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Gas: 1.1 GWei

Contract

0xdBF3Ea6F5beE45c02255B2c26a16F300502F68da

Overview

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BZZ on xDai (BZZ) (@$0.2685)
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Approve385760132025-02-15 14:05:3527 mins ago1739628335IN
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0 xDAI0.000061731.2
Approve385760132025-02-15 14:05:3527 mins ago1739628335IN
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0 xDAI0.000061731.2
Approve385742332025-02-15 11:31:453 hrs ago1739619105IN
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0 xDAI0.000061711.2
Approve385738602025-02-15 11:00:053 hrs ago1739617205IN
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0 xDAI0.000061711.20000039
Approve385731872025-02-15 10:01:554 hrs ago1739613715IN
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0 xDAI0.000061711.2
Approve385731672025-02-15 10:00:054 hrs ago1739613605IN
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0 xDAI0.000061711.2
Approve385722632025-02-15 8:42:305 hrs ago1739608950IN
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0 xDAI0.000061711.2
Transfer385718852025-02-15 8:10:106 hrs ago1739607010IN
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0 xDAI00.00001299
Approve385716002025-02-15 7:45:006 hrs ago1739605500IN
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0 xDAI00.00000002
Approve385715882025-02-15 7:44:006 hrs ago1739605440IN
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0 xDAI00.00000002
Approve385715772025-02-15 7:43:006 hrs ago1739605380IN
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Approve385715652025-02-15 7:42:006 hrs ago1739605320IN
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0 xDAI00.00000003
Approve385715542025-02-15 7:41:006 hrs ago1739605260IN
Gnosis: BZZ Token
0 xDAI00.00000003
Approve385715432025-02-15 7:40:006 hrs ago1739605200IN
Gnosis: BZZ Token
0 xDAI00.00000011
Approve385715312025-02-15 7:39:006 hrs ago1739605140IN
Gnosis: BZZ Token
0 xDAI00.00000018
Approve385715192025-02-15 7:38:006 hrs ago1739605080IN
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0 xDAI00.00000073
Approve385715092025-02-15 7:37:106 hrs ago1739605030IN
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0 xDAI00.00000077
Approve385714952025-02-15 7:36:006 hrs ago1739604960IN
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0 xDAI00.00000259
Approve385714832025-02-15 7:35:006 hrs ago1739604900IN
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0 xDAI00.00000583
Approve385714722025-02-15 7:34:006 hrs ago1739604840IN
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0 xDAI00.00001199
Approve385714612025-02-15 7:33:006 hrs ago1739604780IN
Gnosis: BZZ Token
0 xDAI00.00001319
Approve385714492025-02-15 7:32:007 hrs ago1739604720IN
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0 xDAI00.00001583
Approve385714402025-02-15 7:31:057 hrs ago1739604665IN
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0 xDAI00.00001583
Approve385714282025-02-15 7:30:057 hrs ago1739604605IN
Gnosis: BZZ Token
0 xDAI00.00001583
Approve385714162025-02-15 7:29:007 hrs ago1739604540IN
Gnosis: BZZ Token
0 xDAI00.00001583
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Latest 1 internal transaction

Parent Transaction Hash Block From To
165145062021-06-11 7:13:201345 days ago1623395600  Contract Creation0 xDAI
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x21a42669...23D67509d
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
TokenProxy

Compiler Version
v0.4.24+commit.e67f0147

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, Unlicense license
/**
 *Submitted for verification at gnosisscan.io on 2023-01-09
*/

pragma solidity 0.4.24;

/**
 * @title Proxy
 * @dev Gives the possibility to delegate any call to a foreign implementation.
 */
contract Proxy {
    /**
    * @dev Tells the address of the implementation where every call will be delegated.
    * @return address of the implementation to which it will be delegated
    */
    /* solcov ignore next */
    function implementation() public view returns (address);

    /**
    * @dev Fallback function allowing to perform a delegatecall to the given implementation.
    * This function will return whatever the implementation call returns
    */
    function() public payable {
        // solhint-disable-previous-line no-complex-fallback
        address _impl = implementation();
        require(_impl != address(0));
        assembly {
            /*
                0x40 is the "free memory slot", meaning a pointer to next slot of empty memory. mload(0x40)
                loads the data in the free memory slot, so `ptr` is a pointer to the next slot of empty
                memory. It's needed because we're going to write the return data of delegatecall to the
                free memory slot.
            */
            let ptr := mload(0x40)
            /*
                `calldatacopy` is copy calldatasize bytes from calldata
                First argument is the destination to which data is copied(ptr)
                Second argument specifies the start position of the copied data.
                    Since calldata is sort of its own unique location in memory,
                    0 doesn't refer to 0 in memory or 0 in storage - it just refers to the zeroth byte of calldata.
                    That's always going to be the zeroth byte of the function selector.
                Third argument, calldatasize, specifies how much data will be copied.
                    calldata is naturally calldatasize bytes long (same thing as msg.data.length)
            */
            calldatacopy(ptr, 0, calldatasize)
            /*
                delegatecall params explained:
                gas: the amount of gas to provide for the call. `gas` is an Opcode that gives
                    us the amount of gas still available to execution

