for address payable;
+
+    error AlreadyRevoked();
+    error AlreadyRevokedOffchain();
+    error AlreadyTimestamped();
+    error InsufficientValue();
+    error InvalidAttestation();
+    error InvalidAttestations();
+    error InvalidExpirationTime();
+    error InvalidOffset();
+    error InvalidRegistry();
+    error InvalidRevocation();
+    error InvalidRevocations();
+    error InvalidSchema();
+    error InvalidVerifier();
+    error Irrevocable();
+    error NotPayable();
+    error WrongSchema();
+
+    // The global schema registry.
+    ISchemaRegistry private constant _schemaRegistry = ISchemaRegistry(Predeploys.SCHEMA_REGISTRY);
+
+    // The global mapping between attestations and their UIDs.
+    mapping(bytes32 uid => Attestation attestation) private _db;
+
+    // The global mapping between data and their timestamps.
+    mapping(bytes32 data => uint64 timestamp) private _timestamps;
+
+    // The global mapping between data and their revocation timestamps.
+    mapping(address revoker => mapping(bytes32 data => uint64 timestamp)) private _revocationsOffchain;
+
+    // Upgrade forward-compatibility storage gap
+    uint256[MAX_GAP - 3] private __gap;
+
+    /**
+     * @dev Creates a new EAS instance.
+     */
+    constructor() Semver(1, 0, 0) EIP712Verifier("EAS", "1.0.0") {
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function getSchemaRegistry() external pure returns (ISchemaRegistry) {
+        return _schemaRegistry;
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function attest(AttestationRequest calldata request) external payable returns (bytes32) {
+        AttestationRequestData[] memory requests = new AttestationRequestData[](1);
+        requests[0] = request.data;
+
+        return _attest(request.schema, requests, msg.sender, msg.value, true).uids[0];
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function attestByDelegation(
+        DelegatedAttestationRequest calldata delegatedRequest
+    ) external payable returns (bytes32) {
+        _verifyAttest(delegatedRequest);
+
+        AttestationRequestData[] memory data = new AttestationRequestData[](1);
+        data[0] = delegatedRequest.data;
+
+        return _attest(delegatedRequest.schema, data, delegatedRequest.attester, msg.value, true).uids[0];
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function multiAttest(MultiAttestationRequest[] calldata multiRequests) external payable returns (bytes32[] memory) {
+        // Since a multi-attest call is going to make multiple attestations for multiple schemas, we'd need to collect
+        // all the returned UIDs into a single list.
+        bytes32[][] memory totalUids = new bytes32[][](multiRequests.length);
+        uint256 totalUidsCount = 0;
+
+        // We are keeping track of the total available ETH amount that can be sent to resolvers and will keep deducting
+        // from it to verify that there isn't any attempt to send too much ETH to resolvers. Please note that unless
+        // some ETH was stuck in the contract by accident (which shouldn't happen in normal conditions), it won't be
+        // possible to send too much ETH anyway.
+        uint availableValue = msg.value;
+
+        for (uint256 i = 0; i < multiRequests.length; i = uncheckedInc(i)) {
+            // The last batch is handled slightly differently: if the total available ETH wasn't spent in full and there
+            // is a remainder - it will be refunded back to the attester (something that we can only verify during the
+            // last and final batch).
+            bool last;
+            unchecked {
+                last = i == multiRequests.length - 1;
+            }
+
+            // Process the current batch of attestations.
+            MultiAttestationRequest calldata multiRequest = multiRequests[i];
+            AttestationsResult memory res = _attest(
+                multiRequest.schema,
+                multiRequest.data,
+                msg.sender,
+                availableValue,
+                last
+            );
+
+            // Ensure to deduct the ETH that was forwarded to the resolver during the processing of this batch.
+            availableValue -= res.usedValue;
+
+            // Collect UIDs (and merge them later).
+            totalUids[i] = res.uids;
+            unchecked {
+                totalUidsCount += res.uids.length;
+            }
+        }
+
+        // Merge all the collected UIDs and return them as a flatten array.
+        return _mergeUIDs(totalUids, totalUidsCount);
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function multiAttestByDelegation(
+        MultiDelegatedAttestationRequest[] calldata multiDelegatedRequests
+    ) external payable returns (bytes32[] memory) {
+        // Since a multi-attest call is going to make multiple attestations for multiple schemas, we'd need to collect
+        // all the returned UIDs into a single list.
+        bytes32[][] memory totalUids = new bytes32[][](multiDelegatedRequests.length);
+        uint256 totalUidsCount = 0;
+
+        // We are keeping track of the total available ETH amount that can be sent to resolvers and will keep deducting
+        // from it to verify that there isn't any attempt to send too much ETH to resolvers. Please note that unless
+        // some ETH was stuck in the contract by accident (which shouldn't happen in normal conditions), it won't be
+        // possible to send too much ETH anyway.
+        uint availableValue = msg.value;
+
+        for (uint256 i = 0; i < multiDelegatedRequests.length; i = uncheckedInc(i)) {
+            // The last batch is handled slightly differently: if the total available ETH wasn't spent in full and there
+            // is a remainder - it will be refunded back to the attester (something that we can only verify during the
+            // last and final batch).
+            bool last;
+            unchecked {
+                last = i == multiDelegatedRequests.length - 1;
+            }
+
+            MultiDelegatedAttestationRequest calldata multiDelegatedRequest = multiDelegatedRequests[i];
+            AttestationRequestData[] calldata data = multiDelegatedRequest.data;
+
+            // Ensure that no inputs are missing.
+            if (data.length == 0 || data.length != multiDelegatedRequest.signatures.length) {
+                revert InvalidLength();
+            }
+
+            // Verify EIP712 signatures. Please note that the signatures are assumed to be signed with increasing nonces.
+            for (uint256 j = 0; j < data.length; j = uncheckedInc(j)) {
+                _verifyAttest(
+                    DelegatedAttestationRequest({
+                        schema: multiDelegatedRequest.schema,
+                        data: data[j],
+                        signature: multiDelegatedRequest.signatures[j],
+                        attester: multiDelegatedRequest.attester
+                    })
+                );
+            }
+
+            // Process the current batch of attestations.
+            AttestationsResult memory res = _attest(
+                multiDelegatedRequest.schema,
+                data,
+                multiDelegatedRequest.attester,
+                availableValue,
+                last
+            );
+
+            // Ensure to deduct the ETH that was forwarded to the resolver during the processing of this batch.
+            availableValue -= res.usedValue;
+
+            // Collect UIDs (and merge them later).
+            totalUids[i] = res.uids;
+            unchecked {
+                totalUidsCount += res.uids.length;
+            }
+        }
+
+        // Merge all the collected UIDs and return them as a flatten array.
+        return _mergeUIDs(totalUids, totalUidsCount);
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function revoke(RevocationRequest calldata request) external payable {
+        RevocationRequestData[] memory requests = new RevocationRequestData[](1);
+        requests[0] = request.data;
+
+        _revoke(request.schema, requests, msg.sender, msg.value, true);
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function revokeByDelegation(DelegatedRevocationRequest calldata delegatedRequest) external payable {
+        _verifyRevoke(delegatedRequest);
+
+        RevocationRequestData[] memory data = new RevocationRequestData[](1);
+        data[0] = delegatedRequest.data;
+
+        _revoke(delegatedRequest.schema, data, delegatedRequest.revoker, msg.value, true);
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function multiRevoke(MultiRevocationRequest[] calldata multiRequests) external payable {
+        // We are keeping track of the total available ETH amount that can be sent to resolvers and will keep deducting
+        // from it to verify that there isn't any attempt to send too much ETH to resolvers. Please note that unless
+        // some ETH was stuck in the contract by accident (which shouldn't happen in normal conditions), it won't be
+        // possible to send too much ETH anyway.
+        uint availableValue = msg.value;
+
+        for (uint256 i = 0; i < multiRequests.length; i = uncheckedInc(i)) {
+            // The last batch is handled slightly differently: if the total available ETH wasn't spent in full and there
+            // is a remainder - it will be refunded back to the attester (something that we can only verify during the
+            // last and final batch).
+            bool last;
+            unchecked {
+                last = i == multiRequests.length - 1;
+            }
+
+            MultiRevocationRequest calldata multiRequest = multiRequests[i];
+
+            // Ensure to deduct the ETH that was forwarded to the resolver during the processing of this batch.
+            availableValue -= _revoke(multiRequest.schema, multiRequest.data, msg.sender, availableValue, last);
+        }
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function multiRevokeByDelegation(
+        MultiDelegatedRevocationRequest[] calldata multiDelegatedRequests
+    ) external payable {
+        // We are keeping track of the total available ETH amount that can be sent to resolvers and will keep deducting
+        // from it to verify that there isn't any attempt to send too much ETH to resolvers. Please note that unless
+        // some ETH was stuck in the contract by accident (which shouldn't happen in normal conditions), it won't be
+        // possible to send too much ETH anyway.
+        uint availableValue = msg.value;
+
+        for (uint256 i = 0; i < multiDelegatedRequests.length; i = uncheckedInc(i)) {
+            // The last batch is handled slightly differently: if the total available ETH wasn't spent in full and there
+            // is a remainder - it will be refunded back to the attester (something that we can only verify during the
+            // last and final batch).
+            bool last;
+            unchecked {
+                last = i == multiDelegatedRequests.length - 1;
+            }
+
+            MultiDelegatedRevocationRequest memory multiDelegatedRequest = multiDelegatedRequests[i];
+            RevocationRequestData[] memory data = multiDelegatedRequest.data;
+
+            // Ensure that no inputs are missing.
+            if (data.length == 0 || data.length != multiDelegatedRequest.signatures.length) {
+                revert InvalidLength();
+            }
+
+            // Verify EIP712 signatures. Please note that the signatures are assumed to be signed with increasing nonces.
+            for (uint256 j = 0; j < data.length; j = uncheckedInc(j)) {
+                _verifyRevoke(
+                    DelegatedRevocationRequest({
+                        schema: multiDelegatedRequest.schema,
+                        data: data[j],
+                        signature: multiDelegatedRequest.signatures[j],
+                        revoker: multiDelegatedRequest.revoker
+                    })
+                );
+            }
+
+            // Ensure to deduct the ETH that was forwarded to the resolver during the processing of this batch.
+            availableValue -= _revoke(
+                multiDelegatedRequest.schema,
+                data,
+                multiDelegatedRequest.revoker,
+                availableValue,
+                last
+            );
+        }
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function timestamp(bytes32 data) external returns (uint64) {
+        uint64 time = _time();
+
+        _timestamp(data, time);
+
+        return time;
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function revokeOffchain(bytes32 data) external returns (uint64) {
+        uint64 time = _time();
+
+        _revokeOffchain(msg.sender, data, time);
+
+        return time;
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function multiRevokeOffchain(bytes32[] calldata data) external returns (uint64) {
+        uint64 time = _time();
+
+        uint256 length = data.length;
+        for (uint256 i = 0; i < length; i = uncheckedInc(i)) {
+            _revokeOffchain(msg.sender, data[i], time);
+        }
+
+        return time;
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function multiTimestamp(bytes32[] calldata data) external returns (uint64) {
+        uint64 time = _time();
+
+        uint256 length = data.length;
+        for (uint256 i = 0; i < length; i = uncheckedInc(i)) {
+            _timestamp(data[i], time);
+        }
+
+        return time;
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function getAttestation(bytes32 uid) external view returns (Attestation memory) {
+        return _db[uid];
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function isAttestationValid(bytes32 uid) public view returns (bool) {
+        return _db[uid].uid != 0;
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function getTimestamp(bytes32 data) external view returns (uint64) {
+        return _timestamps[data];
+    }
+
+    /**
+     * @inheritdoc IEAS
+     */
+    function getRevokeOffchain(address revoker, bytes32 data) external view returns (uint64) {
+        return _revocationsOffchain[revoker][data];
+    }
+
+    /**
+     * @dev Attests to a specific schema.
+     *
+     * @param schema // the unique identifier of the schema to attest to.
