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Contract Overview
Balance: 0 Ether
Ether Value: $0
Transactions: 154 txns
Misc
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Contract Creator: 0x1522900b6dafac587d499a862861c0869be6e428at txn 0x05da4667e9a25e3334faaf1ccb51b0d8389cdb4cb36f2fdeb150f86b06d30fb6
Token Balances:
 Latest 25 txns from a total Of 154 transactions

TxHash Age From To Value [TxFee]
0xc315536de5ee9709b8c4f5d45b2a066da94967e8421a2429c0cfce5ea712d8666 days 2 hrs agoBinance_4  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e2,999.99 Ether0.002190825
0xac1ca99cafea97c0621f03717d1b4624eaa41e9849aa4c5aa194400d2fd081576 days 9 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e5,000 Ether0.00074151
0x66ff1cfb8a2f5663646b4b4758921caebb0ff1596dccdeb54f5a53a54ca548317 days 20 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e1,500 Ether0.00074151
0xcde5f04391e04aeefbc6465ffc0d3e5ef558f7dec8e553195698960bc505ac198 days 20 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e3,000 Ether0.00074151
0x20df39bfd2129dcd5829dbd9aee8176f040e735f8c42915da21d26f49d333ff19 days 15 hrs agoBinance_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e999.99 Ether0.002190825
0x5a3280f6a6c611158efbd6ecf5b23f99f6928a0847556d417ed25e043196b9c59 days 15 hrs agoBinance_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e3,999.99 Ether0.002190825
0x5951553e3f550b8e777c7dd3c5e92fcdfd3068f60df7e73e39f534650a071dbe10 days 22 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e3,000 Ether0.002123415
0xad1714a54e27c1a5ca685b0047df238a58fc48ea990de717f4323a07741d6a9325 days 16 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e5,000 Ether0.00074151
0xee1d37606a6dd209b078f97f8726d5eeef2ea4d00bcd2e8570845a3dd27e556631 days 10 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e3,000 Ether0.00074151
0x29a79b748f25edd0ea232fc9e28db7036a3e1ad95f51cffa9509699f8f6a866b31 days 10 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e3,000 Ether0.00074151
0x5001aea305e0ac25f6696449f03976d85dd672ec28ba38f91f83b168b8a8cdb036 days 23 hrs agoBittrex_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e9,999.994 Ether0.0033705
0xb23ca80b3ec1dc038aa1bd102862c4930836a2b28c7f90d81bb7b1afca77806945 days 8 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e5,000 Ether0.001853775
0x45b6f6086a1e7c78183d429310e10d08a5da0a4939cea72458d684772084a9f245 days 16 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e3,000 Ether0.0026795475
0x3cd7c791b0862fb55f81e3ec1406efb22047438e253e327938e88d9af4db294548 days 1 hr agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e5,000 Ether0.00283122
0xd5c88ce17ce7dc5cc6df378e624ca6f668495cf19380fa7abd9e114bb156a89951 days 14 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e5,000 Ether0.00074151
0xc56d3b33b638e72d4598c07ab84774fec8812ae1a263d5452ab5a1c8e960eefe53 days 20 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e4,000 Ether0.00074151
0x40932970223ed021b4a79fa5f1898913595fd448695af332f392b5ab3508d23a54 days 4 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e5,000 Ether0.00074151
0x01861cffc2bd0e5d10f942f3f1f776ad3c107fd6f4161ac48e8d7ec475c6e1c454 days 6 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e2,000 Ether0.00074151
0x320b10ce17e24c87b6e5011a6f18006f6577eb261d1c6f0b4ee9c7dfb89a236f54 days 10 hrs agoBinance_4  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e1,249.99 Ether0.001718955
0x9f8b0fd1a63de9f9d1bfa18e63cf840390f99a3f066abc99c29758e7349e726454 days 19 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e2,100 Ether0.00074151
0xb32b9e96a8f8642dcf9ec535fe4fe4c9c2e26feb3a9d807922f02d1ac3f28d6d54 days 19 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e2,000 Ether0.00074151
0x0840adfa0ac3938d65f97249d9e4f445790b3795964895496a793331a5a8e7c254 days 23 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e5,000 Ether0.00074151
0xef65c13fbfe40b52c5b4714e3140d84e2b5fcc55381517ce41f27a805f67d04d55 days 23 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e5,000 Ether0.00074151
0x1874bff7909a933f0afc1535d2ea47b3a07f42ae0e7f9127cbe5ce907edffbdb56 days 4 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e5,000 Ether0.00074151
0xfe4aebdc824256443b1fc22929790001834473952f132b8acd7a687e7fba833062 days 17 hrs agoGemini_1  IN   0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e3,000 Ether0.00074151
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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
