0x404b...1e40

Unclassified

0x404bf6720abc...a240ef651e40

FrontierContract #2,645Exact Bytecode MatchEdit this contract

Deployed October 24, 2015 (11 years ago)Block 433,797

Revised Oraclize/ShapeShift test from October 2015: requests an ETH-to-BTC deposit address through the oracle when update() is called.

Frontier EraVerified Source

Historical Significance

Shows the Oraclize resolver arrangement taking its final shape in October 2015. An early form of Oraclize's StopLoss example. Source reconstructed from bytecode; exact runtime and creation match, verified on Etherscan and Sourcify.

Context

Deployed on 24 October 2015 by the Oraclize operator account, a few hours after the first version. It reads the Oraclize address from the resolver at 0x1d11e5eae3112dbd44f99266872ff1d07c77dce8, the address Oraclize's December 2015 API release also used.

Key Facts

Deployer

0x0047a8...884de8

Deployment Block

433,797

Deployment Date

Oct 24, 2015, 06:35 PM

Code Size

2.2 KB

Gas at Deploy

579,480

Transactions by Year

20153

Deployment Transaction: 0x3396b73ef5f64aca...6f2687cf745261a0

Description

Same ShapeShift request as the earlier test: update() pays getPrice("URL") to the Oraclize connector and asks it to POST {"pair": "eth_btc", "amount": "0.2", "withdrawal": "1AAcCo21EUc1jbocjssSQDzLna9Vem2UN5"} to ShapeShift's sendamount endpoint. __callback() checks the sender against cb_address(), parses the returned hex deposit address and stores it in shapeshift_address. This revision holds the resolver address in storage and has an empty constructor, so nothing is sent until update() is called. kill() self-destructs to the caller.

Source Verified

SolidityExact bytecode match(2,238 bytes)

Compiler: v0.1.6+

View verification proof

Heuristic Analysis

The following characteristics were detected through bytecode analysis and may not be accurate.

Detected Type: Unclassified

Contains SELFDESTRUCT opcode

Frontier Era

The initial release of Ethereum. A bare-bones implementation for technical users.

Block span: 0 — 1,149,999

July 30, 2015 — March 14, 2016

Bytecode Overview

Opcodes2,238

Unique Opcodes136

Jump Instructions65

Storage Operations20

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

View Verification Proof

Show source code (Solidity)

// Submitted by EthereumHistory (ethereumhistory.com)
contract OraclizeI {
    function query(uint _timestamp, string _datasource, string _arg1, string _arg2) returns (bytes32 _id);
    function getPrice(string _datasource) returns (uint _dsprice);
    function cb_address() returns (address _cbAddress);
}
contract OraclizeAddrResolverI {
    function getAddress() returns (address _addr);
}
contract usingOraclize {
    address OAR = 0x1d11e5eae3112dbd44f99266872ff1d07c77dce8;
    OraclizeI oraclize = OraclizeI(OraclizeAddrResolverI(OAR).getAddress());
}

contract StopLoss is usingOraclize {
    address public shapeshift_address;

    function StopLoss() {
    }

    function __callback(bytes32 myid, string result) {
        if (msg.sender != oraclize.cb_address()) throw;
        bytes memory tmp = bytes(result);
        uint160 ishapeshift = 0;
        uint160 b1;
        uint160 b2;
        for (uint i=2; i<2+2*20; i+=2){
            ishapeshift *= 256;
            b1 = uint160(tmp[i]);
            b2 = uint160(tmp[i+1]);
            if ((b1 >= 97)&&(b1 <= 102)) b1 -= 87;
            else if ((b1 >= 48)&&(b1 <= 57)) b1 -= 48;
            if ((b2 >= 97)&&(b2 <= 102)) b2 -= 87;
            else if ((b2 >= 48)&&(b2 <= 57)) b2 -= 48;
            ishapeshift += (b1*16+b2);
        }
        shapeshift_address = address(ishapeshift);
    }

    function update() {
        address(oraclize).send(oraclize.getPrice("URL"));
        oraclize.query(0, "URL", "json(https://shapeshift.io/sendamount).success.deposit", '{"pair": "eth_btc", "amount": "0.2", "withdrawal": "1AAcCo21EUc1jbocjssSQDzLna9Vem2UN5"}');
    }

    function kill(){
        suicide(msg.sender);
    }
}