Sepolia Testnet

Contract

0x493796EC8b6BB7b480F38557519C6F343B988B03

Overview

ETH Balance

19.279870008251412833 ETH

More Info

Multichain Info

N/A
Transaction Hash
Method
Block
From
To
Nuke62938922024-07-12 3:51:36347 days ago1720756296IN
0x493796EC...43B988B03
0 ETH0.0084749961.84098593
Nuke62938862024-07-12 3:50:24347 days ago1720756224IN
0x493796EC...43B988B03
0 ETH0.0104421171.87578902
Nuke62938412024-07-12 3:40:00347 days ago1720755600IN
0x493796EC...43B988B03
0 ETH0.0098297767.66090566
Nuke62938322024-07-12 3:38:12347 days ago1720755492IN
0x493796EC...43B988B03
0 ETH0.0098823470.18711281
Nuke62938242024-07-12 3:36:12347 days ago1720755372IN
0x493796EC...43B988B03
0 ETH0.0086515459.55081706
Nuke62926582024-07-11 23:22:48347 days ago1720740168IN
0x493796EC...43B988B03
0 ETH0.0014549810.01505589
Nuke62901202024-07-11 14:05:36348 days ago1720706736IN
0x493796EC...43B988B03
0 ETH0.0032701122.50901835
Nuke62898242024-07-11 13:00:36348 days ago1720702836IN
0x493796EC...43B988B03
0 ETH0.12468515858.24035837
Nuke62896642024-07-11 12:24:12348 days ago1720700652IN
0x493796EC...43B988B03
0 ETH0.0020153713.87141698
Nuke62891432024-07-11 10:30:12348 days ago1720693812IN
0x493796EC...43B988B03
0 ETH0.003492324.03843989
Nuke62888942024-07-11 9:35:36348 days ago1720690536IN
0x493796EC...43B988B03
0 ETH0.00311421.77015711
Nuke62882642024-07-11 7:16:00348 days ago1720682160IN
0x493796EC...43B988B03
0 ETH0.00332422.87996841
Nuke62877932024-07-11 5:33:48348 days ago1720676028IN
0x493796EC...43B988B03
0 ETH0.0028905620.20666987
Nuke62877872024-07-11 5:32:36348 days ago1720675956IN
0x493796EC...43B988B03
0 ETH0.0028885620.19269238
Nuke62877832024-07-11 5:31:48348 days ago1720675908IN
0x493796EC...43B988B03
0 ETH0.0030762821.17340831
Nuke62877792024-07-11 5:31:00348 days ago1720675860IN
0x493796EC...43B988B03
0 ETH0.0034451923.71255963
Nuke62877762024-07-11 5:30:24348 days ago1720675824IN
0x493796EC...43B988B03
0 ETH0.0032232922.18526707
Nuke62877672024-07-11 5:28:36348 days ago1720675716IN
0x493796EC...43B988B03
0 ETH0.0031718222.1744109
Nuke62876512024-07-11 5:04:36348 days ago1720674276IN
0x493796EC...43B988B03
0 ETH0.0042680329.37598884
Nuke62875262024-07-11 4:35:48348 days ago1720672548IN
0x493796EC...43B988B03
0 ETH0.0017261413.5943764
Nuke62872852024-07-11 3:40:24348 days ago1720669224IN
0x493796EC...43B988B03
0 ETH0.001005056.91755031
Nuke62872812024-07-11 3:39:12348 days ago1720669152IN
0x493796EC...43B988B03
0 ETH0.000898556.18455055
Nuke62872762024-07-11 3:38:00348 days ago1720669080IN
0x493796EC...43B988B03
0 ETH0.000953176.56050766
Nuke62872292024-07-11 3:27:48348 days ago1720668468IN
0x493796EC...43B988B03
0 ETH0.000801495.84801477
Nuke62872242024-07-11 3:26:36348 days ago1720668396IN
0x493796EC...43B988B03
0 ETH0.000825725.68327079
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Latest 25 internal transactions (View All)

