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Gas: 4 Gwei

Contract

0xB059cE84105E55652a399f1b0E8337D3d82d4786
 

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Latest 7 internal transactions

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Parent Transaction Hash Block From To Value
166161642023-02-13 0:09:47489 days ago1676246987
0xB059cE84...3d82d4786
0.475 ETH
166161642023-02-13 0:09:47489 days ago1676246987
0xB059cE84...3d82d4786
0.475 ETH
165904862023-02-09 10:04:59493 days ago1675937099
0xB059cE84...3d82d4786
0.285 ETH
165904862023-02-09 10:04:59493 days ago1675937099
0xB059cE84...3d82d4786
0.285 ETH
165804972023-02-08 0:32:11494 days ago1675816331
0xB059cE84...3d82d4786
3.838 ETH
165804972023-02-08 0:32:11494 days ago1675816331
0xB059cE84...3d82d4786
3.838 ETH
165360712023-02-01 19:31:35500 days ago1675279895  Contract Creation0 ETH
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Minimal Proxy Contract for 0xd94c0ce4f8eefa4ebf44bf6665688edeef213b33

Contract Name:
SplitWallet

Compiler Version
v0.8.4+commit.c7e474f2

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 4 : SplitWallet.sol
// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.4;

import {ISplitMain} from './interfaces/ISplitMain.sol';
import {ERC20} from '@rari-capital/solmate/src/tokens/ERC20.sol';
import {SafeTransferLib} from '@rari-capital/solmate/src/utils/SafeTransferLib.sol';

/**
 * ERRORS
 */

/// @notice Unauthorized sender
error Unauthorized();

/**
 * @title SplitWallet
 * @author 0xSplits <[email protected]>
 * @notice The implementation logic for `SplitProxy`.
 * @dev `SplitProxy` handles `receive()` itself to avoid the gas cost with `DELEGATECALL`.
 */
contract SplitWallet {
  using SafeTransferLib for address;
  using SafeTransferLib for ERC20;

  /**
   * EVENTS
   */

  /** @notice emitted after each successful ETH transfer to proxy
   *  @param split Address of the split that received ETH
   *  @param amount Amount of ETH received
   */
  event ReceiveETH(address indexed split, uint256 amount);

  /**
   * STORAGE
   */

  /**
   * STORAGE - CONSTANTS & IMMUTABLES
   */

  /// @notice address of SplitMain for split distributions & EOA/SC withdrawals
  ISplitMain public immutable splitMain;

  /**
   * MODIFIERS
   */

  /// @notice Reverts if the sender isn't SplitMain
  modifier onlySplitMain() {
    if (msg.sender != address(splitMain)) revert Unauthorized();
    _;
  }

  /**
   * CONSTRUCTOR
   */

  constructor() {
    splitMain = ISplitMain(msg.sender);
  }

  /**
   * FUNCTIONS - PUBLIC & EXTERNAL
   */

  /** @notice Sends amount `amount` of ETH in proxy to SplitMain
   *  @dev payable reduces gas cost; no vulnerability to accidentally lock
   *  ETH introduced since fn call is restricted to SplitMain
   *  @param amount Amount to send
   */
  function sendETHToMain(uint256 amount) external payable onlySplitMain() {
    address(splitMain).safeTransferETH(amount);
  }

  /** @notice Sends amount `amount` of ERC20 `token` in proxy to SplitMain
   *  @dev payable reduces gas cost; no vulnerability to accidentally lock
   *  ETH introduced since fn call is restricted to SplitMain
   *  @param token Token to send
   *  @param amount Amount to send
   */
  function sendERC20ToMain(ERC20 token, uint256 amount)
    external
    payable
    onlySplitMain()
  {
    token.safeTransfer(address(splitMain), amount);
  }
}

File 2 of 4 : ISplitMain.sol
// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.4;

import {ERC20} from '@rari-capital/solmate/src/tokens/ERC20.sol';

/**
 * @title ISplitMain
 * @author 0xSplits <[email protected]>
 */
interface ISplitMain {
  /**
   * FUNCTIONS
   */

  function walletImplementation() external returns (address);

  function createSplit(
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address controller
  ) external returns (address);

  function predictImmutableSplitAddress(
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee
  ) external view returns (address);

  function updateSplit(
    address split,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee
  ) external;

  function transferControl(address split, address newController) external;

  function cancelControlTransfer(address split) external;

  function acceptControl(address split) external;

  function makeSplitImmutable(address split) external;

  function distributeETH(
    address split,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address distributorAddress
  ) external;

  function updateAndDistributeETH(
    address split,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address distributorAddress
  ) external;

  function distributeERC20(
    address split,
    ERC20 token,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address distributorAddress
  ) external;

  function updateAndDistributeERC20(
    address split,
    ERC20 token,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address distributorAddress
  ) external;

  function withdraw(
    address account,
    uint256 withdrawETH,
    ERC20[] calldata tokens
  ) external;

