USDT

{{
  "language": "Solidity",
  "sources": {
    "USDT.sol": {
      "content": "// SPDX-License-Identifier: MIT\r
pragma solidity ^0.8.30;\r
\r
contract USDT {\r
    string public name = "Tether USD";\r
    string public symbol = "USDT";\r
    uint8 public constant decimals = 6;\r
\r
    uint256 private _totalSupply;\r
    mapping(address => uint256) private _balances;\r
    mapping(address => mapping(address => uint256)) private _allowances;\r
\r
    address public owner;\r
\r
    event Transfer(address indexed from, address indexed to, uint256 value);\r
    event Approval(address indexed owner, address indexed spender, uint256 value);\r
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\r
\r
    modifier onlyOwner() {\r
        require(msg.sender == owner, "Only owner can call this");\r
        _;\r
    }\r
\r
    constructor(uint256 initialSupply) {\r
        owner = msg.sender;\r
        _mint(owner, initialSupply * 10 ** decimals);\r
    }\r
\r
    function totalSupply() public view returns (uint256) {\r
        return _totalSupply;\r
    }\r
\r
    function balanceOf(address account) public view returns (uint256) {\r
        return _balances[account];\r
    }\r
\r
    function transfer(address recipient, uint256 amount) public returns (bool) {\r
        _transfer(msg.sender, recipient, amount);\r
        return true;\r
    }\r
\r
    function approve(address spender, uint256 amount) public returns (bool) {\r
        _approve(msg.sender, spender, amount);\r
        return true;\r
    }\r
\r
    function allowance(address owner_, address spender) public view returns (uint256) {\r
        return _allowances[owner_][spender];\r
    }\r
\r
    function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) {\r
        uint256 allowed = _allowances[sender][msg.sender];\r
        require(allowed >= amount, "ERC20: allowance exceeded");\r
\r
        _approve(sender, msg.sender, allowed - amount);\r
        _transfer(sender, recipient, amount);\r
        return true;\r
    }\r
\r
    // --- INTERNAL CORE FUNCTIONS ---\r
    function _transfer(address sender, address recipient, uint256 amount) internal {\r
        require(sender != address(0), "ERC20: transfer from zero address");\r
        require(recipient != address(0), "ERC20: transfer to zero address");\r
        require(_balances[sender] >= amount, "ERC20: insufficient balance");\r
\r
        _balances[sender] -= amount;\r
        _balances[recipient] += amount;\r
        emit Transfer(sender, recipient, amount);\r
    }\r
\r
    function _approve(address owner_, address spender, uint256 amount) internal {\r
        require(owner_ != address(0), "ERC20: approve from zero address");\r
        require(spender != address(0), "ERC20: approve to zero address");\r
\r
        _allowances[owner_][spender] = amount;\r
        emit Approval(owner_, spender, amount);\r
    }\r
\r
    // --- MINTING FUNCTION ---\r
    function _mint(address account, uint256 amount) internal {\r
        require(account != address(0), "ERC20: mint to zero address");\r
        _totalSupply += amount;\r
        _balances[account] += amount;\r
        emit Transfer(address(0), account, amount);\r
    }\r
\r
    // --- OWNER PUBLIC MINT ---\r
    function mint(address account, uint256 amount) external onlyOwner {\r
        _mint(account, amount * 10 ** decimals);\r
    }\r
\r
    // --- TRANSFER OWNERSHIP ---\r
    function transferOwnership(address newOwner) external onlyOwner {\r
        require(newOwner != address(0), "New owner is zero address");\r
        emit OwnershipTransferred(owner, newOwner);\r
        owner = newOwner;\r
    }\r
}"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": false,
      "runs": 200
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "remappings": []
  }
}}