SimpleStorage

Utility

0x7aa73b556c0d...4930e946473b

FrontierContract #1,195Exact Bytecode MatchEdit this contract

Deployed September 17, 2015 (11 years ago)Block 247,796

The storage example rewired to send a wei and return a constant

Frontier EraVerified Source

Historical Significance

The contract the Solidity documentation opens with, and for most readers of the period the first one they compiled. It teaches the one thing the EVM does that a script does not: a number written here survives the transaction that wrote it, is readable by anyone, and costs real money to change.

Context

Deployed in September 2015 on the Frontier chain.

Key Facts

Deployer

0x0047a8...884de8

Deployment Block

247,796

Deployment Date

Sep 17, 2015, 12:37 PM

Code Size

156.0 B

Gas at Deploy

71,384

Transactions by Year

20153

Deployment Transaction: 0x22c1253afd203afb...757aec682796b05d

Description

It keeps the set and get names of the Solidity documentation's storage example and nothing else of its behaviour. The stored slot holds a hardcoded address rather than a number, set ignores its argument entirely and sends one wei to that address, and get returns the constant 255 without touching storage. The address it pays is another storage example deployed by the same account, so the pair was built to watch value move between two contracts.

Source Verified

Exact bytecode match(156 bytes)

Compiler: v0.1.5+

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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

Opcodes156

Unique Opcodes64

Jump Instructions5

Storage Operations3

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

Verified on Etherscan

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Show source code (Solidity)

// Submitted by EthereumHistory (ethereumhistory.com)
contract SimpleStorage {
    address a = 0x9e0ae8ffd946d12d1d393c6f3bca0eecadc9428e;
    function set(uint x) {
        a.send(1);
    }
    function get() constant returns (uint) {
        return 255;
    }
}