ETH Price: $3,332.82 (-1.32%)

Contract

0x2e39796A52B5674993a66c4E48130523F5e6194D
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Multichain Info

No addresses found
Transaction Hash
Method
Block
From
To
Transfer169214032023-03-27 21:30:59636 days ago1679952659IN
0x2e39796A...3F5e6194D
10.000625 ETH0.0012238131.05741663
Transfer169182832023-03-27 11:00:47636 days ago1679914847IN
0x2e39796A...3F5e6194D
7.000424 ETH0.0008010420.32841718
Transfer169181342023-03-27 10:30:35637 days ago1679913035IN
0x2e39796A...3F5e6194D
7.000419 ETH0.0008390421.29278435
Transfer169135412023-03-26 19:00:35637 days ago1679857235IN
0x2e39796A...3F5e6194D
7.000431 ETH0.0007971320.22930321
Transfer169047882023-03-25 13:30:47638 days ago1679751047IN
0x2e39796A...3F5e6194D
7.000471 ETH0.0009215723.38736572
Transfer168972272023-03-24 12:00:59639 days ago1679659259IN
0x2e39796A...3F5e6194D
7.000575 ETH0.0027272269.21019122
Transfer168902502023-03-23 12:30:35640 days ago1679574635IN
0x2e39796A...3F5e6194D
7.000552 ETH0.0011964430.36270825
Transfer168880332023-03-23 5:00:35641 days ago1679547635IN
0x2e39796A...3F5e6194D
7.000295 ETH0.0005335313.53980263
Transfer168834422023-03-22 13:30:59641 days ago1679491859IN
0x2e39796A...3F5e6194D
7.000484 ETH0.0010227125.95403251
Transfer168828502023-03-22 11:30:35641 days ago1679484635IN
0x2e39796A...3F5e6194D
7.000319 ETH0.0006130115.55682219
Transfer168760252023-03-21 12:30:35642 days ago1679401835IN
0x2e39796A...3F5e6194D
7.000346 ETH0.0006439216.34125747
Transfer168694922023-03-20 14:30:35643 days ago1679322635IN
0x2e39796A...3F5e6194D
7.001081 ETH0.0014597537.04485222
Transfer168635532023-03-19 18:31:23644 days ago1679250683IN
0x2e39796A...3F5e6194D
7.000456 ETH0.0010126625.69896592
Transfer168617802023-03-19 12:30:35644 days ago1679229035IN
0x2e39796A...3F5e6194D
7.000303 ETH0.0006118415.52717064
Transfer168558382023-03-18 16:30:35645 days ago1679157035IN
0x2e39796A...3F5e6194D
7.000564 ETH0.000996625.29132665
Transfer168546522023-03-18 12:30:47645 days ago1679142647IN
0x2e39796A...3F5e6194D
7.000367 ETH0.0007112618.05012034
Transfer168487242023-03-17 16:30:47646 days ago1679070647IN
0x2e39796A...3F5e6194D
7.000488 ETH0.0010255526.02598381
Transfer168413082023-03-16 15:30:35647 days ago1678980635IN
0x2e39796A...3F5e6194D
7.000784 ETH0.0014188936.00801706
Transfer168353842023-03-15 19:30:35648 days ago1678908635IN
0x2e39796A...3F5e6194D
7.000578 ETH0.0010129425.70608757
Transfer168349732023-03-15 18:07:47648 days ago1678903667IN
0x2e39796A...3F5e6194D
7.00102 ETH0.0015112238.35098483
Transfer168329642023-03-15 11:20:59648 days ago1678879259IN
0x2e39796A...3F5e6194D
0.030533 ETH0.0009953425.25940369
Transfer168315352023-03-15 6:30:35649 days ago1678861835IN
0x2e39796A...3F5e6194D
10.000435 ETH0.0008799622.3312668
Transfer168269452023-03-14 15:00:47649 days ago1678806047IN
0x2e39796A...3F5e6194D
10.001103 ETH0.0022313556.62626987
Transfer168247142023-03-14 7:30:35650 days ago1678779035IN
0x2e39796A...3F5e6194D
10.00037 ETH0.000798620.26654702
Transfer168190842023-03-13 12:30:47650 days ago1678710647IN
0x2e39796A...3F5e6194D
10.000493 ETH0.0009772624.80048939
View all transactions

