Target

Experimental

0x9e0ae8ffd946...0eecadc9428e

FrontierContract #1,192Exact Bytecode MatchEdit this contract

Deployed September 17, 2015 (10 years ago)Block 247,409

Target contract.

Frontier EraVerified Source

Historical Significance

Target is the storage substrate underneath three different proxy contracts in Bertani's September 17 experimental cluster. Studying the bytecode here alongside the proxies gives a complete picture of how early Solidity developers built layered contract architectures: a bare storage cell, with multiple frontends that forwarded calls into it. This pattern foreshadows the proxy/implementation split that became EIP-1967 and OpenZeppelin upgradable proxies years later.

Context

Deployed seven weeks after Ethereum mainnet launch (July 30, 2015), during the Frontier era. Solidity v0.1.1 was the current compiler. Bertani was experimenting with cross-contract call patterns, building forwarding chains and access control structures that would later become standard idioms.

Key Facts

Deployer

0x0047a8...884de8

Deployment Block

247,409

Deployment Date

Sep 17, 2015, 10:50 AM

Code Size

76.0 B

Gas at Deploy

37,562

Transactions by Year

20154

Deployment Transaction: 0x65e0cc7171e36882...e32bec4903117069

Description

Verified with soljson-v0.1.1+commit.6ff4cd6 and optimizer ON.

Source Verified

SolidityExact bytecode match(76 bytes)

Compiler: soljson

View verification proof

Backfilled from awesome-ethereum-proofs PR #49.

Historian Categories

Experimental

Heuristic Analysis

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

Detected Type: Experimental

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

Opcodes76

Unique Opcodes34

Jump Instructions5

Storage Operations2

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

Verified on Etherscan (similar match)

View Verification Proof

Show source code (Solidity)

contract Target {
    uint stored;

    function set(uint256 x) {
        stored = x;
    }

    function get() returns (uint) {
        return stored;
    }
}