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Parent Transaction Hash Method Block
From
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Transfer63058262024-07-14 0:28:36345 days ago1720916916
0x493796EC...43B988B03
0.01768 ETH
Transfer63058262024-07-14 0:28:36345 days ago1720916916
0x493796EC...43B988B03
0.1768 ETH
Transfer62938922024-07-12 3:51:36347 days ago1720756296
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4.64531508 ETH
Transfer62938862024-07-12 3:50:24347 days ago1720756224
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6.94301618 ETH
Transfer62938412024-07-12 3:40:00347 days ago1720755600
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3.33646337 ETH
Transfer62938322024-07-12 3:38:12347 days ago1720755492
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6.51721928 ETH
Transfer62938242024-07-12 3:36:12347 days ago1720755372
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10.36413274 ETH
Transfer62934812024-07-12 2:23:12347 days ago1720750992
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0.00005 ETH
Transfer62934812024-07-12 2:23:12347 days ago1720750992
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0.0005 ETH
Transfer62931012024-07-12 0:59:36347 days ago1720745976
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0.003 ETH
Transfer62931012024-07-12 0:59:36347 days ago1720745976
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0.03 ETH
Transfer62926612024-07-11 23:23:36347 days ago1720740216
0x493796EC...43B988B03
0.01767 ETH
Transfer62926612024-07-11 23:23:36347 days ago1720740216
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0.1767 ETH
Transfer62926582024-07-11 23:22:48347 days ago1720740168
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11.68090121 ETH
Transfer62921602024-07-11 21:28:00347 days ago1720733280
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0.0005 ETH
Transfer62921602024-07-11 21:28:00347 days ago1720733280
0x493796EC...43B988B03
0.005 ETH
Transfer62921482024-07-11 21:25:36347 days ago1720733136
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0.01766 ETH
Transfer62921482024-07-11 21:25:36347 days ago1720733136
0x493796EC...43B988B03
0.1766 ETH
Transfer62913842024-07-11 18:40:00347 days ago1720723200
0x493796EC...43B988B03
0.01765 ETH
Transfer62913842024-07-11 18:40:00347 days ago1720723200
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0.1765 ETH
Transfer62913632024-07-11 18:35:24347 days ago1720722924
0x493796EC...43B988B03
0.01764 ETH
Transfer62913632024-07-11 18:35:24347 days ago1720722924
0x493796EC...43B988B03
0.1764 ETH
Transfer62910882024-07-11 17:36:36347 days ago1720719396
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0.01763 ETH
Transfer62910882024-07-11 17:36:36347 days ago1720719396
0x493796EC...43B988B03
0.1763 ETH
Transfer62910882024-07-11 17:36:36347 days ago1720719396
0x493796EC...43B988B03
0.01762 ETH
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0xf6289f2c...2ED9C548a
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
NukeFund

Compiler Version
v0.8.20+commit.a1b79de6

Optimization Enabled:
Yes with 200 runs

Other Settings:
paris EvmVersion

Contract Source Code (Solidity Standard Json-Input format)

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/security/ReentrancyGuard.sol';
import '@openzeppelin/contracts/security/Pausable.sol';
import './INukeFund.sol';
import '../TraitForgeNft/ITraitForgeNft.sol';
import '../Airdrop/IAirdrop.sol';

contract NukeFund is INukeFund, ReentrancyGuard, Ownable, Pausable {
  uint256 public constant MAX_DENOMINATOR = 100000;

  uint256 private fund;
  ITraitForgeNft public nftContract;
  IAirdrop public airdropContract;
  address payable public devAddress;
  address payable public daoAddress;
  uint256 public taxCut = 10;
  uint256 public defaultNukeFactorIncrease = 250;
  uint256 public maxAllowedClaimDivisor = 2;
  uint256 public nukeFactorMaxParam = MAX_DENOMINATOR / 2;
  uint256 public minimumDaysHeld = 3 days;
  uint256 public ageMultiplier;

  // Constructor now properly passes the initial owner address to the Ownable constructor
  constructor(
    address _traitForgeNft,
    address _airdrop,
    address payable _devAddress,
    address payable _daoAddress
  ) {
    nftContract = ITraitForgeNft(_traitForgeNft);
    airdropContract = IAirdrop(_airdrop);
    devAddress = _devAddress; // Set the developer's address
    daoAddress = _daoAddress;
  }

