ETH Price: $2,904.49 (-1.14%)

Contract

0x97eCAD323F63060DF37FF0Cf05350803dB4D17Bd
 

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Private Name Tags

TokenTracker

Multichain Info

No addresses found
Transaction Hash
Block
From
To
Unwrap227507142025-08-04 12:40:43175 days ago1754311243IN
0x97eCAD32...3dB4D17Bd
0 ETH00.00000493
Approve191453982025-05-13 1:43:31258 days ago1747100611IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000000070.00147326
Wrap183371002025-04-24 8:40:15277 days ago1745484015IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000001710.00031832
Wrap148751312025-02-03 5:21:17357 days ago1738560077IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000000320.0047278
Wrap146926682025-01-29 23:59:11361 days ago1738195151IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000000020.00016905
Wrap144229952025-01-23 18:10:05367 days ago1737655805IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000001860.00000259
Transfer121103882024-12-01 5:23:11421 days ago1733030591IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000001680.00151237
Wrap73839802024-08-13 19:36:15530 days ago1723577775IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000000160.00240412
Unwrap72800742024-08-11 9:52:43533 days ago1723369963IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000000120.00189449
Wrap72777012024-08-11 8:33:37533 days ago1723365217IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000000050.00110303
Wrap72707322024-08-11 4:41:19533 days ago1723351279IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000000070.00104047
Wrap71858062024-08-09 5:30:27535 days ago1723181427IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000000040.00052162
Unwrap45081012024-06-08 5:53:37597 days ago1717826017IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000000350.00516984
Unwrap38809772024-05-24 17:29:29611 days ago1716571769IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000014170.01015722
Unwrap20729212024-04-12 21:00:57653 days ago1712955657IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000046570.0011
Approve20729072024-04-12 21:00:29653 days ago1712955629IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000067680.0011
Wrap20728722024-04-12 20:59:19653 days ago1712955559IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000051830.0011
Wrap20726932024-04-12 20:53:21653 days ago1712955201IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000052320.0011
Unwrap14347072024-03-29 2:27:09668 days ago1711679229IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000033350.00125
Wrap14342822024-03-29 2:12:59668 days ago1711678379IN
0x97eCAD32...3dB4D17Bd
0 ETH0.000038550.00125

Latest 1 internal transaction

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Parent Transaction Hash Block From To
14189292024-03-28 17:41:13668 days ago1711647673  Contract Creation0 ETH

Cross-Chain Transactions
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x66714DB8...3C0FE7dd1
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
FewWrappedToken

Compiler Version
v0.6.6+commit.6c089d02

Optimization Enabled:
Yes with 999999 runs

Other Settings:
istanbul EvmVersion

Contract Source Code (Solidity Standard Json-Input format)

// SPDX-License-Identifier: BUSL-1.1
pragma solidity =0.6.6;

import '@uniswap/lib/contracts/libraries/TransferHelper.sol';

import './interfaces/IFewWrappedToken.sol';
import './libraries/SafeMath.sol';
import './refs/ICoreRef.sol';
import './interfaces/IFewFactory.sol';
import './BlastManagerFromFactory.sol';

/// @title Few Wrapped Token
contract FewWrappedToken is IFewWrappedToken, BlastManagerFromFactory {
    using SafeMath for uint;

    string public override name;
    string public override symbol;
    uint8 public override constant decimals = 18;
    uint  public override totalSupply;
    mapping(address => uint) public override balanceOf;
    mapping(address => mapping(address => uint)) public override allowance;

    bytes32 public override DOMAIN_SEPARATOR;
    // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    bytes32 public override constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
    mapping(address => uint) public override nonces;

    address public override factory;
    address public override token;

    modifier onlyMinter() {
        require(ICoreRef(factory).core().isMinter(msg.sender), "CoreRef: Caller is not a minter");
        _;
    }

    modifier onlyBurner() {
        require(ICoreRef(factory).core().isBurner(msg.sender), "CoreRef: Caller is not a burner");
        _;
    }

    modifier whenNotPaused() {
        require(!IFewFactory(factory).paused(), "CoreRef: Caller is paused");
        _;
    }

    event Mint(address indexed minter, uint256 amount, address indexed to);
    event Burn(address indexed burner, uint256 amount, address indexed to);
    event Wrap(address indexed sender, uint256 amount, address indexed to);
    event Unwrap(address indexed sender, uint256 amount, address indexed to);

