ERC-721
Overview
Max Total Supply
0 NHXS
Holders
443
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
1 NHXSLoading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|
Contract Name:
NHXS
Compiler Version
v0.8.7+commit.e28d00a7
Optimization Enabled:
Yes with 300 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @title: NEW HERE: X Marks the Spot Solutionists /// @author: manifold.xyz import "./ERC721Creator.sol"; //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // // // // // .....:......................................................:..:............:::::...........................................:....::.:..::::.....:.............::::......::...........:::.............::...................................................::.................................:.:.......:.::.....:...:::.:.:::::......:::::::::::::::::......:.::.::::::.::::::::::::::...:...:::.:.::::::..::... // // ..............................................:.............:.............................................::...........::...:::..::::...::....::..:::.....:::.............:...........................::..............................:....................:......:..........:::.............:::...::....::.:..:.::::.:::::::::...........:.:::::.::.:::::::.:::::.:::::::::::::..:.:..:.:::::...:::::::::....:: // // :...:::...:......::...........::......::..::..:................::...................................::......:.......:..::::::...::::..::::......:.::::......::...:.:......:...:::............:.:.:::....:.............................:........::.....:::::::.........:.................::...:::.::....::::::::::::::::::...:.::......^~::::::::::::::::::::::::::::::::::::::::.::..:.....::......:....:...::.. // // ::::::::...........::...........:::..................:.......:.::..................:......................:.....::::::.:::.....:::::...:..::::::.::.::::.....::..::.:.:........::.................:::..:...........::.............................:....::::::...........................::..:::::....:...:....:::...::..................:......^:....:.::.:::::::::::::::::::::^^:~~^:^~~^^!~!~~^!~^!77!~!!::::: // // ::::::.::..:...................::...::...:::.....::..:::.....:......:.....:....::....::.........:..::::::::...::::::::..:::....:::::...:::::::::.:::::.......::..:::.::.:...::....:..............::::.::..............................................................................::::.::..::::^!~~!~~~::~!~~~!77!!!!!~!!7~!~:::^:7JJ77JJ?JJJY??JYY55?J?77!^^::::::::^~^!5PPGGGBG5PBGGGBBBBBGBBB#BBBGGBG~::: // // ......::....................:..:....:.......:::.:::::::........:.::...................:..:...........::::::...::.....::::::::::::.:::...:::.:::...:......::...::.::........:..::..:::^^:::::^::::.::.:::::^::^^~^~~^...:.:::~~~~~~!!!!?7~^..........:::^:^?J?JJYYJJJJ?~:.....:^^~Y55YY555P5PP57~^^JPGGGBGGGGGBBGGB#BBGBGBBGBBGBBGJ^~^:PBB#BBBBBBB&BGBB##BB#&##BGGYJ!