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Contract

0x3BE03D711d668b5353c31e86a1343AC412A9407E
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Approve3868339992025-10-06 23:45:22111 days ago1759794322IN
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Parent Transaction Hash Block From To
727290172023-03-23 6:24:351039 days ago1679552675  Contract Creation0 ETH

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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x2036c712...a29c25465
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
OreoSwapPair

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

// SPDX-License-Identifier: GPL-3.0

pragma solidity =0.6.12;

import './OreoSwapLP.sol';
import './libraries/OreoSwapMath.sol';
import './libraries/UQ112x112.sol';
import './interfaces/IOreoSwapBEP20.sol';
import './interfaces/IOreoSwapFactory.sol';
import './interfaces/IOreoSwapCallee.sol';

contract OreoSwapPair is OreoSwapLP {
  using OreoSwapSafeMath  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, 'OreoSwapPair::lock::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))), 'OreoSwapPair::_safeTransfer::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, 'OreoSwapPair::initialize::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), 'OreoSwapPair::_update::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 8/25 of the growth in sqrt(k)
  function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
    address feeTo = IOreoSwapFactory(factory).feeTo();
    feeOn = feeTo != address(0);
    uint _kLast = kLast; // gas savings
    if (feeOn) {
      if (_kLast != 0) {
        uint rootK = OreoSwapMath.sqrt(uint(_reserve0).mul(_reserve1));
        uint rootKLast = OreoSwapMath.sqrt(_kLast);
        if (rootK > rootKLast) {
          uint numerator = totalSupply.mul(rootK.sub(rootKLast)).mul(8);
          uint denominator = rootK.mul(17).add(rootKLast.mul(8));
          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 = IOreoSwapBEP20(token0).balanceOf(address(this));
    uint balance1 = IOreoSwapBEP20(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 = OreoSwapMath.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
      _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
    } else {
      liquidity = OreoSwapMath.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
    }
    require(liquidity > 0, 'OreoSwapPair::mint::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 = IOreoSwapBEP20(_token0).balanceOf(address(this));
    uint balance1 = IOreoSwapBEP20(_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, 'OreoSwapPair::burn::INSUFFICIENT_LIQUIDITY_BURNED');
    _burn(address(this), liquidity);
    _safeTransfer(_token0, to, amount0);
    _safeTransfer(_token1, to, amount1);
    balance0 = IOreoSwapBEP20(_token0).balanceOf(address(this));
    balance1 = IOreoSwapBEP20(_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, 'OreoSwapPair::swap::INSUFFICIENT_OUTPUT_AMOUNT');
      (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
      require(amount0Out < _reserve0 && amount1Out < _reserve1, 'OreoSwapPair::swap::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, 'OreoSwapPair::swap::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) IOreoSwapCallee(to).OreoSwapCall(msg.sender, amount0Out, amount1Out, data);
      balance0 = IOreoSwapBEP20(_token0).balanceOf(address(this));
      balance1 = IOreoSwapBEP20(_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, 'OreoSwapPair::swap::INSUFFICIENT_INPUT_AMOUNT');
      { // scope for reserve{0,1}Adjusted, avoids stack too deep errors
      uint balance0Adjusted = balance0.mul(10000).sub(amount0In.mul(25));
      uint balance1Adjusted = balance1.mul(10000).sub(amount1In.mul(25));
      require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(10000**2), 'OreoSwapPair::swap::K');
      }

      _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, IOreoSwapBEP20(_token0).balanceOf(address(this)).sub(reserve0));
      _safeTransfer(_token1, to, IOreoSwapBEP20(_token1).balanceOf(address(this)).sub(reserve1));
  }

  // force reserves to match balances
  function sync() external lock {
      _update(IOreoSwapBEP20(token0).balanceOf(address(this)), IOreoSwapBEP20(token1).balanceOf(address(this)), reserve0, reserve1);
  }
}

// SPDX-License-Identifier: GPL-3.0

pragma solidity =0.6.12;

import './libraries/OreoSwapSafeMath.sol';

contract OreoSwapLP {
  using OreoSwapSafeMath for uint;

  string public constant name = 'OreoSwap LP Token';
  string public constant symbol = 'Oreo-LP';
  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, 'OreoSwapLP::permit::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, 'OreoSwapLP::permit::INVALID_SIGNATURE');
    _approve(owner, spender, value);
  }
}

// SPDX-License-Identifier: GPL-3.0

pragma solidity =0.6.12;

// a library for performing various math operations
library OreoSwapMath {
  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)
  // reference: https://github.com/abdk-consulting/abdk-libraries-solidity/blob/master/ABDKMath64x64.sol#L687
  function sqrt(uint x) internal pure returns (uint z) {
    if (x == 0) return 0;
    uint xx = x;
    uint r = 1;

    if (xx >= 0x100000000000000000000000000000000) {
      xx >>= 128;
      r <<= 64;
    }

    if (xx >= 0x10000000000000000) {
      xx >>= 64;
      r <<= 32;
    }
    if (xx >= 0x100000000) {
      xx >>= 32;
      r <<= 16;
    }
    if (xx >= 0x10000) {
      xx >>= 16;
      r <<= 8;
    }
    if (xx >= 0x100) {
      xx >>= 8;
      r <<= 4;
    }
    if (xx >= 0x10) {
      xx >>= 4;
      r <<= 2;
    }
    if (xx >= 0x8) {
      r <<= 1;
    }

    r = (r + x / r) >> 1;
    r = (r + x / r) >> 1;
    r = (r + x / r) >> 1;
    r = (r + x / r) >> 1;
    r = (r + x / r) >> 1;
    r = (r + x / r) >> 1;
    r = (r + x / r) >> 1; // Seven iterations should be enough
    uint r1 = x / r;
    return (r < r1 ? r : r1);
  }
}

// SPDX-License-Identifier: GPL-3.0

pragma solidity =0.6.12;

// 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);
  }
}

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.5.0;

interface IOreoSwapBEP20 {
  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);
}

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.5.0;

interface IOreoSwapFactory {
  event PairCreated(address indexed token0, address indexed token1, address pair, uint);

  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(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 setFeeToSetter(address) external;
}

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.5.0;

interface IOreoSwapCallee {
  function OreoSwapCall(address sender, uint amount0, uint amount1, bytes calldata data) external;
}

// SPDX-License-Identifier: GPL-3.0

pragma solidity =0.6.12;

// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)

library OreoSwapSafeMath {
  function add(uint x, uint y) internal pure returns (uint z) {
    require((z = x + y) >= x, 'OreoSwapSafeMath::add::ds-math-add-overflow');
  }

  function sub(uint x, uint y) internal pure returns (uint z) {
    require((z = x - y) <= x, 'OreoSwapSafeMath::sub::ds-math-sub-underflow');
  }

  function mul(uint x, uint y) internal pure returns (uint z) {
    require(y == 0 || (z = x * y) / y == x, 'OreoSwapSafeMath::mul::ds-math-mul-overflow');
  }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

API
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sync","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

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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.