    /// @notice Few wrapped token constructor
    constructor() public {
        uint chainId;
        assembly {
            chainId := chainid()
        }

        factory = msg.sender;
        token = IFewFactory(msg.sender).parameter();
        name = string(abi.encodePacked("Few Wrapped ", IERC20(token).name()));
        symbol = string(abi.encodePacked("fw", IERC20(token).symbol()));

        DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
                keccak256(bytes(name)),
                keccak256(bytes('1')),
                chainId,
                address(this)
            )
        );
    }

    function _mint(address to, uint value) internal {
        totalSupply = totalSupply.add(value);
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(address(0), to, value);
    }

    function _burn(address from, uint value) internal {
        balanceOf[from] = balanceOf[from].sub(value);
        totalSupply = totalSupply.sub(value);
        emit Transfer(from, address(0), value);
    }

    function _approve(address owner, address spender, uint value) internal {
        allowance[owner][spender] = value;
        emit Approval(owner, spender, value);
    }

    function _transfer(address from, address to, uint value) private {
        balanceOf[from] = balanceOf[from].sub(value);
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(from, to, value);
    }

    function approve(address spender, uint value) external override returns (bool) {
        _approve(msg.sender, spender, value);
        return true;
    }

    function transfer(address to, uint value) external override returns (bool) {
        _transfer(msg.sender, to, value);
        return true;
    }

    function transferFrom(address from, address to, uint value) external override returns (bool) {
        if (allowance[from][msg.sender] != uint(-1)) {
            allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
        }
        _transfer(from, to, value);
        return true;
    }

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external override {
        require(deadline >= block.timestamp, 'Few: EXPIRED');
        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, 'Few: INVALID_SIGNATURE');
        _approve(owner, spender, value);
    }

    /// @notice mint Few wrapped tokens
    /// @param account the account to mint to
    /// @param amount the amount to mint
    function mint(address account, uint256 amount)
        external
        override
        onlyMinter
        whenNotPaused
    {
        _mint(account, amount);
        emit Mint(msg.sender, amount, account);
    }

    /// @notice burn Few wrapped tokens from caller
    /// @param amount the amount to burn
    function burn(uint256 amount) public override {
        _burn(msg.sender, amount);
        emit Burn(msg.sender, amount, msg.sender);
    }

    /// @notice burn Few wrapped tokens from specified account
    /// @param account the account to burn from
    /// @param amount the amount to burn
    function burnFrom(address account, uint256 amount)
        public
        override
        onlyBurner
        whenNotPaused
    {
        _burn(account, amount);
        emit Burn(msg.sender, amount, account);
    }

    /// @notice exchanges token to Few wrapped token
    /// @param amount the amount to wrap
    /// @param to wrapped token reciver address
    function wrapTo(uint256 amount, address to) public override returns (uint256) {
        require(amount > 0, "Few: can't wrap zero token");
        TransferHelper.safeTransferFrom(token, msg.sender, address(this), amount);
        _mint(to, amount);
        emit Wrap(msg.sender, amount, to);
        return amount;
    }

    function wrap(uint256 amount) external override returns (uint256) {
        return wrapTo(amount, msg.sender);
    }

    /// @notice exchange Few wrapped token to token
    /// @param amount the amount to unwrap
    /// @param to token receiver address
    function unwrapTo(uint256 amount, address to) public override returns (uint256) {
        require(amount > 0, "Few: zero amount unwrap not allowed");
        _burn(msg.sender, amount);
        TransferHelper.safeTransfer(address(token), to, amount);
        emit Unwrap(msg.sender, amount, to);
        return amount;
    }

    function unwrap(uint256 amount) external override returns (uint256) {
        return unwrapTo(amount, msg.sender);
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity >=0.6.0;

