Sepolia Testnet

Contract

0xa3e7317E591D5A0F1c605be1b3aC4D2ae56104d6
Transaction Hash
Method
Block
From
To
Submit Level Ins...83723822025-05-21 3:56:3636 mins ago1747799796IN
0xa3e7317E...ae56104d6
0 ETH0.00063352.50002751
Submit Level Ins...83722082025-05-21 3:21:241 hr ago1747797684IN
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0 ETH0.000266982.50000868
Create Level Ins...83721932025-05-21 3:18:241 hr ago1747797504IN
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0 ETH0.006330242.50000698
Submit Level Ins...83721472025-05-21 3:09:121 hr ago1747796952IN
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0 ETH0.000464252.50000294
Submit Level Ins...83721142025-05-21 3:02:361 hr ago1747796556IN
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0 ETH0.000463742.50000116
Submit Level Ins...83720592025-05-21 2:51:241 hr ago1747795884IN
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0 ETH0.000463672.50000079
Create Level Ins...83720442025-05-21 2:48:241 hr ago1747795704IN
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0 ETH0.000792482.5000005
Submit Level Ins...83720142025-05-21 2:42:241 hr ago1747795344IN
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0 ETH0.000463412.50000051
Create Level Ins...83720122025-05-21 2:42:001 hr ago1747795320IN
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0 ETH0.000759632.50000047
Create Level Ins...83720102025-05-21 2:41:361 hr ago1747795296IN
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0 ETH0.000966652.50000045
Submit Level Ins...83720002025-05-21 2:39:361 hr ago1747795176IN
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0 ETH0.000464252.50000043
Create Level Ins...83719962025-05-21 2:38:481 hr ago1747795128IN
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0.001 ETH0.002743612.50000038
Create Level Ins...83719562025-05-21 2:30:482 hrs ago1747794648IN
0xa3e7317E...ae56104d6
0 ETH0.000920482.50000026
Create Level Ins...83719102025-05-21 2:21:362 hrs ago1747794096IN
0xa3e7317E...ae56104d6
0 ETH0.000920482.50000016
Submit Level Ins...83718462025-05-21 2:08:482 hrs ago1747793328IN
0xa3e7317E...ae56104d6
0 ETH0.000332062.50000012
Submit Level Ins...83717932025-05-21 1:58:122 hrs ago1747792692IN
0xa3e7317E...ae56104d6
0 ETH0.000243472.50000007
Submit Level Ins...83717802025-05-21 1:55:362 hrs ago1747792536IN
0xa3e7317E...ae56104d6
0 ETH0.000251052.50000009
Submit Level Ins...83717702025-05-21 1:53:362 hrs ago1747792416IN
0xa3e7317E...ae56104d6
0 ETH0.000286222.50000007
Create Level Ins...83717142025-05-21 1:42:242 hrs ago1747791744IN
0xa3e7317E...ae56104d6
0.001 ETH0.00077582.50000003
Create Level Ins...83716072025-05-21 1:19:363 hrs ago1747790376IN
0xa3e7317E...ae56104d6
0 ETH0.001061672.50000002
Submit Level Ins...83715842025-05-21 1:15:003 hrs ago1747790100IN
0xa3e7317E...ae56104d6
0 ETH0.000591262.50000004
Submit Level Ins...83715762025-05-21 1:13:243 hrs ago1747790004IN
0xa3e7317E...ae56104d6
0 ETH0.000269692.50000004
Submit Level Ins...83715692025-05-21 1:12:003 hrs ago1747789920IN
0xa3e7317E...ae56104d6
0 ETH0.000269692.50000004
Create Level Ins...83715682025-05-21 1:11:483 hrs ago1747789908IN
0xa3e7317E...ae56104d6
0 ETH0.00187852.50000004
Create Level Ins...83715442025-05-21 1:07:003 hrs ago1747789620IN
0xa3e7317E...ae56104d6
0 ETH0.003027022.50000006
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Latest 25 internal transactions (View All)

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Create Instance83719962025-05-21 2:38:481 hr ago1747795128
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Create Instance83717142025-05-21 1:42:242 hrs ago1747791744
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Create Instance83712292025-05-21 0:04:004 hrs ago1747785840
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Create Instance83707832025-05-20 22:34:365 hrs ago1747780476
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Create Instance83704552025-05-20 21:28:487 hrs ago1747776528
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Create Instance83703722025-05-20 21:12:007 hrs ago1747775520
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Create Instance83692862025-05-20 17:33:1210 hrs ago1747762392
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Create Instance83692472025-05-20 17:25:2411 hrs ago1747761924
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Create Instance83691272025-05-20 17:01:2411 hrs ago1747760484
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Create Instance83691002025-05-20 16:56:0011 hrs ago1747760160
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Create Instance83684042025-05-20 14:36:0013 hrs ago1747751760
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Create Instance83683552025-05-20 14:26:0014 hrs ago1747751160
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Create Instance83683442025-05-20 14:23:3614 hrs ago1747751016
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Create Instance83683112025-05-20 14:17:0014 hrs ago1747750620
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Create Instance83682762025-05-20 14:09:3614 hrs ago1747750176
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Create Instance83677112025-05-20 12:15:2416 hrs ago1747743324
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Create Instance83674642025-05-20 11:25:3617 hrs ago1747740336
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Create Instance83674252025-05-20 11:17:4817 hrs ago1747739868
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Create Instance83673122025-05-20 10:55:0017 hrs ago1747738500
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Create Instance83672812025-05-20 10:48:4817 hrs ago1747738128
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Create Instance83668212025-05-20 9:16:1219 hrs ago1747732572
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Create Instance83662032025-05-20 7:12:3621 hrs ago1747725156
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Create Instance83661212025-05-20 6:56:0021 hrs ago1747724160
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Create Instance83644922025-05-20 1:29:1227 hrs ago1747704552
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Create Instance83644502025-05-20 1:20:4827 hrs ago1747704048
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0.001 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
Ethernaut