  /**
   * EVENTS
   */

  /** @notice emitted after each successful split creation
   *  @param split Address of the created split
   */
  event CreateSplit(address indexed split);

  /** @notice emitted after each successful split update
   *  @param split Address of the updated split
   */
  event UpdateSplit(address indexed split);

  /** @notice emitted after each initiated split control transfer
   *  @param split Address of the split control transfer was initiated for
   *  @param newPotentialController Address of the split's new potential controller
   */
  event InitiateControlTransfer(
    address indexed split,
    address indexed newPotentialController
  );

  /** @notice emitted after each canceled split control transfer
   *  @param split Address of the split control transfer was canceled for
   */
  event CancelControlTransfer(address indexed split);

  /** @notice emitted after each successful split control transfer
   *  @param split Address of the split control was transferred for
   *  @param previousController Address of the split's previous controller
   *  @param newController Address of the split's new controller
   */
  event ControlTransfer(
    address indexed split,
    address indexed previousController,
    address indexed newController
  );

  /** @notice emitted after each successful ETH balance split
   *  @param split Address of the split that distributed its balance
   *  @param amount Amount of ETH distributed
   *  @param distributorAddress Address to credit distributor fee to
   */
  event DistributeETH(
    address indexed split,
    uint256 amount,
    address indexed distributorAddress
  );

  /** @notice emitted after each successful ERC20 balance split
   *  @param split Address of the split that distributed its balance
   *  @param token Address of ERC20 distributed
   *  @param amount Amount of ERC20 distributed
   *  @param distributorAddress Address to credit distributor fee to
   */
  event DistributeERC20(
    address indexed split,
    ERC20 indexed token,
    uint256 amount,
    address indexed distributorAddress
  );

  /** @notice emitted after each successful withdrawal
   *  @param account Address that funds were withdrawn to
   *  @param ethAmount Amount of ETH withdrawn
   *  @param tokens Addresses of ERC20s withdrawn
   *  @param tokenAmounts Amounts of corresponding ERC20s withdrawn
   */
  event Withdrawal(
    address indexed account,
    uint256 ethAmount,
    ERC20[] tokens,
    uint256[] tokenAmounts
  );
}

File 3 of 4 : ERC20.sol
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
    /*///////////////////////////////////////////////////////////////
                                  EVENTS
    //////////////////////////////////////////////////////////////*/

    event Transfer(address indexed from, address indexed to, uint256 amount);

    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /*///////////////////////////////////////////////////////////////
                             METADATA STORAGE
    //////////////////////////////////////////////////////////////*/

    string public name;

    string public symbol;

    uint8 public immutable decimals;

    /*///////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) public allowance;

    /*///////////////////////////////////////////////////////////////
                             EIP-2612 STORAGE
    //////////////////////////////////////////////////////////////*/

    bytes32 public constant PERMIT_TYPEHASH =
        keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");

    uint256 internal immutable INITIAL_CHAIN_ID;

    bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;

    mapping(address => uint256) public nonces;

    /*///////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;

        INITIAL_CHAIN_ID = block.chainid;
        INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
    }

    /*///////////////////////////////////////////////////////////////
                              ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);

        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(msg.sender, to, amount);

        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.

        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;

        balanceOf[from] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(from, to, amount);

        return true;
    }

    /*///////////////////////////////////////////////////////////////
                              EIP-2612 LOGIC
    //////////////////////////////////////////////////////////////*/

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");

        // Unchecked because the only math done is incrementing
        // the owner's nonce which cannot realistically overflow.
        unchecked {
            bytes32 digest = keccak256(
                abi.encodePacked(
                    "\x19\x01",
                    DOMAIN_SEPARATOR(),
                    keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
                )
            );

            address recoveredAddress = ecrecover(digest, v, r, s);

            require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER");

            allowance[recoveredAddress][spender] = value;
        }

        emit Approval(owner, spender, value);
    }

    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
    }

    function computeDomainSeparator() internal view virtual returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                    keccak256(bytes(name)),
                    keccak256("1"),
                    block.chainid,
                    address(this)
                )
            );
    }

    /*///////////////////////////////////////////////////////////////
                       INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;

