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- ERC-20 Tokens (14)401,708.12825645 CROCronos Coin (CRO)$60,348.21@0.150250 CRPTCRPT (CRPT)$0.84@0.016860,776.217939 USDCUSDC (USDC)$60,711.61@0.99890.20341371 CLVAClever103 EGAMEEVERY GAME$0.00@0.003,999.99 TokenERC-20 TOKEN*[Suspicious]3,999.99 TokenERC-20 TOKEN*[Suspicious]9,000 TokenERC-20 TOKEN*[Suspicious]4,214 TokenERC-20 TOKEN*[Suspicious]7,000 TokenERC-20 TOKEN*[Suspicious]350 TokenERC-20 TOKEN*[Suspicious]7,000 TokenERC-20 TOKEN*[Unsafe]9.999 TokenERC-20 TOKEN*[Unsafe]7,000 TokenERC-20 TOKEN*[Spam]NFT Tokens (12)claim rewards on apyusd.netapyusd.netERC-1155claim rewards on cronosprotocol.comcronosprotocol.comERC-1155Reward Club [Gu6Z7sfc]Reward Club [2vVlzIw8]ERC-1155ERC-1155 TOKEN*[Suspicious]
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Transaction Hash MethodBlockFromToApprove 13615549 2021-11-14 18:27:45 1137 days ago 1636914465 IN 0 ETH$0.00 0.00524161 113 Approve 13397571 2021-10-11 13:34:17 1171 days ago 1633959257 IN 0 ETH$0.00 0.0032934 71 Approve 12222981 2021-04-12 4:05:40 1354 days ago 1618200340 IN 0 ETH$0.00 0.00303359 68.50000072 Approve 12166433 2021-04-03 11:53:07 1362 days ago 1617450787 IN 0 ETH$0.00 0.0053586 121 Approve 12160990 2021-04-02 15:55:24 1363 days ago 1617378924 IN 0 ETH$0.00 0.01711211 386.4 Approve 12155744 2021-04-01 20:23:43 1364 days ago 1617308623 IN 0 ETH$0.00 0.00620004 140 Approve 12150909 2021-04-01 2:23:56 1365 days ago 1617243836 IN 0 ETH$0.00 0.00642147 145 Approve 12147800 2021-03-31 15:05:13 1365 days ago 1617203113 IN 0 ETH$0.00 0.00984034 222.2 Approve 11952893 2021-03-01 14:31:43 1395 days ago 1614609103 IN 0 ETH$0.00 0.0036868 83.25 Approve 11925092 2021-02-25 7:57:11 1400 days ago 1614239831 IN 0 ETH$0.00 0.00338661 135.00000145 Approve 11925077 2021-02-25 7:53:32 1400 days ago 1614239612 IN 0 ETH$0.00 0.0066429 150 Approve 11905475 2021-02-22 7:25:33 1403 days ago 1613978733 IN 0 ETH$0.00 0.00531432 120 Approve 11905399 2021-02-22 7:06:08 1403 days ago 1613977568 IN 0 ETH$0.00 0.00434002 98 Approve 11855397 2021-02-14 14:35:37 1410 days ago 1613313337 IN 0 ETH$0.00 0.00584575 132 Approve 11737555 2021-01-27 11:28:06 1428 days ago 1611746886 IN 0 ETH$0.00 0.00279001 63 Approve 11731595 2021-01-26 13:31:45 1429 days ago 1611667905 IN 0 ETH$0.00 0.00469431 106 Approve 11615681 2021-01-08 18:21:53 1447 days ago 1610130113 IN 0 ETH$0.00 0.00394145 89 Approve 11580477 2021-01-03 8:47:43 1452 days ago 1609663663 IN 0 ETH$0.00 0.00358716 81 Approve 11570327 2021-01-01 19:24:38 1454 days ago 1609529078 IN 0 ETH$0.00 0.00186001 42 Approve 11550632 2020-12-29 18:50:44 1457 days ago 1609267844 IN 0 ETH$0.00 0.00203715 46 Approve 11466580 2020-12-16 21:22:38 1470 days ago 1608153758 IN 0 ETH$0.00 0.0014415 32.55 Sync 11459883 2020-12-15 20:38:40 1471 days ago 1608064720 IN 0 ETH$0.00 0.0027626 50 Skim 11459850 2020-12-15 20:31:37 1471 days ago 1608064297 IN 0 ETH$0.00 0.00301735 50 Approve 11369076 2020-12-01 21:18:43 1485 days ago 1606857523 IN 0 ETH$0.00 0.00090786 20.5 Approve 11354020 2020-11-29 13:52:12 1487 days ago 1606657932 IN 0 ETH$0.00 0.00052257 11.8 Latest 1 internal transaction
Advanced mode:Parent Transaction Hash Block FromTo10828523 2020-09-09 16:17:09 1568 days ago 1599668229 Contract Creation 0 ETH$0.00 Loading...LoadingSimilar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x9EF7e917...eD8979350The constructor portion of the code might be different and could alter the actual behaviour of the contractContract Name:CroDefiSwapPair
Compiler Versionv0.5.16+commit.9c3226ce
Contract Source Code (Solidity)
- interface ICroDefiSwapPair
- - function name()
- - function symbol()
- - function decimals()
- - function totalSupply()
- - function balanceOf(address owner)
- - function allowance(address owner, add ...
