ETH Price: $3,087.85 (+0.42%)
Gas: 19 Gwei

Contract

0x3Fb1FDc9d48Fb08C20ab415A191E0FB499fea068
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

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Transaction Hash
Method
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Value
Set Authorized C...172656762023-05-15 14:09:23336 days ago1684159763IN
0x3Fb1FDc9...499fea068
0 ETH0.0026988858.46174096
Set Authorized C...163592102023-01-08 2:53:11463 days ago1673146391IN
0x3Fb1FDc9...499fea068
0 ETH0.000329413.57515621
Set Authorized C...163584362023-01-08 0:17:59463 days ago1673137079IN
0x3Fb1FDc9...499fea068
0 ETH0.0005727712.40721908
Set Authorized C...160285872022-11-22 22:41:35509 days ago1669156895IN
0x3Fb1FDc9...499fea068
0 ETH0.0004820110.44112692
0x60806040160285472022-11-22 22:33:35509 days ago1669156415IN
 Create: ArtforaRedemptionsStorage
0 ETH0.0063063113.00956961

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Contract Source Code Verified (Exact Match)

Contract Name:
ArtforaRedemptionsStorage

Compiler Version
v0.8.16+commit.07a7930e

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license
/**
 *Submitted for verification at Etherscan.io on 2022-11-22
*/

// 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;
    }
}

// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

/**
 * @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 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);
    }
}

pragma solidity ^0.8.0;

contract ArtforaRedemptionsStorage is Ownable {
    // public variables
    mapping (address => mapping (uint256 => bool)) public redemptions;

    // private variables
    mapping (address => bool) private authorizedCallers;

    // modifiers
    modifier onlyAuthorizedCaller() {
        require(authorizedCallers[msg.sender], "Caller not authorized");
        _;
    } 

    // public / external functions
    function isAuthorizedCaller(address _caller) external view returns (bool) {
        return authorizedCallers[_caller];
    }

    function isRedeemed(address _contractAddress, uint256 _tokenId) external view returns (bool) {
        return redemptions[_contractAddress][_tokenId];
    }

    // authorized only 
    function redeem(address _contractAddress, uint256 _tokenId) external onlyAuthorizedCaller {
        redemptions[_contractAddress][_tokenId] = true;
    }

    // owner only
    function setAuthorizedCaller(address _caller) external onlyOwner {
        authorizedCallers[_caller] = !authorizedCallers[_caller];
    }

    function setRedemptions(address[] calldata _addresses, uint256[] calldata _tokenIds, bool[] calldata _states) external onlyOwner {
        require(_addresses.length == _tokenIds.length && _tokenIds.length == _states.length, "Invalid input");
        for (uint256 i; i < _addresses.length; i++) {
            redemptions[_addresses[i]][_tokenIds[i]] = _states[i];
        }
    }

    function withdraw() external onlyOwner {
        (bool success, ) = msg.sender.call{value: address(this).balance }("");
        require(success, "Transfer failed");
    }
}

Contract Security Audit

Contract ABI

[{"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":"_caller","type":"address"}],"name":"isAuthorizedCaller","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_contractAddress","type":"address"},{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"isRedeemed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_contractAddress","type":"address"},{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"redeem","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"redemptions","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_caller","type":"address"}],"name":"setAuthorizedCaller","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_addresses","type":"address[]"},{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"},{"internalType":"bool[]","name":"_states","type":"bool[]"}],"name":"setRedemptions","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Swarm Source

ipfs://473d3f358cde7e10b269d9eab6f9243fe18f22e768c1a9c0cf6575487431ff23

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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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.