^::::^!:~G##############&########B###BBG~.:. // // :....:::...::...:.::...........................:......:...:::.....::.........:::.:......::::::::....:::::^~~!!^^~~~~^^:::::::::^^^~~7!~~!7!!~:^^^!777????J????JJ?JYJJJJYYJJ5Y?JJ!^~?Y5555555P5555!..:~^^?5PPPPPPPGPP7:.:^^^?PGGGGGGGGGGPPJ^..........:^^:!5GBBBBBGGGGB5^.....:^.:YGGGGBBGGBBGGJ~:.YBBBBBBB#######&####BBBBGB#GGGGY~^.^PGB##B#BBBBBB#BB##BBB#B###&BBBP?^::^~.!G####&#####&########&#B&#&BBBBG?.:: // // :.:::::::::.^!~::::...:^^^!!?J?7~:....::::^!7!!!!!777?7!~::::.....:^^~?JJJJYY5YYY5J?!:....:::::::...:^^!YPPGBGGGGGGPG5?^:::::~~~YGBGB##BBBBBP!~^!PBBBGBBBBBBBGGGGGBBBBBBGGGB#BBGJ^^JPGBBBBGBBBBBGY^.^~:^5GGBGGGGGGBBP7.^~.^YGBBBBBBBGGGP5?^:.........:^^.~5BGGGGGGBBGGP~..:..:^:.JBGPBBBBBGGGB5!:^YGBGGBBB##B######&#BB#BB##B#BBGY^~::YGB#BGBBBBBBBBGBB##BGB#B#BBBBBB#G~.^~.7BBB#&###&&&BB&&&&&&&#####&#BB#B?.^: // // :^~^!YP55PP55PP5PY~.:^~7Y5GGGGGGGP?:.:^~:!5GGGGGGBBBBBGGP!::::::.^~^~YGGGBGBBBBBBGGGP!:..::::::::::::^:^YBGGBGB#BBBGBBBY~.:::^^:?GBB##BGBBBGGJ~:^PBBBBBBBBBGBBGGBBBBBBB##BBBGBBGY~:~5GGBBBGGBBBBGP7.~^.?GGGGGBBBBBBBB5^:~.^5GGBGGBBGGGGPY~:...........::.~5GGBGGGBBBGGP!:..:.:^:^YGGBBGBBBBBGG57^:?GBBB####&&#BB#&#G##BBGBBB###BG5~^::YGBBBB#####BBBB#BB###B&#BBBB###B#G!:~:~P#&###&&##BB###&@&#&&#BB###B#BBY::: // // :~~:^5BG##BBBBGGGP7^~~75GGBGGBBGBBP?:.~~.JGGBBGGBGGGGGGBG5!.:::::~~^?PGGGGBBBGBBBGGBG7.::::::::::::::~:^YGGB#BG##BBBGBBBP7:::~^.7GBGGB#B#BBBBY!:^5BB##B#BBBBBGGB#BBBB#BBBBBBGBBGJ~^^75PGGBBBBBGGGGY~~:^5GGGGGGGGBBGGBGJ!^:?PGPGB###BGGGPJ::...........:~::YBBBBGGPGGGG5~.:::::^::JGGBBBB#B#BBGPJ^.?GGBBBB###&&#BB#######BBBB##GGG5!~: YBBBBBBB###BBBBBBBGB#BBGBB#####BB#P!~.^G###B########BP5YYYYYYJJ??JYJ?7~.:: // // :^~:^YGGB###BGGGGP?!~^?GGBBBGGBBBBB5~:~^^5GGGGBBBBGPGBB##GJ^.:::~~:!5GGGGBBBBBBBBBBBP?:::..:::::::::^~:^5BBB##B##B##BBBBBBY^:~^:?BBBG#&#BBBBBY~:~5B##&#BGB##BBBB#BBBBBBBBBBBBBBBJ~!^:JGGGBBBBBBBBBGJ^:JGGPPGGBGBBBGGBBP7:~YPPGGB#BBBGGG5!::...........^^:~YGGGGGBBGGBGP!..:..:^:.JGBBBBB###BGGGJ^:JGBBBBBB&###BBPY5JJJJ?7??7?7777~^~:.YBGBBBBBBGGBBGJ~~!7!!PBB####&GG##BB5~.:G##B###&&&##B5!~~!7!7!!!!!!7~^:.::: // // ::^:^YGGBB#BBGGGBB7^~^~YGPGB#BBBBBG5!^~::5BBGGGGGGGBBBBGBBG?:.:^!^^YGGGGGGGGBBBBBBBBGY^::.:::::::...^~:^5BBBB##B###BB##BBBBY^~^:7GB###&###BBB5!::YGB#BBBGB###BBGGGGGGGGGGGBGGGGPJ~~^.!PBGGGGBBBGBBGJ::YBBGGBGBBGGBGGBBGJ:~5GGGGGGGGGGPPJ^.........:...^^.^YGGGGBBGBGGBGJ^^^^^!7!~5BBGB#####BBBG7^.7GB##BB&&#BBBBJ~777!!!!~7!~!!~~::~^.JBBBBBBGBBBBGG7.:.^^.?BB###&#BBBBGB5~::PB##B#B#&&&###BBGBBBB#BBB##BBGY~::: // // ::^:^YBBGGBBBBGBGG?:^~^!YPGGBGBBBGP7::^:^5B##BGGBBBBB##BBBBP!:^~^^YBGBBBGGGBB##BBBBBG?:.:::::::::::.^!::YB###&#&&####&&#B##BY!^.7BBB&&##BBBBG5!:^YG#&&BBBBBBBBGJ!!~~~!~^~7!^~^^^::^~^.?GBBBBBBBBBBB5^!GGB##BGGGGGGGGBGGP7JGGGGGGGGGGGPP7:.........:...:^:^YGBBBBBGGBBGGGPPPGGGBBGGB#BB#B####BGG7^:?BBB##BB##B##BBBBBBBBBGB##BBGGB?:~^.7GBGB#BB#B#BBGJ~^^~77JGBGB#BB#&#BBBP!