Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•  contract AuthereumProxy *
•    - function ()
•    - function implementation()

More Options

• Is this a proxy?
• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2019-11-03
*/

pragma solidity 0.5.12;
pragma experimental ABIEncoderV2;

 // @author Authereum, Inc.

/**
 * @title AuthereumProxy
 * @author Authereum, Inc.
 * @dev The Authereum Proxy.
 */

contract AuthereumProxy {
    string constant public authereumProxyVersion = "2019102500";

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

    /// @dev Set the implementation in the constructor
    /// @param _logic Address of the logic contract
    constructor(address _logic) public payable {
        bytes32 slot = IMPLEMENTATION_SLOT;
        assembly {
            sstore(slot, _logic)
        }
    }

    /// @dev Fallback function
    /// @notice A payable fallback needs to be implemented in the implementation contract
    /// @notice This is a low level function that doesn't return to its internal call site.
    /// @notice It will return to the external caller whatever the implementation returns.
    function () external payable {
        if (msg.data.length == 0) return;
        address _implementation = implementation();

        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 Returns the current implementation.
    /// @return Address of the current implementation
    function implementation() public view returns (address impl) {
        bytes32 slot = IMPLEMENTATION_SLOT;
        assembly {
            impl := sload(slot)
        }
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_logic","type":"address"}],"payable":true,"stateMutability":"payable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"constant":true,"inputs":[],"name":"authereumProxyVersion","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"impl","type":"address"}],"payable":false,"stateMutability":"view","type":"function"}]

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

189:2242:0:-;;;;;;;;;;;;;;;;;;;;;;;1286:1;1267:8;;:15;;:20;1263:33;;;1289:7;;1263:33;1306:23;1332:16;:14;:16::i;:::-;1306:42;;1633:12;1630:1;1627;1614:32;1846:1;1843;1829:12;1826:1;1809:15;1804:3;1791:57;1925:14;1922:1;1919;1904:36;1963:6;2037:1;2032:36;;;;2102:14;2099:1;2092:25;2032:36;2051:14;2048:1;2041:25;1370:760;189:2242;220:59;;8:9:-1;5:2;;;30:1;27;20:12;5:2;220:59:0;;;:::i;:::-;;;;;;;;;;;;;;;;2250:178;;8:9:-1;5:2;;;30:1;27;20:12;5:2;2250:178:0;;;:::i;:::-;;;;;;;;;;;;;;;;;2297:12;2322;562:66;2337:19;;2322:34;;2405:4;2399:11;2391:19;;2376:45;;:::o;220:59::-;;;;;;;;;;;;;;;;;;;:::o;5:113:-1:-;88:24;106:5;88:24;;;83:3;76:37;70:48;;;125:339;;233:35;262:5;233:35;;;280:71;344:6;339:3;280:71;;;273:78;;356:52;401:6;396:3;389:4;382:5;378:16;356:52;;;429:29;451:6;429:29;;;424:3;420:39;413:46;;213:251;;;;;;471:213;;589:2;578:9;574:18;566:26;;603:71;671:1;660:9;656:17;647:6;603:71;;;560:124;;;;;691:293;;825:2;814:9;810:18;802:26;;875:9;869:4;865:20;861:1;850:9;846:17;839:47;900:74;969:4;960:6;900:74;;;892:82;;796:188;;;;;991:118;;1081:5;1075:12;1065:22;;1046:63;;;;1117:163;;1232:6;1227:3;1220:19;1269:4;1264:3;1260:14;1245:29;;1213:67;;;;;1288:91;;1350:24;1368:5;1350:24;;;1339:35;;1333:46;;;;1386:121;;1459:42;1452:5;1448:54;1437:65;;1431:76;;;;1515:268;1580:1;1587:101;1601:6;1598:1;1595:13;1587:101;;;1677:1;1672:3;1668:11;1662:18;1658:1;1653:3;1649:11;1642:39;1623:2;1620:1;1616:10;1611:15;;1587:101;;;1703:6;1700:1;1697:13;1694:2;;;1768:1;1759:6;1754:3;1750:16;1743:27;1694:2;1564:219;;;;;1791:97;;1879:2;1875:7;1870:2;1863:5;1859:14;1855:28;1845:38;;1839:49;;;

bzzr://df4401333fb8c26a38547c751ff4c528d95f9c5a191e6bc81f110b4125072004