+     * @param data The arguments of the attestation requests.
+     * @param attester The attesting account.
+     * @param availableValue The total available ETH amount that can be sent to the resolver.
+     * @param last Whether this is the last attestations/revocations set.
+     *
+     * @return The UID of the new attestations and the total sent ETH amount.
+     */
+    function _attest(
+        bytes32 schema,
+        AttestationRequestData[] memory data,
+        address attester,
+        uint256 availableValue,
+        bool last
+    ) private returns (AttestationsResult memory) {
+        uint256 length = data.length;
+
+        AttestationsResult memory res;
+        res.uids = new bytes32[](length);
+
+        // Ensure that we aren't attempting to attest to a non-existing schema.
+        SchemaRecord memory schemaRecord = _schemaRegistry.getSchema(schema);
+        if (schemaRecord.uid == EMPTY_UID) {
+            revert InvalidSchema();
+        }
+
+        Attestation[] memory attestations = new Attestation[](length);
+        uint256[] memory values = new uint256[](length);
+
+        for (uint256 i = 0; i < length; i = uncheckedInc(i)) {
+            AttestationRequestData memory request = data[i];
+
+            // Ensure that either no expiration time was set or that it was set in the future.
+            if (request.expirationTime != NO_EXPIRATION_TIME && request.expirationTime <= _time()) {
+                revert InvalidExpirationTime();
+            }
+
+            // Ensure that we aren't trying to make a revocable attestation for a non-revocable schema.
+            if (!schemaRecord.revocable && request.revocable) {
+                revert Irrevocable();
+            }
+
+            Attestation memory attestation = Attestation({
+                uid: EMPTY_UID,
+                schema: schema,
+                refUID: request.refUID,
+                time: _time(),
+                expirationTime: request.expirationTime,
+                revocationTime: 0,
+                recipient: request.recipient,
+                attester: attester,
+                revocable: request.revocable,
+                data: request.data
+            });
+
+            // Look for the first non-existing UID (and use a bump seed/nonce in the rare case of a conflict).
+            bytes32 uid;
+            uint32 bump = 0;
+            while (true) {
+                uid = _getUID(attestation, bump);
+                if (_db[uid].uid == EMPTY_UID) {
+                    break;
+                }
+
+                unchecked {
+                    ++bump;
+                }
+            }
+            attestation.uid = uid;
+
+            _db[uid] = attestation;
+
+            if (request.refUID != 0) {
+                // Ensure that we aren't trying to attest to a non-existing referenced UID.
+                if (!isAttestationValid(request.refUID)) {
+                    revert NotFound();
+                }
+            }
+
+            attestations[i] = attestation;
+            values[i] = request.value;
+
+            res.uids[i] = uid;
+
+            emit Attested(request.recipient, attester, uid, schema);
+        }
+
+        res.usedValue = _resolveAttestations(schemaRecord, attestations, values, false, availableValue, last);
+
+        return res;
+    }
+
+    /**
+     * @dev Revokes an existing attestation to a specific schema.
+     *
+     * @param schema The unique identifier of the schema to attest to.
+     * @param data The arguments of the revocation requests.
+     * @param revoker The revoking account.
+     * @param availableValue The total available ETH amount that can be sent to the resolver.
+     * @param last Whether this is the last attestations/revocations set.
+     *
+     * @return Returns the total sent ETH amount.
+     */
+    function _revoke(
+        bytes32 schema,
+        RevocationRequestData[] memory data,
+        address revoker,
+        uint256 availableValue,
+        bool last
+    ) private returns (uint256) {
+        // Ensure that a non-existing schema ID wasn't passed by accident.
+        SchemaRecord memory schemaRecord = _schemaRegistry.getSchema(schema);
+        if (schemaRecord.uid == EMPTY_UID) {
+            revert InvalidSchema();
+        }
+
+        uint256 length = data.length;
+        Attestation[] memory attestations = new Attestation[](length);
+        uint256[] memory values = new uint256[](length);
+
+        for (uint256 i = 0; i < length; i = uncheckedInc(i)) {
+            RevocationRequestData memory request = data[i];
+
+            Attestation storage attestation = _db[request.uid];
+
+            // Ensure that we aren't attempting to revoke a non-existing attestation.
+            if (attestation.uid == EMPTY_UID) {
+                revert NotFound();
+            }
+
+            // Ensure that a wrong schema ID wasn't passed by accident.
+            if (attestation.schema != schema) {
+                revert InvalidSchema();
+            }
+
+            // Allow only original attesters to revoke their attestations.
+            if (attestation.attester != revoker) {
+                revert AccessDenied();
+            }
+
+            // Please note that also checking of the schema itself is revocable is unnecessary, since it's not possible to
+            // make revocable attestations to an irrevocable schema.
+            if (!attestation.revocable) {
+                revert Irrevocable();
+            }
+
+            // Ensure that we aren't trying to revoke the same attestation twice.
+            if (attestation.revocationTime != 0) {
+                revert AlreadyRevoked();
+            }
+            attestation.revocationTime = _time();
+
+            attestations[i] = attestation;
+            values[i] = request.value;
+
+            emit Revoked(attestation.recipient, revoker, request.uid, attestation.schema);
+        }
+
+        return _resolveAttestations(schemaRecord, attestations, values, true, availableValue, last);
+    }
+
+    /**
+     * @dev Resolves a new attestation or a revocation of an existing attestation.
+     *
+     * @param schemaRecord The schema of the attestation.
+     * @param attestation The data of the attestation to make/revoke.
+     * @param value An explicit ETH amount to send to the resolver.
+     * @param isRevocation Whether to resolve an attestation or its revocation.
+     * @param availableValue The total available ETH amount that can be sent to the resolver.
+     * @param last Whether this is the last attestations/revocations set.
+     *
+     * @return Returns the total sent ETH amount.
+     */
+    function _resolveAttestation(
+        SchemaRecord memory schemaRecord,
+        Attestation memory attestation,
+        uint256 value,
+        bool isRevocation,
+        uint256 availableValue,
+        bool last
+    ) private returns (uint256) {
+        ISchemaResolver resolver = schemaRecord.resolver;
+        if (address(resolver) == address(0)) {
+            // Ensure that we don't accept payments if there is no resolver.
+            if (value != 0) {
+                revert NotPayable();
+            }
+
+            return 0;
+        }
+
+        // Ensure that we don't accept payments which can't be forwarded to the resolver.
+        if (value != 0 && !resolver.isPayable()) {
+            revert NotPayable();
+        }
+
+        // Ensure that the attester/revoker doesn't try to spend more than available.
+        if (value > availableValue) {
+            revert InsufficientValue();
+        }
+
+        // Ensure to deduct the sent value explicitly.
+        unchecked {
+            availableValue -= value;
+        }
+
+        if (isRevocation) {
+            if (!resolver.revoke{ value: value }(attestation)) {
+                revert InvalidRevocation();
+            }
+        } else if (!resolver.attest{ value: value }(attestation)) {
+            revert InvalidAttestation();
+        }
+
+        if (last) {
+            _refund(availableValue);
+        }
+
+        return value;
+    }
+
+    /**
+     * @dev Resolves multiple attestations or revocations of existing attestations.
+     *
+     * @param schemaRecord The schema of the attestation.
+     * @param attestations The data of the attestations to make/revoke.
+     * @param values Explicit ETH amounts to send to the resolver.
+     * @param isRevocation Whether to resolve an attestation or its revocation.
+     * @param availableValue The total available ETH amount that can be sent to the resolver.
+     * @param last Whether this is the last attestations/revocations set.
+     *
+     * @return Returns the total sent ETH amount.
+     */
+    function _resolveAttestations(
+        SchemaRecord memory schemaRecord,
+        Attestation[] memory attestations,
+        uint256[] memory values,
+        bool isRevocation,
+        uint256 availableValue,
+        bool last
+    ) private returns (uint256) {
+        uint256 length = attestations.length;
+        if (length == 1) {
+            return _resolveAttestation(schemaRecord, attestations[0], values[0], isRevocation, availableValue, last);
+        }
+
+        ISchemaResolver resolver = schemaRecord.resolver;
+        if (address(resolver) == address(0)) {
+            // Ensure that we don't accept payments if there is no resolver.
+            for (uint256 i = 0; i < length; i = uncheckedInc(i)) {
+                if (values[i] != 0) {
+                    revert NotPayable();
+                }
+            }
+
+            return 0;
+        }
+
+        uint256 totalUsedValue = 0;
+
+        for (uint256 i = 0; i < length; i = uncheckedInc(i)) {
+            uint256 value = values[i];
+
+            // Ensure that we don't accept payments which can't be forwarded to the resolver.
+            if (value != 0 && !resolver.isPayable()) {
+                revert NotPayable();
+            }
+
+            // Ensure that the attester/revoker doesn't try to spend more than available.
+            if (value > availableValue) {
+                revert InsufficientValue();
+            }
+
+            // Ensure to deduct the sent value explicitly and add it to the total used value by the batch.
+            unchecked {
+                availableValue -= value;
+                totalUsedValue += value;
+            }
+        }
+
+        if (isRevocation) {
+            if (!resolver.multiRevoke{ value: totalUsedValue }(attestations, values)) {
+                revert InvalidRevocations();
+            }
+        } else if (!resolver.multiAttest{ value: totalUsedValue }(attestations, values)) {
+            revert InvalidAttestations();
+        }
+
+        if (last) {
+            _refund(availableValue);
+        }
+
+        return totalUsedValue;
+    }
+
+    /**
+     * @dev Calculates a UID for a given attestation.
+     *
+     * @param attestation The input attestation.
+     * @param bump A bump value to use in case of a UID conflict.
+     *
+     * @return Attestation UID.
+     */
+    function _getUID(Attestation memory attestation, uint32 bump) private pure returns (bytes32) {
+        return
+            keccak256(
+                abi.encodePacked(
+                    attestation.schema,
+                    attestation.recipient,
+                    attestation.attester,
+                    attestation.time,
+                    attestation.expirationTime,
+                    attestation.revocable,
+                    attestation.refUID,
+                    attestation.data,
+                    bump
+                )
+            );
+    }
+
+    /**
+     * @dev Refunds remaining ETH amount to the attester.
+     *
+     * @param remainingValue The remaining ETH amount that was not sent to the resolver.
+     */
+    function _refund(uint256 remainingValue) private {
+        if (remainingValue > 0) {
+            // Using a regular transfer here might revert, for some non-EOA attesters, due to exceeding of the 2300
+            // gas limit which is why we're using call instead (via sendValue), which the 2300 gas limit does not
+            // apply for.
+            payable(msg.sender).sendValue(remainingValue);
+        }
+    }
+
+    /**
+     * @dev Timestamps the specified bytes32 data.
+     *
+     * @param data The data to timestamp.
+     * @param time The timestamp.
+     */
+    function _timestamp(bytes32 data, uint64 time) private {
+        if (_timestamps[data] != 0) {
+            revert AlreadyTimestamped();
+        }
+
+        _timestamps[data] = time;
+
+        emit Timestamped(data, time);
+    }
+
+    /**
+     * @dev Timestamps the specified bytes32 data.
+     *
+     * @param data The data to timestamp.
+     * @param time The timestamp.
+     */
+    function _revokeOffchain(address revoker, bytes32 data, uint64 time) private {
+        mapping(bytes32 => uint64) storage revocations = _revocationsOffchain[revoker];
+
+        if (revocations[data] != 0) {
+            revert AlreadyRevokedOffchain();
+        }
+
+        revocations[data] = time;
+
+        emit RevokedOffchain(revoker, data, time);
+    }
+
+    /**
+     * @dev Returns the current's block timestamp. This method is overridden during tests and used to simulate the
+     * current block time.
+     */
+    function _time() internal view virtual returns (uint64) {
+        return uint64(block.timestamp);
+    }
+
+    /**
+     * @dev Merges lists of UIDs.
+     *
+     * @param uidLists The provided lists of UIDs.
+     * @param uidsCount Total UIDs count.
+     *
+     * @return A merged and flatten list of all the UIDs.
+     */
+    function _mergeUIDs(bytes32[][] memory uidLists, uint256 uidsCount) private pure returns (bytes32[] memory) {
+        bytes32[] memory uids = new bytes32[](uidsCount);
+
+        uint256 currentIndex = 0;
+        for (uint256 i = 0; i < uidLists.length; i = uncheckedInc(i)) {
+            bytes32[] memory currentUids = uidLists[i];
+            for (uint256 j = 0; j < currentUids.length; j = uncheckedInc(j)) {
+                uids[currentIndex] = currentUids[j];
+
+                unchecked {
+                    ++currentIndex;
+                }
+            }
+        }
+
+        return uids;
+    }
+}