^~5BB#&&####BB#&&##BBB#&&###&BGGG~::: // // :^^:.Y#BGBBBBBGBGG?.::^~777YGGGGGP?^::^.:5GBBGGGBBBBB#B#BBBGP7~~:7PGGGBBGGBBB####BBBGY^::::::::::::.:!^:JG#BB##&#####&#B##B#B5!.7GB#&#####BBB5!:^5B#####BBBBBBGYYJ?5YYYYJJYJJJY?^::~^.^5GGGBBBBBBBGP?YBBGBBBBBGGGGGGGGBGPPGGBGGGBBGGGG5~::............:^::JGBBBBBBBBBBBBBBBGBBB###BBBBBBBBBBGGP?^:?GBBBB#####B##BB###B#BB##&&BB#GJ^~^.?GBBBBB#BGBBBBGGGPGBBBBBBBBB###B##GP7:^P&###&######BB##B&&&##&&&&#BGBG~..: // // :^~:.YBGGBGGBBBBGGY^.:^!!75GBBGPJ!:.:^~^:YPPGGGBBBBBBGGGGGBGB57~7PGGGBGGGBBBBB##BBBGGP!..::::::::::::^:.?GBBB&####BB####B#BB#BP7JGGB####BBBB#5!^:YGBB#######BBBB########BBBBBBBG7:::~:.?GBBBBBBBBBBP5GGBB#BBBBGGBGGGPPGGGGGGGGGBBGGGGP7:....:...:^:...:^:^YGBGBBBBBBGGBGGBBBBB####BBBBB###BBGGP?~:7GBB#B###BBBBBB#&####BBB###BB#BY^~^.?GBBB#B##BBBB###BBBB#BBBBB#BGGBBBBP!!:^PBB#&#&&#&&&&&##&&##&#B####BGGG7:.: // // :^~:.7GGGGGGBGGGGGJ::~~~JGGGP5J~:.:::^~^:YGBGGBBBBBBBBGGPGBBBBJ~JGGBBBBBB##B##BGGGBBBP7.::::::::.::::~^:?GB#######B#BG#&#BBGBB#BPG&&###&#BB#BP7^:JBB###BB#&###GB&&&#BB##BBBBBBBP7:::^~:~5GGBBBBBBB##BB###BGGGBGGGGGBBGB##BGGGGGGGGGGPJ^:..............:^::JGBBBBBBBBBGGGGGBBBBBB#B##BB#&#BBBBGPJ~.7GBBBBBGBB#BBB#&#B##B#####BBB#BJ:^^.!GBBGBBB#BGBBBBBBBBGBBBGGGBB#BGBB5~:~::5G###B&&##&&&##B####BB##BBBGGGG?.:: // // .:^:.7B#BGGGGGGGGGJ^:^^^!!!~~:....:::^~^7PBBGGBBBBGGBBBGPPB##BPPPGBBBBGBB#&##BGGGGBBGPJ^:::.:::..:..:~^:?GB######B##BG##BB##BB##B#&#BBB#BGBBB5!^:JB#####B##B##BBB##B##BBBBBBGBBG7::::^^:?PGGBBBBBB##B#BB#BBBBBBGGGGGBBB##BBGGGGBPPPG5?^.:.............:^::JGGBBBBGBBBBBBBBBBBBB###BBBBBBBBBGGGGJ^:7GBBBB#BGBB##BB#BB##BBBB####BBBY^^^.!GBBBGGB##BBBBBBGB##B#BGB##BBBGG5^.^~^:YGB#B##&&####BG55YYYPP55YJJYYJ?:.:: // // ::^:.?BBBGPGGGGGGG5!::.....:::::....:^::7PGPGGBGGGBGGGGBBGGGBGBBBBBBBBGGBBBB##BBBBBGGPJ^.::...:..::.:~^:?GB#BB#&#BB#BJJGBGBBBBBBBBBBGGB##B#BBP7::JGB##&&BB##BGBBBBBBGBBB##BBB#BG7::::^~:^YBBBGGBBBB###B#BBBBBGGGGBGBBBBBBGGGGGBGGPGGY~:::.............::.:JGBGB#BGBBBBBP5555YY5YJ5GBB###BBGGBBGJ^.7GBBBBB###BBBBPY5YYYJJYYJJ???7!~:^^.7GBGBBBGBBBB##BGBBB###BGB##BBBY^^..:!:.YBB#BB#&&&BB#G?~^^^^~~~!!~^^^^~^^:: // // .:^::?GGGGGGGGGGGGY~:::::.:::::::...:^^:7PGGGGGGGGGBBGGBBBBPPBBBBB##BBGGGGGB#BBGGGGBBGJ^:.::::::..:::^^:?GBBBBBB#BBBB?^YGBGGB###GGBBBBBB#&BGGP?^.?GBBBBB#BBBBBBBBBGBBGGGGGBGPPP57:::::^^.7GBGBBBB#BB##BBB##BBGYJPGBBBGGGBBBBBBBGGPPP?:................:^::?GGGBBBBBGGGG?::::.:~^:7GG##&&#BGGBBGJ^.~PBBB###&#BBBGJ^^^!~^:^!~^!~^~~!~~^.!GB##BBGBBGBBBGPGGBBBBBGGGB#BBG?.:::!::JGB###&##&#B#BGGGGGGGBBB#BGGBGBGJ.. // // ..^:.?GBBGPGPGGGGG?::....:::....::...^^:~PGBBBBBGGGGPPPGBBBBGBBGGGBBBGGGBGGGB##BBBBBBGJ^::::.::...:.:~^:JGBBBBBBBB#BBY^^?PBBBBBBBBBBBGGGBGBGBP?^.!GB#BGBBBBBBBGY7~!?7J7!~~!!~^^^..::::^^:~5GBBBB#####BBBBB###P!!5BBBBBBBGGBBB##GGGPY!:................:^::?PGGGGBBGGGGGJ^:..::^^.7GBB##&###BGGPJ~:!PB###BBBBB###BGGBBGGPGBGGBGGGGGP7^.