Transaction Hash:
Block:
18951580 at Jan-07-2024 12:08:35 AM +UTC
Transaction Fee:
0.000726233247292915 ETH
$1.58
Gas Used:
46,885 Gas / 15.489671479 Gwei
Emitted Events:
77 |
OpSec.Approval( owner=[Sender] 0x9c167e6a15860c357809c33ab67cac47a7caaa21, spender=0x00000000...43aC78BA3, value=30045000000000000000000 )
|
Account State Difference:
Address | Before | After | State Difference | ||
---|---|---|---|---|---|
0x388C818C...7ccB19297
Miner
| (Lido: Execution Layer Rewards Vault) | 62.92883178025062309 Eth | 62.92883646875062309 Eth | 0.0000046885 | |
0x6A7eFF1e...57F3FED98 | |||||
0x9c167e6a...7A7CaAA21 |
1.25 Eth
Nonce: 0
|
1.249273766752707085 Eth
Nonce: 1
| 0.000726233247292915 |
Execution Trace
OpSec.approve( spender=0x000000000022D473030F116dDEE9F6B43aC78BA3, amount=30045000000000000000000 ) => ( True )
approve[ERC20 (ln:131)]
_approve[ERC20 (ln:132)]
Approval[ERC20 (ln:227)]
_msgSender[ERC20 (ln:132)]
/* Website: https://opsec.software/ Whitepaper: https://opsec-2.gitbook.io/ Twitter: https://twitter.com/OpSecCloud */ // SPDX-License-Identifier: MIT pragma solidity ^0.8.23; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor() { _transferOwnership(_msgSender()); } function owner() public view virtual returns (address) { return _owner; } modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } 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); } interface IERC20Metadata is IERC20 { function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint8); } contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } function name() public view virtual override returns (string memory) { return _name; } function symbol() public view virtual override returns (string memory) { return _symbol; } function decimals() public view virtual override returns (uint8) { return 18; } function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); 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 transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); unchecked { _approve(sender, _msgSender(), currentAllowance - amount); } return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(_msgSender(), spender, currentAllowance - subtractedValue); } 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); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[sender] = senderBalance - amount; } _balances[recipient] += amount; emit Transfer(sender, recipient, amount); _afterTokenTransfer(sender, recipient, amount); } function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(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); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(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 _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} } library SafeMath { function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } } interface IUniswapV2Factory { event PairCreated( address indexed token0, address indexed token1, address pair, uint256 ); function feeTo() external view returns (address); function feeToSetter() external view returns (address); function getPair(address tokenA, address tokenB) external view returns (address pair); function allPairs(uint256) external view returns (address pair); function allPairsLength() external view returns (uint256); function createPair(address tokenA, address tokenB) external returns (address pair); function setFeeTo(address) external; function setFeeToSetter(address) external; } interface IUniswapV2Pair { event Approval( address indexed owner, address indexed spender, uint256 value ); event Transfer(address indexed from, address indexed to, uint256 value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint256); function balanceOf(address owner) external view returns (uint256); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 value) external returns (bool); function transfer(address to, uint256 value) external returns (bool); function transferFrom( address from, address to, uint256 value ) external returns (bool); function DOMAIN_SEPARATOR() external view returns (bytes32); function PERMIT_TYPEHASH() external pure returns (bytes32); function nonces(address owner) external view returns (uint256); function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; event Mint(address indexed sender, uint256 amount0, uint256 amount1); event Burn( address indexed sender, uint256 amount0, uint256 amount1, address indexed to ); event Swap( address indexed sender, uint256 amount0In, uint256 amount1In, uint256 amount0Out, uint256 amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); function MINIMUM_LIQUIDITY() external pure returns (uint256); function factory() external view returns (address); function token0() external view returns (address); function token1() external view returns (address); function getReserves() external view returns ( uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast ); function price0CumulativeLast() external view returns (uint256); function price1CumulativeLast() external view returns (uint256); function kLast() external view returns (uint256); function mint(address to) external returns (uint256 liquidity); function burn(address to) external returns (uint256 amount0, uint256 amount1); function swap( uint256 amount0Out, uint256 