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Contract

0x04A3957635aB968C4B92681D6082fC61ff080c5f
 

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Unstake194957342024-03-23 7:12:35245 days ago1711177955IN
0x04A39576...1ff080c5f
0 ETH0.0009180715.72773668
Unstake188345342023-12-21 13:27:11338 days ago1703165231IN
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0 ETH0.0022134937.91988599
Unstake188345092023-12-21 13:22:11338 days ago1703164931IN
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0 ETH0.0030010638.32878633
Unstake185781512023-11-15 15:22:35374 days ago1700061755IN
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0 ETH0.0053353641.31198996
Unstake181102762023-09-11 2:56:47439 days ago1694401007IN
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0 ETH0.00057318.95155219
Unstake181102702023-09-11 2:55:35439 days ago1694400935IN
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0 ETH0.000599548.96884609
Unstake181102602023-09-11 2:53:35439 days ago1694400815IN
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0 ETH0.000536999.19936794
Unstake181102422023-09-11 2:49:59439 days ago1694400599IN
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0 ETH0.000747669.54900446
Unstake180093162023-08-27 23:37:35454 days ago1693179455IN
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0 ETH0.0008893711.78403604
Unstake175201862023-06-20 10:01:59522 days ago1687255319IN
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0 ETH0.0008193813.38909851
Unstake175201752023-06-20 9:59:47522 days ago1687255187IN
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0 ETH0.0009328512.36014264
Unstake175135742023-06-19 11:43:23523 days ago1687175003IN
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0 ETH0.001020813.52540124
Unstake174726212023-06-13 17:41:23529 days ago1686678083IN
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0 ETH0.0013258917.5678157
Unstake174449762023-06-09 20:15:47533 days ago1686341747IN
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0 ETH0.0010799118.50027164
Unstake174449682023-06-09 20:14:11533 days ago1686341651IN
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0 ETH0.0010579917.28798392
Unstake174449582023-06-09 20:12:11533 days ago1686341531IN
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0 ETH0.0012027417.9921828
Unstake174449402023-06-09 20:08:35533 days ago1686341315IN
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0 ETH0.0015260918.81211684
Unstake174279972023-06-07 10:47:35535 days ago1686134855IN
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0 ETH0.0013999318.54883855
Unstake173602682023-05-28 21:43:23545 days ago1685310203IN
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0 ETH0.0020327526.93347653
Unstake172285262023-05-10 7:28:35563 days ago1683703715IN
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0 ETH0.0040586753.77654497
Unstake171448692023-04-28 13:17:47575 days ago1682687867IN
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0 ETH0.0031017341.09724786
Unstake171243062023-04-25 15:56:23578 days ago1682438183IN
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0 ETH0.0030369741.89046864
Unstake171242772023-04-25 15:50:35578 days ago1682437835IN
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0 ETH0.0029139643.5909807
Unstake171242732023-04-25 15:49:47578 days ago1682437787IN
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0 ETH0.0026345541.15006177
Unstake171242622023-04-25 15:47:35578 days ago1682437655IN
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0 ETH0.0028355746.34353164
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194957342024-03-23 7:12:35245 days ago1711177955
0x04A39576...1ff080c5f
0 ETH
188345342023-12-21 13:27:11338 days ago1703165231
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0 ETH
188345092023-12-21 13:22:11338 days ago1703164931
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0 ETH
185781512023-11-15 15:22:35374 days ago1700061755
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0 ETH
181102762023-09-11 2:56:47439 days ago1694401007
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181102702023-09-11 2:55:35439 days ago1694400935
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181102602023-09-11 2:53:35439 days ago1694400815
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181102422023-09-11 2:49:59439 days ago1694400599
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180093162023-08-27 23:37:35454 days ago1693179455
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0 ETH
175201862023-06-20 10:01:59522 days ago1687255319
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175201752023-06-20 9:59:47522 days ago1687255187
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175135742023-06-19 11:43:23523 days ago1687175003
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174726212023-06-13 17:41:23529 days ago1686678083
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174449762023-06-09 20:15:47533 days ago1686341747
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174449682023-06-09 20:14:11533 days ago1686341651
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174449582023-06-09 20:12:11533 days ago1686341531
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174449402023-06-09 20:08:35533 days ago1686341315
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174279972023-06-07 10:47:35535 days ago1686134855
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173602682023-05-28 21:43:23545 days ago1685310203
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172285262023-05-10 7:28:35563 days ago1683703715
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171448692023-04-28 13:17:47575 days ago1682687867
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171243062023-04-25 15:56:23578 days ago1682438183
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171242772023-04-25 15:50:35578 days ago1682437835
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171242732023-04-25 15:49:47578 days ago1682437787
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171242622023-04-25 15:47:35578 days ago1682437655
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Contract Source Code Verified (Exact Match)

