ETH Price: $3,486.67 (+2.00%)

Contract

0x48EC5560bFD59b95859965cCE48cC244CFDF6b0c
 

Overview

ETH Balance

17,432.258532926759004965 ETH

Eth Value

$60,780,539.77 (@ $3,486.67/ETH)

Token Holdings

Multichain Info

Transaction Hash
Method
Block
From
To
Send Multi Sig T...214750892024-12-24 21:43:478 mins ago1735076627IN
Bitstamp Bitstamp: Wallet
0 ETH0.00060715.48328746
Send Multi Sig T...214750812024-12-24 21:42:1110 mins ago1735076531IN
Bitstamp Bitstamp: Wallet
0 ETH0.000468054.99976775
Send Multi Sig T...214750732024-12-24 21:40:3511 mins ago1735076435IN
Bitstamp Bitstamp: Wallet
0 ETH0.000496425.30232836
Send Multi Sig214749922024-12-24 21:24:2328 mins ago1735075463IN
Bitstamp Bitstamp: Wallet
0 ETH0.000444175.67725644
Send Multi Sig214748712024-12-24 20:59:5952 mins ago1735073999IN
Bitstamp Bitstamp: Wallet
0 ETH0.000592635.74092727
Send Multi Sig T...214747992024-12-24 20:45:351 hr ago1735073135IN
Bitstamp Bitstamp: Wallet
0 ETH0.000609546.11007222
Send Multi Sig214747682024-12-24 20:39:111 hr ago1735072751IN
Bitstamp Bitstamp: Wallet
0 ETH0.000471366.02688649
Send Multi Sig T...214747662024-12-24 20:38:471 hr ago1735072727IN
Bitstamp Bitstamp: Wallet
0 ETH0.000633636.04281611
Send Multi Sig214747332024-12-24 20:32:111 hr ago1735072331IN
Bitstamp Bitstamp: Wallet
0 ETH0.000468235.98663117
Send Multi Sig214747232024-12-24 20:30:111 hr ago1735072211IN
Bitstamp Bitstamp: Wallet
0 ETH0.000543685.26754245
Send Multi Sig T...214746892024-12-24 20:23:231 hr ago1735071803IN
Bitstamp Bitstamp: Wallet
0 ETH0.000586365.59152968
Send Multi Sig214746882024-12-24 20:23:111 hr ago1735071791IN
Bitstamp Bitstamp: Wallet
0 ETH0.000552665.88069806
Send Multi Sig T...214746842024-12-24 20:22:231 hr ago1735071743IN
Bitstamp Bitstamp: Wallet
0 ETH0.000525334.85743193
Send Multi Sig T...214746252024-12-24 20:10:351 hr ago1735071035IN
Bitstamp Bitstamp: Wallet
0 ETH0.000905588.1698801
Send Multi Sig214746012024-12-24 20:05:471 hr ago1735070747IN
Bitstamp Bitstamp: Wallet
0 ETH0.000715866.93468184
Send Multi Sig T...214745922024-12-24 20:03:591 hr ago1735070639IN
Bitstamp Bitstamp: Wallet
0 ETH0.000677036.43798405
Send Multi Sig T...214745912024-12-24 20:03:471 hr ago1735070627IN
Bitstamp Bitstamp: Wallet
0 ETH0.00068326.17277383
Send Multi Sig214745772024-12-24 20:00:591 hr ago1735070459IN
Bitstamp Bitstamp: Wallet
0 ETH0.000505876.46747853
Send Multi Sig T...214745252024-12-24 19:50:352 hrs ago1735069835IN
Bitstamp Bitstamp: Wallet
0 ETH0.000738436.67082935
Send Multi Sig214744502024-12-24 19:35:352 hrs ago1735068935IN
Bitstamp Bitstamp: Wallet
0 ETH0.000520316.65343435
Send Multi Sig214744042024-12-24 19:26:112 hrs ago1735068371IN
Bitstamp Bitstamp: Wallet
0 ETH0.000441045.63889389
Send Multi Sig T...214743792024-12-24 19:21:112 hrs ago1735068071IN
Bitstamp Bitstamp: Wallet
0 ETH0.000593516.33908515
Send Multi Sig T...214743642024-12-24 19:18:112 hrs ago1735067891IN
Bitstamp Bitstamp: Wallet
0 ETH0.000508515.43076525
Send Multi Sig T...214743592024-12-24 19:17:112 hrs ago1735067831IN
Bitstamp Bitstamp: Wallet
0 ETH0.000698636.30924826
Send Multi Sig T...214743512024-12-24 19:15:352 hrs ago1735067735IN
Bitstamp Bitstamp: Wallet
0 ETH0.000622716.65203744
View all transactions