packages/contracts-bedrock/contracts/EAS/IEAS.sol

+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.0;
+
+import { ISchemaRegistry } from "./ISchemaRegistry.sol";
+import { Attestation, EIP712Signature } from "./Common.sol";
+
+/**
+ * @dev A struct representing the arguments of the attestation request.
+ */
+struct AttestationRequestData {
+    address recipient; // The recipient of the attestation.
+    uint64 expirationTime; // The time when the attestation expires (Unix timestamp).
+    bool revocable; // Whether the attestation is revocable.
+    bytes32 refUID; // The UID of the related attestation.
+    bytes data; // Custom attestation data.
+    uint256 value; // An explicit ETH amount to send to the resolver. This is important to prevent accidental user errors.
+}
+
+/**
+ * @dev A struct representing the full arguments of the attestation request.
+ */
+struct AttestationRequest {
+    bytes32 schema; // The unique identifier of the schema.
+    AttestationRequestData data; // The arguments of the attestation request.
+}
+
+/**
+ * @dev A struct representing the full arguments of the full delegated attestation request.
+ */
+struct DelegatedAttestationRequest {
+    bytes32 schema; // The unique identifier of the schema.
+    AttestationRequestData data; // The arguments of the attestation request.
+    EIP712Signature signature; // The EIP712 signature data.
+    address attester; // The attesting account.
+}
+
+/**
+ * @dev A struct representing the full arguments of the multi attestation request.
+ */
+struct MultiAttestationRequest {
+    bytes32 schema; // The unique identifier of the schema.
+    AttestationRequestData[] data; // The arguments of the attestation request.
+}
+
+/**
+ * @dev A struct representing the full arguments of the delegated multi attestation request.
+ */
+struct MultiDelegatedAttestationRequest {
+    bytes32 schema; // The unique identifier of the schema.
+    AttestationRequestData[] data; // The arguments of the attestation requests.
+    EIP712Signature[] signatures; // The EIP712 signatures data. Please note that the signatures are assumed to be signed with increasing nonces.
+    address attester; // The attesting account.
+}
+
+/**
+ * @dev A struct representing the arguments of the revocation request.
+ */
+struct RevocationRequestData {
+    bytes32 uid; // The UID of the attestation to revoke.
+    uint256 value; // An explicit ETH amount to send to the resolver. This is important to prevent accidental user errors.
+}
+
+/**
+ * @dev A struct representing the full arguments of the revocation request.
+ */
+struct RevocationRequest {
+    bytes32 schema; // The unique identifier of the schema.
+    RevocationRequestData data; // The arguments of the revocation request.
+}
+
+/**
+ * @dev A struct representing the arguments of the full delegated revocation request.
+ */
+struct DelegatedRevocationRequest {
+    bytes32 schema; // The unique identifier of the schema.
+    RevocationRequestData data; // The arguments of the revocation request.
+    EIP712Signature signature; // The EIP712 signature data.
+    address revoker; // The revoking account.
+}
+
+/**
+ * @dev A struct representing the full arguments of the multi revocation request.
+ */
+struct MultiRevocationRequest {
+    bytes32 schema; // The unique identifier of the schema.
+    RevocationRequestData[] data; // The arguments of the revocation request.
+}
+
+/**
+ * @dev A struct representing the full arguments of the delegated multi revocation request.
+ */
+struct MultiDelegatedRevocationRequest {
+    bytes32 schema; // The unique identifier of the schema.
+    RevocationRequestData[] data; // The arguments of the revocation requests.
+    EIP712Signature[] signatures; // The EIP712 signatures data. Please note that the signatures are assumed to be signed with increasing nonces.
+    address revoker; // The revoking account.
+}
+
+/// @title IEAS
+/// @notice The Ethereum Attestation Service interface.
+interface IEAS {
+    /**
+     * @dev Emitted when an attestation has been made.
+     *
+     * @param recipient The recipient of the attestation.
+     * @param attester The attesting account.
+     * @param uid The UID the revoked attestation.
+     * @param schema The UID of the schema.
+     */
+    event Attested(address indexed recipient, address indexed attester, bytes32 uid, bytes32 indexed schema);
+
+    /**
+     * @dev Emitted when an attestation has been revoked.
+     *
+     * @param recipient The recipient of the attestation.
+     * @param attester The attesting account.
+     * @param schema The UID of the schema.
+     * @param uid The UID the revoked attestation.
+     */
+    event Revoked(address indexed recipient, address indexed attester, bytes32 uid, bytes32 indexed schema);
+
+    /**
+     * @dev Emitted when a data has been timestamped.
+     *
+     * @param data The data.
+     * @param timestamp The timestamp.
+     */
+    event Timestamped(bytes32 indexed data, uint64 indexed timestamp);
+
+    /**
+     * @dev Emitted when a data has been revoked.
+     *
+     * @param revoker The address of the revoker.
+     * @param data The data.
+     * @param timestamp The timestamp.
+     */
+    event RevokedOffchain(address indexed revoker, bytes32 indexed data, uint64 indexed timestamp);
+
+    /**
+     * @dev Returns the address of the global schema registry.
+     *
+     * @return The address of the global schema registry.
+     */
+    function getSchemaRegistry() external view returns (ISchemaRegistry);
+
+    /**
+     * @dev Attests to a specific schema.
+     *
+     * @param request The arguments of the attestation request.
+     *
+     * Example:
+     *
+     * attest({
+     *     schema: "0facc36681cbe2456019c1b0d1e7bedd6d1d40f6f324bf3dd3a4cef2999200a0",
+     *     data: {
+     *         recipient: "0xdEADBeAFdeAdbEafdeadbeafDeAdbEAFdeadbeaf",
+     *         expirationTime: 0,
+     *         revocable: true,
+     *         refUID: "0x0000000000000000000000000000000000000000000000000000000000000000",
+     *         data: "0xF00D",
+     *         value: 0
+     *     }
+     * })
+     *
+     * @return The UID of the new attestation.
+     */
+    function attest(AttestationRequest calldata request) external payable returns (bytes32);
+
+    /**
+     * @dev Attests to a specific schema via the provided EIP712 signature.
+     *
+     * @param delegatedRequest The arguments of the delegated attestation request.
+     *
+     * Example:
+     *
+     * attestByDelegation({
+     *     schema: '0x8e72f5bc0a8d4be6aa98360baa889040c50a0e51f32dbf0baa5199bd93472ebc',
+     *     data: {
+     *         recipient: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266',
+     *         expirationTime: 1673891048,
+     *         revocable: true,
+     *         refUID: '0x0000000000000000000000000000000000000000000000000000000000000000',
+     *         data: '0x1234',
+     *         value: 0
+     *     },
+     *     signature: {
+     *         v: 28,
+     *         r: '0x148c...b25b',
+     *         s: '0x5a72...be22'
+     *     },
+     *     attester: '0xc5E8740aD971409492b1A63Db8d83025e0Fc427e'
+     * })
+     *
+     * @return The UID of the new attestation.
+     */
+    function attestByDelegation(
+        DelegatedAttestationRequest calldata delegatedRequest
+    ) external payable returns (bytes32);
+
+    /**
+     * @dev Attests to multiple schemas.
+     *
+     * @param multiRequests The arguments of the multi attestation requests. The requests should be grouped by distinct
+     * schema ids to benefit from the best batching optimization.
+     *
+     * Example:
+     *
+     * multiAttest([{
+     *     schema: '0x33e9094830a5cba5554d1954310e4fbed2ef5f859ec1404619adea4207f391fd',
+     *     data: [{
+     *         recipient: '0xdEADBeAFdeAdbEafdeadbeafDeAdbEAFdeadbeaf',
+     *         expirationTime: 1673891048,
+     *         revocable: true,
+     *         refUID: '0x0000000000000000000000000000000000000000000000000000000000000000',
+     *         data: '0x1234',
+     *         value: 1000
+     *     },
+     *     {
+     *         recipient: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266',
+     *         expirationTime: 0,
+     *         revocable: false,
+     *         refUID: '0x480df4a039efc31b11bfdf491b383ca138b6bde160988222a2a3509c02cee174',
