true
false
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Contract Address Details

0x4e9f20ed63fa2421fD18857A0c3a41aD138CD593

Contract Name
WETH9
Creator
0xdc9111–164e1c at 0x60550d–49c0e7
Balance
0 ECS
Tokens
Fetching tokens...
Transactions
0 Transactions
Transfers
0 Transfers
Gas Used
Fetching gas used...
Last Balance Update
28081983
Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
Contract name:
WETH9




Optimization enabled
false
Compiler version
v0.4.18+commit.9cf6e910




EVM Version
default




Verified at
2023-12-06T20:09:48.522029Z

Contract source code

/**
 *Submitted for verification at Etherscan.io on 2017-12-12
*/

// Copyright (C) 2015, 2016, 2017 Dapphub

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

pragma solidity ^0.4.18;

contract WETH9 {
    string public name     = "Wrapped Ecredits";
    string public symbol   = "WECS";
    uint8  public decimals = 18;

    event  Approval(address indexed src, address indexed guy, uint wad);
    event  Transfer(address indexed src, address indexed dst, uint wad);
    event  Deposit(address indexed dst, uint wad);
    event  Withdrawal(address indexed src, uint wad);

    mapping (address => uint)                       public  balanceOf;
    mapping (address => mapping (address => uint))  public  allowance;

    function() public payable {
        deposit();
    }
    function deposit() public payable {
        balanceOf[msg.sender] += msg.value;
        Deposit(msg.sender, msg.value);
    }
    function withdraw(uint wad) public {
        require(balanceOf[msg.sender] >= wad);
        balanceOf[msg.sender] -= wad;
        msg.sender.transfer(wad);
        Withdrawal(msg.sender, wad);
    }

    function totalSupply() public view returns (uint) {
        return this.balance;
    }

    function approve(address guy, uint wad) public returns (bool) {
        allowance[msg.sender][guy] = wad;
        Approval(msg.sender, guy, wad);
        return true;
    }

    function transfer(address dst, uint wad) public returns (bool) {
        return transferFrom(msg.sender, dst, wad);
    }

    function transferFrom(address src, address dst, uint wad)
        public
        returns (bool)
    {
        require(balanceOf[src] >= wad);

        if (src != msg.sender && allowance[src][msg.sender] != uint(-1)) {
            require(allowance[src][msg.sender] >= wad);
            allowance[src][msg.sender] -= wad;
        }

        balanceOf[src] -= wad;
        balanceOf[dst] += wad;

        Transfer(src, dst, wad);

        return true;
    }
}

Contract ABI

[{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"string","name":""}],"name":"name","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":""}],"name":"approve","inputs":[{"type":"address","name":"guy"},{"type":"uint256","name":"wad"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":""}],"name":"totalSupply","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":""}],"name":"transferFrom","inputs":[{"type":"address","name":"src"},{"type":"address","name":"dst"},{"type":"uint256","name":"wad"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"withdraw","inputs":[{"type":"uint256","name":"wad"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint8","name":""}],"name":"decimals","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":""}],"name":"balanceOf","inputs":[{"type":"address","name":""}],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"string","name":""}],"name":"symbol","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":""}],"name":"transfer","inputs":[{"type":"address","name":"dst"},{"type":"uint256","name":"wad"}],"constant":false},{"type":"function","stateMutability":"payable","payable":true,"outputs":[],"name":"deposit","inputs":[],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":""}],"name":"allowance","inputs":[{"type":"address","name":""},{"type":"address","name":""}],"constant":true},{"type":"fallback","stateMutability":"payable","payable":true},{"type":"event","name":"Approval","inputs":[{"type":"address","name":"src","indexed":true},{"type":"address","name":"guy","indexed":true},{"type":"uint256","name":"wad","indexed":false}],"anonymous":false},{"type":"event","name":"Transfer","inputs":[{"type":"address","name":"src","indexed":true},{"type":"address","name":"dst","indexed":true},{"type":"uint256","name":"wad","indexed":false}],"anonymous":false},{"type":"event","name":"Deposit","inputs":[{"type":"address","name":"dst","indexed":true},{"type":"uint256","name":"wad","indexed":false}],"anonymous":false},{"type":"event","name":"Withdrawal","inputs":[{"type":"address","name":"src","indexed":true},{"type":"uint256","name":"wad","indexed":false}],"anonymous":false}]

Contract Creation Code

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Deployed ByteCode

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