                _impl: address of the contract to delegate to

                ptr: to pass copied data

                calldatasize: loads the size of `bytes memory data`, same as msg.data.length

                0, 0: These are for the `out` and `outsize` params. Because the output could be dynamic,
                        these are set to 0, 0 so the output data will not be written to memory. The output
                        data will be read using `returndatasize` and `returdatacopy` instead.

                result: This will be 0 if the call fails and 1 if it succeeds
            */
            let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
            /*

            */
            /*
                ptr current points to the value stored at 0x40,
                because we assigned it like ptr := mload(0x40).
                Because we use 0x40 as a free memory pointer,
                we want to make sure that the next time we want to allocate memory,
                we aren't overwriting anything important.
                So, by adding ptr and returndatasize,
                we get a memory location beyond the end of the data we will be copying to ptr.
                We place this in at 0x40, and any reads from 0x40 will now read from free memory
            */
            mstore(0x40, add(ptr, returndatasize))
            /*
                `returndatacopy` is an Opcode that copies the last return data to a slot. `ptr` is the
                    slot it will copy to, 0 means copy from the beginning of the return data, and size is
                    the amount of data to copy.
                `returndatasize` is an Opcode that gives us the size of the last return data. In this case, that is the size of the data returned from delegatecall
            */
            returndatacopy(ptr, 0, returndatasize)

            /*
                if `result` is 0, revert.
                if `result` is 1, return `size` amount of data from `ptr`. This is the data that was
                copied to `ptr` from the delegatecall return data
            */
            switch result
                case 0 {
                    revert(ptr, returndatasize)
                }
                default {
                    return(ptr, returndatasize)
                }
        }
    }
}

interface IPermittableTokenVersion {
    function version() external pure returns (string);
}

/**
* @title TokenProxy
* @dev Helps to reduces the size of the deployed bytecode for automatically created tokens, by using a proxy contract.
*/
contract TokenProxy is Proxy {
    // storage layout is copied from PermittableToken.sol
    string internal name;
    string internal symbol;
    uint8 internal decimals;
    mapping(address => uint256) internal balances;
    uint256 internal totalSupply;
    mapping(address => mapping(address => uint256)) internal allowed;
    address internal owner;
    bool internal mintingFinished;
    address internal bridgeContractAddr;
    // string public constant version = "1";
    bytes32 internal DOMAIN_SEPARATOR;
    // bytes32 public constant PERMIT_TYPEHASH = 0xea2aa0a1be11a07ed86d755c93467f4f82362b452371d1ba94d1715123511acb;
    mapping(address => uint256) internal nonces;
    mapping(address => mapping(address => uint256)) internal expirations;

    /**
    * @dev Creates a non-upgradeable token proxy for PermitableToken.sol, initializes its eternalStorage.
    * @param _tokenImage address of the token image used for mirrowing all functions.
    * @param _name token name.
    * @param _symbol token symbol.
    * @param _decimals token decimals.
    * @param _chainId chain id for current network.
    */
    constructor(address _tokenImage, string memory _name, string memory _symbol, uint8 _decimals, uint256 _chainId)
        public
    {
        string memory version = IPermittableTokenVersion(_tokenImage).version();

        assembly {
            // EIP 1967
            // bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)
            sstore(0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc, _tokenImage)
        }
        name = _name;
        symbol = _symbol;
        decimals = _decimals;
        owner = msg.sender; // msg.sender == HomeMultiAMBErc20ToErc677 mediator
        bridgeContractAddr = msg.sender;
        DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                keccak256(bytes(_name)),
                keccak256(bytes(version)),
                _chainId,
                address(this)
            )
        );
    }

    /**
    * @dev Retrieves the implementation contract address, mirrowed token image.
    * @return token image address.
    */
    function implementation() public view returns (address impl) {
        assembly {
            impl := sload(0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc)
        }
    }
}

Contract Security Audit

Contract ABI

[{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"impl","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_tokenImage","type":"address"},{"name":"_name","type":"string"},{"name":"_symbol","type":"string"},{"name":"_decimals","type":"uint8"},{"name":"_chainId","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"}]

Deployed Bytecode

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

Deployed Bytecode Sourcemap

4887:2504:0:-;;;;;;;;;;;;;;;;;;;;715:13;731:16;:14;:16::i;:::-;715:32;-1:-1:-1;766:19:0;;;;;758:28;;;;;;1224:4;1218:11;2005:12;2002:1;1997:3;1984:34;2936:1;2933;2919:12;2914:3;2907:5;2902:3;2889:49;3626:14;3621:3;3617:24;3611:4;3604:38;4136:14;4133:1;4128:3;4113:38;4418:6;4442:76;;;;4579:14;4574:3;4567:27;4442:76;4484:14;4479:3;4472:27;7193:195;;8:9:-1;5:2;;;30:1;27;20:12;5:2;7193:195:0;;;;;;;;;;;;;;;;;;;;;;;;7303:66;7297:73;;7274:107::o

Swarm Source

bzzr://aa9e57d69a87d505ef92ae24ac9bead296073ec94235380eb982d587ab7f4315

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