  // Fallback function to receive ETH and update fund balance
  receive() external payable {
    uint256 devShare = msg.value / taxCut; // Calculate developer's share (10%)
    uint256 remainingFund = msg.value - devShare; // Calculate remaining funds to add to the fund

    fund += remainingFund; // Update the fund balance

    if (!airdropContract.airdropStarted()) {
      (bool success, ) = devAddress.call{ value: devShare }('');
      require(success, 'ETH send failed');
      emit DevShareDistributed(devShare);
    } else if (!airdropContract.daoFundAllowed()) {
      (bool success, ) = payable(owner()).call{ value: devShare }('');
      require(success, 'ETH send failed');
    } else {
      (bool success, ) = daoAddress.call{ value: devShare }('');
      require(success, 'ETH send failed');
      emit DevShareDistributed(devShare);
    }

    emit FundReceived(msg.sender, msg.value); // Log the received funds
    emit FundBalanceUpdated(fund); // Update the fund balance
  }

  function setTaxCut(uint256 _taxCut) external onlyOwner {
    taxCut = _taxCut;
  }

  function setMinimumDaysHeld(uint256 value) external onlyOwner {
    minimumDaysHeld = value;
  }

  function setDefaultNukeFactorIncrease(uint256 value) external onlyOwner {
    defaultNukeFactorIncrease = value;
  }

  function setMaxAllowedClaimDivisor(uint256 value) external onlyOwner {
    maxAllowedClaimDivisor = value;
  }

  function setNukeFactorMaxParam(uint256 value) external onlyOwner {
    nukeFactorMaxParam = value;
  }

  // Allow the owner to update the reference to the ERC721 contract
  function setTraitForgeNftContract(address _traitForgeNft) external onlyOwner {
    nftContract = ITraitForgeNft(_traitForgeNft);
    emit TraitForgeNftAddressUpdated(_traitForgeNft); // Emit an event when the address is updated.
  }

  function setAirdropContract(address _airdrop) external onlyOwner {
    airdropContract = IAirdrop(_airdrop);
    emit AirdropAddressUpdated(_airdrop); // Emit an event when the address is updated.
  }

  function setDevAddress(address payable account) external onlyOwner {
    devAddress = account;
    emit DevAddressUpdated(account);
  }

  function setDaoAddress(address payable account) external onlyOwner {
    daoAddress = account;
    emit DaoAddressUpdated(account);
  }

  // View function to see the current balance of the fund
  function getFundBalance() public view returns (uint256) {
    return fund;
  }

  function setAgeMultplier(uint256 _ageMultiplier) external onlyOwner {
    ageMultiplier = _ageMultiplier;
  }

  function getAgeMultiplier() public view returns (uint256) {
    return ageMultiplier;
  }

  // Calculate the age of a token based on its creation timestamp and current time
  function calculateAge(uint256 tokenId) public view returns (uint256) {
    require(nftContract.ownerOf(tokenId) != address(0), 'Token does not exist');

    uint256 daysOld = (block.timestamp -
      nftContract.getTokenCreationTimestamp(tokenId)) /
      60 /
      60 /
      24;
    uint256 perfomanceFactor = nftContract.getTokenEntropy(tokenId) % 10;

    uint256 age = (daysOld *
      perfomanceFactor *
      MAX_DENOMINATOR *
      ageMultiplier) / 365; // add 5 digits for decimals
    return age;
  }