~GB#BGBBBGGBGGY^!PGGBGB#GBB#BGGG?:.:~::5B#&&####&#B###&###&##&&&##BBBBBY.: // // .:^:.?GGGPPPGGGGPP?:::.:::.:::...::.:^^:!PBBGBBBBGGGYJ5GGGBGGGGBBBGGGGGGG5YGB####BBBGGP7:.:::.....:::^:^YGBBBB###BGBBY7~:7PBGGPB#BBBBBB###B##G?^:7GGBBBBB##BBBGY77?JJJ??J?JJ?JJJ?!:::::^:.7PGBBBBGBBBBBBGGGGG5!:7GBGGGBBBBBGBBBGPPP?:.................:^::JPGGBBBBBBBGGJ^..:::~^.!GBGGGBB##BBGPJ~.~PBBBBB#BBBBGGBBB###BBBBBGBBGBGGP?^.!GBBBBBBBGGGGGY~:!5GGBGBBBBBGBB#BY~.~^:YB#&#&&B###BB#########&&###BBGGGY:. // // ::^:.7PPBGGGPGGPPGY~::..........::..:^~:!5GGGGGGBBBGY!?PGGGGGGBBBBGGBBBG5!?GB##BBBGGGGGJ:::^::.::::.:~:.?PGGGB##BBGGBY^~~^~YGBBGB##B#GB####BBP?^:JGGBBBBBB###BBBB####BBBB#BGB#BGG5~::::^~:^JGBBGBBBBBBBGGGGG5?~::7PBBB###BBBBBGGGPY^..................:^::?GGGBBBBBBBBBY~:::::^^^?GGBBBGGGGGGBG7^.~PBBGGBBB#BBGBBBBB##BBBGGBGBBBBBP7^.~PGB#B#BBGGGGG?~~:~YGBGGBBBBBBBBBBP!~^.7GB####BBBB&##BB##BB####BB##BBBG5^. // // .:~:.7GGGBBGGGGGGPY~::....::....:...:~^^JPPGBGGGBGGG5!~JGGGGBBGGGGGGGGGP?^7PGB##BBBGPGGJ:.:^::::.::::^^.7GGBBGGB####B5^:~!^:JBBGB##BBBBBGBBBBP7^.7GBBB#B########BB###BBGPGBBBBGGGY^...::~^:!5GBGBBBBBBGBBBGGJ^~^:!5GBBBBBBBBBBGGG57::.................::::7GBPBBBPGGGGBY^...::^^:7PBB#BGBGGGBBGJ~.^PGGGGGGBBBBBBBBGGBGBBBBBGGGBBBBP7^:!PBBBB#BBGGGGPJ.:~^^?GBBGGGBGPGGGBGG5^ ?BBBBBBB##B#&####BB#&#BB#BBBBBBBJ.. // // ..^:.!PBBBGGGPGGGG5~..:.....:.......:^:~YGPPGGB#BBGG5?:~YGGGGGGGGGGGGPPY~:7PGBBBGGBBGGP?:::::::..::::^^.~PGGBBBB###BBJ^.:~~::?GBBBBBBBBBBGGBBP7^.7BBBBB###BBB#B##BBB#BBBBBBBBBGGGY:.:...:~:.!PGBBGGGGGBBBGG5~.:~^:7PBB#BGGGBGGGGGY~::.........::.......:::?GBGGPPBBGGGGJ^.....^^.!GBBBBB#BGGBBP7~:!PGGGBBBGGBBBBBBBGGGB#BGGBBBBBBBP!^.!GGGGBBBBGGGGPJ: .~^:7PGGGGGGBBGPGGGP!:?PGBP5PPPGBBGGPPPGGPGP5555PP5J5Y!.: // // ..^^.!PPGBGPGGGPPG5~:....:......:::.:^::JGGGGGBBBGGGP?^:!PGPGGGPGBGPPG5?^:7GBBGGGGGGBGGJ:.::::....:..~^.!GGGBBBBBBBBBJ.:::^~^^?GBBBBBBBGBBGGBP?^.7G#BBBGG##BB#BB#BB##BGGBBGBBBGBB5~.:....~~:^5GGBGGPPPGBBBP7:..^~:~5GGGGGGGGGGGGP7....................:^::!5PGPPGGPGPPP?:....:^~:~5PPPPPP5PGP5J7~^^J5P555YYY5555YY55YYYYJYJYYYJ?7?7:^:^7??!77777?~^~:...::::^^~~~~^!!~~~^^^::::~~:::::^^^^^^^^^^^~:...:::..::.:: // // .:^:.!5GGGGGPPGGGP5!.............:..:^::?GPPGGGGGGGGY~^::?555PGGGGGGG5!^::!PGBBGBGPGGPPJ:.:.:::.....:^^.7GBBGBBBBB#BG?:.::::~^:?PGGGBGBBGGBBGP7^.!GBBBBBBBGGBBBBGBBGGGGGBGGBGGBGPY^......:^^:?PGPPPPP5PP55?^...:^^^7YY5YYYYYYYJJ7^.................:...:::^!!~!7!~~~~^::.......:::^^~^^^^:^^:....::.:~:.::::::::::::...........::..:...............:.:.:..... ... . ..............::.......:...:..::.......::.. // // .:^:.~5GPGGGGPGGGG5~................:^::?GPPGGGGBGGBY^:^:~J5PPPPPPPP5?:^^^?PPPGGGGGGGPP?.....:::....:^~:!YP55PP55PPPY7:...:.:~^^7Y5YYYYYJJJJ?7~^^~7JJJJ??7?77???7?7!7!!7!!!!!7~^~^:.......::::^~^^~~:::^^:::....::::..:::.:::.................................... ......................:.......:.......::.......::.:...:.:............::..:...:::..:.......:...........:.................::..:.::.::.:...:::.. // // ..