ETH Price: $3,555.33 (+2.25%)
Gas: 22 Gwei

Contract

0x342E066Cf996144B7B9579E32C80B9313A02e8C2
 
Transaction Hash
Method
Block
From
To
Value
Execute194424362024-03-15 19:29:5913 days ago1710530999IN
0x342E066C...13A02e8C2
0 ETH0.0038667736.36306119
Execute193647122024-03-04 22:13:1124 days ago1709590391IN
0x342E066C...13A02e8C2
0 ETH0.0153901287.64457681
Execute192159202024-02-13 1:49:3545 days ago1707788975IN
0x342E066C...13A02e8C2
0 ETH0.0105576870
Execute189308102024-01-04 1:52:2385 days ago1704333143IN
0x342E066C...13A02e8C2
0 ETH0.0028753732.22143066
Execute187649972023-12-11 19:18:47108 days ago1702322327IN
0x342E066C...13A02e8C2
0 ETH0.0043439940.84621942
Execute186797732023-11-29 20:52:35120 days ago1701291155IN
0x342E066C...13A02e8C2
0 ETH0.04012335150
Execute173231212023-05-23 16:29:23310 days ago1684859363IN
0x342E066C...13A02e8C2
0 ETH0.01115475125
Execute164772062023-01-24 14:16:23429 days ago1674569783IN
0x342E066C...13A02e8C2
0 ETH0.0024387122.92586771
Execute160853252022-11-30 20:56:35484 days ago1669841795IN
0x342E066C...13A02e8C2
0 ETH0.0026590525
Execute160853212022-11-30 20:55:47484 days ago1669841747IN
0x342E066C...13A02e8C2
0 ETH0.0022315525
Execute156256322022-09-27 15:37:59548 days ago1664293079IN
0x342E066C...13A02e8C2
0 ETH0.0034834632.7547214
Execute153601592022-08-17 17:53:18589 days ago1660758798IN
0x342E066C...13A02e8C2
0 ETH0.0029343327.58506106
Execute150466122022-06-29 19:45:34638 days ago1656531934IN
0x342E066C...13A02e8C2
0 ETH0.0067418663.37884184
Execute148990792022-06-03 20:03:56664 days ago1654286636IN
0x342E066C...13A02e8C2
0 ETH0.0081373180.12168337
Execute147616802022-05-12 14:47:10686 days ago1652366830IN
0x342E066C...13A02e8C2
0 ETH0.02974696217.17551006
Execute141358012022-02-03 22:47:52784 days ago1643928472IN
0x342E066C...13A02e8C2
0 ETH0.01637554126.55369246
Execute139983772022-01-13 16:55:03805 days ago1642092903IN
0x342E066C...13A02e8C2
0 ETH0.02883818199.83499181
Execute138954582021-12-28 18:52:53821 days ago1640717573IN
0x342E066C...13A02e8C2
0 ETH0.01577208233.60861006
Execute131468612021-09-02 14:39:08938 days ago1630593548IN
0x342E066C...13A02e8C2
0 ETH0.02574425110.63376951
Execute131033052021-08-26 20:55:38945 days ago1630011338IN
0x342E066C...13A02e8C2
0 ETH0.0072453876.84801459
Execute129466502021-08-02 15:10:38969 days ago1627917038IN
0x342E066C...13A02e8C2
0 ETH0.0041594242
Execute129020312021-07-26 13:15:49976 days ago1627305349IN
0x342E066C...13A02e8C2
0 ETH0.0041609442
Execute128137502021-07-12 17:17:08990 days ago1626110228IN
0x342E066C...13A02e8C2
0 ETH0.0047553648
Execute128127412021-07-12 13:39:26990 days ago1626097166IN
0x342E066C...13A02e8C2
0 ETH0.0036655937
Transfer126788402021-06-21 16:59:301011 days ago1624294770IN
0x342E066C...13A02e8C2
0.2 ETH0.0010730451
View all transactions

Latest 2 internal transactions

Advanced mode:
Parent Txn Hash Block From To Value
138954582021-12-28 18:52:53821 days ago1640717573
0x342E066C...13A02e8C2
0.1 ETH
123826062021-05-06 19:21:161057 days ago1620328876
0x342E066C...13A02e8C2
0.0001 ETH
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x0644Bd02...3591e5D33
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
SimpleMultiSig

Compiler Version
v0.4.24+commit.e67f0147

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license
/**
 *Submitted for verification at Etherscan.io on 2021-06-24
*/

pragma solidity ^0.4.24;

contract SimpleMultiSig {

// EIP712 Precomputed hashes:
// keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract,bytes32 salt)")
bytes32 constant EIP712DOMAINTYPE_HASH = 0xd87cd6ef79d4e2b95e15ce8abf732db51ec771f1ca2edccf22a46c729ac56472;