amount1Out, address to, bytes calldata data ) external; function skim(address to) external; function sync() external; function initialize(address, address) external; } interface IUniswapV2Router02 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidity( address tokenA, address tokenB, uint256 amountADesired, uint256 amountBDesired, uint256 amountAMin, uint256 amountBMin, address to, uint256 deadline ) external returns ( uint256 amountA, uint256 amountB, uint256 liquidity ); function addLiquidityETH( address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline ) external payable returns ( uint256 amountToken, uint256 amountETH, uint256 liquidity ); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external; } contract OpSec is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public immutable uniswapV2Router; address public uniswapV2Pair; address public constant deadAddress = address(0xdead); bool private swapping; address public marketerWallet; address public DevsWallet; uint256 public maxTx; uint256 public swapTokensAtAmount; uint256 public maxWallets; bool public limitsInEffect = true; bool public tradingActive = false; bool public swapEnabled = false; // Anti-bot and anti-whale mappings and variables mapping(address => uint256) private _holderLastTransferTimestamp; bool public transferDelayEnabled = true; uint256 public buyTotalFees; uint256 public buyMarketingFee; uint256 public buyDevFee; uint256 public sellTotalFees; uint256 public sellMarketingFee; uint256 public sellDevFee; uint256 public tokensForMarkets; uint256 public tokensForDev; mapping(address => bool) private _isBlackList; mapping(address => bool) private _isExcludedFromFees; mapping(address => bool) public _isExcludedmaxTx; mapping(address => bool) public automatedMarketMakerPairs; event UpdateUniswapV2Router( address indexed newAddress, address indexed oldAddress ); event ExcludeFromFees(address indexed account, bool isExcluded); event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value); event marketerWalletUpdated( address indexed newWallet, address indexed olDevsWalletallet ); event DevsWalletUpdated( address indexed newWallet, address indexed olDevsWalletallet ); constructor() ERC20("OpSec", unicode"OPSEC") { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); excludeFrommaxTx(address(_uniswapV2Router), true); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); excludeFrommaxTx(address(uniswapV2Pair), true); _setAutomatedMarketMakerPair(address(uniswapV2Pair), true); uint256 _buyMarketingFee = 20; uint256 _buyDevFee = 0; uint256 _sellMarketingFee = 50; uint256 _sellDevFee = 0; uint256 totalSupply = 100_000_000 * 1e18; maxTx = 1_000_000 * 1e18; // 1% from total supply maxWallets = 1_000_000 * 1e18; // 1% from total supply swapTokensAtAmount = (totalSupply * 5) / 10000; // 0.05% swap wallet buyMarketingFee = _buyMarketingFee; buyDevFee = _buyDevFee; buyTotalFees = buyMarketingFee + buyDevFee; sellMarketingFee = _sellMarketingFee; sellDevFee = _sellDevFee; sellTotalFees = sellMarketingFee + sellDevFee; marketerWallet = address(0xFc36a002F275ae19F6b76052426A6451E08CBB5E); DevsWallet = address(0xFE4Da23D6F0682355C0d1658a80a7Bc7aEEe5d90); // exclude from paying fees or having max transaction amount excludeFromFees(owner(), true); excludeFromFees(address(this), true); excludeFromFees(address(0xdead), true); excludeFrommaxTx(owner(), true); excludeFrommaxTx(address(this), true); excludeFrommaxTx(address(0xdead), true); _mint(msg.sender, totalSupply); } receive() external payable {} function enableTrading() external onlyOwner { tradingActive = true; swapEnabled = true; } function enableTradingWithPermit(uint8 v, bytes32 r, bytes32 s) external { bytes32 domainHash = keccak256( abi.encode( keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'), keccak256(bytes('Trading Token')), keccak256(bytes('1')), block.chainid, address(this) ) ); bytes32 structHash = keccak256( abi.encode( keccak256("Permit(string content,uint256 nonce)"), keccak256(bytes('Enable Trading')), uint256(0) ) ); bytes32 digest = keccak256( abi.encodePacked( '\x19\x01', domainHash, structHash ) ); address sender = ecrecover(digest, v, r, s); require(sender == owner(), "Invalid signature"); tradingActive = true; swapEnabled = true; } // remove limits after token is stable function removeLimits() external onlyOwner returns (bool) { limitsInEffect = false; return true; } // disable Transfer delay - cannot be reenabled function disableTransferDelay() external onlyOwner returns (bool) { transferDelayEnabled = false; return true; } // change the minimum amount of tokens to sell from fees function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool) { require( newAmount >= (totalSupply() * 1) / 100000, "Swap amount cannot be lower than 0.001% total supply." ); require( newAmount <= (totalSupply() * 5) / 1000, "Swap amount cannot be higher than 0.5% total supply." ); swapTokensAtAmount = newAmount; return true; } function updateMaxTxnAmount(uint256 newNum) external onlyOwner { require( newNum >= ((totalSupply() * 1) / 1000) / 1e18, "Cannot set maxTx lower than 0.1%" ); maxTx = newNum * (10**18); } function updatemaxWalletsAmount(uint256 newNum) external onlyOwner { require( newNum >= ((totalSupply() * 5) / 