- - function approve(address spender, uin ...
- - function transfer(address to, uint va ...
- - function transferFrom(address from, a ...
- - function DOMAIN_SEPARATOR()
- - function PERMIT_TYPEHASH()
- - function nonces(address owner)
- - function permit(address owner, addres ...
- - function MINIMUM_LIQUIDITY()
- - function factory()
- - function token0()
- - function token1()
- - function getReserves()
- - function price0CumulativeLast()
- - function price1CumulativeLast()
- - function kLast()
- - function mint(address to)
- - function burn(address to)
- - function swap(uint amount0Out, uint a ...
- - function skim(address to)
- - function sync()
- - function initialize(address, address)
- interface ICroDefiSwapERC20
- - function name()
- - function symbol()
- - function decimals()
- - function totalSupply()
- - function balanceOf(address owner)
- - function allowance(address owner, add ...
- - function approve(address spender, uin ...
- - function transfer(address to, uint va ...
- - function transferFrom(address from, a ...
- - function DOMAIN_SEPARATOR()
- - function PERMIT_TYPEHASH()
- - function nonces(address owner)
- - function permit(address owner, addres ...
- library SafeMath
- - function add(uint x, uint y)
- - function sub(uint x, uint y)
- - function mul(uint x, uint y)
- contract CroDefiSwapERC20 is ICroD ...
- - function _mint(address to, uint value ...
- - function _burn(address from, uint val ...
- - function _approve(address owner, addr ...
- - function _transfer(address from, addr ...
- - function approve(address spender, uin ...
- - function transfer(address to, uint va ...
- - function transferFrom(address from, a ...
- - function permit(address owner, addres ...
- library Math
- - function min(uint x, uint y)
- - function sqrt(uint y)
- library UQ112x112
- - function encode(uint112 y)
- - function uqdiv(uint224 x, uint112 y)
- interface IERC20
- - function name()
- - function symbol()
- - function decimals()
- - function totalSupply()
- - function balanceOf(address owner)
- - function allowance(address owner, add ...
- - function approve(address spender, uin ...
- - function transfer(address to, uint va ...
- - function transferFrom(address from, a ...
- interface ICroDefiSwapFactory
- - function feeTo()
- - function feeToBasisPoint()
- - function totalFeeBasisPoint()
- - function feeSetter()
- - function getPair(address tokenA, addr ...
- - function allPairs(uint)
- - function allPairsLength()
- - function createPair(address tokenA, a ...
- - function setFeeTo(address)
- - function setFeeToBasisPoint(uint)
- - function setTotalFeeBasisPoint(uint)
- - function setFeeSetter(address)
- interface ICroDefiSwapCallee
- - function croDefiSwapCall(address send ...
- contract CroDefiSwapPair is ICroDe ... *
- - function getReserves()
- - function _safeTransfer(address token, ...
- - function initialize(address _token0, ...
- - function _update(uint balance0, uint ...
- - function _mintFee(uint112 _reserve0, ...
- - function mint(address to)
- - function burn(address to)
- - function swap(uint amount0Out, uint a ...