Latest 25 internal transactions (View All)

Advanced mode:
Parent Transaction Hash Block
From
To
214749922024-12-24 21:24:2328 mins ago1735075463
Bitstamp: Wallet
0.927224 ETH
214748712024-12-24 20:59:5952 mins ago1735073999
Bitstamp: Wallet
0.00434739 ETH
214747682024-12-24 20:39:111 hr ago1735072751
Bitstamp: Wallet
0.70510579 ETH
214747332024-12-24 20:32:111 hr ago1735072331
Bitstamp: Wallet
0.013479 ETH
214747232024-12-24 20:30:111 hr ago1735072211
Bitstamp: Wallet
0.03181908 ETH
214746882024-12-24 20:23:111 hr ago1735071791
Bitstamp: Wallet
1.00090386 ETH
214746572024-12-24 20:16:591 hr ago1735071419
Bitstamp Bitstamp: Wallet
478.39380725 ETH
214746012024-12-24 20:05:471 hr ago1735070747
Bitstamp: Wallet
0.05186996 ETH
214745772024-12-24 20:00:591 hr ago1735070459
Bitstamp: Wallet
3.9945 ETH
214744502024-12-24 19:35:352 hrs ago1735068935
Bitstamp: Wallet
0.02250466 ETH
214744042024-12-24 19:26:112 hrs ago1735068371
Bitstamp: Wallet
11.147 ETH
214742892024-12-24 19:02:592 hrs ago1735066979
Bitstamp: Wallet
0.04571261 ETH
214742742024-12-24 18:59:592 hrs ago1735066799
Bitstamp: Wallet
15 ETH
214741832024-12-24 18:41:353 hrs ago1735065695
Bitstamp: Wallet
0.02408891 ETH
214740462024-12-24 18:14:113 hrs ago1735064051
Bitstamp: Wallet
0.071842 ETH
214739812024-12-24 18:01:113 hrs ago1735063271
Bitstamp: Wallet
1.4945 ETH
214737562024-12-24 17:16:114 hrs ago1735060571
Bitstamp: Wallet
0.05427 ETH
214737012024-12-24 17:05:114 hrs ago1735059911
Bitstamp: Wallet
2 ETH
214736812024-12-24 17:01:114 hrs ago1735059671
Bitstamp: Wallet
1.4945 ETH
214736092024-12-24 16:46:355 hrs ago1735058795
Bitstamp: Wallet
0.148374 ETH
214735452024-12-24 16:33:475 hrs ago1735058027
Bitstamp: Wallet
20 ETH
214735432024-12-24 16:33:235 hrs ago1735058003
Bitstamp: Wallet
20 ETH
214734922024-12-24 16:22:595 hrs ago1735057379
Bitstamp: Wallet
0.18 ETH
214734642024-12-24 16:17:235 hrs ago1735057043
Bitstamp Bitstamp: Wallet
3,195.42457405 ETH
214733662024-12-24 15:57:355 hrs ago1735055855
Bitstamp: Wallet
16.85308875 ETH
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Minimal Proxy Contract for 0xe8e847cf573fc8ed75621660a36affd18c543d7e

Contract Name:
WalletSimple

Compiler Version
v0.7.5+commit.eb77ed08

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, Apache-2.0 license

Contract Source Code (Solidity Multiple files format)

File 1 of 4: WalletSimple.sol
// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.7.5;
import './TransferHelper.sol';
import './Forwarder.sol';
import './ERC20Interface.sol';

/**
 *
 * WalletSimple
 * ============
 *
 * 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.
 *
 * The first signature is created on the operation hash (see Data Formats) and passed to sendMultiSig/sendMultiSigToken
 * The signer is determined by verifyMultiSig().
 *
 * The second signature is created by the submitter of the transaction and determined by msg.signer.
 *
 * Data Formats
 * ============
 *
 * The signature is created with ethereumjs-util.ecsign(operationHash).
 * Like the eth_sign RPC call, it packs the values as a 65-byte array of [r, s, v].
 * Unlike eth_sign, the message is not prefixed.
 *
 * The operationHash the result of keccak256(prefix, toAddress, value, data, expireTime).
 * For ether transactions, `prefix` is "ETHER".
 * For token transaction, `prefix` is "ERC20" and `data` is the tokenContractAddress.
 *
 *
 */
contract WalletSimple {
  // Events
  event Deposited(address from, uint256 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 (see Data Formats)
    address toAddress, // The address the transaction was sent to
    uint256 value, // Amount of Wei sent to the address
    bytes data // Data sent when invoking the transaction
  );

