Contract 0xa4618c0E9A37eb7580F458EC6Aa56183a1b85881

Contract Overview

Balance:
0 Ether
Txn Hash
Method
Block
From
To
Value
0x7635e5317f163d21fd8db4d48aec1ff545f3faa09cc8b8dcf9841044bc172b35Generate Attesta...113732962022-09-13 13:09:3617 days 10 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00101288 2.425
0xef9ce15a259ee4981762597d3d6b7958eb55728c0619ff1630423a898a53d244Generate Attesta...113732902022-09-13 13:08:0517 days 10 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062651 1.5
0x2eb7219c35f11eeb4e5edc7d8c97b89098b6f6ce0b7dcc9d40dbb3c66967fc84Generate Attesta...113676762022-09-12 13:42:2418 days 9 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062654 1.50000001
0x4c4ef750d102b4336f0983ea3a0a9ccffe4ddec0afaa20c49db121f9a255b105Generate Attesta...113097082022-09-02 10:15:5628 days 12 hrs ago0xfd247ff5380d7da60e9018d1d29d529664839af2 IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062654 1.5
0x8c133b526df00d0b5c97b3070a7edae59f8fb2d7e819c87ecfc0af9473f44b05Generate Attesta...113095892022-09-02 9:46:0528 days 13 hrs ago0xfd247ff5380d7da60e9018d1d29d529664839af2 IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00071186 1.5
0x0cfcdd0e484545c2f430e68897827c62fece0639548582aaca39fb7dd15ae5afGenerate Attesta...113094492022-09-02 9:09:5828 days 14 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062658 1.50000001
0x6dc3a65e8b793126a784e62c8000f6dd936acd46b7db4cec834bcfe0c9990184Generate Attesta...113094382022-09-02 9:07:1328 days 14 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062658 1.50000001
0xf262ff4d2187a3fcd9a05bffe62487cb5ae74e8b3204a00645d3de29e015bd99Generate Attesta...113059372022-09-01 18:29:3929 days 4 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062656 1.5
0x4a7c980e3d8cff5933ee0ba86e6860e324996c0a50e5119dba8facf3cc3ce8c2Generate Attesta...113055872022-09-01 16:58:5029 days 6 hrs ago0xf61cabba1e6fc166a66bca0fcaa83762edb6d4bd IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062658 1.5
0x3629d15f539a1d12f3ecc741d9c99a5bcdd1d63efffbff624671974200bfdf0aGenerate Attesta...113055372022-09-01 16:46:1929 days 6 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062658 1.5
0x115b24c06c2d3e0770e984dc449b84a998a681fcf3ff099b97a9e0fb68e7f056Generate Attesta...113054622022-09-01 16:27:3229 days 6 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062658 1.5
0xd5624a48b60b7e22fc2e138e9a877eb998ea7030e3be0ed897a0c4f16feeb02eGenerate Attesta...113053782022-09-01 16:06:3029 days 7 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062658 1.5
0xc0d29f424ffdfdcce885f6f477f88674a6fe59aece639e05ac9e641015efbe63Generate Attesta...113053682022-09-01 16:03:5929 days 7 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062654 1.5
0x19796370aafdc31ea0aaf1f674080bfcc164f199701d90a80d796c6fa658b0aeGenerate Attesta...113038372022-09-01 9:40:3929 days 13 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00062658 1.5
0x1d280ef64ae5b66dbc0b796e83e969d209098f4fccc9b85bd4dc99193f528bb8Generate Attesta...113038282022-09-01 9:38:2429 days 13 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00073194 1.5423
0x38eefab0a785cbbadae35e6a2d3271c5731b854f01859ba172547914078d900eGenerate Attesta...112998612022-08-31 17:04:4430 days 6 hrs ago0xf61cabba1e6fc166a66bca0fcaa83762edb6d4bd IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00071186 1.50000001
0x36611c50e334b8306a4cd874cc3a38e567e6b9c4f3b8871b446081dc5244a183Generate Attesta...112997942022-08-31 16:47:5730 days 6 hrs ago0x74184bff3cf29e82e4d8cb3b7f1d5a89fdd0eb15 IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00071183 1.5
