Contract 0x8397259c983751daf40400790063935a11afa28a

Polygon 
 

Contract Overview

Polygon: Fx Child
Balance:
0 MATIC
MATIC Value:
$0.00
Token:
 

 Latest 3 from a total of 3 transactions

Txn Hash
Method
Block
From
To
 Value [Txn Fee]
0xfdfdc749828ee03776988e32ed17d55913f0553cb75bd1838f362bb64973e6e0On State Receive246404222022-02-07 3:09:16416 days 11 hrs ago0xcf2a39493f5193e8ee0d0e8dbf78a92a4ef293c4 IN  Polygon: Fx Child0 MATIC0.000879585 35
0x0bb212b3f0930ab0e5493f587d56a34e6233d9985c335deaf0db03bfaf28e761Set Fx Root97081662021-01-17 14:55:32801 days 23 hrs agoPolygon: Old Mapper Deployer 2 IN  Polygon: Fx Child0 MATIC0.0000434011
0xa8b98cdc3b41b601c137605a5ebd6440dd7aefc19c16c40982a46e3fdd1ec0bf0x6080604097080912021-01-17 14:52:54801 days 23 hrs agoPolygon: Old Mapper Deployer 2 IN  Create: FxChild0 MATIC0.0036548310
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Contract Source Code Verified (Exact Match)

Contract Name:
FxChild
Compiler Version
v0.7.3+commit.9bfce1f6
Optimization Enabled:
No with 200 runs
Other Settings:
default evmVersion, None license

Contract Source Code (Solidity)

interface IStateReceiver    - function onStateReceive(uint256 state ... interface IFxMessageProcessor    - function processMessageFromRoot(uint2 ...  contract FxChild is IStateReceiver *    - function setFxRoot(address _fxRoot)    - function onStateReceive(uint256 state ...
SimilarSol2UmlNEWSubmit Audit
/**
 *Submitted for verification at polygonscan.com on 2021-06-30
*/

// SPDX-License-Identifier: MIT
pragma solidity 0.7.3;

// IStateReceiver represents interface to receive state
interface IStateReceiver {
    function onStateReceive(uint256 stateId, bytes calldata data) external;
}

// IFxMessageProcessor represents interface to process message
interface IFxMessageProcessor {
    function processMessageFromRoot(uint256 stateId, address rootMessageSender, bytes calldata data) external;
}

/**
 * @title FxChild child contract for state receiver
 */
contract FxChild is IStateReceiver {
    address public fxRoot;

    event NewFxMessage(address rootMessageSender, address receiver, bytes data);

    function setFxRoot(address _fxRoot) public {
        require(fxRoot == address(0x0));
        fxRoot = _fxRoot;
    }

    function onStateReceive(uint256 stateId, bytes calldata _data) external override {
        require(msg.sender == address(0x0000000000000000000000000000000000001001), "Invalid sender");
        (address rootMessageSender, address receiver, bytes memory data) = abi.decode(_data, (address, address, bytes));
        emit NewFxMessage(rootMessageSender, receiver, data);
        IFxMessageProcessor(receiver).processMessageFromRoot(stateId, rootMessageSender, data);
    }
}

Contract Security Audit

Contract ABI

[{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"rootMessageSender","type":"address"},{"indexed":false,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"NewFxMessage","type":"event"},{"inputs":[],"name":"fxRoot","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"stateId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"onStateReceive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_fxRoot","type":"address"}],"name":"setFxRoot","outputs":[],"stateMutability":"nonpayable","type":"function"}]

Contract Creation Code

Decompile ByteCode Switch to Opcodes View
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