  event BatchTransfer(address sender, address recipient, uint256 value);
  // this event shows the other signer and the operation hash that they signed
  // specific batch transfer events are emitted in Batcher
  event BatchTransacted(
    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 (see Data Formats)
  );

  // Public fields
  mapping(address => bool) 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
  bool public initialized = false; // True if the contract has been initialized

  // Internal fields
  uint256 private constant MAX_SEQUENCE_ID_INCREASE = 10000;
  uint256 constant SEQUENCE_ID_WINDOW_SIZE = 10;
  uint256[SEQUENCE_ID_WINDOW_SIZE] recentSequenceIds;

  /**
   * 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 init(address[] calldata allowedSigners) external onlyUninitialized {
    require(allowedSigners.length == 3, 'Invalid number of signers');

    for (uint8 i = 0; i < allowedSigners.length; i++) {
      require(allowedSigners[i] != address(0), 'Invalid signer');
      signers[allowedSigners[i]] = true;
    }
    initialized = true;
  }

  /**
   * Get the network identifier that signers must sign over
   * This provides protection signatures being replayed on other chains
   * This must be a virtual function because chain-specific contracts will need
   *    to override with their own network ids. It also can't be a field
   *    to allow this contract to be used by proxy with delegatecall, which will
   *    not pick up on state variables
   */
  function getNetworkId() internal virtual pure returns (string memory) {
    return 'ETHER';
  }

  /**
   * Get the network identifier that signers must sign over for token transfers
   * This provides protection signatures being replayed on other chains
   * This must be a virtual function because chain-specific contracts will need
   *    to override with their own network ids. It also can't be a field
   *    to allow this contract to be used by proxy with delegatecall, which will
   *    not pick up on state variables
   */
  function getTokenNetworkId() internal virtual pure returns (string memory) {
    return 'ERC20';
  }

  /**
   * Get the network identifier that signers must sign over for batch transfers
   * This provides protection signatures being replayed on other chains
   * This must be a virtual function because chain-specific contracts will need
   *    to override with their own network ids. It also can't be a field
   *    to allow this contract to be used by proxy with delegatecall, which will
   *    not pick up on state variables
   */
  function getBatchNetworkId() internal virtual pure returns (string memory) {
    return 'ETHER-Batch';
  }

  /**
   * 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) public view returns (bool) {
    return signers[signer];
  }

  /**
   * Modifier that will execute internal code block only if the sender is an authorized signer on this wallet
   */
  modifier onlySigner {
    require(isSigner(msg.sender), 'Non-signer in onlySigner method');
    _;
  }

  /**
   * Modifier that will execute internal code block only if the contract has not been initialized yet
   */
  modifier onlyUninitialized {
    require(!initialized, 'Contract already initialized');
    _;
  }

  /**
   * Gets called when a transaction is received with data that does not match any other method
   */
  fallback() external payable {
    if (msg.value > 0) {
      // Fire deposited event if we are receiving funds
      Deposited(msg.sender, msg.value, msg.data);
    }
  }

  /**
   * Gets called when a transaction is received with ether and no data
   */
  receive() external payable {
    if (msg.value > 0) {
      // Fire deposited event if we are receiving funds
      Deposited(msg.sender, msg.value, msg.data);
    }
  }

  /**
   * Execute a multi-signature transaction from this wallet using 2 signers: one from msg.sender and the other from ecrecover.
   * 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 see Data Formats
   */
  function sendMultiSig(
    address toAddress,
    uint256 value,
    bytes calldata data,
    uint256 expireTime,
    uint256 sequenceId,
    bytes calldata signature
  ) external onlySigner {
    // Verify the other signer
    bytes32 operationHash = keccak256(
      abi.encodePacked(
        getNetworkId(),
        toAddress,
        value,
        data,
        expireTime,
        sequenceId
      )
    );

    address otherSigner = verifyMultiSig(
      toAddress,
      operationHash,
      signature,
      expireTime,
      sequenceId
    );