0xc91d1ac51031e6059677e24cc7dbace66bcd1571e11b837558285db49711ede3Generate Attesta...112997882022-08-31 16:46:2730 days 6 hrs ago0x74184bff3cf29e82e4d8cb3b7f1d5a89fdd0eb15 IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00006948 1.5
0x6244f60e296dd4fb484b014c2106bacfba3a4300553af3d336ce40478d6ed88eGenerate Attesta...112997622022-08-31 16:39:5730 days 6 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00006948 1.50000001
0x901e46f5c33151035181a4e230ceab093b731bbffe7760984f620b8a8707a725Generate Attesta...112997172022-08-31 16:28:4230 days 6 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00006946 1.5
0xe2ca2940138479fdaf3e3254ed285f2f36d9653cf23da27c30848c8cf8f7e9b6Generate Attesta...112997032022-08-31 16:25:1230 days 6 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00011227 2.42500001
0x15f646044abc8dd20c80f9c8ef1467fb66c74edbe5c9a5b2cbedbd2af516f1a0Generate Attesta...112996942022-08-31 16:22:5730 days 6 hrs ago0xf61cabba1e6fc166a66bca0fcaa83762edb6d4bd IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00006948 1.5
0xba850a82a7da2dd7115262b8ae50d7357698015c49b4111f5ae5e8bbbb6afbe7Generate Attesta...112996842022-08-31 16:20:2730 days 6 hrs ago0x74184bff3cf29e82e4d8cb3b7f1d5a89fdd0eb15 IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00006948 1.50000001
0x26bef31a391cf1c632c6f6d00c6ce4a6944e0cf3bd5c8b1dcb69d00949ad479eGenerate Attesta...112996572022-08-31 16:13:4030 days 6 hrs ago0xb01ee322c4f028b8a6bfcd2a5d48107dc5bc99ec IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00006946 1.50000001
0x604b1be70f6d4953a146629add06710169a12481bb3a7988b5fce7527b53ac37Generate Attesta...112994102022-08-31 15:11:4730 days 8 hrs ago0xfe2b479f71e2ce9147020611a821f8d64e4bc675 IN  0xa4618c0e9a37eb7580f458ec6aa56183a1b858810 Ether0.00012268 2.65000001
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Latest 25 internal transaction
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0x7635e5317f163d21fd8db4d48aec1ff545f3faa09cc8b8dcf9841044bc172b35113732962022-09-13 13:09:3617 days 10 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x91a6fb638ff4049d1f1de42c6cf58e462b63babc0 Ether
0x7635e5317f163d21fd8db4d48aec1ff545f3faa09cc8b8dcf9841044bc172b35113732962022-09-13 13:09:3617 days 10 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x43043e3a1ebd6966f133ae67d1822f99874a191d0 Ether
0x7635e5317f163d21fd8db4d48aec1ff545f3faa09cc8b8dcf9841044bc172b35113732962022-09-13 13:09:3617 days 10 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x9a64902af7bf0499074bbeeb9a1a9a9c8003d0f90 Ether
0xef9ce15a259ee4981762597d3d6b7958eb55728c0619ff1630423a898a53d244113732902022-09-13 13:08:0517 days 10 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x91a6fb638ff4049d1f1de42c6cf58e462b63babc0 Ether
0xef9ce15a259ee4981762597d3d6b7958eb55728c0619ff1630423a898a53d244113732902022-09-13 13:08:0517 days 10 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x43043e3a1ebd6966f133ae67d1822f99874a191d0 Ether
0xef9ce15a259ee4981762597d3d6b7958eb55728c0619ff1630423a898a53d244113732902022-09-13 13:08:0517 days 10 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x9a64902af7bf0499074bbeeb9a1a9a9c8003d0f90 Ether
0x2eb7219c35f11eeb4e5edc7d8c97b89098b6f6ce0b7dcc9d40dbb3c66967fc84113676762022-09-12 13:42:2418 days 9 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x91a6fb638ff4049d1f1de42c6cf58e462b63babc0 Ether
0x2eb7219c35f11eeb4e5edc7d8c97b89098b6f6ce0b7dcc9d40dbb3c66967fc84113676762022-09-12 13:42:2418 days 9 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x43043e3a1ebd6966f133ae67d1822f99874a191d0 Ether