Compiler Version
v0.8.12+commit.f00d7308

Optimization Enabled:
Yes with 1000 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2022-11-17
*/

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;


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




// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)



/**
 * @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;
    }
}


/**
 * @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);
    }
}


abstract contract Level is Ownable {
  function createInstance(address _player) virtual public payable returns (address);
  function validateInstance(address payable _instance, address _player) virtual public returns (bool);
}

interface IStatistics {
    function saveNewLevel(address level) external;

    function createNewInstance(
        address instance,
        address level,
        address player
    ) external;

    function submitFailure(
        address instance,
        address level,
        address player
    ) external;

    function submitSuccess(
        address instance,
        address level,
        address player
    ) external;
}

contract Ethernaut is Ownable {
    IStatistics public statistics;

    // ----------------------------------
    // Owner interaction
    // ----------------------------------

    mapping(address => bool) public registeredLevels;

    // Only registered levels will be allowed to generate and validate level instances.
    function registerLevel(Level _level) public onlyOwner {
        registeredLevels[address(_level)] = true;
        statistics.saveNewLevel(address(_level));
    }

    function setStatistics(address _statProxy) external onlyOwner {
        statistics = IStatistics(_statProxy);
    }

    // ----------------------------------
    // Get/submit level instances
    // ----------------------------------

    struct EmittedInstanceData {
        address player;
        Level level;
        bool completed;
    }

    mapping(address => EmittedInstanceData) public emittedInstances;

    event LevelInstanceCreatedLog(
        address indexed player,
        address indexed instance,
        address indexed level
    );
    event LevelCompletedLog(
        address indexed player,
        address indexed instance,
        address indexed level
    );

    function createLevelInstance(Level _level) public payable {
        // Ensure level is registered.
        require(registeredLevels[address(_level)], "This level doesn't exists");

        // Get level factory to create an instance.
        address instance = _level.createInstance{value: msg.value}(msg.sender);

        // Store emitted instance relationship with player and level.
        emittedInstances[instance] = EmittedInstanceData(
            msg.sender,
            _level,
            false
        );

        statistics.createNewInstance(instance, address(_level), msg.sender);

        // Retrieve created instance via logs.
        emit LevelInstanceCreatedLog(msg.sender, instance, address(_level));
    }

    function submitLevelInstance(address payable _instance) public {
        // Get player and level.
        EmittedInstanceData storage data = emittedInstances[_instance];
        require(
            data.player == msg.sender,
            "This instance doesn't belong to the current user"
        ); // instance was emitted for this player
        require(data.completed == false, "Level has been completed already"); // not already submitted

        // Have the level check the instance.
        if (data.level.validateInstance(_instance, msg.sender)) {
            // Register instance as completed.
            data.completed = true;

            statistics.submitSuccess(
                _instance,
                address(data.level),
                msg.sender
            );
            // Notify success via logs.
            emit LevelCompletedLog(msg.sender, _instance, address(data.level));
        } else {
            statistics.submitFailure(
                _instance,
                address(data.level),
                msg.sender
            );
        }
    }
}

Contract ABI

API
[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"player","type":"address"},{"indexed":true,"internalType":"address","name":"instance","type":"address"},{"indexed":true,"internalType":"address","name":"level","type":"address"}],"name":"LevelCompletedLog","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"player","type":"address"},{"indexed":true,"internalType":"address","name":"instance","type":"address"},{"indexed":true,"internalType":"address","name":"level","type":"address"}],"name":"LevelInstanceCreatedLog","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"},{"inputs":[{"internalType":"contract Level","name":"_level","type":"address"}],"name":"createLevelInstance","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"emittedInstances","outputs":[{"internalType":"address","name":"player","type":"address"},{"internalType":"contract Level","name":"level","type":"address"},{"internalType":"bool","name":"completed","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract Level","name":"_level","type":"address"}],"name":"registerLevel","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"registeredLevels","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_statProxy","type":"address"}],"name":"setStatistics","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"statistics","outputs":[{"internalType":"contract IStatistics","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address payable","name":"_instance","type":"address"}],"name":"submitLevelInstance","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Swarm Source

ipfs://b6cdd57c7c4ed65e880fa59c764242d6a66b9aca01b6e2243fcd8f13636158ae

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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Validator Index Block Amount
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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.