DoStuff

Unclassified

0x8a2d3d1ae7dd...11fb8c5b77cc

ByzantiumExact Bytecode MatchEdit this contract

Deployed July 11, 2018 (8 years ago)Block 5,945,549

Gas-burn contract with a single `doStuff()` function that runs an empty 1000-iteration for-loop. Cluster of 15 identical deployments — likely gas-benchmarking test contract.

Byzantium EraVerified Source

Key Facts

Deployer

0xb7c9a7...c9e254

Deployment Block

5,945,549

Deployment Date

Jul 11, 2018, 03:53 PM

Code Size

162.0 B

Gas at Deploy

95,923

Deployment Transaction: 0x71e4d5afb88268bb...d38c1d09e805eebf

Description

One of 15 identical gas-benchmarking contracts. Exposes a single doStuff() function that runs an empty for-loop from 0 to 999 — no state changes, no external calls, just an incrementing local counter. Consistent with a gas-measurement or DoS-baseline test artifact. Compiled with solc 0.4.24+commit.e67f0147 optimizer OFF. Exact code match; only trailing 34-byte Swarm metadata differs.

Source Verified

SolidityExact bytecode match(162 bytes)

Compiler: 0.4.24+

Exact code match on 128 code bytes with solc 0.4.24 opt OFF. Only trailing 34-byte Swarm metadata differs. 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

Opcodes162

Unique Opcodes67

Jump Instructions12

Storage Operations0

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

Show source code (Solidity)

// Submitted by EthereumHistory (ethereumhistory.com)
pragma solidity ^0.4.24;

contract DoStuff {
    function doStuff() public {
        for (uint i = 0; i < 1000; i++) {
        }
    }
}

External Links

Etherscan Verified Source (if any)

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