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Contract Overview
Balance: 0 Ether
Ether Value: $0
Transactions: 313 txns
 Latest 25 txns From a total of 313 Transactions

TxHash Age From To Value [TxFee]
0x399899cf59422caefdfdcceb3b529a0f7ae2ea135f96ac2c903355139ec744d05 days 1 hr agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30077124 Ether0.000235935
0x4044a7163f82afddb6ed3196bcac720f6becee62942df745fcf808e1b2c417347 days 13 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30195474 Ether0.000222453
0xab66881d2ec99c8565e2e693687b095b635eb24e9c73b6c2182a0b975deb777610 days 1 hr agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30162838 Ether0.0002190825
0xa147bc8716669f929707799e2fc3db4ccb8a7a8be9e7ae116d6f380adac3553612 days 10 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30192564 Ether0.000235935
0xe256a4864817cddb10ba7b18ec93d8cdd5e1fdc988f18d479d5e67adfce8cc4914 days 21 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30351471 Ether0.000168525
0xe1bd70db3d922ce854a0df19a4bedec12f27dc5e1fa77a5054574124decf887116 days 5 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.31208257 Ether0.00013482
0x0466b6f47c4ace3661a1594d427e8180b914a596655ef0d71717cb7f723e0a6e16 days 22 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.3050118 Ether0.000235935
0x5d6044b678c7994424aa3daf4696a95da5d590e17baf763a5bd7afa406fc6f3e17 days 20 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30633853 Ether0.0001179675
0xe584911aef08253525314a64e72e4c0a80238edfffdd41e67c020ebcfc63bc0118 days 22 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30228307 Ether0.000168525
0x9ad0672eaf116cd236696bc1fc6e821f2127a794abb13131755efd05963417e819 days 20 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30193558 Ether0.00013482
0x47b94589e74403be35ec238e9ac43744fe79d53607ad44b55708181769e3a07620 days 22 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30516828 Ether0.0000977445
0x9ada5727968879321b337854955f4291a678c9c5c127e17d72835226a2e8df7821 days 23 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30326915 Ether0.00020223
0x8bc19ac7cbadb3b2952bdbeb1e692aea8c59559e4de14c7873fd8fdebeabd0b723 days 5 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30912057 Ether0.000107856
0xf3b019dd43ac496af13b77306e44195f88ba3c0eaf302e1b5d3d5a38667a7bd524 days 6 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.31169121 Ether0.00013482
0x9f5ca1d54fd2da4fd1ff9167d793140d29d242d8413f4521cf831088f1ab131e25 days 6 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.3121691 Ether0.000168525
0xb98c968fc66b23c4fd82b69a403742062f5efdf4f383d66eda4214746d7ae38d26 days 5 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.31436981 Ether0.000101115
0xd6904c19b3363911180e8fb376f5982172d990646ad638cbfd02de79f09a424a27 days 9 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30929986 Ether0.000101115
0xce591cd2ad2f535bc1a86a83bb87554f53925ef7e8ccf0dbb6e4cb427430821328 days 12 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30422634 Ether0.000107856
0x1a7d534b3d050f985e8308dcb13b26f5e9441e7647178c620dca35d5a08fe0a329 days 18 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30262757 Ether0.000244192725
0xaf3456448c9f730136e77fd0b468f6e391fa59e25ed22ba2917ac05a56fa493830 days 20 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30226906 Ether0.00013482
0xff153317902e32b4a76adbc478f631cce8a00c7e138ea98e7b5037dd5733d83731 days 23 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30350942 Ether0.0001718955
0x9b176989195e130a33ed805a1bca7fb4a09b8bd4a0d9f3ef1938c5266b2c542033 days 6 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.3061223 Ether0.00006741
0x3dc32213b288829c05d7a3ceb0a378b544de8b7aa6ec80b40f30331a8048971634 days 9 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.31285773 Ether0.00006741
0x665e3c46b59598f2550c93a332ded7ce3c5daae0756c3c1648ac9b0ed6a4a0bf35 days 13 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.30298723 Ether0.00016683975
0xfd14746e2786440d11d8766403c945e2a8ea554547e73ecf6a67010c27d44dc236 days 15 hrs agoCoinotron_3  IN   0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0.31116671 Ether0.000560345625
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 Internal Transactions as a result of Contract Execution
 Latest 25 Internal Txns, Click Here To View More View All
ParentTxHash Block Age From To Value
0x399899cf59422caefdfdcceb3b529a0f7ae2ea135f96ac2c903355139ec744d063521515 days 1 hr ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30077124 Ether
0x4044a7163f82afddb6ed3196bcac720f6becee62942df745fcf808e1b2c4173463369707 days 13 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30195474 Ether