    // Success, send the transaction
    (bool success, ) = toAddress.call{ value: value }(data);
    require(success, 'Call execution failed');

    emit Transacted(
      msg.sender,
      otherSigner,
      operationHash,
      toAddress,
      value,
      data
    );
  }

  /**
   * Execute a batched multi-signature transaction from this wallet using 2 signers: one from msg.sender and the other from ecrecover.
   * Sequence IDs are numbers starting from 1. They are used to prevent replay attacks and may not be repeated.
   * The recipients and values to send are encoded in two arrays, where for index i, recipients[i] will be sent values[i].
   *
   * @param recipients The list of recipients to send to
   * @param values The list of values to send to
   * @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 see Data Formats
   */
  function sendMultiSigBatch(
    address[] calldata recipients,
    uint256[] calldata values,
    uint256 expireTime,
    uint256 sequenceId,
    bytes calldata signature
  ) external onlySigner {
    require(recipients.length != 0, 'Not enough recipients');
    require(
      recipients.length == values.length,
      'Unequal recipients and values'
    );
    require(recipients.length < 256, 'Too many recipients, max 255');

    // Verify the other signer
    bytes32 operationHash = keccak256(
      abi.encodePacked(
        getBatchNetworkId(),
        recipients,
        values,
        expireTime,
        sequenceId
      )
    );

    // the first parameter (toAddress) is used to ensure transactions in safe mode only go to a signer
    // if in safe mode, we should use normal sendMultiSig to recover, so this check will always fail if in safe mode
    require(!safeMode, 'Batch in safe mode');
    address otherSigner = verifyMultiSig(
      address(0x0),
      operationHash,
      signature,
      expireTime,
      sequenceId
    );

    batchTransfer(recipients, values);
    emit BatchTransacted(msg.sender, otherSigner, operationHash);
  }

  /**
   * Transfer funds in a batch to each of recipients
   * @param recipients The list of recipients to send to
   * @param values The list of values to send to recipients.
   *  The recipient with index i in recipients array will be sent values[i].
   *  Thus, recipients and values must be the same length
   */
  function batchTransfer(
    address[] calldata recipients,
    uint256[] calldata values
  ) internal {
    for (uint256 i = 0; i < recipients.length; i++) {
      require(address(this).balance >= values[i], 'Insufficient funds');

      (bool success, ) = recipients[i].call{ value: values[i] }('');
      require(success, 'Call failed');

      emit BatchTransfer(msg.sender, recipients[i], values[i]);
    }
  }

  /**
   * Execute a multi-signature token transfer from this wallet using 2 signers: one from msg.sender and the other from ecrecover.
   * 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 see Data Formats
   */
  function sendMultiSigToken(
    address toAddress,
    uint256 value,
    address tokenContractAddress,
    uint256 expireTime,
    uint256 sequenceId,
    bytes calldata signature
  ) external onlySigner {
    // Verify the other signer
    bytes32 operationHash = keccak256(
      abi.encodePacked(
        getTokenNetworkId(),
        toAddress,
        value,
        tokenContractAddress,
        expireTime,
        sequenceId
      )
    );

    verifyMultiSig(toAddress, operationHash, signature, expireTime, sequenceId);

    TransferHelper.safeTransfer(tokenContractAddress, toAddress, value);
  }

  /**
   * 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 payable forwarderAddress,
    address tokenContractAddress
  ) external 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 see Data Formats
   * @param signature see Data Formats
   * @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 that has created the signature
   */
  function verifyMultiSig(
    address toAddress,
    bytes32 operationHash,
    bytes calldata signature,
    uint256 expireTime,
    uint256 sequenceId
  ) private returns (address) {
    address otherSigner = recoverAddressFromSignature(operationHash, signature);

    // Verify if we are in safe mode. In safe mode, the wallet can only send to signers
    require(!safeMode || isSigner(toAddress), 'External transfer in safe mode');

    // Verify that the transaction has not expired
    require(expireTime >= block.timestamp, 'Transaction expired');

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

    require(isSigner(otherSigner), 'Invalid signer');

    require(otherSigner != msg.sender, 'Signers cannot be equal');

    return otherSigner;
  }

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

  /**
   * Gets signer's address using ecrecover
   * @param operationHash see Data Formats
   * @param signature see Data Formats
   * returns address recovered from the signature
   */
  function recoverAddressFromSignature(
    bytes32 operationHash,
    bytes memory signature
  ) private pure returns (address) {
    require(signature.length == 65, 'Invalid signature - wrong length');

