false
true
0

Contract Address Details

0x06FF7BD8AC1136cE6340593292681FAA2A4B8c9d

Contract Name
GemJoin
Creator
0xbcaee0–64cea5 at 0xeeadd9–8ba976
Balance
0 PLS ( )
Tokens
Fetching tokens...
Transactions
140 Transactions
Transfers
0 Transfers
Gas Used
0
Last Balance Update
26127117
Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
Contract name:
GemJoin




Optimization enabled
true
Compiler version
v0.6.12+commit.27d51765




Optimization runs
200
EVM Version
default




Verified at
2025-04-18T13:57:40.892283Z

Constructor Arguments

0x00000000000000000000000016ca93f2f65d5495c874109fff38d11d39850b6757504c532d410000000000000000000000000000000000000000000000000000000000000000000000000000a1077a294dde1b09bb078844df40758a5d0f9a27

Arg [0] (address) : 0x16ca93f2f65d5495c874109fff38d11d39850b67
Arg [1] (bytes32) : 57504c532d410000000000000000000000000000000000000000000000000000
Arg [2] (address) : 0xa1077a294dde1b09bb078844df40758a5d0f9a27

Contract source code

// SPDX-License-Identifier: AGPL-3.0-or-later

/// join.sol -- Basic token adapters

pragma solidity ^0.6.12;

interface GemLike {
    function decimals() external view returns (uint);
    function transfer(address,uint) external returns (bool);
    function transferFrom(address,address,uint) external returns (bool);
}

interface DSTokenLike {
    function mint(address,uint) external;
    function burn(address,uint) external;
}

interface VatLike {
    function slip(bytes32,address,int) external;
    function move(address,address,uint) external;
}

contract GemJoin {
    // --- Auth ---
    mapping (address => uint) public wards;
    function rely(address usr) external auth {
        wards[usr] = 1;
        emit Rely(usr);
    }
    function deny(address usr) external auth {
        wards[usr] = 0;
        emit Deny(usr);
    }
    modifier auth {
        require(wards[msg.sender] == 1, "GemJoin/not-authorized");
        _;
    }

    VatLike public vat;   // CDP Engine
    bytes32 public ilk;   // Collateral Type
    GemLike public gem;
    uint    public dec;
    uint    public live;  // Active Flag

    // Events
    event Rely(address indexed usr);
    event Deny(address indexed usr);
    event Join(address indexed usr, uint256 wad);
    event Exit(address indexed usr, uint256 wad);
    event Cage();

    constructor(address vat_, bytes32 ilk_, address gem_) public {
        wards[msg.sender] = 1;
        live = 1;
        vat = VatLike(vat_);
        ilk = ilk_;
        gem = GemLike(gem_);
        dec = gem.decimals();
        emit Rely(msg.sender);
    }

    function cage() external auth {
        live = 0;
        emit Cage();
    }

    function join(address usr, uint wad) external {
        require(live == 1, "GemJoin/not-live");
        require(int(wad) >= 0, "GemJoin/overflow");
        vat.slip(ilk, usr, int(wad));
        require(gem.transferFrom(msg.sender, address(this), wad), "GemJoin/failed-transfer");
        emit Join(usr, wad);
    }

    function exit(address usr, uint wad) external {
        require(live == 1, "GemJoin/not-live"); // Added live check
        require(wad <= 2 ** 255, "GemJoin/overflow");
        vat.slip(ilk, msg.sender, -int(wad));
        require(gem.transfer(usr, wad), "GemJoin/failed-transfer");
        emit Exit(usr, wad);
    }
}

contract DaiJoin {
    // --- Auth ---
    mapping (address => uint) public wards;
    function rely(address usr) external auth {
        wards[usr] = 1;
        emit Rely(usr);
    }
    function deny(address usr) external auth {
        wards[usr] = 0;
        emit Deny(usr);
    }
    modifier auth {
        require(wards[msg.sender] == 1, "DaiJoin/not-authorized");
        _;
    }

    VatLike public vat;      // CDP Engine
    DSTokenLike public dai;  // Stablecoin Token
    uint    public live;     // Active Flag

    // Events
    event Rely(address indexed usr);
    event Deny(address indexed usr);
    event Join(address indexed usr, uint256 wad);
    event Exit(address indexed usr, uint256 wad);
    event Cage();

    constructor(address vat_, address dai_) public {
        wards[msg.sender] = 1;
        live = 1;
        vat = VatLike(vat_);
        dai = DSTokenLike(dai_);
        emit Rely(msg.sender);
    }

    function cage() external auth {
        live = 0;
        emit Cage();
    }

    uint constant ONE = 10 ** 27;
    function mul(uint x, uint y) internal pure returns (uint z) {
        require(y == 0 || (z = x * y) / y == x);
    }

    function join(address usr, uint wad) external {
        require(live == 1, "DaiJoin/not-live"); // Added live check
        vat.move(address(this), usr, mul(ONE, wad));
        dai.burn(msg.sender, wad);
        emit Join(usr, wad);
    }

    function exit(address usr, uint wad) external {
        require(live == 1, "DaiJoin/not-live");
        vat.move(msg.sender, address(this), mul(ONE, wad));
        dai.mint(usr, wad);
        emit Exit(usr, wad);
    }
}

Contract ABI

[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"address","name":"vat_","internalType":"address"},{"type":"bytes32","name":"ilk_","internalType":"bytes32"},{"type":"address","name":"gem_","internalType":"address"}]},{"type":"event","name":"Cage","inputs":[],"anonymous":false},{"type":"event","name":"Deny","inputs":[{"type":"address","name":"usr","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"Exit","inputs":[{"type":"address","name":"usr","internalType":"address","indexed":true},{"type":"uint256","name":"wad","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Join","inputs":[{"type":"address","name":"usr","internalType":"address","indexed":true},{"type":"uint256","name":"wad","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Rely","inputs":[{"type":"address","name":"usr","internalType":"address","indexed":true}],"anonymous":false},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"cage","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"dec","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"deny","inputs":[{"type":"address","name":"usr","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"exit","inputs":[{"type":"address","name":"usr","internalType":"address"},{"type":"uint256","name":"wad","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract GemLike"}],"name":"gem","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"ilk","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"join","inputs":[{"type":"address","name":"usr","internalType":"address"},{"type":"uint256","name":"wad","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"live","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"rely","inputs":[{"type":"address","name":"usr","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract VatLike"}],"name":"vat","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"wards","inputs":[{"type":"address","name":"","internalType":"address"}]}]

Contract Creation Code

Verify & Publish 
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Deployed ByteCode

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