Latest 25 internal transactions (View All)

Advanced mode:
Parent Transaction Hash Block
From
To
169214032023-03-27 21:30:59636 days ago1679952659
0x2e39796A...3F5e6194D
10.000625 ETH
169182832023-03-27 11:00:47636 days ago1679914847
0x2e39796A...3F5e6194D
7.000424 ETH
169181342023-03-27 10:30:35637 days ago1679913035
0x2e39796A...3F5e6194D
7.000419 ETH
169135412023-03-26 19:00:35637 days ago1679857235
0x2e39796A...3F5e6194D
7.000431 ETH
169047882023-03-25 13:30:47638 days ago1679751047
0x2e39796A...3F5e6194D
7.000471 ETH
168972272023-03-24 12:00:59639 days ago1679659259
0x2e39796A...3F5e6194D
7.000575 ETH
168902502023-03-23 12:30:35640 days ago1679574635
0x2e39796A...3F5e6194D
7.000552 ETH
168880332023-03-23 5:00:35641 days ago1679547635
0x2e39796A...3F5e6194D
7.000295 ETH
168834422023-03-22 13:30:59641 days ago1679491859
0x2e39796A...3F5e6194D
7.000484 ETH
168828502023-03-22 11:30:35641 days ago1679484635
0x2e39796A...3F5e6194D
7.000319 ETH
168760252023-03-21 12:30:35642 days ago1679401835
0x2e39796A...3F5e6194D
7.000346 ETH
168694922023-03-20 14:30:35643 days ago1679322635
0x2e39796A...3F5e6194D
7.001081 ETH
168635532023-03-19 18:31:23644 days ago1679250683
0x2e39796A...3F5e6194D
7.000456 ETH
168617802023-03-19 12:30:35644 days ago1679229035
0x2e39796A...3F5e6194D
7.000303 ETH
168558382023-03-18 16:30:35645 days ago1679157035
0x2e39796A...3F5e6194D
7.000564 ETH
168546522023-03-18 12:30:47645 days ago1679142647
0x2e39796A...3F5e6194D
7.000367 ETH
168487242023-03-17 16:30:47646 days ago1679070647
0x2e39796A...3F5e6194D
7.000488 ETH
168413082023-03-16 15:30:35647 days ago1678980635
0x2e39796A...3F5e6194D
7.000784 ETH
168353842023-03-15 19:30:35648 days ago1678908635
0x2e39796A...3F5e6194D
7.000578 ETH
168349732023-03-15 18:07:47648 days ago1678903667
0x2e39796A...3F5e6194D
7.00102 ETH
168329642023-03-15 11:20:59648 days ago1678879259
0x2e39796A...3F5e6194D
0.030533 ETH
168315352023-03-15 6:30:35649 days ago1678861835
0x2e39796A...3F5e6194D
10.000435 ETH
168269452023-03-14 15:00:47649 days ago1678806047
0x2e39796A...3F5e6194D
10.001103 ETH
168247142023-03-14 7:30:35650 days ago1678779035
0x2e39796A...3F5e6194D
10.00037 ETH
168190842023-03-13 12:30:47650 days ago1678710647
0x2e39796A...3F5e6194D
10.000493 ETH
View All Internal Transactions
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0xe236AeBE...08FE07D3f
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
Forwarder

Compiler Version
v0.4.16-nightly.2017.8.11+commit.c84de7fa

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2017-11-21
*/

pragma solidity ^0.4.14;

/**
 * Contract that exposes the needed erc20 token functions
 */

contract ERC20Interface {
  // Send _value amount of tokens to address _to
  function transfer(address _to, uint256 _value) returns (bool success);
  // Get the account balance of another account with address _owner
  function balanceOf(address _owner) constant returns (uint256 balance);
}

/**
 * Contract that will forward any incoming Ether to its creator
 */
contract Forwarder {
  // Address to which any funds sent to this contract will be forwarded
  address public parentAddress;
  event ForwarderDeposited(address from, uint value, bytes data);

  event TokensFlushed(
    address tokenContractAddress, // The contract address of the token
    uint value // Amount of token sent
  );

  /**
   * Create the contract, and set the destination address to that of the creator
   */
  function Forwarder() {
    parentAddress = msg.sender;
  }