0x2eb7219c35f11eeb4e5edc7d8c97b89098b6f6ce0b7dcc9d40dbb3c66967fc84113676762022-09-12 13:42:2418 days 9 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x9a64902af7bf0499074bbeeb9a1a9a9c8003d0f90 Ether
0x4c4ef750d102b4336f0983ea3a0a9ccffe4ddec0afaa20c49db121f9a255b105113097082022-09-02 10:15:5628 days 12 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x91a6fb638ff4049d1f1de42c6cf58e462b63babc0 Ether
0x4c4ef750d102b4336f0983ea3a0a9ccffe4ddec0afaa20c49db121f9a255b105113097082022-09-02 10:15:5628 days 12 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x43043e3a1ebd6966f133ae67d1822f99874a191d0 Ether
0x4c4ef750d102b4336f0983ea3a0a9ccffe4ddec0afaa20c49db121f9a255b105113097082022-09-02 10:15:5628 days 12 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x9a64902af7bf0499074bbeeb9a1a9a9c8003d0f90 Ether
0x8c133b526df00d0b5c97b3070a7edae59f8fb2d7e819c87ecfc0af9473f44b05113095892022-09-02 9:46:0528 days 13 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x91a6fb638ff4049d1f1de42c6cf58e462b63babc0 Ether
0x8c133b526df00d0b5c97b3070a7edae59f8fb2d7e819c87ecfc0af9473f44b05113095892022-09-02 9:46:0528 days 13 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x43043e3a1ebd6966f133ae67d1822f99874a191d0 Ether
0x8c133b526df00d0b5c97b3070a7edae59f8fb2d7e819c87ecfc0af9473f44b05113095892022-09-02 9:46:0528 days 13 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x9a64902af7bf0499074bbeeb9a1a9a9c8003d0f90 Ether
0x0cfcdd0e484545c2f430e68897827c62fece0639548582aaca39fb7dd15ae5af113094492022-09-02 9:09:5828 days 14 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x91a6fb638ff4049d1f1de42c6cf58e462b63babc0 Ether
0x0cfcdd0e484545c2f430e68897827c62fece0639548582aaca39fb7dd15ae5af113094492022-09-02 9:09:5828 days 14 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x43043e3a1ebd6966f133ae67d1822f99874a191d0 Ether
0x0cfcdd0e484545c2f430e68897827c62fece0639548582aaca39fb7dd15ae5af113094492022-09-02 9:09:5828 days 14 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x9a64902af7bf0499074bbeeb9a1a9a9c8003d0f90 Ether
0x6dc3a65e8b793126a784e62c8000f6dd936acd46b7db4cec834bcfe0c9990184113094382022-09-02 9:07:1328 days 14 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x91a6fb638ff4049d1f1de42c6cf58e462b63babc0 Ether
0x6dc3a65e8b793126a784e62c8000f6dd936acd46b7db4cec834bcfe0c9990184113094382022-09-02 9:07:1328 days 14 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x43043e3a1ebd6966f133ae67d1822f99874a191d0 Ether
0x6dc3a65e8b793126a784e62c8000f6dd936acd46b7db4cec834bcfe0c9990184113094382022-09-02 9:07:1328 days 14 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x9a64902af7bf0499074bbeeb9a1a9a9c8003d0f90 Ether
0xf262ff4d2187a3fcd9a05bffe62487cb5ae74e8b3204a00645d3de29e015bd99113059372022-09-01 18:29:3929 days 4 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x91a6fb638ff4049d1f1de42c6cf58e462b63babc0 Ether
0xf262ff4d2187a3fcd9a05bffe62487cb5ae74e8b3204a00645d3de29e015bd99113059372022-09-01 18:29:3929 days 4 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x43043e3a1ebd6966f133ae67d1822f99874a191d0 Ether
0xf262ff4d2187a3fcd9a05bffe62487cb5ae74e8b3204a00645d3de29e015bd99113059372022-09-01 18:29:3929 days 4 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x9a64902af7bf0499074bbeeb9a1a9a9c8003d0f90 Ether
0x4a7c980e3d8cff5933ee0ba86e6860e324996c0a50e5119dba8facf3cc3ce8c2113055872022-09-01 16:58:5029 days 6 hrs ago 0xa4618c0e9a37eb7580f458ec6aa56183a1b85881 0x91a6fb638ff4049d1f1de42c6cf58e462b63babc0 Ether
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xf45D6A8C7B982C3A96FDB3F5e781531E7E61139A