    // We need to unpack the signature, which is given as an array of 65 bytes (like eth.sign)
    bytes32 r;
    bytes32 s;
    uint8 v;

    // solhint-disable-next-line
    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
    }

    // protect against signature malleability
    // S value must be in the lower half orader
    // reference: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/051d340171a93a3d401aaaea46b4b62fa81e5d7c/contracts/cryptography/ECDSA.sol#L53
    require(
      uint256(s) <=
        0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0,
      "ECDSA: invalid signature 's' value"
    );

    // note that this returns 0 if the signature is invalid
    // Since 0x0 can never be a signer, when the recovered signer address
    // is checked against our signer list, that 0x0 will cause an invalid signer failure
    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(uint256 sequenceId) private onlySigner {
    // Keep a pointer to the lowest value element in the window
    uint256 lowestValueIndex = 0;
    // fetch recentSequenceIds into memory for function context to avoid unnecessary sloads
    uint256[SEQUENCE_ID_WINDOW_SIZE] memory _recentSequenceIds = recentSequenceIds;
    for (uint256 i = 0; i < SEQUENCE_ID_WINDOW_SIZE; i++) {
      require(_recentSequenceIds[i] != sequenceId, 'Sequence ID already used');

      if (_recentSequenceIds[i] < _recentSequenceIds[lowestValueIndex]) {
        lowestValueIndex = i;
      }
    }

    // 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
    require(
      sequenceId > _recentSequenceIds[lowestValueIndex],
      'Sequence ID below window'
    );

    // Block sequence IDs which are much higher than the lowest value
    // This prevents people blocking the contract by using very large sequence IDs quickly
    require(
      sequenceId <=
        (_recentSequenceIds[lowestValueIndex] + MAX_SEQUENCE_ID_INCREASE),
      'Sequence ID above maximum'
    );

    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() public view returns (uint256) {
    uint256 highestSequenceId = 0;
    for (uint256 i = 0; i < SEQUENCE_ID_WINDOW_SIZE; i++) {
      if (recentSequenceIds[i] > highestSequenceId) {
        highestSequenceId = recentSequenceIds[i];
      }
    }
    return highestSequenceId + 1;
  }
}

File 2 of 4: ERC20Interface.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.7.5;

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

abstract contract ERC20Interface {
  // Send _value amount of tokens to address _to
  function transfer(address _to, uint256 _value)
    public
    virtual
    returns (bool success);

  // Get the account balance of another account with address _owner
  function balanceOf(address _owner)
    public
    virtual
    view
    returns (uint256 balance);
}

File 3 of 4: Forwarder.sol
// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.7.5;
import './TransferHelper.sol';
import './ERC20Interface.sol';

/**
 * Contract that will forward any incoming Ether to the creator of the contract
 *
 */
contract Forwarder {
  // Address to which any funds sent to this contract will be forwarded
  address public parentAddress;
  event ForwarderDeposited(address from, uint256 value, bytes data);

  /**
   * Initialize the contract, and sets the destination address to that of the creator
   */
  function init(address _parentAddress) external onlyUninitialized {
    parentAddress = _parentAddress;
    uint256 value = address(this).balance;

    if (value == 0) {
      return;
    }

    (bool success, ) = parentAddress.call{ value: value }('');
    require(success, 'Flush failed');
    // NOTE: since we are forwarding on initialization,
    // we don't have the context of the original sender.
    // We still emit an event about the forwarding but set
    // the sender to the forwarder itself
    emit ForwarderDeposited(address(this), value, msg.data);
  }

  /**
   * Modifier that will execute internal code block only if the sender is the parent address
   */
  modifier onlyParent {
    require(msg.sender == parentAddress, 'Only Parent');
    _;
  }

  /**
   * Modifier that will execute internal code block only if the contract has not been initialized yet
   */
  modifier onlyUninitialized {
    require(parentAddress == address(0x0), 'Already initialized');
    _;
  }

  /**
   * Default function; Gets called when data is sent but does not match any other function
   */
  fallback() external payable {
    flush();
  }

  /**
   * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
   */
  receive() external payable {
    flush();
  }

  /**
   * Execute a token transfer of the full balance from the forwarder token to the parent address
   * @param tokenContractAddress the address of the erc20 token contract
   */
  function flushTokens(address tokenContractAddress) external onlyParent {
    ERC20Interface instance = ERC20Interface(tokenContractAddress);
    address forwarderAddress = address(this);
    uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
    if (forwarderBalance == 0) {
      return;
    }