0xab66881d2ec99c8565e2e693687b095b635eb24e9c73b6c2182a0b975deb7776632187310 days 1 hr ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30162838 Ether
0xa147bc8716669f929707799e2fc3db4ccb8a7a8be9e7ae116d6f380adac35536630751412 days 10 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30192564 Ether
0xe256a4864817cddb10ba7b18ec93d8cdd5e1fdc988f18d479d5e67adfce8cc49629280714 days 21 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30351471 Ether
0xe1bd70db3d922ce854a0df19a4bedec12f27dc5e1fa77a5054574124decf8871628506216 days 5 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.31208257 Ether
0x0466b6f47c4ace3661a1594d427e8180b914a596655ef0d71717cb7f723e0a6e628076416 days 22 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.3050118 Ether
0x5d6044b678c7994424aa3daf4696a95da5d590e17baf763a5bd7afa406fc6f3e627529317 days 20 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30633853 Ether
0xe584911aef08253525314a64e72e4c0a80238edfffdd41e67c020ebcfc63bc01626891618 days 22 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30228307 Ether
0x9ad0672eaf116cd236696bc1fc6e821f2127a794abb13131755efd05963417e8626333519 days 20 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30193558 Ether
0x47b94589e74403be35ec238e9ac43744fe79d53607ad44b55708181769e3a076625675520 days 22 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30516828 Ether
0x9ada5727968879321b337854955f4291a678c9c5c127e17d72835226a2e8df78625072421 days 23 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30326915 Ether
0x8bc19ac7cbadb3b2952bdbeb1e692aea8c59559e4de14c7873fd8fdebeabd0b7624335423 days 5 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30912057 Ether
0xf3b019dd43ac496af13b77306e44195f88ba3c0eaf302e1b5d3d5a38667a7bd5623711624 days 6 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.31169121 Ether
0x9f5ca1d54fd2da4fd1ff9167d793140d29d242d8413f4521cf831088f1ab131e623134525 days 6 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.3121691 Ether
0xb98c968fc66b23c4fd82b69a403742062f5efdf4f383d66eda4214746d7ae38d622558826 days 5 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.31436981 Ether
0xd6904c19b3363911180e8fb376f5982172d990646ad638cbfd02de79f09a424a621879327 days 9 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30929986 Ether
0xce591cd2ad2f535bc1a86a83bb87554f53925ef7e8ccf0dbb6e4cb4274308213621201628 days 12 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30422634 Ether
0x1a7d534b3d050f985e8308dcb13b26f5e9441e7647178c620dca35d5a08fe0a3620465629 days 18 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30262757 Ether
0xaf3456448c9f730136e77fd0b468f6e391fa59e25ed22ba2917ac05a56fa4938619823130 days 20 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30226906 Ether
0xff153317902e32b4a76adbc478f631cce8a00c7e138ea98e7b5037dd5733d837619157731 days 23 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30350942 Ether
0x9b176989195e130a33ed805a1bca7fb4a09b8bd4a0d9f3ef1938c5266b2c5420618387233 days 6 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.3061223 Ether
0x3dc32213b288829c05d7a3ceb0a378b544de8b7aa6ec80b40f30331a80489716617727634 days 9 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.31285773 Ether
0x665e3c46b59598f2550c93a332ded7ce3c5daae0756c3c1648ac9b0ed6a4a0bf617021435 days 13 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.30298723 Ether
0xfd14746e2786440d11d8766403c945e2a8ea554547e73ecf6a67010c27d44dc2616386936 days 15 hrs ago0x5e9f9741c0485d38dc387bfa64bb4ff46186d62d0x1522900b6dafac587d499a862861c0869be6e4280.31116671 Ether
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Warning: The Compiled Contract might be susceptible to ExpExponentCleanup (medium/high-severity), NestedArrayFunctionCallDecoder (medium-severity), ZeroFunctionSelector (very low-severity) SolidityCompiler Bugs.

Contract Source Code Verified (Similar Match)
Note: Displaying Similar Match Verified Source Code At Contract 0xe236aebe408c6363deadff4db15938708fe07d3f(Excluding Constructor Arguments if_any)
Contract Name: Forwarder
Compiler Text: v0.4.16-nightly.2017.8.11+commit.c84de7fa
Optimization Enabled: Yes
Runs (Optimiser):  200



  Contract Source Code   Find Similiar Contracts

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 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"}]

  Contract Creation Code Switch To Opcodes View
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

   Swarm Source:
bzzr://d0f8838ba17108a895d34ae8ef3bff4e0dc9d639c3c51921fee1d17eaa803721

 

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