+     *         data: '0x00',
+     *         value: 0
+     *     }],
+     * },
+     * {
+     *     schema: '0x5ac273ce41e3c8bfa383efe7c03e54c5f0bff29c9f11ef6ffa930fc84ca32425',
+     *     data: [{
+     *         recipient: '0xdEADBeAFdeAdbEafdeadbeafDeAdbEAFdeadbeaf',
+     *         expirationTime: 0,
+     *         revocable: true,
+     *         refUID: '0x75bf2ed8dca25a8190c50c52db136664de25b2449535839008ccfdab469b214f',
+     *         data: '0x12345678',
+     *         value: 0
+     *     },
+     * }])
+     *
+     * @return The UIDs of the new attestations.
+     */
+    function multiAttest(MultiAttestationRequest[] calldata multiRequests) external payable returns (bytes32[] memory);
+
+    /**
+     * @dev Attests to multiple schemas using via provided EIP712 signatures.
+     *
+     * @param multiDelegatedRequests The arguments of the delegated multi attestation requests. The requests should be
+     * grouped by distinct schema ids to benefit from the best batching optimization.
+     *
+     * Example:
+     *
+     * multiAttestByDelegation([{
+     *     schema: '0x8e72f5bc0a8d4be6aa98360baa889040c50a0e51f32dbf0baa5199bd93472ebc',
+     *     data: [{
+     *         recipient: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266',
+     *         expirationTime: 1673891048,
+     *         revocable: true,
+     *         refUID: '0x0000000000000000000000000000000000000000000000000000000000000000',
+     *         data: '0x1234',
+     *         value: 0
+     *     },
+     *     {
+     *         recipient: '0xdEADBeAFdeAdbEafdeadbeafDeAdbEAFdeadbeaf',
+     *         expirationTime: 0,
+     *         revocable: false,
+     *         refUID: '0x0000000000000000000000000000000000000000000000000000000000000000',
+     *         data: '0x00',
+     *         value: 0
+     *     }],
+     *     signatures: [{
+     *         v: 28,
+     *         r: '0x148c...b25b',
+     *         s: '0x5a72...be22'
+     *     },
+     *     {
+     *         v: 28,
+     *         r: '0x487s...67bb',
+     *         s: '0x12ad...2366'
+     *     }],
+     *     attester: '0x1D86495b2A7B524D747d2839b3C645Bed32e8CF4'
+     * }])
+     *
+     * @return The UIDs of the new attestations.
+     */
+    function multiAttestByDelegation(
+        MultiDelegatedAttestationRequest[] calldata multiDelegatedRequests
+    ) external payable returns (bytes32[] memory);
+
+    /**
+     * @dev Revokes an existing attestation to a specific schema.
+     *
+     * Example:
+     *
+     * revoke({
+     *     schema: '0x8e72f5bc0a8d4be6aa98360baa889040c50a0e51f32dbf0baa5199bd93472ebc',
+     *     data: {
+     *         uid: '0x101032e487642ee04ee17049f99a70590c735b8614079fc9275f9dd57c00966d',
+     *         value: 0
+     *     }
+     * })
+     *
+     * @param request The arguments of the revocation request.
+     */
+    function revoke(RevocationRequest calldata request) external payable;
+
+    /**
+     * @dev Revokes an existing attestation to a specific schema via the provided EIP712 signature.
+     *
+     * Example:
+     *
+     * revokeByDelegation({
+     *     schema: '0x8e72f5bc0a8d4be6aa98360baa889040c50a0e51f32dbf0baa5199bd93472ebc',
+     *     data: {
+     *         uid: '0xcbbc12102578c642a0f7b34fe7111e41afa25683b6cd7b5a14caf90fa14d24ba',
+     *         value: 0
+     *     },
+     *     signature: {
+     *         v: 27,
+     *         r: '0xb593...7142',
+     *         s: '0x0f5b...2cce'
+     *     },
+     *     revoker: '0x244934dd3e31bE2c81f84ECf0b3E6329F5381992'
+     * })
+     *
+     * @param delegatedRequest The arguments of the delegated revocation request.
+     */
+    function revokeByDelegation(DelegatedRevocationRequest calldata delegatedRequest) external payable;
+
+    /**
+     * @dev Revokes existing attestations to multiple schemas.
+     *
+     * @param multiRequests The arguments of the multi revocation requests. The requests should be grouped by distinct
+     * schema ids to benefit from the best batching optimization.
+     *
+     * Example:
+     *
+     * multiRevoke([{
+     *     schema: '0x8e72f5bc0a8d4be6aa98360baa889040c50a0e51f32dbf0baa5199bd93472ebc',
+     *     data: [{
+     *         uid: '0x211296a1ca0d7f9f2cfebf0daaa575bea9b20e968d81aef4e743d699c6ac4b25',
+     *         value: 1000
+     *     },
+     *     {
+     *         uid: '0xe160ac1bd3606a287b4d53d5d1d6da5895f65b4b4bab6d93aaf5046e48167ade',
+     *         value: 0
+     *     }],
+     * },
+     * {
+     *     schema: '0x5ac273ce41e3c8bfa383efe7c03e54c5f0bff29c9f11ef6ffa930fc84ca32425',
+     *     data: [{
+     *         uid: '0x053d42abce1fd7c8fcddfae21845ad34dae287b2c326220b03ba241bc5a8f019',
+     *         value: 0
+     *     },
+     * }])
+     */
+    function multiRevoke(MultiRevocationRequest[] calldata multiRequests) external payable;
+
+    /**
+     * @dev Revokes existing attestations to multiple schemas via provided EIP712 signatures.
+     *
+     * @param multiDelegatedRequests The arguments of the delegated multi revocation attestation requests. The requests should be
+     * grouped by distinct schema ids to benefit from the best batching optimization.
+     *
+     * Example:
+     *
+     * multiRevokeByDelegation([{
+     *     schema: '0x8e72f5bc0a8d4be6aa98360baa889040c50a0e51f32dbf0baa5199bd93472ebc',
+     *     data: [{
+     *         uid: '0x211296a1ca0d7f9f2cfebf0daaa575bea9b20e968d81aef4e743d699c6ac4b25',
+     *         value: 1000
+     *     },
+     *     {
+     *         uid: '0xe160ac1bd3606a287b4d53d5d1d6da5895f65b4b4bab6d93aaf5046e48167ade',
+     *         value: 0
+     *     }],
+     *     signatures: [{
+     *         v: 28,
+     *         r: '0x148c...b25b',
+     *         s: '0x5a72...be22'
+     *     },
+     *     {
+     *         v: 28,
+     *         r: '0x487s...67bb',
+     *         s: '0x12ad...2366'
+     *     }],
+     *     revoker: '0x244934dd3e31bE2c81f84ECf0b3E6329F5381992'
+     * }])
+     *
+     */
+    function multiRevokeByDelegation(
+        MultiDelegatedRevocationRequest[] calldata multiDelegatedRequests
+    ) external payable;
+
+    /**
+     * @dev Timestamps the specified bytes32 data.
+     *
+     * @param data The data to timestamp.
+     *
+     * @return The timestamp the data was timestamped with.
+     */
+    function timestamp(bytes32 data) external returns (uint64);
+
+    /**
+     * @dev Timestamps the specified multiple bytes32 data.
+     *
+     * @param data The data to timestamp.
+     *
+     * @return The timestamp the data was timestamped with.
+     */
+    function multiTimestamp(bytes32[] calldata data) external returns (uint64);
+
+    /**
+     * @dev Revokes the specified bytes32 data.
+     *
+     * @param data The data to timestamp.
+     *
+     * @return The timestamp the data was revoked with.
+     */
+    function revokeOffchain(bytes32 data) external returns (uint64);
+
+    /**
+     * @dev Revokes the specified multiple bytes32 data.
+     *
+     * @param data The data to timestamp.
+     *
+     * @return The timestamp the data was revoked with.
+     */
+    function multiRevokeOffchain(bytes32[] calldata data) external returns (uint64);
+
+    /**
+     * @dev Returns an existing attestation by UID.
+     *
+     * @param uid The UID of the attestation to retrieve.
+     *
+     * @return The attestation data members.
+     */
+    function getAttestation(bytes32 uid) external view returns (Attestation memory);
+
+    /**
+     * @dev Checks whether an attestation exists.
+     *
+     * @param uid The UID of the attestation to retrieve.
+     *
+     * @return Whether an attestation exists.
+     */
+    function isAttestationValid(bytes32 uid) external view returns (bool);
+
+    /**
+     * @dev Returns the timestamp that the specified data was timestamped with.
+     *
+     * @param data The data to query.
+     *
+     * @return The timestamp the data was timestamped with.
+     */
+    function getTimestamp(bytes32 data) external view returns (uint64);
+
+    /**
+     * @dev Returns the timestamp that the specified data was timestamped with.
+     *
+     * @param data The data to query.
+     *
+     * @return The timestamp the data was timestamped with.
+     */
+    function getRevokeOffchain(address revoker, bytes32 data) external view returns (uint64);
+}