        // Cannot underflow because a user's balance
        // will never be larger than the total supply.
        unchecked {
            totalSupply -= amount;
        }

        emit Transfer(from, address(0), amount);
    }
}

File 4 of 4 : SafeTransferLib.sol
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

import {ERC20} from "../tokens/ERC20.sol";

/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.
/// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/utils/SafeTransferLib.sol)
/// @author Modified from Gnosis (https://github.com/gnosis/gp-v2-contracts/blob/main/src/contracts/libraries/GPv2SafeERC20.sol)
/// @dev Use with caution! Some functions in this library knowingly create dirty bits at the destination of the free memory pointer.
library SafeTransferLib {
    /*///////////////////////////////////////////////////////////////
                            ETH OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferETH(address to, uint256 amount) internal {
        bool callStatus;

        assembly {
            // Transfer the ETH and store if it succeeded or not.
            callStatus := call(gas(), to, amount, 0, 0, 0, 0)
        }

        require(callStatus, "ETH_TRANSFER_FAILED");
    }

    /*///////////////////////////////////////////////////////////////
                           ERC20 OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferFrom(
        ERC20 token,
        address from,
        address to,
        uint256 amount
    ) internal {
        bool callStatus;

        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata to memory piece by piece:
            mstore(freeMemoryPointer, 0x23b872dd00000000000000000000000000000000000000000000000000000000) // Begin with the function selector.
            mstore(add(freeMemoryPointer, 4), and(from, 0xffffffffffffffffffffffffffffffffffffffff)) // Mask and append the "from" argument.
            mstore(add(freeMemoryPointer, 36), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Mask and append the "to" argument.
            mstore(add(freeMemoryPointer, 68), amount) // Finally append the "amount" argument. No mask as it's a full 32 byte value.

            // Call the token and store if it succeeded or not.
            // We use 100 because the calldata length is 4 + 32 * 3.
            callStatus := call(gas(), token, 0, freeMemoryPointer, 100, 0, 0)
        }

        require(didLastOptionalReturnCallSucceed(callStatus), "TRANSFER_FROM_FAILED");
    }

    function safeTransfer(
        ERC20 token,
        address to,
        uint256 amount
    ) internal {
        bool callStatus;

        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata to memory piece by piece:
            mstore(freeMemoryPointer, 0xa9059cbb00000000000000000000000000000000000000000000000000000000) // Begin with the function selector.
            mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Mask and append the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Finally append the "amount" argument. No mask as it's a full 32 byte value.

            // Call the token and store if it succeeded or not.
            // We use 68 because the calldata length is 4 + 32 * 2.
            callStatus := call(gas(), token, 0, freeMemoryPointer, 68, 0, 0)
        }

        require(didLastOptionalReturnCallSucceed(callStatus), "TRANSFER_FAILED");
    }

    function safeApprove(
        ERC20 token,
        address to,
        uint256 amount
    ) internal {
        bool callStatus;

        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata to memory piece by piece:
            mstore(freeMemoryPointer, 0x095ea7b300000000000000000000000000000000000000000000000000000000) // Begin with the function selector.
            mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Mask and append the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Finally append the "amount" argument. No mask as it's a full 32 byte value.

            // Call the token and store if it succeeded or not.
            // We use 68 because the calldata length is 4 + 32 * 2.
            callStatus := call(gas(), token, 0, freeMemoryPointer, 68, 0, 0)
        }

        require(didLastOptionalReturnCallSucceed(callStatus), "APPROVE_FAILED");
    }

    /*///////////////////////////////////////////////////////////////
                         INTERNAL HELPER LOGIC
    //////////////////////////////////////////////////////////////*/

    function didLastOptionalReturnCallSucceed(bool callStatus) private pure returns (bool success) {
        assembly {
            // Get how many bytes the call returned.
            let returnDataSize := returndatasize()

            // If the call reverted:
            if iszero(callStatus) {
                // Copy the revert message into memory.
                returndatacopy(0, 0, returnDataSize)

                // Revert with the same message.
                revert(0, returnDataSize)
            }

            switch returnDataSize
            case 32 {
                // Copy the return data into memory.
                returndatacopy(0, 0, returnDataSize)

                // Set success to whether it returned true.
                success := iszero(iszero(mload(0)))
            }
            case 0 {
                // There was no return data.
                success := 1
            }
            default {
                // It returned some malformed input.
                success := 0
            }
        }
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"Unauthorized","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"split","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ReceiveETH","type":"event"},{"inputs":[{"internalType":"contract ERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"sendERC20ToMain","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"sendETHToMain","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"splitMain","outputs":[{"internalType":"contract ISplitMain","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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