  /**
   * Modifier that will execute internal code block only if the sender is a parent of the forwarder contract
   */
  modifier onlyParent {
    if (msg.sender != parentAddress) {
      throw;
    }
    _;
  }

  /**
   * Default function; Gets called when Ether is deposited, and forwards it to the destination address
   */
  function() payable {
    if (!parentAddress.call.value(msg.value)(msg.data))
      throw;
    // Fire off the deposited event if we can forward it  
    ForwarderDeposited(msg.sender, msg.value, msg.data);
  }

  /**
   * Execute a token transfer of the full balance from the forwarder token to the main wallet contract
   * @param tokenContractAddress the address of the erc20 token contract
   */
  function flushTokens(address tokenContractAddress) onlyParent {
    ERC20Interface instance = ERC20Interface(tokenContractAddress);
    var forwarderAddress = address(this);
    var forwarderBalance = instance.balanceOf(forwarderAddress);
    if (forwarderBalance == 0) {
      return;
    }
    if (!instance.transfer(parentAddress, forwarderBalance)) {
      throw;
    }
    TokensFlushed(tokenContractAddress, forwarderBalance);
  }

  /**
   * It is possible that funds were sent to this address before the contract was deployed.
   * We can flush those funds to the destination address.
   */
  function flush() {
    if (!parentAddress.call.value(this.balance)())
      throw;
  }
}

/**
 * Basic multi-signer wallet designed for use in a co-signing environment where 2 signatures are required to move funds.
 * Typically used in a 2-of-3 signing configuration. Uses ecrecover to allow for 2 signatures in a single transaction.
 */
contract WalletSimple {
  // Events
  event Deposited(address from, uint value, bytes data);
  event SafeModeActivated(address msgSender);
  event Transacted(
    address msgSender, // Address of the sender of the message initiating the transaction
    address otherSigner, // Address of the signer (second signature) used to initiate the transaction
    bytes32 operation, // Operation hash (sha3 of toAddress, value, data, expireTime, sequenceId)
    address toAddress, // The address the transaction was sent to
    uint value, // Amount of Wei sent to the address
    bytes data // Data sent when invoking the transaction
  );
  event TokenTransacted(
    address msgSender, // Address of the sender of the message initiating the transaction
    address otherSigner, // Address of the signer (second signature) used to initiate the transaction
    bytes32 operation, // Operation hash (sha3 of toAddress, value, tokenContractAddress, expireTime, sequenceId)
    address toAddress, // The address the transaction was sent to
    uint value, // Amount of token sent
    address tokenContractAddress // The contract address of the token
  );

  // Public fields
  address[] public signers; // The addresses that can co-sign transactions on the wallet
  bool public safeMode = false; // When active, wallet may only send to signer addresses

  // Internal fields
  uint constant SEQUENCE_ID_WINDOW_SIZE = 10;
  uint[10] recentSequenceIds;

  /**
   * Modifier that will execute internal code block only if the sender is an authorized signer on this wallet
   */
  modifier onlysigner {
    if (!isSigner(msg.sender)) {
      throw;
    }
    _;
  }

  /**
   * Set up a simple multi-sig wallet by specifying the signers allowed to be used on this wallet.
   * 2 signers will be required to send a transaction from this wallet.
   * Note: The sender is NOT automatically added to the list of signers.
   * Signers CANNOT be changed once they are set
   *
   * @param allowedSigners An array of signers on the wallet
   */
  function WalletSimple(address[] allowedSigners) {
    if (allowedSigners.length != 3) {
      // Invalid number of signers
      throw;
    }
    signers = allowedSigners;
  }

  /**
   * Gets called when a transaction is received without calling a method
   */
  function() payable {
    if (msg.value > 0) {
      // Fire deposited event if we are receiving funds
      Deposited(msg.sender, msg.value, msg.data);
    }
  }

  /**
   * Create a new contract (and also address) that forwards funds to this contract
   * returns address of newly created forwarder address
   */
  function createForwarder() onlysigner returns (address) {
    return new Forwarder();
  }