    TransferHelper.safeTransfer(
      tokenContractAddress,
      parentAddress,
      forwarderBalance
    );
  }

  /**
   * Flush the entire balance of the contract to the parent address.
   */
  function flush() public {
    uint256 value = address(this).balance;

    if (value == 0) {
      return;
    }

    (bool success, ) = parentAddress.call{ value: value }('');
    require(success, 'Flush failed');
    emit ForwarderDeposited(msg.sender, value, msg.data);
  }
}

File 4 of 4: TransferHelper.sol
// SPDX-License-Identifier: Apache-2.0

pragma solidity >=0.7.5;

// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
    function safeApprove(
        address token,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('approve(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            'TransferHelper::safeApprove: approve failed'
        );
    }

    function safeTransfer(
        address token,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transfer(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            'TransferHelper::safeTransfer: transfer failed'
        );
    }

    function safeTransferFrom(
        address token,
        address from,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            'TransferHelper::transferFrom: transferFrom failed'
        );
    }

    function safeTransferETH(address to, uint256 value) internal {
        (bool success, ) = to.call{value: value}(new bytes(0));
        require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
    }
}

Contract ABI

[{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"msgSender","type":"address"},{"indexed":false,"internalType":"address","name":"otherSigner","type":"address"},{"indexed":false,"internalType":"bytes32","name":"operation","type":"bytes32"}],"name":"BatchTransacted","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"BatchTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"Deposited","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"msgSender","type":"address"}],"name":"SafeModeActivated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"msgSender","type":"address"},{"indexed":false,"internalType":"address","name":"otherSigner","type":"address"},{"indexed":false,"internalType":"bytes32","name":"operation","type":"bytes32"},{"indexed":false,"internalType":"address","name":"toAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"Transacted","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"activateSafeMode","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"forwarderAddress","type":"address"},{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushForwarderTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getNextSequenceId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"allowedSigners","type":"address[]"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"initialized","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"signer","type":"address"}],"name":"isSigner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"safeMode","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"toAddress","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"uint256","name":"expireTime","type":"uint256"},{"internalType":"uint256","name":"sequenceId","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"sendMultiSig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"values","type":"uint256[]"},{"internalType":"uint256","name":"expireTime","type":"uint256"},{"internalType":"uint256","name":"sequenceId","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"sendMultiSigBatch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"toAddress","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"tokenContractAddress","type":"address"},{"internalType":"uint256","name":"expireTime","type":"uint256"},{"internalType":"uint256","name":"sequenceId","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"sendMultiSigToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"signers","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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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Transaction Hash Block Value Eth2 PubKey Valid
