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0x1ff11609c63dcA24E7a32098C59C974486F4eD07
 

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Safe Transfer Fr...147411632022-05-09 7:36:17952 days ago1652081777IN
0x1ff11609...486F4eD07
0 ETH0.0012598120.32057598
Mint Base New147408592022-05-09 6:24:13952 days ago1652077453IN
0x1ff11609...486F4eD07
0 ETH0.0047031925.41386762
Mint Base New147408282022-05-09 6:18:03952 days ago1652077083IN
0x1ff11609...486F4eD07
0 ETH0.0039894821.55731269
Mint Base New147408062022-05-09 6:13:44952 days ago1652076824IN
0x1ff11609...486F4eD07
0 ETH0.0062513433.77934427
Set Token URI146320842022-04-22 2:43:17969 days ago1650595397IN
0x1ff11609...486F4eD07
0 ETH0.0025066155.41681273
Safe Transfer Fr...146319972022-04-22 2:24:26969 days ago1650594266IN
0x1ff11609...486F4eD07
0 ETH0.0033655854.28630289
Set Token URI145942762022-04-16 4:42:30975 days ago1650084150IN
0x1ff11609...486F4eD07
0 ETH0.001995144.10830707
Mint Base New145826632022-04-14 9:17:20977 days ago1649927840IN
0x1ff11609...486F4eD07
0 ETH0.0058672732.14243331
Safe Transfer Fr...145762032022-04-13 8:55:53978 days ago1649840153IN
0x1ff11609...486F4eD07
0 ETH0.0020549333.14564666
Safe Transfer Fr...145759762022-04-13 8:02:01978 days ago1649836921IN
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0 ETH0.0018941630.55244618
Safe Transfer Fr...145758722022-04-13 7:36:44978 days ago1649835404IN
0x1ff11609...486F4eD07
0 ETH0.0020470633.01869567
Safe Transfer Fr...145758282022-04-13 7:26:03978 days ago1649834763IN
0x1ff11609...486F4eD07
0 ETH0.0017051427.50365595
Safe Transfer Fr...145757652022-04-13 7:10:14978 days ago1649833814IN
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0 ETH0.0017890728.85744012
Safe Transfer Fr...145757232022-04-13 7:02:32978 days ago1649833352IN
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0 ETH0.0024456939.44854654
Safe Transfer Fr...145757182022-04-13 7:00:33978 days ago1649833233IN
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0 ETH0.0021398434.51537718
Safe Transfer Fr...145757102022-04-13 6:59:03978 days ago1649833143IN
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0 ETH0.0022844836.84836675
Safe Transfer Fr...145757032022-04-13 6:57:25978 days ago1649833045IN
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0 ETH0.0022430336.1796732
Safe Transfer Fr...145756432022-04-13 6:40:40978 days ago1649832040IN
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0 ETH0.003105150.08479113
Safe Transfer Fr...145755802022-04-13 6:25:13978 days ago1649831113IN
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0 ETH0.0019586331.59241556
Mint Base New145749662022-04-13 4:01:29978 days ago1649822489IN
0x1ff11609...486F4eD07
0 ETH0.0055711930.10413473
Mint Base New145748662022-04-13 3:40:38978 days ago1649821238IN
0x1ff11609...486F4eD07
0 ETH0.0059431832.55824799
Mint Base New145748502022-04-13 3:37:03978 days ago1649821023IN
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0 ETH0.0058467332.02987083
Mint Base New145746422022-04-13 2:53:37978 days ago1649818417IN
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0 ETH0.0047082825.44136341
Set Token URI145700652022-04-12 10:01:42979 days ago1649757702IN
0x1ff11609...486F4eD07
0 ETH0.0018027839.85651683
Safe Transfer Fr...145696752022-04-12 8:31:45979 days ago1649752305IN
0x1ff11609...486F4eD07
0 ETH0.0009881127.14535444
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Contract Source Code Verified (Exact Match)

Contract Name:
DEGEN

Compiler Version
v0.8.7+commit.e28d00a7

Optimization Enabled:
Yes with 300 runs

Other Settings:
default evmVersion
File 1 of 5 : DEGEN.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title: M1NG0$
/// @author: manifold.xyz

import "./ERC1155Creator.sol";