  // Calculate the nuke factor of a token, which affects the claimable amount from the fund
  function calculateNukeFactor(uint256 tokenId) public view returns (uint256) {
    require(
      nftContract.ownerOf(tokenId) != address(0),
      'ERC721: operator query for nonexistent token'
    );

    uint256 entropy = nftContract.getTokenEntropy(tokenId);
    uint256 adjustedAge = calculateAge(tokenId);

    uint256 initialNukeFactor = entropy / 40; // calcualte initalNukeFactor based on entropy, 5 digits

    uint256 finalNukeFactor = ((adjustedAge * defaultNukeFactorIncrease) /
      MAX_DENOMINATOR) + initialNukeFactor;

    return finalNukeFactor;
  }

  function nuke(uint256 tokenId) public whenNotPaused nonReentrant {
    require(
      nftContract.isApprovedOrOwner(msg.sender, tokenId),
      'ERC721: caller is not token owner or approved'
    );
    require(
      nftContract.getApproved(tokenId) == address(this) ||
        nftContract.isApprovedForAll(msg.sender, address(this)),
      'Contract must be approved to transfer the NFT.'
    );
    require(canTokenBeNuked(tokenId), 'Token is not mature yet');

    uint256 finalNukeFactor = calculateNukeFactor(tokenId); // finalNukeFactor has 5 digits
    uint256 potentialClaimAmount = (fund * finalNukeFactor) / MAX_DENOMINATOR; // Calculate the potential claim amount based on the finalNukeFactor
    uint256 maxAllowedClaimAmount = fund / maxAllowedClaimDivisor; // Define a maximum allowed claim amount as 50% of the current fund size

    // Directly assign the value to claimAmount based on the condition, removing the redeclaration
    uint256 claimAmount = finalNukeFactor > nukeFactorMaxParam
      ? maxAllowedClaimAmount
      : potentialClaimAmount;

    fund -= claimAmount; // Deduct the claim amount from the fund

    nftContract.burn(tokenId); // Burn the token
    (bool success, ) = payable(msg.sender).call{ value: claimAmount }('');
    require(success, 'Failed to send Ether');

    emit Nuked(msg.sender, tokenId, claimAmount); // Emit the event with the actual claim amount
    emit FundBalanceUpdated(fund); // Update the fund balance
  }

  function canTokenBeNuked(uint256 tokenId) public view returns (bool) {
    // Ensure the token exists
    require(
      nftContract.ownerOf(tokenId) != address(0),
      'ERC721: operator query for nonexistent token'
    );
    // Get the age of the token in seconds from the ERC721 contract
    uint256 tokenAgeInSeconds = nftContract.getTokenAge(tokenId);
    // Assuming tokenAgeInSeconds is the age of the token since its creation, check if it's at least 3 days old
    return tokenAgeInSeconds >= minimumDaysHeld;
  }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

interface IAirdrop {
  function setTraitToken(address _traitToken) external;

  function startAirdrop(uint256 amount) external;

  function airdropStarted() external view returns (bool);

  function allowDaoFund() external;

  function daoFundAllowed() external view returns (bool);

  function addUserAmount(address user, uint256 amount) external;

  function subUserAmount(address user, uint256 amount) external;

  function claim() external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

interface INukeFund {
  // Events for logging contract activities
  event FundBalanceUpdated(uint256 newBalance);
  event FundReceived(address indexed from, uint256 amount);
  event Nuked(
    address indexed owner,
    uint256 indexed tokenId,
    uint256 nukeAmount
  );
  event DevShareDistributed(uint256 devShare);
  event TraitForgeNftAddressUpdated(address indexed newAddress);
  event AirdropAddressUpdated(address indexed newAddress);
  event DevAddressUpdated(address indexed newAddress);
  event DaoAddressUpdated(address indexed newAddress);

  // Fallback function to receive ETH and update fund balance
  receive() external payable;

  function setTaxCut(uint256 _taxCut) external;

  function setMinimumDaysHeld(uint256 value) external;

  function setDefaultNukeFactorIncrease(uint256 value) external;

  function setMaxAllowedClaimDivisor(uint256 value) external;

  function setNukeFactorMaxParam(uint256 value) external;

  // Allow the owner to update the reference to the ERC721 contract
  function setTraitForgeNftContract(address _traitForgeNft) external;

  function setAirdropContract(address _airdrop) external;

  function setDevAddress(address payable account) external;

  function setDaoAddress(address payable account) external;

  // View function to see the current balance of the fund
  function getFundBalance() external view returns (uint256);

  // Calculate the age of a token based on its creation timestamp and current time
  function calculateAge(uint256 tokenId) external view returns (uint256);

