0x7beb...46d9

Unclassified

0x7bebae89fbd1...4f09ef7746d9

FrontierContract #2,457Exact Bytecode MatchEdit this contract

Deployed October 23, 2015 (11 years ago)Block 426,936

First Oraclize proxy, 23 Oct 2015: forwards every call to 0xaf72e3ce, exposes cb_address, owner can repoint it.

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

426,936

Deployment Date

Oct 23, 2015, 11:04 AM

Code Size

648.0 B

Gas at Deploy

209,606

Transactions by Year

20151

Deployment Transaction: 0xb9406be60b27dd4e...1b61afc1f8827189

Description

First Oraclize proxy, 23 Oct 2015: forwards every call to 0xaf72e3ce, exposes cb_address, owner can repoint it.

Source Verified

SolidityExact bytecode match(648 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

Opcodes648

Unique Opcodes105

Jump Instructions15

Storage Operations11

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 Oraclize {

    function Oraclize() {
        addr = 0xaf72e3ce56131a9c1a6831b2f0789eb07c962292;
    }
    address public cb_address = 0x26588a9301b0428d95e6fc3a5024fce8bec12d51;

    function changeAddr(address newaddr) {
        if (msg.sender != owner) throw;
        addr = newaddr;
    }

    function() {
        addr.call(msg.data);
    }
    address addr;
    address owner = 0x0047a8033cc6d6ca2ed5044674fd421f44884de8;
}