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//                                                                                                                                                                                                        //
//                                                                                                                                                                                                        //
//                                                                                                                                                                                                        //
//                                                                                                                                                                                                        //
//    ^^^^^^^^-- . ... ... .- --. . / -- . / ..-. --- .-. / ..-. .-. . . / .-.. . --. . -. -.. .- .-. -.--^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^    //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                                                        //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^MAG^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^7777~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^~~~~~~~~~~~~~~~~~7777~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^!7777777777777777????77777777777?!^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^~~~~~~~~!77777777777777777777777777777777!~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^7?77777?7!!7~^^^^^^^^^^^^^^^^^^^^~~~~~^^^~?7777777^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^~~~~77777777!!!!~^^^^^^^^^^^^^^^^^^^^~~~~~^^^~77777777~~~~^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^~77?7^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^~~~~~!!!77???~^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^~~~~!7777^^^^^^^^^^^^!????????????????????????!^^^~~~~~!!!!7777~~~~~^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^~?777!!!!^^^^^^^^^^^:5@@@@@@@@@@@@@@@@@@@@@@@@5:^^^^^^^^^^^^^^^7?7?~^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^~?777!!!!^^^^^^^^7???YGGGGGGGGGGGGGGGGGGGGGGGGY???7^^^^^^^^^^^^777?~^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^~???7~~~~^^^^^^^:G@@@Y........................Y@@@G:^^^^^^^^^^^7?7?~^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^~~~~!!!!!~~~~^^^^?JJ?5PPP7........................7PPP5?JJ?^^^^^^^^7777!~~~~^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^!???!^^^^^^^^^^^^#@@@7................................7@@@#^^^^^^^^!7!!7???!^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^!?7?!^~~~^^^^^^^^#@@@7................................~P5P5JJJJ~^^^!!!!777?!^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^!?777~~~~^^^^^^^^#@@@7....................................~@@@@~^^^~~~~777?!^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^!?7?7~~~~^^^^^^^^#@@@5???????????????????????J^....::::::.^5555YYYY!~~~7?7?!^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^!?7?!^^^^^^^^^^^^#@@@@@@@@@@@@@@@@@@@@@@@@@@@@7...::::::::::::^&@@@7^^^!???!^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^~!!!7?7?!^^^^^^^^^^^^#@@@GYYYYYYYYYYYP@@@@@@@@@@@@7...::::::::::::^&@@@7^^^~!!!!!!!~^^^^^^^^                                                                                                //
//    ^^^^^^^^7????77?!^^^^^^^^^^^^#@@@7...........~@@@@@@@@@@@@7...::::::::::::^&@@@7^^^^^^^!???7^^^^^^^^                                                                                                //
//    ^^^^^^^^~!!!777?!^^^^^^^^^^^^#@@@7...........^YYYYYYYYYYYY~...::::::::::::^&@@@7^^^~!!!!!!!~^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^!?7?!^^^^^^^^^^^^#@@@7............................::::::::::::^&@@@7^^^!???!^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^!?7?!^^^^^^^^^^^^#@@@7............................::::::::::::^&@@@7^^^!?7?!^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^!?7?!^^^^^^^^^^^^#@@@7.............................:::::::::::^&@@@7^^^!?7?!^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^!?777~!!~^^^^^^^^#@@@7................::::::::?5555555P555Y:::^&@@@7^^^!?7?!^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^!???7!!7!^^^^^^^^#@@@7................^^^^^^^:G@@@@@@@@@@@#:::^&@@@7^^^!???!^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^~!~~!7777^^^^^^^^#@@@7...........:^^^^^^^^5PPP#@@@GJJJJJJJYPPPP@@@@?!!!!~~!~^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^~?7?7^^^^^^^^#@@@7...........:^^^^^^^^#@@@@@@@5:^^^^^:!@@@@@@@@J7??~^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^~?777^^^^^^^^#@@@7.......:^^^^^^^~PGGG&@@@5?JJ!^^^^^^^~JJ?J&@@@J77?~^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^~???7^^^^^^^^#@@@7.......:^^^^^^^~&@@@@@@@?:^^^^^^^^^^^^^^~&@@@J7??~^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^~~~~~!!!!!!!!#@@@7.......:^^^^^^^~&@@@Y???!^^^^^^^~~~~~!!!!YYYY!~~~~^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^~????7!!7#@@@7.......:^^^^^^^~&@@@!^^^^^^^^^^^~~~~~!!!50999~^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^~~~~7777JYYY~.......:^^^^^^^~&@@@7^^^^^^^~!!!!77777777~~~~^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^7?777777^.......:^^^^^^^~&@@@7^^^^^^^~7!!7?7?777?7^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^~~~~G###J!!!!!!!!77777777JYYY777777777777!~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^#@@@57???????777777?777777?777777777?!^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^#@@@?:::::::^~~~~~~~~7777~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^#@@@7.......:^^^^^^^~7???~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^#@@@7.......:^^^^^^^~#&&#!^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^#@@@7.......:^^^^^^^~&@@@7^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^#@@@7.......:^^^^^^^~&@@@7^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^#@@@7.......:^^^^^^^~&@@@7^^^^^^^^^^^^^^^^^^^^^^999^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^#@@@7.......:^^^^^^^~&@@@7^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^#@@@7.......:^^^^^^^~&@@@7^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                //
//                                                                                                                                                                                                        //
//                                                                                                                                                                                                        //
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


contract DEGEN is ERC1155Creator {
    constructor() ERC1155Creator() {}
}

File 2 of 5 : ERC1155Creator.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/proxy/Proxy.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/StorageSlot.sol";

contract ERC1155Creator is Proxy {

    constructor() {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x142FD5b9d67721EfDA3A5E2E9be47A96c9B724A4;
        Address.functionDelegateCall(
            0x142FD5b9d67721EfDA3A5E2E9be47A96c9B724A4,
            abi.encodeWithSignature("initialize()")
        );
    }

    /**
     * @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 Returns the current implementation address.
     */
     function implementation() public view returns (address) {
        return _implementation();
    }

    function _implementation() internal override view returns (address) {
        return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }    

}

File 3 of 5 : 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 4 of 5 : 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 5 of 5 : 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
        }
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 300
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Deployed Bytecode

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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.