  /**
   * Execute a multi-signature transaction from this wallet using 2 signers: one from msg.sender and the other from ecrecover.
   * The signature is a signed form (using eth.sign) of tightly packed toAddress, value, data, expireTime and sequenceId
   * Sequence IDs are numbers starting from 1. They are used to prevent replay attacks and may not be repeated.
   *
   * @param toAddress the destination address to send an outgoing transaction
   * @param value the amount in Wei to be sent
   * @param data the data to send to the toAddress when invoking the transaction
   * @param expireTime the number of seconds since 1970 for which this transaction is valid
   * @param sequenceId the unique sequence id obtainable from getNextSequenceId
   * @param signature the result of eth.sign on the operationHash sha3(toAddress, value, data, expireTime, sequenceId)
   */
  function sendMultiSig(address toAddress, uint value, bytes data, uint expireTime, uint sequenceId, bytes signature) onlysigner {
    // Verify the other signer
    var operationHash = sha3("ETHER", toAddress, value, data, expireTime, sequenceId);
    
    var otherSigner = verifyMultiSig(toAddress, operationHash, signature, expireTime, sequenceId);

    // Success, send the transaction
    if (!(toAddress.call.value(value)(data))) {
      // Failed executing transaction
      throw;
    }
    Transacted(msg.sender, otherSigner, operationHash, toAddress, value, data);
  }
  
  /**
   * Execute a multi-signature token transfer from this wallet using 2 signers: one from msg.sender and the other from ecrecover.
   * The signature is a signed form (using eth.sign) of tightly packed toAddress, value, tokenContractAddress, expireTime and sequenceId
   * Sequence IDs are numbers starting from 1. They are used to prevent replay attacks and may not be repeated.
   *
   * @param toAddress the destination address to send an outgoing transaction
   * @param value the amount in tokens to be sent
   * @param tokenContractAddress the address of the erc20 token contract
   * @param expireTime the number of seconds since 1970 for which this transaction is valid
   * @param sequenceId the unique sequence id obtainable from getNextSequenceId
   * @param signature the result of eth.sign on the operationHash sha3(toAddress, value, tokenContractAddress, expireTime, sequenceId)
   */
  function sendMultiSigToken(address toAddress, uint value, address tokenContractAddress, uint expireTime, uint sequenceId, bytes signature) onlysigner {
    // Verify the other signer
    var operationHash = sha3("ERC20", toAddress, value, tokenContractAddress, expireTime, sequenceId);
    
    var otherSigner = verifyMultiSig(toAddress, operationHash, signature, expireTime, sequenceId);
    
    ERC20Interface instance = ERC20Interface(tokenContractAddress);
    if (!instance.transfer(toAddress, value)) {
        throw;
    }
    TokenTransacted(msg.sender, otherSigner, operationHash, toAddress, value, tokenContractAddress);
  }

  /**
   * Execute a token flush from one of the forwarder addresses. This transfer needs only a single signature and can be done by any signer
   *
   * @param forwarderAddress the address of the forwarder address to flush the tokens from
   * @param tokenContractAddress the address of the erc20 token contract
   */
  function flushForwarderTokens(address forwarderAddress, address tokenContractAddress) onlysigner {    
    Forwarder forwarder = Forwarder(forwarderAddress);
    forwarder.flushTokens(tokenContractAddress);
  }  
  
  /**
   * Do common multisig verification for both eth sends and erc20token transfers
   *
   * @param toAddress the destination address to send an outgoing transaction
   * @param operationHash the sha3 of the toAddress, value, data/tokenContractAddress and expireTime
   * @param signature the tightly packed signature of r, s, and v as an array of 65 bytes (returned by eth.sign)
   * @param expireTime the number of seconds since 1970 for which this transaction is valid
   * @param sequenceId the unique sequence id obtainable from getNextSequenceId
   * returns address of the address to send tokens or eth to
   */
  function verifyMultiSig(address toAddress, bytes32 operationHash, bytes signature, uint expireTime, uint sequenceId) private returns (address) {

    var otherSigner = recoverAddressFromSignature(operationHash, signature);

    // Verify if we are in safe mode. In safe mode, the wallet can only send to signers
    if (safeMode && !isSigner(toAddress)) {
      // We are in safe mode and the toAddress is not a signer. Disallow!
      throw;
    }
    // Verify that the transaction has not expired
    if (expireTime < block.timestamp) {
      // Transaction expired
      throw;
    }