Contract Name:
TransparentUpgradeableProxy

Compiler Version
v0.8.14+commit.80d49f37

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license
File 1 of 8 : draft-IERC1822.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)

pragma solidity ^0.8.0;

/**
 * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822Proxiable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}

File 2 of 8 : ERC1967Proxy.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/ERC1967/ERC1967Proxy.sol)

pragma solidity ^0.8.0;

import "../Proxy.sol";
import "./ERC1967Upgrade.sol";

/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 */
contract ERC1967Proxy is Proxy, ERC1967Upgrade {
    /**
     * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
     *
     * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
     * function call, and allows initializating the storage of the proxy like a Solidity constructor.
     */
    constructor(address _logic, bytes memory _data) payable {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        _upgradeToAndCall(_logic, _data, false);
    }

    /**
     * @dev Returns the current implementation address.
     */
    function _implementation() internal view virtual override returns (address impl) {
        return ERC1967Upgrade._getImplementation();
    }
}

File 3 of 8 : ERC1967Upgrade.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol)

pragma solidity ^0.8.2;

import "../beacon/IBeacon.sol";
import "../../interfaces/draft-IERC1822.sol";
import "../../utils/Address.sol";
import "../../utils/StorageSlot.sol";

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 *
 * _Available since v4.1._
 *
 * @custom:oz-upgrades-unsafe-allow delegatecall
 */
abstract contract ERC1967Upgrade {
    // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
    bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Returns the current implementation address.
     */
    function _getImplementation() internal view returns (address) {
        return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
        StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Perform implementation upgrade
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Perform implementation upgrade with additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCall(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        _upgradeTo(newImplementation);
        if (data.length > 0 || forceCall) {
            Address.functionDelegateCall(newImplementation, data);
        }
    }

    /**
     * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCallUUPS(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        // Upgrades from old implementations will perform a rollback test. This test requires the new
        // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
        // this special case will break upgrade paths from old UUPS implementation to new ones.
        if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) {
            _setImplementation(newImplementation);
        } else {
            try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
                require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
            } catch {
                revert("ERC1967Upgrade: new implementation is not UUPS");
            }
            _upgradeToAndCall(newImplementation, data, forceCall);
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Returns the current admin.
     */
    function _getAdmin() internal view returns (address) {
        return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        require(newAdmin != address(0), "ERC1967: new admin is the zero address");
        StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {AdminChanged} event.
     */
    function _changeAdmin(address newAdmin) internal {
        emit AdminChanged(_getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
     */
    bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Emitted when the beacon is upgraded.
     */
    event BeaconUpgraded(address indexed beacon);

    /**
     * @dev Returns the current beacon.
     */
    function _getBeacon() internal view returns (address) {
        return StorageSlot.getAddressSlot(_BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract");
        require(
            Address.isContract(IBeacon(newBeacon).implementation()),
            "ERC1967: beacon implementation is not a contract"
        );
        StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
    }

    /**
     * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
     * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
     *
     * Emits a {BeaconUpgraded} event.
     */
    function _upgradeBeaconToAndCall(
        address newBeacon,
        bytes memory data,
        bool forceCall
    ) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);
        if (data.length > 0 || forceCall) {
            Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
        }
    }
}

File 4 of 8 : Proxy.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/Proxy.sol)

pragma solidity ^0.8.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    /**
     * @dev This is a virtual function that should be overriden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal view virtual returns (address);