// 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');
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity =0.6.6;

import './interfaces/IBlast.sol';
import './interfaces/IBlastPoints.sol';
import './interfaces/IBlastManager.sol';
import './refs/ICoreRef.sol';

contract BlastManagerFromFactory is IBlastManager {
    IBlast public constant BLAST = IBlast(0x4300000000000000000000000000000000000002);
    address public override manager;

    modifier onlyManager() {
        require(ICoreRef(manager).core().isGovernor(msg.sender), "FORBIDDEN");
        _;
    }

    constructor() public {
        manager = msg.sender;
        BLAST.configureAutomaticYield();
        BLAST.configureClaimableGas();
    }

    function claimGas(address recipient, bool isMax) external override onlyManager returns (uint256) {
        if (isMax) {
            return BLAST.claimMaxGas(address(this), recipient);
        } else {
            return BLAST.claimAllGas(address(this), recipient);
        }
    }

    function setManager(address _manager) external override onlyManager {
        manager = _manager;
    }

    function setGasMode(address blastGas) external override onlyManager {
        IBlast(blastGas).configureClaimableGas();
    }

    function setPointsOperator(address blastPoints, address operator) external override onlyManager {
        // This method can be called only once, and operator must be an EOA.
        IBlastPoints(blastPoints).configurePointsOperator(operator);
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

interface ICore {
    // ----------- Getters -----------

    function isBurner(address _address) external view returns (bool);

    function isMinter(address _address) external view returns (bool);

    function isGovernor(address _address) external view returns (bool);

    function isGuardian(address _address) external view returns (bool);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

interface IBlast{
    function configureAutomaticYield() external;
    function configureClaimableGas() external;
    function claimAllGas(address contractAddress, address recipient) external returns (uint256);
    function claimMaxGas(address contractAddress, address recipientOfGas) external returns (uint256);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

interface IBlastManager {
    function manager() external view returns (address);
    function claimGas(address recipient, bool isMax) external returns (uint256);
    function setManager(address _manager) external;
    function setGasMode(address blastGas) external;
    function setPointsOperator(address blastPoints, address operator) external;
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

interface IBlastPoints {
	function configurePointsOperator(address operator) external;
}

pragma solidity >=0.5.0;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

import './IERC20.sol';

interface IFewERC20 is IERC20 {
    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

interface IFewFactory {
    event WrappedTokenCreated(address indexed originalToken, address wrappedToken, uint);

    function getWrappedToken(address originalToken) external view returns (address wrappedToken);
    function allWrappedTokens(uint) external view returns (address wrappedToken);
    function parameter() external view returns (address);
    function allWrappedTokensLength() external view returns (uint);
    function paused() external view returns (bool);
    function createToken(address originalToken) external returns (address wrappedToken);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

import '../interfaces/IFewERC20.sol';

interface IFewWrappedToken is IFewERC20 {
    event Mint(address indexed minter, uint256 amount, address indexed to);
    event Burn(address indexed burner, uint256 amount, address indexed to);
    event Wrap(address indexed sender, uint256 amount, address indexed to);
    event Unwrap(address indexed sender, uint256 amount, address indexed to);

    function factory() external view returns (address);
    function token() external view returns (address);

    function mint(address account, uint256 amount) external;
    function burn(uint256 amount) external;
    function burnFrom(address account, uint256 amount) external;
    function wrapTo(uint256 amount, address to) external returns (uint256);
    function wrap(uint256 amount) external returns (uint256);
    function unwrapTo(uint256 amount, address to) external returns (uint256);
    function unwrap(uint256 amount) external returns (uint256);
}

pragma solidity =0.6.6;

// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)

library SafeMath {
    function add(uint x, uint y) internal pure returns (uint z) {
        require((z = x + y) >= x, 'ds-math-add-overflow');
    }

    function sub(uint x, uint y) internal pure returns (uint z) {
        require((z = x - y) <= x, 'ds-math-sub-underflow');
    }

    function mul(uint x, uint y) internal pure returns (uint z) {
        require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

import '../core/ICore.sol';

/// @title CoreRef interface
interface ICoreRef {
    event CoreUpdate(address indexed _core);

    function setCore(address coreAddress) external;
    function pause() external;
    function unpause() external;
    function core() external view returns (ICore);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 999999
  },
  "evmVersion": "istanbul",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

API
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"burner","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"minter","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Unwrap","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Wrap","type":"event"},{"inputs":[],"name":"BLAST","outputs":[{"internalType":"contract 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Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.