Contract 0xa2732f6cbbd6...79a8ecdd6cdb

Utility

0xa2732f6cbbd6...79a8ecdd6cdb

FrontierContract #5,125Exact Bytecode MatchEdit this contract

Deployed December 14, 2015 (10 years ago)Block 688,553

The owned base contract, with owner renamed author

Frontier EraVerified Source

Context

Frontier and Homestead era deployment.

Key Facts

Deployer

0x68ec81...80074a

Deployment Block

688,553

Deployment Date

Dec 14, 2015, 02:59 AM

Code Size

100.0 B

Gas at Deploy

60,763

Deployment Transaction: 0x6f3c751c462c6a52...7df6ba8c315d8e6e

Description

A one-variable base contract: it records whoever deployed it and offers a modifier that lets a derived contract restrict a function to that address. It is the owned contract published alongside Congress at 0x66c5bc47, with the stored address renamed from owner to author, which moves its generated getter from owner() to author() and accounts for all four bytes that differ. Deployed on its own rather than inherited, so the modifier it defines is never used and contributes nothing to the code. The contract kept its own name: owned() never reaches the dispatcher, so it is still the constructor.

Source Verified

Exact bytecode match(100 bytes)

Compiler: v0.2.0+

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Heuristic Analysis

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

Detected Type: Utility

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

Opcodes100

Unique Opcodes39

Jump Instructions3

Storage Operations3

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 owned {
        address public author;

        function owned() {
                author = msg.sender;
        }

        modifier onlyOwner {
                if (msg.sender != author) throw;
                _
        }
}

External Links

Etherscan Verified Source (if any)

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