packages/contracts-bedrock/contracts/EAS/ISchemaRegistry.sol

+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.0;
+
+import { ISchemaResolver } from "./resolver/ISchemaResolver.sol";
+
+/**
+ * @title A struct representing a record for a submitted schema.
+ */
+struct SchemaRecord {
+    bytes32 uid; // The unique identifier of the schema.
+    ISchemaResolver resolver; // Optional schema resolver.
+    bool revocable; // Whether the schema allows revocations explicitly.
+    string schema; // Custom specification of the schema (e.g., an ABI).
+}
+
+/// @title ISchemaRegistry
+/// @notice The interface of global attestation schemas for the Ethereum Attestation Service protocol.
+interface ISchemaRegistry {
+    /**
+     * @dev Emitted when a new schema has been registered
+     *
+     * @param uid The schema UID.
+     * @param registerer The address of the account used to register the schema.
+     */
+    event Registered(bytes32 indexed uid, address registerer);
+
+    /**
+     * @dev Submits and reserves a new schema
+     *
+     * @param schema The schema data schema.
+     * @param resolver An optional schema resolver.
+     * @param revocable Whether the schema allows revocations explicitly.
+     *
+     * @return The UID of the new schema.
+     */
+    function register(string calldata schema, ISchemaResolver resolver, bool revocable) external returns (bytes32);
+
+    /**
+     * @dev Returns an existing schema by UID
+     *
+     * @param uid The UID of the schema to retrieve.
+     *
+     * @return The schema data members.
+     */
+    function getSchema(bytes32 uid) external view returns (SchemaRecord memory);
+}