0xc315536de5ee9709b8c4f5d45b2a066da94967e8421a2429c0cfce5ea712d86661444346 days 2 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4282,999.99 Ether
0xac1ca99cafea97c0621f03717d1b4624eaa41e9849aa4c5aa194400d2fd0815761426146 days 9 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4285,000 Ether
0x66ff1cfb8a2f5663646b4b4758921caebb0ff1596dccdeb54f5a53a54ca5483161341797 days 20 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4281,500 Ether
0xcde5f04391e04aeefbc6465ffc0d3e5ef558f7dec8e553195698960bc505ac1961281838 days 20 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4283,000 Ether
0x20df39bfd2129dcd5829dbd9aee8176f040e735f8c42915da21d26f49d333ff161235529 days 15 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e428999.99 Ether
0x5a3280f6a6c611158efbd6ecf5b23f99f6928a0847556d417ed25e043196b9c561234999 days 15 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4283,999.99 Ether
0x5951553e3f550b8e777c7dd3c5e92fcdfd3068f60df7e73e39f534650a071dbe611597410 days 22 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4283,000 Ether
0xad1714a54e27c1a5ca685b0047df238a58fc48ea990de717f4323a07741d6a93602847325 days 16 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4285,000 Ether
0xee1d37606a6dd209b078f97f8726d5eeef2ea4d00bcd2e8570845a3dd27e5566599457131 days 10 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4283,000 Ether
0x29a79b748f25edd0ea232fc9e28db7036a3e1ad95f51cffa9509699f8f6a866b599455531 days 10 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4283,000 Ether
0x5001aea305e0ac25f6696449f03976d85dd672ec28ba38f91f83b168b8a8cdb0596206636 days 23 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4289,999.994 Ether
0xb23ca80b3ec1dc038aa1bd102862c4930836a2b28c7f90d81bb7b1afca778069591292645 days 8 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4285,000 Ether
0x45b6f6086a1e7c78183d429310e10d08a5da0a4939cea72458d684772084a9f2591102445 days 16 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4283,000 Ether
0x3cd7c791b0862fb55f81e3ec1406efb22047438e253e327938e88d9af4db2945589712748 days 1 hr ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4285,000 Ether
0xd5c88ce17ce7dc5cc6df378e624ca6f668495cf19380fa7abd9e114bb156a899587642851 days 14 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4285,000 Ether
0xc56d3b33b638e72d4598c07ab84774fec8812ae1a263d5452ab5a1c8e960eefe586334453 days 20 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4284,000 Ether
0x40932970223ed021b4a79fa5f1898913595fd448695af332f392b5ab3508d23a586129154 days 4 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4285,000 Ether
0x01861cffc2bd0e5d10f942f3f1f776ad3c107fd6f4161ac48e8d7ec475c6e1c4586088754 days 6 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4282,000 Ether
0x320b10ce17e24c87b6e5011a6f18006f6577eb261d1c6f0b4ee9c7dfb89a236f585980454 days 10 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4281,249.99 Ether
0x9f8b0fd1a63de9f9d1bfa18e63cf840390f99a3f066abc99c29758e7349e7264585775254 days 19 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4282,100 Ether
0xb32b9e96a8f8642dcf9ec535fe4fe4c9c2e26feb3a9d807922f02d1ac3f28d6d585769154 days 19 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4282,000 Ether
0x0840adfa0ac3938d65f97249d9e4f445790b3795964895496a793331a5a8e7c2585686454 days 23 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4285,000 Ether
0xef65c13fbfe40b52c5b4714e3140d84e2b5fcc55381517ce41f27a805f67d04d585107155 days 23 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4285,000 Ether
0x1874bff7909a933f0afc1535d2ea47b3a07f42ae0e7f9127cbe5ce907edffbdb584994356 days 4 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4285,000 Ether
0xfe4aebdc824256443b1fc22929790001834473952f132b8acd7a687e7fba8330581168262 days 17 hrs ago0xc5dcb4839087f39ebe34c8c18a05dcfb5806d89e0x1522900b6dafac587d499a862861c0869be6e4283,000 Ether
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Warning: The compiled contract might be susceptible to NestedArrayFunctionCallDecoder (medium-severity), ZeroFunctionSelector (very low-severity) Solidity compiler bugs.

Contract Source Code Verified (Similar match)
Note: Displaying similar matching verified source code at contract 0xe236aebe408c6363deadff4db15938708fe07d3f(excluding Constructor Arguments if any)
Contract Name: Forwarder
Compiler Version: 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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