add contract and block interface

meta/sentry/v1/request_response.proto

@@ -98,3 +98,8 @@ message GetNonceReq {
 message GetNonceResp {
   repeated string balance = 1;
 }
+
+
+message BlockNumber {
+  uint64 blocknum = 1;
+}
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meta/sentry/v1/service.proto

@@ -3,6 +3,7 @@ syntax = "proto3";
 package meta.sentry.v1;
 option go_package = "sentryv1";
 import "meta/sentry/v1/request_response.proto";
+import "google/protobuf/empty.proto";
 
 // SentryService methods for other module.
 service SentryService {
@@ -21,4 +22,5 @@ service SentryService {
 
   rpc GetBalance(GetBalanceReq) returns (GetBalanceResp) {};
   rpc GetNonce(GetNonceReq) returns (GetNonceResp) {};
+  rpc GetBlockNumber(google.protobuf.Empty) returns (BlockNumber) {};
 }

meta/txchecker/contract.sol

+
+pragma solidity ^ 0.8.13;
+
+interface consensus{ 
+    function queryBatchHash(uint64 height)  external view  returns ( bytes calldata); 
+    function queryRate()  external view  returns (uint32 rate);
+    function latestHeight() external view returns (uint64);
+    function batchHash(uint64 height, bytes calldata batchhash)external returns (bool success);
+}
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