    // Try to insert the sequence ID. Will throw if the sequence id was invalid
    tryInsertSequenceId(sequenceId);

    if (!isSigner(otherSigner)) {
      // Other signer not on this wallet or operation does not match arguments
      throw;
    }
    if (otherSigner == msg.sender) {
      // Cannot approve own transaction
      throw;
    }

    return otherSigner;
  }

  /**
   * Irrevocably puts contract into safe mode. When in this mode, transactions may only be sent to signing addresses.
   */
  function activateSafeMode() onlysigner {
    safeMode = true;
    SafeModeActivated(msg.sender);
  }

  /**
   * Determine if an address is a signer on this wallet
   * @param signer address to check
   * returns boolean indicating whether address is signer or not
   */
  function isSigner(address signer) returns (bool) {
    // Iterate through all signers on the wallet and
    for (uint i = 0; i < signers.length; i++) {
      if (signers[i] == signer) {
        return true;
      }
    }
    return false;
  }

  /**
   * Gets the second signer's address using ecrecover
   * @param operationHash the sha3 of the toAddress, value, data/tokenContractAddress and expireTime
   * @param signature the tightly packed signature of r, s, and v as an array of 65 bytes (returned by eth.sign)
   * returns address recovered from the signature
   */
  function recoverAddressFromSignature(bytes32 operationHash, bytes signature) private returns (address) {
    if (signature.length != 65) {
      throw;
    }
    // We need to unpack the signature, which is given as an array of 65 bytes (from eth.sign)
    bytes32 r;
    bytes32 s;
    uint8 v;
    assembly {
      r := mload(add(signature, 32))
      s := mload(add(signature, 64))
      v := and(mload(add(signature, 65)), 255)
    }
    if (v < 27) {
      v += 27; // Ethereum versions are 27 or 28 as opposed to 0 or 1 which is submitted by some signing libs
    }
    return ecrecover(operationHash, v, r, s);
  }

  /**
   * Verify that the sequence id has not been used before and inserts it. Throws if the sequence ID was not accepted.
   * We collect a window of up to 10 recent sequence ids, and allow any sequence id that is not in the window and
   * greater than the minimum element in the window.
   * @param sequenceId to insert into array of stored ids
   */
  function tryInsertSequenceId(uint sequenceId) onlysigner private {
    // Keep a pointer to the lowest value element in the window
    uint lowestValueIndex = 0;
    for (uint i = 0; i < SEQUENCE_ID_WINDOW_SIZE; i++) {
      if (recentSequenceIds[i] == sequenceId) {
        // This sequence ID has been used before. Disallow!
        throw;
      }
      if (recentSequenceIds[i] < recentSequenceIds[lowestValueIndex]) {
        lowestValueIndex = i;
      }
    }
    if (sequenceId < recentSequenceIds[lowestValueIndex]) {
      // The sequence ID being used is lower than the lowest value in the window
      // so we cannot accept it as it may have been used before
      throw;
    }
    if (sequenceId > (recentSequenceIds[lowestValueIndex] + 10000)) {
      // Block sequence IDs which are much higher than the lowest value
      // This prevents people blocking the contract by using very large sequence IDs quickly
      throw;
    }
    recentSequenceIds[lowestValueIndex] = sequenceId;
  }

  /**
   * Gets the next available sequence ID for signing when using executeAndConfirm
   * returns the sequenceId one higher than the highest currently stored
   */
  function getNextSequenceId() returns (uint) {
    uint highestSequenceId = 0;
    for (uint i = 0; i < SEQUENCE_ID_WINDOW_SIZE; i++) {
      if (recentSequenceIds[i] > highestSequenceId) {
        highestSequenceId = recentSequenceIds[i];
      }
    }
    return highestSequenceId + 1;
  }
}

Contract Security Audit

Contract ABI

[{"constant":true,"inputs":[],"name":"parentAddress","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"tokenContractAddress","type":"address"}],"name":"flushTokens","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"flush","outputs":[],"payable":false,"type":"function"},{"inputs":[],"payable":false,"type":"constructor"},{"payable":true,"type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"from","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"data","type":"bytes"}],"name":"ForwarderDeposited","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"tokenContractAddress","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"TokensFlushed","type":"event"}]

Deployed Bytecode

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

Swarm Source

bzzr://d0f8838ba17108a895d34ae8ef3bff4e0dc9d639c3c51921fee1d17eaa803721

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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.