Contract Address Details
contract
proxy
token

0xb0C5f3100A4d9d9532a4CfD68c55F1AE8da987Eb

Token
DAOhaus Token from Ethereum (HAUS)
Creator
0xf6a780–2e268d at 0x3fbaf7–cd358f
Implementation
0xf8d1677c8a0c961938bf2f9adc3f3cfda759a9d9
Balance
0 xDAI ( )
Tokens
Fetching tokens...
Transactions
Fetching transactions...
Transfers
Fetching transfers...
Gas Used
Fetching gas used...
Last Balance Update
19285561
Contract name:
TokenProxy




Optimization enabled
true
Compiler version
v0.4.24+commit.e67f0147




Optimization runs
200
EVM Version
default




Verified at
2020-09-04 16:26:12.949665Z

Constructor Arguments

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

Arg [0] (address) : 0xf8d1677c8a0c961938bf2f9adc3f3cfda759a9d9
Arg [1] (string) : DAOhaus Token on xDai
Arg [2] (string) : HAUS
Arg [3] (uint8) : 18
Arg [4] (uint256) : 100

              

Contract source code

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 ABI

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

Deployed ByteCode

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