diff --git a/README.md b/README.md
index 9a71e22..6a8143c 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Proposal 42
+# Proposal 43
 
 Unregister cheating relayer and withdraw his balance to Governance
 
diff --git a/contracts/libraries/Base58.sol b/contracts/libraries/Base58.sol
index 22f5904..776aad6 100644
--- a/contracts/libraries/Base58.sol
+++ b/contracts/libraries/Base58.sol
@@ -10,50 +10,12 @@ pragma solidity ^0.8.7;
 library Base58 {
     bytes constant ALPHABET = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
 
-    /**
-     * @notice encode is used to encode the given bytes in base58 standard.
-     * @param data_ raw data, passed in as bytes.
-     * @return base58 encoded data_, returned as bytes.
-     */
-    function encode(bytes memory data_) public pure returns (bytes memory) {
-        unchecked {
-            uint256 size = data_.length;
-            uint256 zeroCount;
-            while (zeroCount < size && data_[zeroCount] == 0) {
-                zeroCount++;
-            }
-            size = zeroCount + ((size - zeroCount) * 8351) / 6115 + 1;
-            bytes memory slot = new bytes(size);
-            uint32 carry;
-            int256 m;
-            int256 high = int256(size) - 1;
-            for (uint256 i = 0; i < data_.length; i++) {
-                m = int256(size - 1);
-                for (carry = uint8(data_[i]); m > high || carry != 0; m--) {
-                    carry = carry + 256 * uint8(slot[uint256(m)]);
-                    slot[uint256(m)] = bytes1(uint8(carry % 58));
-                    carry /= 58;
-                }
-                high = m;
-            }
-            uint256 n;
-            for (n = zeroCount; n < size && slot[n] == 0; n++) {}
-            size = slot.length - (n - zeroCount);
-            bytes memory out = new bytes(size);
-            for (uint256 i = 0; i < size; i++) {
-                uint256 j = i + n - zeroCount;
-                out[i] = ALPHABET[uint8(slot[j])];
-            }
-            return out;
-        }
-    }
-
     /**
      * @notice decode is used to decode the given string in base58 standard.
      * @param data_ data encoded with base58, passed in as bytes.
      * @return raw data, returned as bytes.
      */
-    function decode(bytes memory data_) public pure returns (bytes memory) {
+    function decode(bytes memory data_) internal pure returns (bytes memory) {
         unchecked {
             uint256 zero = 49;
             uint256 b58sz = data_.length;
@@ -102,30 +64,12 @@ library Base58 {
         }
     }
 
-    /**
-     * @notice encodeToString is used to encode the given byte in base58 standard.
-     * @param data_ raw data, passed in as bytes.
-     * @return base58 encoded data_, returned as a string.
-     */
-    function encodeToString(bytes memory data_) public pure returns (string memory) {
-        return string(encode(data_));
-    }
-
-    /**
-     * @notice encodeFromString is used to encode the given string in base58 standard.
-     * @param data_ raw data, passed in as a string.
-     * @return base58 encoded data_, returned as bytes.
-     */
-    function encodeFromString(string memory data_) public pure returns (bytes memory) {
-        return encode(bytes(data_));
-    }
-
     /**
      * @notice decode is used to decode the given string in base58 standard.
      * @param data_ data encoded with base58, passed in as string.
      * @return raw data, returned as bytes.
      */
-    function decodeFromString(string memory data_) public pure returns (bytes memory) {
+    function decodeFromString(string memory data_) internal pure returns (bytes memory) {
         return decode(bytes(data_));
     }
 
@@ -136,7 +80,7 @@ library Base58 {
      * @param end_ end index.
      * @return slice data
      */
-    function slice(bytes memory data_, uint256 start_, uint256 end_) public pure returns (bytes memory) {
+    function slice(bytes memory data_, uint256 start_, uint256 end_) private pure returns (bytes memory) {
         unchecked {
             bytes memory ret = new bytes(end_ - start_);
             for (uint256 i = 0; i < end_ - start_; i++) {
diff --git a/hardhat.config.js b/hardhat.config.js
index 4ad8ca5..b4ae26c 100644
--- a/hardhat.config.js
+++ b/hardhat.config.js
@@ -1,4 +1,5 @@
 require("@nomicfoundation/hardhat-toolbox");
+require("hardhat-gas-reporter");
 require("dotenv").config();
 
 /** @type import('hardhat/config').HardhatUserConfig */
@@ -24,9 +25,9 @@ module.exports = {
     },
     hardhat: {
       forking: {
-        url: "https://eth.llamarpc.com",
+        url: "https://rpc.mevblocker.io/fast",
         enabled: true,
-        blockNumber: 18820230,
+        blockNumber: 18836511,
         accounts: [process.env.REAL_PK],
       },
       chainId: 1,
@@ -41,4 +42,7 @@ module.exports = {
   etherscan: {
     apiKey: process.env.ETHERSCAN_KEY,
   },
+  gasReporter: {
+    enabled: false
+  }
 };
diff --git a/package-lock.json b/package-lock.json
index 7319946..b81a216 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,11 +1,11 @@
 {
-  "name": "proposal-42",
+  "name": "proposal-43",
   "version": "1.0.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
-      "name": "proposal-42",
+      "name": "proposal-43",
       "version": "1.0.0",
       "license": "ISC",
       "dependencies": {
diff --git a/package.json b/package.json
index f148bfb..22cc71d 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "proposal-42",
+  "name": "proposal-43",
   "version": "1.0.0",
   "description": "",
   "main": "hardhat.config.js",
diff --git a/test/Proposal.js b/test/Proposal.js
index 7f4a0ab..c3f6be7 100644
--- a/test/Proposal.js
+++ b/test/Proposal.js
@@ -36,7 +36,7 @@ async function deployAndExecuteProposal() {
   const proposal = await proposalFactory.deploy();
   const deployedProposalAddr = await proposal.getAddress();
 
-  const bigStakerAddr = "0xE4143f6377AEcd7193b9731d1C28815b57C4f5Ab";
+  const bigStakerAddr = "0xAd0dC9b5bf4308Cc26C1d44E1BEB2d30c43Bca1b";
   await getManyEth(bigStakerAddr);
   const stakerSigner = await ethers.getImpersonatedSigner(bigStakerAddr);
   const governanceContract = await ethers.getContractAt(
@@ -52,7 +52,7 @@ async function deployAndExecuteProposal() {
   await governanceContract.execute(proposalId);
   await time.increase(60 * 60 * 24 * 4);
 
-  return await getRelayerRegistry();
+  return governanceContract;
 }
 
 describe("Proposal results check", function () {