View All Deposits
Chain Token Portfolio % Price Amount Value
ETH
Ether (ETH)
43.22%$3,488.817,432.2585$60,817,638.37
ETH23.59%$0.9991333,223,582.9135$33,194,678.4
ETH10.32%$114,517,785.9112$14,517,785.91
ETH6.07%$0.039137218,099,631.0451$8,535,691.11
ETH3.06%$97,78643.9686$4,299,511.92
ETH1.94%$25.66106,503.9136$2,732,890.42
ETH1.07%$0.302764,968,752.8564$1,504,339.61
ETH0.86%$0.9807561,230,998.0192$1,207,308.69
ETH0.76%$0.8669031,229,294.7493$1,065,679.31
ETH0.72%$0.000002414,942,864,465.4925$1,016,368.35
ETH0.61%$375.792,296.6088$863,042.63
ETH0.61%$1.7504,081.5505$856,938.64
ETH0.56%$0.00001941,292,262,712.8003$794,463.13
ETH0.55%$0.00002333,594,197,612.7299$778,041.62
ETH0.48%$1.98339,761.3018$672,727.38
ETH0.43%$14.6241,583.7815$607,954.89
ETH0.29%$0.521739789,943.9194$412,144.23
ETH0.29%$0.01476827,311,674.9757$403,333.9
ETH0.26%$0.603912605,173.399$365,471.48
ETH0.24%$1.38241,545.7874$333,333.19
ETH0.23%$0.2286961,386,070.2579$316,988.72
ETH0.19%$1.04261,588.985$271,126.14
ETH0.19%$0.2264321,157,953.0887$262,197.63
ETH0.17%$37.396,575.9396$245,874.38
ETH0.16%$0.620734360,038.5777$223,488.19
ETH0.14%$7.7825,918.7906$201,648.19
ETH0.14%$1.39143,237.5201$199,780.06
ETH0.14%$0.1657681,151,767.6412$190,926.51
ETH0.13%$23.118,050.9709$186,057.08
ETH0.12%$0.253753675,329.7684$171,366.95
ETH0.12%$2.5167,594.0189$169,618.88
ETH0.11%$1.04152,246.8128$158,336.69
ETH0.11%$1150,110.5399$150,260.65
ETH0.11%$0.416793358,985.9393$149,622.83
ETH0.10%$1.4799,657.1029$146,495.94
ETH0.10%$0.281029505,748.8327$142,130.09
ETH0.10%$0.0521652,691,108.7098$140,381.28
ETH0.09%$0.245423541,039.8169$132,783.61
ETH0.09%$0.277248460,536.2173$127,682.75
ETH0.09%$0.506544242,650.1701$122,912.99
ETH0.09%$0.00143184,299,271.5045$120,628.04
ETH0.08%$0.877237133,407.0238$117,029.58
ETH0.08%$9,302.9611.4689$106,694.7
ETH0.07%$1.0491,177.9208$94,642.68
ETH0.06%$0.00191947,465,876.6163$91,098.41
ETH0.06%$6.8613,253.6934$90,920.34
ETH0.06%$0.574522154,145.141$88,559.77
ETH0.06%$1,646.1848.3902$79,658.95
ETH0.05%$177,222.2787$77,299.5
ETH0.05%$0.094031805,774.0516$75,767.74
ETH0.05%$173,574.72$73,721.87
ETH0.05%$1.6743,386.1$72,454.79
ETH0.05%$0.0198543,447,398.0689$68,446.02
ETH0.05%$1.5842,200.1382$66,676.22
ETH0.04%$0.087732704,777.9512$61,831.58
ETH0.04%$86.86709.4303$61,621.12
ETH0.04%$0.16429362,102.7711$59,489.86
ETH0.04%$0.510795111,664.9717$57,037.91
ETH0.04%$2.2424,588.5193$55,078.28
ETH0.04%$0.539124101,762.4432$54,862.58
ETH0.04%$0.00418711,946,767$50,021.71
ETH0.03%$0.325146145,552.6273$47,325.85
ETH0.03%$0.00018233,989,390.65$42,052.57
ETH0.03%$2.8413,684.5557$38,864.14
ETH0.03%$1.5525,041.1098$38,813.72
ETH0.02%$1.2527,579.484$34,474.35
ETH0.02%$0.207048164,222.1456$34,001.87
ETH0.02%$0.0247691,334,123.8898$33,044.33
ETH0.02%$1.322,517.3159$29,294.62
ETH0.01%$4.863,977.1236$19,336
ETH0.01%$0.50321536,775.2651$18,505.87
ETH0.01%$0.0083762,166,232.4749$18,143.56
ETH<0.01%$0.21970238,117.1676$8,374.42
ETH<0.01%$0.37041519,822.2007$7,342.44
ETH<0.01%$14,311.2976$4,315.61
ETH<0.01%$0.2168918,641.1767$4,043.08
ETH<0.01%$0.0344399,796.9$3,436
ETH<0.01%<$0.00000137,178,306,667.6063$2,845.52
ETH<0.01%$3.31668.4057$2,212.42
ETH<0.01%$0.1983019,121.2072$1,808.74
ETH<0.01%$0.1960838,528.8434$1,672.36
ETH<0.01%$17.978.8129$1,410.75
ETH<0.01%$1.041,147.8955$1,190.37
ETH<0.01%$1.0825.6699$27.65
ETH<0.01%$0.92642722.3365$20.69
ETH<0.01%$0.000031377,399.8429$11.87
ETH<0.01%$0.15581638.3591$5.98
ETH<0.01%$0.000008333,333$2.8
ETH<0.01%$0.0008171,000$0.8174
ETH<0.01%$0.001009568.5245$0.5734
ETH<0.01%<$0.000001139,318,908.0351$0.5515
AVAX<0.01%$41.271.4136$58.33
BASE<0.01%$0.027936810$22.63
BASE<0.01%$0.1426911$0.1426
BSC<0.01%$0.000016804,828$12.6
POL<0.01%$0.000273500$0.1366
POL<0.01%$0.5250360.0014$0.000735
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