packages/contracts-bedrock/contracts/EAS/SchemaRegistry.sol

+// SPDX-License-Identifier: MIT
+
+pragma solidity 0.8.19;
+
+import { Semver } from "../universal/Semver.sol";
+
+import { ISchemaResolver } from "./resolver/ISchemaResolver.sol";
+
+import { EMPTY_UID, MAX_GAP } from "./Common.sol";
+import { ISchemaRegistry, SchemaRecord } from "./ISchemaRegistry.sol";
+
+/// @custom:proxied
+/// @custom:predeploy 0x4200000000000000000000000000000000000020
+/// @title SchemaRegistry
+/// @notice The global attestation schemas for the Ethereum Attestation Service protocol.
+contract SchemaRegistry is ISchemaRegistry, Semver {
+    error AlreadyExists();
+
+    // The global mapping between schema records and their IDs.
+    mapping(bytes32 uid => SchemaRecord schemaRecord) private _registry;
+
+    // Upgrade forward-compatibility storage gap
+    uint256[MAX_GAP - 1] private __gap;
+
+    /**
+     * @dev Creates a new SchemaRegistry instance.
+     */
+    constructor() Semver(1, 0, 0) {}
+
+    /**
+     * @inheritdoc ISchemaRegistry
+     */
+    function register(string calldata schema, ISchemaResolver resolver, bool revocable) external returns (bytes32) {
+        SchemaRecord memory schemaRecord = SchemaRecord({
+            uid: EMPTY_UID,
+            schema: schema,
+            resolver: resolver,
+            revocable: revocable
+        });
+
+        bytes32 uid = _getUID(schemaRecord);
+        if (_registry[uid].uid != EMPTY_UID) {
+            revert AlreadyExists();
+        }
+
+        schemaRecord.uid = uid;
+        _registry[uid] = schemaRecord;
+
+        emit Registered(uid, msg.sender);
+
+        return uid;
+    }
+
+    /**
+     * @inheritdoc ISchemaRegistry
+     */
+    function getSchema(bytes32 uid) external view returns (SchemaRecord memory) {
+        return _registry[uid];
+    }
+
+    /**
+     * @dev Calculates a UID for a given schema.
+     *
+     * @param schemaRecord The input schema.
+     *
+     * @return schema UID.
+     */
+    function _getUID(SchemaRecord memory schemaRecord) private pure returns (bytes32) {
+        return keccak256(abi.encodePacked(schemaRecord.schema, schemaRecord.resolver, schemaRecord.revocable));
+    }
+}

packages/contracts-bedrock/contracts/EAS/eip712/EIP712Verifier.sol

+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.19;
+
+import { EIP712 } from "@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol";
+import { ECDSA } from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
+
+// prettier-ignore
+import {
+    AttestationRequest,
+    AttestationRequestData,
+    DelegatedAttestationRequest,
+    DelegatedRevocationRequest,
+    RevocationRequest,
+    RevocationRequestData
+} from "../IEAS.sol";
+
+import { EIP712Signature, InvalidSignature, MAX_GAP, stringToBytes32, bytes32ToString } from "../Common.sol";
+
+/// @title EIP712
+/// @notice The EIP712 typed signatures verifier for EAS delegated attestations.
+abstract contract EIP712Verifier is EIP712 {
+    // The hash of the data type used to relay calls to the attest function. It's the value of
+    // keccak256("Attest(bytes32 schema,address recipient,uint64 expirationTime,bool revocable,bytes32 refUID,bytes data,uint256 nonce)").
+    bytes32 private constant ATTEST_TYPEHASH = 0xdbfdf8dc2b135c26253e00d5b6cbe6f20457e003fd526d97cea183883570de61;
+
+    // The hash of the data type used to relay calls to the revoke function. It's the value of
+    // keccak256("Revoke(bytes32 schema,bytes32 uid,uint256 nonce)").
+    bytes32 private constant REVOKE_TYPEHASH = 0xa98d02348410c9c76735e0d0bb1396f4015ac2bb9615f9c2611d19d7a8a99650;
+
+    // The user readable name of the signing domain.
+    bytes32 private immutable _name;
+
+    // Replay protection nonces.
+    mapping(address => uint256) private _nonces;
+
+    // Upgrade forward-compatibility storage gap
+    uint256[MAX_GAP - 1] private __gap;
+
+    /**
+     * @dev Creates a new EIP712Verifier instance.
+     *
+     * @param version The current major version of the signing domain
+     */
+    constructor(string memory name, string memory version) EIP712(name, version) {
+        _name = stringToBytes32(name);
+    }
+
+    /**
+     * @dev Returns the domain separator used in the encoding of the signatures for attest, and revoke.
+     */
+    function getDomainSeparator() external view returns (bytes32) {
+        return _domainSeparatorV4();
+    }
+
+    /**
+     * @dev Returns the current nonce per-account.
+     *
+     * @param account The requested account.
+     *
+     * @return The current nonce.
+     */
+    function getNonce(address account) external view returns (uint256) {
+        return _nonces[account];
+    }
+
+    /**
+     * Returns the EIP712 type hash for the attest function.
+     */
+    function getAttestTypeHash() external pure returns (bytes32) {
+        return ATTEST_TYPEHASH;
+    }
+
+    /**
+     * Returns the EIP712 type hash for the revoke function.
+     */
+    function getRevokeTypeHash() external pure returns (bytes32) {
+        return REVOKE_TYPEHASH;
+    }
+
+    /**
+     * Returns the EIP712 name.
+     */
+    function getName() external view returns (string memory) {
+        return bytes32ToString(_name);
+    }
+
+    /**
+     * @dev Verifies delegated attestation request.
+     *
+     * @param request The arguments of the delegated attestation request.
+     */
+    function _verifyAttest(DelegatedAttestationRequest memory request) internal {
+        AttestationRequestData memory data = request.data;
+        EIP712Signature memory signature = request.signature;
+
+        uint256 nonce;
+        unchecked {
+            nonce = _nonces[request.attester]++;
+        }
+
+        bytes32 digest = _hashTypedDataV4(
+            keccak256(
+                abi.encode(
+                    ATTEST_TYPEHASH,
+                    request.schema,
+                    data.recipient,
+                    data.expirationTime,
+                    data.revocable,
+                    data.refUID,
+                    keccak256(data.data),
+                    nonce
+                )
+            )
+        );
+
+        if (ECDSA.recover(digest, signature.v, signature.r, signature.s) != request.attester) {
+            revert InvalidSignature();
+        }
+    }
+
+    /**
+     * @dev Verifies delegated revocation request.
+     *
+     * @param request The arguments of the delegated revocation request.
+     */
+    function _verifyRevoke(DelegatedRevocationRequest memory request) internal {
+        RevocationRequestData memory data = request.data;
+        EIP712Signature memory signature = request.signature;
+
+        uint256 nonce;
+        unchecked {
+            nonce = _nonces[request.revoker]++;
+        }
+
+        bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(REVOKE_TYPEHASH, request.schema, data.uid, nonce)));
+
+        if (ECDSA.recover(digest, signature.v, signature.r, signature.s) != request.revoker) {
+            revert InvalidSignature();
+        }
+    }
+}

packages/contracts-bedrock/contracts/EAS/resolver/ISchemaResolver.sol

+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.0;
+
+import { Attestation } from "../Common.sol";
+
+/// @title ISchemaResolver
+/// @notice The interface of an optional schema resolver.
+interface ISchemaResolver {
+    /**
+     * @dev Returns whether the resolver supports ETH transfers.
+     */
+    function isPayable() external pure returns (bool);
+
+    /**
+     * @dev Processes an attestation and verifies whether it's valid.
+     *
+     * @param attestation The new attestation.
+     *
+     * @return Whether the attestation is valid.
+     */
+    function attest(Attestation calldata attestation) external payable returns (bool);
+
+    /**
+     * @dev Processes multiple attestations and verifies whether they are valid.
+     *
+     * @param attestations The new attestations.
+     * @param values Explicit ETH amounts which were sent with each attestation.
+     *
+     * @return Whether all the attestations are valid.
+     */
+    function multiAttest(
+        Attestation[] calldata attestations,
+        uint256[] calldata values
+    ) external payable returns (bool);
+
+    /**
+     * @dev Processes an attestation revocation and verifies if it can be revoked.
+     *
+     * @param attestation The existing attestation to be revoked.
+     *
+     * @return Whether the attestation can be revoked.
+     */
+    function revoke(Attestation calldata attestation) external payable returns (bool);
+
+    /**
+     * @dev Processes revocation of multiple attestation and verifies they can be revoked.
+     *
+     * @param attestations The existing attestations to be revoked.
+     * @param values Explicit ETH amounts which were sent with each revocation.
+     *
+     * @return Whether the attestations can be revoked.
+     */
+    function multiRevoke(
+        Attestation[] calldata attestations,
+        uint256[] calldata values
+    ) external payable returns (bool);
+}

