Poe On Base

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract PoeOnBase {
    string public constant name = "Poe On Base";
    string public constant symbol = "POE";
    uint8 public constant decimals = 18;
    uint256 public totalSupply;

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

    address public owner;
    bool public ownershipRenounced;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    modifier onlyOwner() {
        require(msg.sender == owner, "Only the owner can call this function");
        _;
    }

    constructor() {
        totalSupply = 1000000000 * 10**decimals;
        balanceOf[msg.sender] = totalSupply;
        owner = msg.sender;
        emit Transfer(address(0), msg.sender, totalSupply);
    }

    function transfer(address recipient, uint256 amount) external returns (bool) {
        require(balanceOf[msg.sender] >= amount, "Insufficient balance");
        balanceOf[msg.sender] -= amount;
        balanceOf[recipient] += amount;
        emit Transfer(msg.sender, recipient, amount);
        return true;
    }

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

    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) {
        require(balanceOf[sender] >= amount, "Insufficient balance");
        require(allowance[sender][msg.sender] >= amount, "Insufficient allowance");
        balanceOf[sender] -= amount;
        allowance[sender][msg.sender] -= amount;
        balanceOf[recipient] += amount;
        emit Transfer(sender, recipient, amount);
        return true;
    }

    function renounceOwnership() external onlyOwner {
        require(!ownershipRenounced, "Ownership has already been renounced");
        ownershipRenounced = true;
        emit OwnershipTransferred(owner, address(0));
        owner = address(0);
    }
}

{
  "compilationTarget": {
    "PoeOnBase.sol": "PoeOnBase"
  },
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}