- - function skim(address to)
- - function sync()
/** *Submitted for verification at Etherscan.io on 2020-09-11 */ // File: contracts/interfaces/ICroDefiSwapPair.sol pragma solidity >=0.5.0; interface ICroDefiSwapPair { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint 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 (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint 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 (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; event Mint(address indexed sender, uint amount0, uint amount1); event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); function MINIMUM_LIQUIDITY() external pure returns (uint); 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 (uint); function price1CumulativeLast() external view returns (uint); function kLast() external view returns (uint); function mint(address to) external returns (uint liquidity); function burn(address to) external returns (uint amount0, uint amount1); function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external; function skim(address to) external; function sync() external; function initialize(address, address) external; } // File: contracts/interfaces/ICroDefiSwapERC20.sol pragma solidity >=0.5.0; interface ICroDefiSwapERC20 { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint 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 (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint 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 (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; } // File: contracts/libraries/SafeMath.sol pragma solidity =0.5.16; // a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math) library SafeMath { function add(uint x, uint y) internal pure returns (uint z) { require((z = x + y) >= x, 'ds-math-add-overflow'); } function sub(uint x, uint y) internal pure returns (uint z) { require((z = x - y) <= x, 'ds-math-sub-underflow'); } function mul(uint x, uint y) internal pure returns (uint z) { require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow'); } } // File: contracts/CroDefiSwapERC20.sol pragma solidity =0.5.16; contract CroDefiSwapERC20 is ICroDefiSwapERC20 { using SafeMath for uint; string public constant name = 'CRO Defi Swap'; string public constant symbol = 'CRO-SWAP'; uint8 public constant decimals = 18; uint public totalSupply; mapping(address => uint) public balanceOf; mapping(address => mapping(address => uint)) public allowance; bytes32 public DOMAIN_SEPARATOR; // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9; mapping(address => uint) public nonces; event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); constructor() public { uint chainId; assembly { chainId := chainid } DOMAIN_SEPARATOR = keccak256( abi.encode( keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'), keccak256(bytes(name)), keccak256(bytes('1')), chainId, address(this) ) ); } function _mint(address to, uint value) internal { totalSupply = totalSupply.add(value); balanceOf[to] = balanceOf[to].add(value); emit Transfer(address(0), to, value); } function _burn(address from, uint value) internal { balanceOf[from] = balanceOf[from].sub(value); totalSupply = totalSupply.sub(value); emit Transfer(from, address(0), value); } function _approve(address owner, address spender, uint value) private { allowance[owner][spender] = value; emit Approval(owner, spender, value); } function _transfer(address from, address to, uint value) private { balanceOf[from] = balanceOf[from].sub(value); balanceOf[to] = balanceOf[to].add(value); emit Transfer(from, to, value); } function approve(address spender, uint value) external returns (bool) { _approve(msg.sender, spender, value); return true; } function transfer(address to, uint value) external returns (bool) { _transfer(msg.sender, to, value); return true; } function transferFrom(address from, address to, uint value) external returns (bool) { if (allowance[from][msg.sender] != uint(-1)) { allowance[from][msg.sender] = allowance[from][msg.sender].sub(value); } _transfer(from, to, value); return true; } function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external { require(deadline >= block.timestamp, 'CroDefiSwap: EXPIRED'); bytes32 digest = keccak256( abi.encodePacked( '\x19\x01', DOMAIN_SEPARATOR, keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline)) ) ); address recoveredAddress = ecrecover(digest, v, r, s); require(recoveredAddress != address(0) && recoveredAddress == owner, 'CroDefiSwap: INVALID_SIGNATURE'); _approve(owner, spender, value); } } // File: contracts/libraries/Math.sol pragma solidity =0.5.16; // a library for performing various math operations library Math { function min(uint x, uint y) internal pure returns (uint z) { z = x < y ? x : y; } // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method) function sqrt(uint y) internal pure returns (uint z) { if (y > 3) { z = y; uint x = y / 2 + 1; while (x < z) { z = x; x = (y / x + x) / 2; } } else if (y != 0) { z = 1; } } } // File: contracts/libraries/UQ112x112.sol pragma solidity =0.5.16; // a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format)) // range: [0, 2**112 - 1] // resolution: 1 / 2**112 library UQ112x112 { uint224 constant Q112 = 2**112; // encode a uint112 as a UQ112x112 function encode(uint112 y) internal pure returns (uint224 z) { z = uint224(y) * Q112; // never overflows } // divide