  // Calculate the nuke factor of a token, which affects the claimable amount from the fund
  function calculateNukeFactor(uint256 tokenId) external view returns (uint256);

  function nuke(uint256 tokenId) external;

  function canTokenBeNuked(uint256 tokenId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol';

interface ITraitForgeNft is IERC721Enumerable {
  // Events for logging contract activities
  event Minted(
    address indexed minter,
    uint256 indexed itemId,
    uint256 indexed generation,
    uint256 entropyValue,
    uint256 mintPrice
  );
  event NewEntityMinted(
    address indexed owner,
    uint256 indexed tokenId,
    uint256 indexed generation,
    uint256 entropy
  );
  event GenerationIncremented(uint256 newGeneration);
  event FundsDistributedToNukeFund(address indexed to, uint256 amount);
  event NukeFundContractUpdated(address nukeFundAddress);

  function setNukeFundContract(address payable _nukeFundAddress) external;

  function setEntityForgingContract(address _entityForgingAddress) external;

  function setEntropyGenerator(address _entropyGeneratorAddress) external;

  function setAirdropContract(address _airdrop) external;

  function setStartPrice(uint256 _startPrice) external;

  function setPriceIncrement(uint256 _priceIncrement) external;

  function startAirdrop(uint256 amount) external;

  function isApprovedOrOwner(
    address spender,
    uint256 tokenId
  ) external view returns (bool);

  function burn(uint256 tokenId) external;

  function forge(
    address newOwner,
    uint256 parent1Id,
    uint256 parent2Id,
    string memory baseTokenURI
  ) external returns (uint256);

  function mintToken() external payable;

  function mintWithBudget() external payable;

  function calculateMintPrice() external view returns (uint256);

  function getTokenEntropy(uint256 tokenId) external view returns (uint256);

  function getTokenGeneration(uint256 tokenId) external view returns (uint256);

  function getEntropiesForTokens(
    uint256 forgerTokenId,
    uint256 mergerTokenId
  ) external view returns (uint256 forgerEntropy, uint256 mergerEntropy);

  function getTokenAge(uint256 tokenId) external view returns (uint256);

  function getTokenCreationTimestamp(
    uint256 tokenId
  ) external view returns (uint256);

  function isForger(uint256 tokenId) external view returns (bool);
}

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

Contract ABI

API
[{"inputs":[{"internalType":"address","name":"_traitForgeNft","type":"address"},{"internalType":"address","name":"_airdrop","type":"address"},{"internalType":"address payable","name":"_devAddress","type":"address"},{"internalType":"address payable","name":"_daoAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"AirdropAddressUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"DaoAddressUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"DevAddressUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"devShare","type":"uint256"}],"name":"DevShareDistributed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newBalance","type":"uint256"}],"name":"FundBalanceUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"FundReceived","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"nukeAmount","type":"uint256"}],"name":"Nuked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"TraitForgeNftAddressUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"MAX_DENOMINATOR","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ageMultiplier","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"airdropContract","outputs":[{"internalType":"contract IAirdrop","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"calculateAge","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"calculateNukeFactor","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"canTokenBeNuked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"daoAddress","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"defaultNukeFactorIncrease","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"devAddress","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAgeMultiplier","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getFundBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxAllowedClaimDivisor","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minimumDaysHeld","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nftContract","outputs":[{"internalType":"contract ITraitForgeNft","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"nuke","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"nukeFactorMaxParam","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_ageMultiplier","type":"uint256"}],"name":"setAgeMultplier","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_airdrop","type":"address"}],"name":"setAirdropContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"account","type":"address"}],"name":"setDaoAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"value","type":"uint256"}],"name":"setDefaultNukeFactorIncrease","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"account","type":"address"}],"name":"setDevAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"value","type":"uint256"}],"name":"setMaxAllowedClaimDivisor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"value","type":"uint256"}],"name":"setMinimumDaysHeld","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"value","type":"uint256"}],"name":"setNukeFactorMaxParam","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_taxCut","type":"uint256"}],"name":"setTaxCut","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_traitForgeNft","type":"address"}],"name":"setTraitForgeNftContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"taxCut","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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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.