// keccak256("Simple MultiSig")
bytes32 constant NAME_HASH = 0xb7a0bfa1b79f2443f4d73ebb9259cddbcd510b18be6fc4da7d1aa7b1786e73e6;

// keccak256("1")
bytes32 constant VERSION_HASH = 0xc89efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bc6;

// keccak256("MultiSigTransaction(address destination,uint256 value,bytes data,uint256 nonce,address executor,uint256 gasLimit)")
bytes32 constant TXTYPE_HASH = 0x3ee892349ae4bbe61dce18f95115b5dc02daf49204cc602458cd4c1f540d56d7;

bytes32 constant SALT = 0x251543af6a222378665a76fe38dbceae4871a070b7fdaf5c6c30cf758dc33cc0;

  uint public nonce;                 // (only) mutable state
  uint public threshold;             // immutable state
  mapping (address => bool) isOwner; // immutable state
  address[] public ownersArr;        // immutable state

  bytes32 DOMAIN_SEPARATOR;          // hash for EIP712, computed from contract address

  function owners() public view returns (address[]) {
    return ownersArr;
  }

  // Note that owners_ must be strictly increasing, in order to prevent duplicates
  function setOwners_(uint threshold_, address[] owners_) private {
    require(owners_.length <= 20 && threshold_ <= owners_.length && threshold_ > 0);

    // remove old owners from map
    for (uint i = 0; i < ownersArr.length; i++) {
      isOwner[ownersArr[i]] = false;
    }

    // add new owners to map
    address lastAdd = address(0);
    for (i = 0; i < owners_.length; i++) {
      require(owners_[i] > lastAdd);
      isOwner[owners_[i]] = true;
      lastAdd = owners_[i];
    }

    // set owners array and threshold
    ownersArr = owners_;
    threshold = threshold_;
  }

  constructor(uint threshold_, address[] owners_, uint chainId) public {
    setOwners_(threshold_, owners_);

    DOMAIN_SEPARATOR = keccak256(abi.encode(EIP712DOMAINTYPE_HASH,
                                            NAME_HASH,
                                            VERSION_HASH,
                                            chainId,
                                            this,
                                            SALT));
  }

  // Requires a quorum of owners to call from this contract using execute
  function setOwners(uint threshold_, address[] owners_) external {
    require(msg.sender == address(this));
    setOwners_(threshold_, owners_);
  }

  // Note that address recovered from signatures must be strictly increasing, in order to prevent duplicates
  function execute(uint8[] sigV, bytes32[] sigR, bytes32[] sigS, address destination, uint value, bytes data, address executor, uint gasLimit) public {
    require(sigR.length == threshold);
    require(sigR.length == sigS.length && sigR.length == sigV.length);
    require(executor == msg.sender || executor == address(0));

    // EIP712 scheme: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-712.md
    bytes32 txInputHash = keccak256(abi.encode(TXTYPE_HASH, destination, value, keccak256(data), nonce, executor, gasLimit));
    bytes32 totalHash = keccak256(abi.encodePacked("\x19\x01", DOMAIN_SEPARATOR, txInputHash));

    address lastAdd = address(0); // cannot have address(0) as an owner
    for (uint i = 0; i < threshold; i++) {
      address recovered = ecrecover(totalHash, sigV[i], sigR[i], sigS[i]);
      require(recovered > lastAdd && isOwner[recovered]);
      lastAdd = recovered;
    }

    // If we make it here all signatures are accounted for.
    // The address.call() syntax is no longer recommended, see:
    // https://github.com/ethereum/solidity/issues/2884
    nonce = nonce + 1;
    bool success = false;
    assembly { success := call(gasLimit, destination, value, add(data, 0x20), mload(data), 0, 0) }
    require(success);
  }

  function () payable external {}
}

Contract Security Audit

Contract ABI

[{"constant":true,"inputs":[],"name":"threshold","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"sigV","type":"uint8[]"},{"name":"sigR","type":"bytes32[]"},{"name":"sigS","type":"bytes32[]"},{"name":"destination","type":"address"},{"name":"value","type":"uint256"},{"name":"data","type":"bytes"},{"name":"executor","type":"address"},{"name":"gasLimit","type":"uint256"}],"name":"execute","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"ownersArr","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owners","outputs":[{"name":"","type":"address[]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"nonce","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"threshold_","type":"uint256"},{"name":"owners_","type":"address[]"}],"name":"setOwners","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"threshold_","type":"uint256"},{"name":"owners_","type":"address[]"},{"name":"chainId","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"}]

Deployed Bytecode

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Deployed Bytecode Sourcemap

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Swarm Source

bzzr://b64a6b48b8cf5ba778e8633b37621b5c5635bf66a15ba6263d89da684b3105a2

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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Validator Index Block Amount
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Txn Hash Block Value Eth2 PubKey Valid
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.