a UQ112x112 by a uint112, returning a UQ112x112 function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) { z = x / uint224(y); } } // File: contracts/interfaces/IERC20.sol pragma solidity >=0.5.0; interface IERC20 { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); } // File: contracts/interfaces/ICroDefiSwapFactory.sol pragma solidity >=0.5.0; interface ICroDefiSwapFactory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function feeTo() external view returns (address); function feeToBasisPoint() external view returns (uint); // technically must be bigger than or equal to feeToBasisPoint function totalFeeBasisPoint() external view returns (uint); function feeSetter() external view returns (address); function getPair(address tokenA, address tokenB) external view returns (address pair); function allPairs(uint) external view returns (address pair); function allPairsLength() external view returns (uint); function createPair(address tokenA, address tokenB) external returns (address pair); function setFeeTo(address) external; function setFeeToBasisPoint(uint) external; function setTotalFeeBasisPoint(uint) external; function setFeeSetter(address) external; } // File: contracts/interfaces/ICroDefiSwapCallee.sol pragma solidity >=0.5.0; interface ICroDefiSwapCallee { function croDefiSwapCall(address sender, uint amount0, uint amount1, bytes calldata data) external; } // File: contracts/CroDefiSwapPair.sol pragma solidity =0.5.16; contract CroDefiSwapPair is ICroDefiSwapPair, CroDefiSwapERC20 { using SafeMath for uint; using UQ112x112 for uint224; uint public constant MINIMUM_LIQUIDITY = 10**3; bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)'))); address public factory; address public token0; address public token1; uint112 private reserve0; // uses single storage slot, accessible via getReserves uint112 private reserve1; // uses single storage slot, accessible via getReserves uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves uint public price0CumulativeLast; uint public price1CumulativeLast; uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event uint private unlocked = 1; modifier lock() { require(unlocked == 1, 'CroDefiSwap: LOCKED'); unlocked = 0; _; unlocked = 1; } function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) { _reserve0 = reserve0; _reserve1 = reserve1; _blockTimestampLast = blockTimestampLast; } function _safeTransfer(address token, address to, uint value) private { (bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value)); require(success && (data.length == 0 || abi.decode(data, (bool))), 'CroDefiSwap: TRANSFER_FAILED'); } event Mint(address indexed sender, uint amount0, uint amount1); event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); constructor() public { factory = msg.sender; } // called once by the factory at time of deployment function initialize(address _token0, address _token1) external { require(msg.sender == factory, 'CroDefiSwap: FORBIDDEN'); // sufficient check token0 = _token0; token1 = _token1; } // update reserves and, on the first call per block, price accumulators function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private { require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'CroDefiSwap: OVERFLOW'); uint32 blockTimestamp = uint32(block.timestamp % 2**32); uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) { // * never overflows, and + overflow is desired price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed; price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed; } reserve0 = uint112(balance0); reserve1 = uint112(balance1); blockTimestampLast = blockTimestamp; emit Sync(reserve0, reserve1); } // if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k) function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) { address feeTo = ICroDefiSwapFactory(factory).feeTo(); uint feeToBasisPoint = ICroDefiSwapFactory(factory).feeToBasisPoint(); feeOn = (feeTo != address(0)) && (feeToBasisPoint > 0); uint _kLast = kLast; // gas savings if (feeOn) { if (_kLast != 0) { uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1)); uint rootKLast = Math.sqrt(_kLast); if (rootK > rootKLast) { uint numerator = totalSupply.mul(rootK.sub(rootKLast)); uint denominator = rootK.mul(feeToBasisPoint).add(rootKLast); uint liquidity = numerator / denominator; if (liquidity > 0) _mint(feeTo, liquidity); } } } else if (_kLast != 0) { kLast = 0; } } // this low-level function should be called from a contract which performs important safety checks function mint(address to) external lock returns (uint liquidity) { (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings uint balance0 = IERC20(token0).balanceOf(address(this)); uint balance1 = IERC20(token1).balanceOf(address(this)); uint amount0 = balance0.sub(_reserve0); uint amount1 = balance1.sub(_reserve1); bool feeOn = _mintFee(_reserve0, _reserve1); uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee if (_totalSupply == 0) { liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY); _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens } else { liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1); } require(liquidity > 0, 'CroDefiSwap: INSUFFICIENT_LIQUIDITY_MINTED'); _mint(to, liquidity); _update(balance0, balance1, _reserve0, _reserve1); if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date emit Mint(msg.sender, amount0, amount1); } // this