MemeToken

[
  {
    "inputs": [
      {
        "internalType": "string",
        "name": "_name",
        "type": "string"
      },
      {
        "internalType": "string",
        "name": "_symbol",
        "type": "string"
      },
      {
        "internalType": "uint256",
        "name": "_supply",
        "type": "uint256"
      },
      {
        "internalType": "address",
        "name": "_owner",
        "type": "address"
      },
      {
        "internalType": "string",
        "name": "_uri",
        "type": "string"
      }
    ],
    "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": "previousOwner",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "newOwner",
        "type": "address"
      }
    ],
    "name": "OwnershipTransferred",
    "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"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "name": "allowance",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "spender",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "approve",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "name": "balanceOf",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "contractURI",
    "outputs": [
      {
        "internalType": "string",
        "name": "",
        "type": "string"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "decimals",
    "outputs": [
      {
        "internalType": "uint8",
        "name": "",
        "type": "uint8"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "name",
    "outputs": [
      {
        "internalType": "string",
        "name": "",
        "type": "string"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "owner",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "pure",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "symbol",
    "outputs": [
      {
        "internalType": "string",
        "name": "",
        "type": "string"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "tokenURI",
    "outputs": [
      {
        "internalType": "string",
        "name": "",
        "type": "string"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "totalSupply",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "to",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "transfer",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "from",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "to",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "transferFrom",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  }
]

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

/// @title MemeToken — minimal fixed-supply ERC-20 used by robinhood.meme
/// @notice Mints the entire supply to `_owner` on deploy. No mint/burn afterwards.
///         Ownership is renounced by construction: `owner()` always returns the
///         zero address and the constructor emits Ownable's
///         OwnershipTransferred(previousOwner, address(0)) event so scanners
///         that key off the event (GMGN etc.) flag the token as "renounced".
contract MemeToken {
    string public name;
    string public symbol;
    uint8 public constant decimals = 18;
    uint256 public totalSupply;

    /// Per-token metadata URI (ipfs://... or https://...). Some explorers /
    /// scanners read this to display the token logo and description.
    string public tokenURI;
    /// Alias used by ERC-7572 (contract-level metadata).
    string public contractURI;

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

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    /// Standard Ownable event — emitted twice in the constructor to signal
    /// that ownership was granted to the deployer and immediately renounced.
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor(
        string memory _name,
        string memory _symbol,
        uint256 _supply,
        address _owner,
        string memory _uri
    ) {
        name = _name;
        symbol = _symbol;
        totalSupply = _supply;
        tokenURI = _uri;
        contractURI = _uri;
        balanceOf[_owner] = _supply;
        emit Transfer(address(0), _owner, _supply);
        // Ownable renounce trace: zero -> deployer -> zero.
        emit OwnershipTransferred(address(0), _owner);
        emit OwnershipTransferred(_owner, address(0));
    }

    /// @notice Ownable-compatible view. Always returns the zero address so
    ///         chain security scanners (GMGN, DexScreener, Honeypot.is, etc.)
    ///         detect the token as having renounced ownership. There is no
    ///         setter — the token has no admin, no mint, no burn, no pause.
    function owner() external pure returns (address) {
        return address(0);
    }

    function approve(address spender, uint256 value) external returns (bool) {
        allowance[msg.sender][spender] = value;
        emit Approval(msg.sender, spender, value);
        return true;
    }

    function transfer(address to, uint256 value) external returns (bool) {
        _transfer(msg.sender, to, value);
        return true;
    }

    function transferFrom(address from, address to, uint256 value) external returns (bool) {
        uint256 a = allowance[from][msg.sender];
        if (a != type(uint256).max) {
            require(a >= value, "allowance");
            allowance[from][msg.sender] = a - value;
        }
        _transfer(from, to, value);
        return true;
    }

    function _transfer(address from, address to, uint256 value) internal {
        require(to != address(0), "to=0");
        uint256 b = balanceOf[from];
        require(b >= value, "balance");
        unchecked { balanceOf[from] = b - value; }
        balanceOf[to] += value;
        emit Transfer(from, to, value);
    }
}