packages/contracts-bedrock/contracts/EAS/resolver/SchemaResolver.sol

+// SPDX-License-Identifier: MIT
+
+pragma solidity 0.8.19;
+
+import { Semver } from "../../universal/Semver.sol";
+
+import { IEAS, Attestation } from "../IEAS.sol";
+import { InvalidEAS, uncheckedInc } from "../Common.sol";
+
+import { ISchemaResolver } from "./ISchemaResolver.sol";
+
+/// @title SchemaResolver
+/// @notice The base schema resolver contract.
+abstract contract SchemaResolver is ISchemaResolver, Semver {
+    error AccessDenied();
+    error InsufficientValue();
+    error NotPayable();
+
+    // The global EAS contract.
+    IEAS internal immutable _eas;
+
+    /**
+     * @dev Creates a new resolver.
+     *
+     * @param eas The address of the global EAS contract.
+     */
+    constructor(IEAS eas) Semver(1, 0, 0) {
+        if (address(eas) == address(0)) {
+            revert InvalidEAS();
+        }
+
+        _eas = eas;
+    }
+
+    /**
+     * @dev Ensures that only the EAS contract can make this call.
+     */
+    modifier onlyEAS() {
+        _onlyEAS();
+
+        _;
+    }
+
+    /**
+     * @inheritdoc ISchemaResolver
+     */
+    function isPayable() public pure virtual returns (bool) {
+        return false;
+    }
+
+    /**
+     * @dev ETH callback.
+     */
+    receive() external payable virtual {
+        if (!isPayable()) {
+            revert NotPayable();
+        }
+    }
+
+    /**
+     * @inheritdoc ISchemaResolver
+     */
+    function attest(Attestation calldata attestation) external payable onlyEAS returns (bool) {
+        return onAttest(attestation, msg.value);
+    }
+
+    /**
+     * @inheritdoc ISchemaResolver
+     */
+    function multiAttest(
+        Attestation[] calldata attestations,
+        uint256[] calldata values
+    ) external payable onlyEAS returns (bool) {
+        uint256 length = attestations.length;
+
+        // We are keeping track of the remaining ETH amount that can be sent to resolvers and will keep deducting
+        // from it to verify that there isn't any attempt to send too much ETH to resolvers. Please note that unless
+        // some ETH was stuck in the contract by accident (which shouldn't happen in normal conditions), it won't be
+        // possible to send too much ETH anyway.
+        uint256 remainingValue = msg.value;
+
+        for (uint256 i = 0; i < length; i = uncheckedInc(i)) {
+            // Ensure that the attester/revoker doesn't try to spend more than available.
+            uint256 value = values[i];
+            if (value > remainingValue) {
+                revert InsufficientValue();
+            }
+
+            // Forward the attestation to the underlying resolver and revert in case it isn't approved.
+            if (!onAttest(attestations[i], value)) {
+                return false;
+            }
+
+            unchecked {
+                // Subtract the ETH amount, that was provided to this attestation, from the global remaining ETH amount.
+                remainingValue -= value;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @inheritdoc ISchemaResolver
+     */
+    function revoke(Attestation calldata attestation) external payable onlyEAS returns (bool) {
+        return onRevoke(attestation, msg.value);
+    }
+
+    /**
+     * @inheritdoc ISchemaResolver
+     */
+    function multiRevoke(
+        Attestation[] calldata attestations,
+        uint256[] calldata values
+    ) external payable onlyEAS returns (bool) {
+        uint256 length = attestations.length;
+
+        // We are keeping track of the remaining ETH amount that can be sent to resolvers and will keep deducting
+        // from it to verify that there isn't any attempt to send too much ETH to resolvers. Please note that unless
+        // some ETH was stuck in the contract by accident (which shouldn't happen in normal conditions), it won't be
+        // possible to send too much ETH anyway.
+        uint256 remainingValue = msg.value;
+
+        for (uint256 i = 0; i < length; i = uncheckedInc(i)) {
+            // Ensure that the attester/revoker doesn't try to spend more than available.
+            uint256 value = values[i];
+            if (value > remainingValue) {
+                revert InsufficientValue();
+            }
+
+            // Forward the revocation to the underlying resolver and revert in case it isn't approved.
+            if (!onRevoke(attestations[i], value)) {
+                return false;
+            }
+
+            unchecked {
+                // Subtract the ETH amount, that was provided to this attestation, from the global remaining ETH amount.
+                remainingValue -= value;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @dev A resolver callback that should be implemented by child contracts.
+     *
+     * @param attestation The new attestation.
+     * @param value An explicit ETH amount that was sent to the resolver. Please note that this value is verified in
+     * both attest() and multiAttest() callbacks EAS-only callbacks and that in case of multi attestations, it'll
+     * usually hold that msg.value != value, since msg.value aggregated the sent ETH amounts for all the attestations
+     * in the batch.
+     *
+     * @return Whether the attestation is valid.
+     */
+    function onAttest(Attestation calldata attestation, uint256 value) internal virtual returns (bool);
+
+    /**
+     * @dev Processes an attestation revocation and verifies if it can be revoked.
+     *
+     * @param attestation The existing attestation to be revoked.
+     * @param value An explicit ETH amount that was sent to the resolver. Please note that this value is verified in
+     * both revoke() and multiRevoke() callbacks EAS-only callbacks and that in case of multi attestations, it'll
+     * usually hold that msg.value != value, since msg.value aggregated the sent ETH amounts for all the attestations
+     * in the batch.
+     *
+     * @return Whether the attestation can be revoked.
+     */
+    function onRevoke(Attestation calldata attestation, uint256 value) internal virtual returns (bool);
+
+    /**
+     * @dev Ensures that only the EAS contract can make this call.
+     */
+    function _onlyEAS() private view {
+        if (msg.sender != address(_eas)) {
+            revert AccessDenied();
+        }
+    }
+}

packages/contracts-bedrock/contracts/libraries/Predeploys.sol

@@ -71,4 +71,10 @@ library Predeploys {
 
     /// @notice Address of the GovernanceToken predeploy.
     address internal constant GOVERNANCE_TOKEN = 0x4200000000000000000000000000000000000042;
+
+    /// @notice Address of the SchemaRegistry predeploy.
+    address internal constant SCHEMA_REGISTRY = 0x4200000000000000000000000000000000000020;
+
+    /// @notice Address of the EAS predeploy.
+    address internal constant EAS = 0x4200000000000000000000000000000000000021;
 }

packages/contracts-bedrock/package.json

@@ -31,10 +31,10 @@
     "clean": "rm -rf ./dist ./artifacts ./forge-artifacts ./cache ./tsconfig.tsbuildinfo ./tsconfig.build.tsbuildinfo ./src/contract-artifacts.ts ./test-case-generator/fuzz",
     "lint:ts:check": "eslint . --max-warnings=0",
     "lint:forge-tests:check": "ts-node scripts/forge-test-names.ts",
-    "lint:contracts:check": "pnpm solhint -f table 'contracts/**/!(DisputeTypes|RLPReader).sol' && pnpm prettier --check 'contracts/**/!(DisputeTypes|RLPReader).sol' && pnpm lint:forge-tests:check",
+    "lint:contracts:check": "pnpm solhint -f table 'contracts/**/!(DisputeTypes|RLPReader|EAS|SchemaRegistry|IEAS|ISchemaRegistry|SchemaResolver|EIP712Verifier|ISchemaResolver).sol' && pnpm prettier --check 'contracts/**/!(DisputeTypes|RLPReader|EAS|SchemaRegistry|IEAS|ISchemaRegistry|SchemaResolver|EIP712Verifier|ISchemaResolver).sol' && pnpm lint:forge-tests:check",
     "lint:check": "pnpm lint:contracts:check && pnpm lint:ts:check",
     "lint:ts:fix": "eslint --fix .",
-    "lint:contracts:fix": "pnpm solhint --fix 'contracts/**/!(DisputeTypes|RLPReader).sol' && pnpm prettier --write 'contracts/**/!(DisputeTypes|RLPReader).sol'",
+    "lint:contracts:fix": "pnpm solhint --fix 'contracts/**/!(DisputeTypes|RLPReader|EAS|SchemaRegistry|IEAS|ISchemaRegistry|SchemaResolver|EIP712Verifier|ISchemaResolver).sol' && pnpm prettier --write 'contracts/**/!(DisputeTypes|RLPReader|EAS|SchemaRegistry|IEAS|ISchemaRegistry|SchemaResolver|EIP712Verifier|ISchemaResolver).sol'",
     "lint:fix": "pnpm lint:contracts:fix && pnpm lint:ts:fix",
     "lint": "pnpm lint:fix && pnpm lint:check"
   },

packages/contracts-bedrock/scripts/Deploy.s.sol

 // SPDX-License-Identifier: MIT
-pragma solidity 0.8.15;
+pragma solidity ^0.8.0;
 
 import { Script } from "forge-std/Script.sol";
 import { Test } from "forge-std/Test.sol";