Contract Name:
BapesClanStaker

Compiler Version
v0.8.0+commit.c7dfd78e

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion
File 1 of 6 : BapesClanStaker.sol
/*** Smart Contract By
 *                 _                 _
 *     ___   __ _ | |_  __ _   __ _ (_)
 *    / __| / _` || __|/ _` | / _` || |
 *    \__ \| (_| || |_| (_| || (_| || |
 *    |___/ \__,_| \__|\__,_| \__, ||_|
 *                               |_|
 */

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract BapesClanStaker is Ownable {
  struct StakedBape {
    address owner;
    uint256 tokenId;
    uint256 timestamp;
  }

  IERC721 private bapesClanG1;

  mapping(address => StakedBape[]) private stakes;

  bool isStakingPaused = true;

  constructor() {
    bapesClanG1 = IERC721(0x8Ce66fF0865570D1ff0BB0098Fa41B4dc61E02e6);
  }

  function onERC721Received(
    address,
    address,
    uint256,
    bytes calldata
  ) external returns (bytes4) {
    return bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"));
  }

  function stake(uint256 _tokenId) external {
    require(!isStakingPaused, "Staking is paused.");

    bapesClanG1.safeTransferFrom(msg.sender, address(this), _tokenId);

    stakes[msg.sender].push(StakedBape(msg.sender, _tokenId, block.timestamp));
  }

  function unstake(uint256 _tokenId) external {
    uint256 senderStakes = stakes[msg.sender].length;

    require(senderStakes > 0, "Address has no stakes.");

    for (uint256 i = 0; i < senderStakes; i++) {
      if (stakes[msg.sender][i].tokenId == _tokenId && stakes[msg.sender][i].timestamp != 0) {
        uint256 elapsedMins = (block.timestamp - stakes[msg.sender][i].timestamp) / 60;
        uint256 elapsedDays = elapsedMins / 1440;

        require(elapsedDays >= 90, "Can not unstake before 90 days.");

        bapesClanG1.safeTransferFrom(address(this), msg.sender, _tokenId);

        stakes[msg.sender][i].timestamp = 0;

        break;
      }

      if (i == senderStakes - 1) {
        revert("Provided token id not staked.");
      }
    }
  }

  function getStakes(address _address) external view returns (StakedBape[] memory) {
    uint256 addressStakes = stakes[_address].length;

    require(addressStakes > 0, "Address has no stakes.");

    StakedBape[] memory res = new StakedBape[](addressStakes);

    for (uint256 i = 0; i < addressStakes; i++) {
      if (stakes[_address][i].timestamp != 0) {
        res[i] = StakedBape(stakes[_address][i].owner, stakes[_address][i].tokenId, stakes[_address][i].timestamp);
      }
    }

    return res;
  }

  function pauseStaking(bool _state) external onlyOwner {
    isStakingPaused = _state;
  }
}

File 2 of 6 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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`, 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 be 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: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * 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 Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @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 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);

    /**
     * @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;
}

File 3 of 6 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

File 4 of 6 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing 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);
    }
}

File 5 of 6 : IERC165.sol
// 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);
}

File 6 of 6 : Context.sol
// 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;
    }
}

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

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"getStakes","outputs":[{"components":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"timestamp","type":"uint256"}],"internalType":"struct BapesClanStaker.StakedBape[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC721Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"_state","type":"bool"}],"name":"pauseStaking","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"stake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"unstake","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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