OraclizeAddrResolver

Unclassified

0xed51ae5e42bb...14c149a32adc

FrontierContract #2,594Exact Bytecode MatchEdit this contract

Deployed October 24, 2015 (11 years ago)Block 433,051

Oraclize's first address resolver, 24 Oct 2015. Points to 0xaf72e3ce, but getAddress() always returns 0x0.

Frontier EraVerified Source

Historical Significance

Part of the earliest onchain history of Oraclize, the first widely used oracle service on Ethereum. Source reconstructed from bytecode; exact runtime and creation match with solc v0.1.6, verified on Etherscan and Sourcify.

Context

Deployed by the Oraclize operator account (0x0047a8033cc6d6ca2ed5044674fd421f44884de8) between 22 and 24 October 2015, while Thomas Bertani was building the Oraclize service onchain, weeks before Oraclize published its API in December 2015. Over those three days the connector went from a query() that only emitted a log event, through forwarding proxies and address resolvers, to a connector that charged per query and let callers withdraw their balance.

Key Facts

Deployer

0x0047a8...884de8

Deployment Block

433,051

Deployment Date

Oct 24, 2015, 03:22 PM

Code Size

552.0 B

Gas at Deploy

176,489

Deployment Transaction: 0xc6f878ae23fd7eaf...ccdcae0342e70833

Description

Oraclize's first address resolver, 24 Oct 2015. Points to 0xaf72e3ce, but getAddress() always returns 0x0.

Source Verified

SolidityExact bytecode match(552 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

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

Opcodes552

Unique Opcodes89

Jump Instructions17

Storage Operations8

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

Verified on Etherscan

View Verification Proof

Show source code (Solidity)

// Submitted by EthereumHistory (ethereumhistory.com)
contract OraclizeAddrResolver {
    function OraclizeAddrResolver(){
        addr = 0xaf72e3ce56131a9c1a6831b2f0789eb07c962292;
    }
    address public addr;
    function getAddress() returns (address oaddr){
        return oaddr;
    }
    function changeAddr(address newaddr){
        if (msg.sender != owner) throw;
        addr = newaddr;
    }
    address owner = 0x0047a8033cc6d6ca2ed5044674fd421f44884de8;
}