Hash

Unclassified

0x001ba9091f44...b8ec6553e71a

ByzantiumExact Bytecode MatchEdit this contract

Bytecode verified via sibling

This contract shares identical runtime bytecode with HashStore (0xf371377b...) which has been verified through compiler archaeology.

Deployed December 7, 2018 (7 years ago)Block 6,842,939

Trivial one-slot hash-holder — single `getHash()` view function returning a stored uint256. Cluster of 327 identical deployments.

Byzantium EraVerified Source

Key Facts

Deployer

0x0099eb...14caa8

Deployment Block

6,842,939

Deployment Date

Dec 7, 2018, 01:51 PM

Code Size

151.0 B

Gas at Deploy

116,688

Deployment Transaction: 0x85eac3e3b1fb796c...009f6fdbb33883dc

Description

One of 327 identical trivial hash-storage contracts. Single internal uint256 storedHash slot with one view function getHash() returning it. No mutations, no other functions. Compiled with solc 0.4.18+commit.9cf6e910 optimizer ON runs=200. Exact code match; only trailing 34-byte Swarm metadata differs.

Source Verified

SolidityExact bytecode match(151 bytes)

Compiler: 0.4.18+

View verification proof

Exact match on 117 code bytes with solc 0.4.18 optimizer ON runs=200. Only trailing 34-byte Swarm metadata differs (source formatting delta). Cluster: 328+ identical-runtime deployments. Also Etherscan-verified with EthereumHistory attribution.

Heuristic Analysis

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

Detected Type: Unclassified

Byzantium Era

First Metropolis hard fork. Added zk-SNARK precompiles, REVERT opcode, and staticcall.

Block span: 4,370,000 — 7,279,999

October 16, 2017 — February 28, 2019

Bytecode Overview

Opcodes151

Unique Opcodes69

Jump Instructions7

Storage Operations2

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

View Verification Proof

Show source code (Solidity)

// Submitted by EthereumHistory (ethereumhistory.com)
pragma solidity ^0.4.0;

contract HashStore {
    uint256 hash;

    function getHash() constant returns (uint256) {
        return hash;
    }
}

External Links

Etherscan Verified Source (if any)

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