low-level function should be called from a contract which performs important safety checks function burn(address to) external lock returns (uint amount0, uint amount1) { (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings address _token0 = token0; // gas savings address _token1 = token1; // gas savings uint balance0 = IERC20(_token0).balanceOf(address(this)); uint balance1 = IERC20(_token1).balanceOf(address(this)); uint liquidity = balanceOf[address(this)]; bool feeOn = _mintFee(_reserve0, _reserve1); uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution require(amount0 > 0 && amount1 > 0, 'CroDefiSwap: INSUFFICIENT_LIQUIDITY_BURNED'); _burn(address(this), liquidity); _safeTransfer(_token0, to, amount0); _safeTransfer(_token1, to, amount1); balance0 = IERC20(_token0).balanceOf(address(this)); balance1 = IERC20(_token1).balanceOf(address(this)); _update(balance0, balance1, _reserve0, _reserve1); if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date emit Burn(msg.sender, amount0, amount1, to); } // this low-level function should be called from a contract which performs important safety checks function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock { require(amount0Out > 0 || amount1Out > 0, 'CroDefiSwap: INSUFFICIENT_OUTPUT_AMOUNT'); (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings require(amount0Out < _reserve0 && amount1Out < _reserve1, 'CroDefiSwap: INSUFFICIENT_LIQUIDITY'); uint balance0; uint balance1; { // scope for _token{0,1}, avoids stack too deep errors address _token0 = token0; address _token1 = token1; require(to != _token0 && to != _token1, 'CroDefiSwap: INVALID_TO'); if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens if (data.length > 0) ICroDefiSwapCallee(to).croDefiSwapCall(msg.sender, amount0Out, amount1Out, data); balance0 = IERC20(_token0).balanceOf(address(this)); balance1 = IERC20(_token1).balanceOf(address(this)); } uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0; uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0; require(amount0In > 0 || amount1In > 0, 'CroDefiSwap: INSUFFICIENT_INPUT_AMOUNT'); { // scope for reserve{0,1}Adjusted, avoids stack too deep errors uint magnifier = 10000; uint totalFeeBasisPoint = ICroDefiSwapFactory(factory).totalFeeBasisPoint(); uint balance0Adjusted = balance0.mul(magnifier).sub(amount0In.mul(totalFeeBasisPoint)); uint balance1Adjusted = balance1.mul(magnifier).sub(amount1In.mul(totalFeeBasisPoint)); // reference: https://uniswap.org/docs/v2/protocol-overview/glossary/#constant-product-formula require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(magnifier**2), 'CroDefiSwap: Constant product formula condition not met!'); } _update(balance0, balance1, _reserve0, _reserve1); emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to); } // force balances to match reserves function skim(address to) external lock { address _token0 = token0; // gas savings address _token1 = token1; // gas savings _safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0)); _safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1)); } // force reserves to match balances function sync() external lock { _update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1); } }
Contract Security Audit
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Contract ABI
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Deployed Bytecode
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Swarm Source
bzzr://72febb9060e99697097d30ad78467c0deb02dffa096d3e1e0b5f205a8bec5dfa
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Loading...LoadingLoading...LoadingLoading...LoadingLoading...LoadingLoading...LoadingLoading...LoadingLoading...Loading[ Download: CSV Export ][ Download: CSV Export ]A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.
Address QR Code
My Address - Private Name Tag or Note
My Name Tag:
Private Name Tags (up to 35 characters) can be used for easy identification of addressesPrivate Note:
A private note (up to 500 characters) can be attached to this address.
Please DO NOT store any passwords or private keys here.Compiler specific version warnings:
The compiled contract might be susceptible to AbiReencodingHeadOverflowWithStaticArrayCleanup (medium-severity), DirtyBytesArrayToStorage (low-severity), NestedCalldataArrayAbiReencodingSizeValidation (very low-severity), ABIDecodeTwoDimensionalArrayMemory (very low-severity), KeccakCaching (medium-severity), EmptyByteArrayCopy (medium-severity), DynamicArrayCleanup (medium-severity), MissingEscapingInFormatting (very low-severity), ImplicitConstructorCallvalueCheck (very low-severity), TupleAssignmentMultiStackSlotComponents (very low-severity), MemoryArrayCreationOverflow (low-severity), privateCanBeOverridden (low-severity) Solidity Compiler Bugs.
Connect a Wallet
Connecting wallet for read function is optional, useful if you want to call certain functions or simply use your wallet's node.Connect a Wallet
Connecting wallet for read function is optional, useful if you want to call certain functions or simply use your wallet's node.Connect a Wallet
Connecting wallet for read function is optional, useful if you want to call certain functions or simply use your wallet's node.SignIn
Address Cards
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Transaction Private Note
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