    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     *
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _fallback() internal virtual {
        _beforeFallback();
        _delegate(_implementation());
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback() external payable virtual {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive() external payable virtual {
        _fallback();
    }

    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     *
     * If overriden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {}
}

File 5 of 8 : IBeacon.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)

pragma solidity ^0.8.0;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

File 6 of 8 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 7 of 8 : StorageSlot.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/StorageSlot.sol)

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        assembly {
            r.slot := slot
        }
    }
}

File 8 of 8 : TransparentUpgradeableProxy.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/transparent/TransparentUpgradeableProxy.sol)
// Note: we just copied so that we can see the contract used
pragma solidity ^0.8.14;

import {ERC1967Proxy} from '@openzeppelin/contracts/proxy/ERC1967/ERC1967Proxy.sol';

/**
 * @dev This contract implements a proxy that is upgradeable by an admin.
 *
 * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
 * clashing], which can potentially be used in an attack, this contract uses the
 * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
 * things that go hand in hand:
 *
 * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
 * that call matches one of the admin functions exposed by the proxy itself.
 * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
 * implementation. If the admin tries to call a function on the implementation it will fail with an error that says
 * "admin cannot fallback to proxy target".
 *
 * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
 * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
 * to sudden errors when trying to call a function from the proxy implementation.
 *
 * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,
 * you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy.
 */
contract TransparentUpgradeableProxy is ERC1967Proxy {
  /**
   * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and
   * optionally initialized with `_data` as explained in {ERC1967Proxy-constructor}.
   */
  constructor(
    address _logic,
    address admin_,
    bytes memory _data
  ) payable ERC1967Proxy(_logic, _data) {
    assert(_ADMIN_SLOT == bytes32(uint256(keccak256('eip1967.proxy.admin')) - 1));
    _changeAdmin(admin_);
  }

  /**
   * @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin.
   */
  modifier ifAdmin() {
    if (msg.sender == _getAdmin()) {
      _;
    } else {
      _fallback();
    }
  }

  /**
   * @dev Returns the current admin.
   *
   * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyAdmin}.
   *
   * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
   * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
   * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
   */
  function admin() external ifAdmin returns (address admin_) {
    admin_ = _getAdmin();
  }

  /**
   * @dev Returns the current implementation.
   *
   * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyImplementation}.
   *
   * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
   * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
   * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
   */
  function implementation() external ifAdmin returns (address implementation_) {
    implementation_ = _implementation();
  }

  /**
   * @dev Changes the admin of the proxy.
   *
   * Emits an {AdminChanged} event.
   *
   * NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}.
   */
  function changeAdmin(address newAdmin) external virtual ifAdmin {
    _changeAdmin(newAdmin);
  }

  /**
   * @dev Upgrade the implementation of the proxy.
   *
   * NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}.
   */
  function upgradeTo(address newImplementation) external ifAdmin {
    _upgradeToAndCall(newImplementation, bytes(''), false);
  }

  /**
   * @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified
   * by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the
   * proxied contract.
   *
   * NOTE: Only the admin can call this function. See {ProxyAdmin-upgradeAndCall}.
   */
  function upgradeToAndCall(address newImplementation, bytes calldata data)
    external
    payable
    ifAdmin
  {
    _upgradeToAndCall(newImplementation, data, true);
  }

  /**
   * @dev Returns the current admin.
   */
  function _admin() internal view virtual returns (address) {
    return _getAdmin();
  }

  /**
   * @dev Makes sure the admin cannot access the fallback function. See {Proxy-_beforeFallback}.
   */
  function _beforeFallback() internal virtual override {
    require(
      msg.sender != _getAdmin(),
      'TransparentUpgradeableProxy: admin cannot fallback to proxy target'
    );
    super._beforeFallback();
  }
}

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

Contract ABI

[{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"address","name":"admin_","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"beacon","type":"address"}],"name":"BeaconUpgraded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"admin_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"implementation_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Block Transaction Difficulty Gas Used Reward
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.