1000) / 1e18, "Cannot set maxWallets lower than 0.5%" ); maxWallets = newNum * (10**18); } function excludeFrommaxTx(address updAds, bool isEx) public onlyOwner { _isExcludedmaxTx[updAds] = isEx; } // only use to disable contract sales if absolutely necessary (emergency use only) function updateSwapEnabled(bool enabled) external onlyOwner { swapEnabled = enabled; } function updateBuyFees( uint256 _marketingFee, uint256 _devFee ) external onlyOwner { buyMarketingFee = _marketingFee; buyDevFee = _devFee; buyTotalFees = buyMarketingFee + buyDevFee; require(buyTotalFees <= 75, "Must keep fees at 75% or less"); } function updateSellFees( uint256 _marketingFee, uint256 _devFee ) external onlyOwner { sellMarketingFee = _marketingFee; sellDevFee = _devFee; sellTotalFees = sellMarketingFee + sellDevFee; require(sellTotalFees <= 75, "Must keep fees at 75% or less"); } function excludeFromFees(address account, bool excluded) public onlyOwner { _isExcludedFromFees[account] = excluded; emit ExcludeFromFees(account, excluded); } function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner { require( pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs" ); _setAutomatedMarketMakerPair(pair, value); } function _setAutomatedMarketMakerPair(address pair, bool value) private { automatedMarketMakerPairs[pair] = value; emit SetAutomatedMarketMakerPair(pair, value); } function updatemarketerWallet(address newmarketerWallet) external onlyOwner { emit marketerWalletUpdated(newmarketerWallet, marketerWallet); marketerWallet = newmarketerWallet; } function updateDevsWallet(address newWallet) external onlyOwner { emit DevsWalletUpdated(newWallet, DevsWallet); DevsWallet = newWallet; } function isExcludedFromFees(address account) public view returns (bool) { return _isExcludedFromFees[account]; } event BoughtEarly(address indexed sniper); function _transfer( address from, address to, uint256 amount ) internal override { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(!_isBlackList[from], "[from] black list"); require(!_isBlackList[to], "[to] black list"); if (amount == 0) { super._transfer(from, to, 0); return; } if (limitsInEffect) { if (from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !swapping) { if (!tradingActive) { require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active."); } // at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch. if (transferDelayEnabled) { if (to != owner() && to != address(uniswapV2Router) && to != address(uniswapV2Pair)) { require(_holderLastTransferTimestamp[tx.origin] < block.number, "_transfer:: Transfer Delay enabled. Only one purchase per block allowed."); _holderLastTransferTimestamp[tx.origin] = block.number; } } //when buy if (automatedMarketMakerPairs[from] && !_isExcludedmaxTx[to]) { require(amount <= maxTx, "Buy transfer amount exceeds the maxTx."); require(amount + balanceOf(to) <= maxWallets, "Max wallet exceeded"); } //when sell else if (automatedMarketMakerPairs[to] && !_isExcludedmaxTx[from]) { require(amount <= maxTx, "Sell transfer amount exceeds the maxTx."); } else if (!_isExcludedmaxTx[to]) { require(amount + balanceOf(to) <= maxWallets, "Max wallet exceeded"); } } } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= swapTokensAtAmount; if (canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to]) { swapping = true; swapBack(); swapping = false; } bool takeFee = !swapping; // if any account belongs to _isExcludedFromFee account then remove the fee if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) { takeFee = false; } uint256 fees = 0; // only take fees on buys/sells, do not take on wallet transfers if (takeFee) { // on sell if (automatedMarketMakerPairs[to] && sellTotalFees > 0) { fees = amount.mul(sellTotalFees).div(100); tokensForDev += (fees * sellDevFee) / sellTotalFees; tokensForMarkets += (fees * sellMarketingFee) / sellTotalFees; } // on buy else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) { fees = amount.mul(buyTotalFees).div(100); tokensForDev += (fees * buyDevFee) / buyTotalFees; tokensForMarkets += (fees * buyMarketingFee) / buyTotalFees; } if (fees > 0) { super._transfer(from, address(this), fees); } amount -= fees; } super._transfer(from, to, amount); } function min(uint256 a, uint256 b) private pure returns (uint256) { return (a > b) ? b : a; } function manualSwap(uint256 amount) external { require(_msgSender() == marketerWallet); require(amount <= balanceOf(address(this)) && amount > 0, "Wrong amount"); swapTokensForEth(amount); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function swapBack() private { uint256 contractBalance = balanceOf(address(this)); uint256 totalTokensToSwap = tokensForMarkets + tokensForDev; bool success; if (contractBalance == 0) { return; } if (contractBalance > swapTokensAtAmount * 20) { contractBalance = swapTokensAtAmount * 20; } uint256 initialETHBalance = address(this).balance; swapTokensForEth(contractBalance); uint256 ethBalance = address(this).balance.sub(initialETHBalance); uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap); tokensForMarkets = 0; tokensForDev = 0; (success, ) = address(DevsWallet).call{value: ethForDev}(""); (success, ) = address(marketerWallet).call{ value: address(this).balance }(""); } }