^~:!Y5P55PGP55Y5J^.................~~^7JJ?JYYJJJ??!::^^:^^~^^~~^^^::.:::^~~~~~~!!!!~^::........:::::::^^^^^^^:::...:::..::..::..............:::........................................::.......:.....:.........................................................................:.::::.......:::.................::::....................::...:..............................:......::..::......:::.:::.:::::. // // ..::::::::::^~^^::::................:::...:.:::............... ............ ...........:.....:..::....................::.....::.....::.....::....:::....:::....:......::..:::.::.........:............::..................::.........................................................::........:..::.......:::.......:.....................:................:.......::.....................:...:..::.:::..::.:: // // ............................................................................................................................::::.:::.:::..:..::::..:::....:....:..........:..:::........................:.................................:.........................................::.....:::.....:.........:...................................::...........................................:::......::....:.. // // ...............................::.........................................................:...............::......:............:.:::...::::.::::......::...::::..........::..::.:......................::...........:...................................................................:..:::.....::..........:::...................:....:..:.........................................::.....:::........:...... // // ..........................................................................................::..................::::..........::................:..........:......:...:..:..:..:................................................................:..............................................:..................:......................:..:..:....:::...::...:::........................::......::::..:..:.::... // // ...........................................................................................................:.................::::.........::..........::::.....................................................................................................................................:..........:...........:............::..............:.............::................:...............::...:.:...:: // // ................................................................................:...........................................::........:....:.......:...:::...........:.............:.....................................................:.............::.................................:.....................................................:..:.::.:......................:....................:::...:..... // // .................................................................................................................:::....................::................::.......................:::::............... ......................................................................:..................:..........::..::.........:..............::..:.......:.....:.:.......:.:::...............:...:......:::....:::. // // .............................::.................................................................:................:...................:::::.............::..::::.............:.................................................................................................:.............:..................:..............:::............:...........::.....:.......:.......................x marks the spot // // ....................................................................................................:......::..............................:..................:.................:........................................................:......:.......................................................:................:.....::......:......::...........:.::.....:...............................solutionists // // // // // // // //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// contract NHXS is ERC721Creator { constructor() ERC721Creator("NEW HERE: X Marks the Spot Solutionists", "NHXS") {} }
// 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 ERC721Creator is Proxy { constructor(string memory name, string memory symbol) { assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1)); StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a; Address.functionDelegateCall( 0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a, abi.encodeWithSignature("initialize(string,string)", name, symbol) ); } /** * @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; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (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 overridden 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 internal 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 overridden should call `super._beforeFallback()`. */ function _beforeFallback() internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (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 /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (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) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } }
{ "optimizer": { "enabled": true, "runs": 300 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
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[{"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"}]
Contract Creation Code
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Deployed Bytecode
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