packages/contracts-bedrock/scripts/DeployConfig.s.sol

 // SPDX-License-Identifier: MIT
-pragma solidity 0.8.15;
+pragma solidity ^0.8.0;
 
 import { Script } from "forge-std/Script.sol";
 import { console2 as console } from "forge-std/console2.sol";

packages/contracts-bedrock/scripts/DeployL2.s.sol

+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import { Deployer } from "./Deployer.sol";
+import { DeployConfig } from "./DeployConfig.s.sol";
+import { console2 as console } from "forge-std/console2.sol";
+
+import { EAS } from "../contracts/EAS/EAS.sol";
+import { SchemaRegistry } from "../contracts/EAS/SchemaRegistry.sol";
+import { ISchemaRegistry } from "../contracts/EAS/ISchemaRegistry.sol";
+import { Predeploys } from "../contracts/libraries/Predeploys.sol";
+
+/// @title DeployL2
+/// @notice Script used to deploy predeploy implementations to L2.
+contract DeployL2 is Deployer {
+    DeployConfig cfg;
+
+    /// @notice The name of the script, used to ensure the right deploy artifacts
+    ///         are used.
+    function name() public pure override returns (string memory) {
+        return "DeployL2";
+    }
+
+    function setUp() public override {
+        super.setUp();
+
+        string memory path = string.concat(vm.projectRoot(), "/deploy-config/", deploymentContext, ".json");
+        cfg = new DeployConfig(path);
+
+        console.log("Deploying from %s", deployScript);
+        console.log("Deployment context: %s", deploymentContext);
+    }
+
+    /// @notice Modifier that wraps a function in broadcasting.
+    modifier broadcast() {
+        vm.startBroadcast();
+        _;
+        vm.stopBroadcast();
+    }
+
+    /// @notice Deploy the EAS implementation.
+    function deployEAS() broadcast() public returns (address) {
+        EAS eas = new EAS();
+
+        ISchemaRegistry registry = eas.getSchemaRegistry();
+        require(address(registry) == Predeploys.SCHEMA_REGISTRY, "EAS: invalid SchemaRegistry address");
+
+        save("EAS", address(eas));
+        console.log("EAS deployed at %s", address(eas));
+
+        string memory version = eas.version();
+        console.log("EAS version: %s", version);
+
+        return address(eas);
+    }
+
+    /// @notice Deploy the SchemaManager implementation.
+    function deploySchemaRegistry() broadcast() public returns (address) {
+        SchemaRegistry registry = new SchemaRegistry();
+
+        save("SchemaRegistry", address(registry));
+        console.log("SchemaRegistry deployed at %s", address(registry));
+
+        string memory version = registry.version();
+        console.log("SchemaRegistry version: %s", version);
+
+        return address(registry);
+    }
+}
+

packages/contracts-bedrock/scripts/Deployer.sol

 // SPDX-License-Identifier: MIT
-pragma solidity 0.8.15;
+pragma solidity ^0.8.0;
 
 import { Script } from "forge-std/Script.sol";
 import { stdJson } from "forge-std/StdJson.sol";
@@ -103,13 +103,12 @@ abstract contract Deployer is Script {
             string memory deploymentName = deployments[i].name;
 
             string memory deployTx = _getDeployTransactionByContractAddress(addr);
-            string memory contractName = stdJson.readString(deployTx, ".contractName");
-            console.log("Syncing %s", deploymentName);
+            string memory contractName = _getContractNameFromDeployTransaction(deployTx);
+            console.log("Syncing deployment %s: contract %s", deploymentName, contractName);
 
-            string memory fqn = getFullyQualifiedName(contractName);
             string[] memory args = getDeployTransactionConstructorArguments(deployTx);
-            bytes memory code = vm.getCode(fqn);
-            bytes memory deployedCode = vm.getDeployedCode(fqn);
+            bytes memory code = _getCode(contractName);
+            bytes memory deployedCode = _getDeployedCode(contractName);
             string memory receipt = _getDeployReceiptByContractAddress(addr);
 
             string memory artifactPath = string.concat(deploymentsDir, "/", deploymentName, ".json");
@@ -119,6 +118,7 @@ abstract contract Deployer is Script {
                 numDeployments = stdJson.readUint(string(res), "$.numDeployments");
                 vm.removeFile(artifactPath);
             } catch {}
+            numDeployments++;
 
             Artifact memory artifact = Artifact({
                 abi: getAbi(contractName),
@@ -261,6 +261,36 @@ abstract contract Deployer is Script {
         return string(res);
     }
 
+    /// @notice Returns the contract name from a deploy transaction.
+    function _getContractNameFromDeployTransaction(string memory _deployTx) internal returns (string memory) {
+        return stdJson.readString(_deployTx, ".contractName");
+    }
+
+    /// @notice Wrapper for vm.getCode that handles semver in the name.
+    function _getCode(string memory _name) internal returns (bytes memory) {
+        string memory fqn = _getFullyQualifiedName(_name);
+        bytes memory code = vm.getCode(fqn);
+        return code;
+    }
+
+    /// @notice Wrapper for vm.getDeployedCode that handles semver in the name.
+    function _getDeployedCode(string memory _name) internal returns (bytes memory) {
+        string memory fqn = _getFullyQualifiedName(_name);
+        bytes memory code = vm.getDeployedCode(fqn);
+        return code;
+    }
+
+    /// @notice Removes the semantic versioning from a contract name. The semver will exist if the contract is compiled more than
+    ///         once with different versions of the compiler.
+    function _stripSemver(string memory _name) internal returns (string memory) {
+        string[] memory cmd = new string[](3);
+        cmd[0] = Executables.bash;
+        cmd[1] = "-c";
+        cmd[2] = string.concat(Executables.echo, " ", _name, " | ", Executables.sed, " -E 's/[.][0-9]+\\.[0-9]+\\.[0-9]+//g'");
+        bytes memory res = vm.ffi(cmd);
+        return string(res);
+    }
+
     /// @notice Returns the constructor arguent of a deployment transaction given a transaction json.
     function getDeployTransactionConstructorArguments(string memory _transaction) internal returns (string[] memory) {
         string[] memory cmd = new string[](3);
@@ -277,9 +307,10 @@ abstract contract Deployer is Script {
     }
 
     /// @notice Builds the fully qualified name of a contract. Assumes that the
-    ///         file name is the same as the contract name.
-    function getFullyQualifiedName(string memory _name) internal pure returns (string memory) {
-        return string.concat(_name, ".sol:", _name);
+    ///         file name is the same as the contract name but strips semver for the file name.
+    function _getFullyQualifiedName(string memory _name) internal returns (string memory) {
+        string memory sanitized = _stripSemver(_name);
+        return string.concat(sanitized, ".sol:", _name);
     }
 
     /// @notice Returns the filesystem path to the artifact path. Assumes that the name of the
@@ -290,7 +321,8 @@ abstract contract Deployer is Script {
         cmd[1] = "-c";
         cmd[2] = string.concat(Executables.forge, " config --json | ", Executables.jq, " -r .out");
         bytes memory res = vm.ffi(cmd);
-        string memory forgeArtifactPath = string.concat(vm.projectRoot(), "/", string(res), "/", _name, ".sol/", _name, ".json");
+        string memory contractName = _stripSemver(_name);
+        string memory forgeArtifactPath = string.concat(vm.projectRoot(), "/", string(res), "/", contractName, ".sol/", _name, ".json");
         return forgeArtifactPath;
     }
 

packages/contracts-bedrock/scripts/Executables.sol

@@ -8,4 +8,6 @@ library Executables {
     string internal constant bash = "bash";
     string internal constant jq = "jq";
     string internal constant forge = "forge";
+    string internal constant echo = "echo";
+    string internal constant sed = "sed";
 }

specs/predeploys.md

@@ -21,6 +21,8 @@
 - [OptimismMintableERC721Factory](#optimismmintableerc721factory)
 - [BaseFeeVault](#basefeevault)
 - [L1FeeVault](#l1feevault)
+- [SchemaRegistry](#schemaregistry)
+- [EAS](#eas)
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
@@ -311,3 +313,20 @@ Address: `0x420000000000000000000000000000000000001a`
 The `L1FeeVault` predeploy receives the L1 portion of the transaction fees.
 Once the contract has received a certain amount of fees, the ETH can be
 withdrawn to an immutable address on L1.
+
+## SchemaRegistry
+
+[Implementation](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/contracts/EAS/SchemaRegistry.sol)
+
+Address: `0x4200000000000000000000000000000000000020`
+
+The `SchemaRegistry` predeploy implements the global attestation schemas for the `Ethereum Attestation Service`
+protocol.
+
+## EAS
+
+[Implementation](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/contracts/EAS/EAS.sol)
+
+Address: `0x4200000000000000000000000000000000000021`
+
+The `EAS` predeploy implements the `Ethereum Attestation Service` protocol.