SimpleStorage

Utility

0x8966db77526f...344efee65f97

FrontierContract #3,776Exact Bytecode MatchEdit this contract

Deployed November 11, 2015 (10 years ago)Block 525,692

The Solidity documentation storage example, given a public variable and an initialising constructor

Frontier EraVerified Source

Context

Deployed in November 2015 during the Frontier period. SimpleStorage was the first contract most people compiled, and copies of it with small edits are scattered across the early chain.

Key Facts

Deployer

0x4a34a3...f5d3c1

Deployment Block

525,692

Deployment Date

Nov 11, 2015, 08:51 PM

Code Size

117.0 B

Gas at Deploy

49,141

Deployment Transaction: 0xd35f3e3e0fe16c00...4d38bc23e42744ba

Description

A single unsigned integer held in storage, with set to write it and get to read it back. The variable is declared public, so the compiler also emits a storedData accessor, and the constructor takes an initial value that is written into the slot at deployment. It is the SimpleStorage example that opens the Solidity documentation, edited in those two ways by whoever deployed it. This deployment was compiled with the optimiser enabled.

Source Verified

Exact bytecode match(117 bytes)

Compiler: v0.1.6+

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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

Opcodes117

Unique Opcodes43

Jump Instructions7

Storage Operations4

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 {
    uint public storedData;

    function SimpleStorage(uint initVal) {
        storedData = initVal;
    }

    function set(uint x) {
        storedData = x;
    }

    function get() constant returns (uint retVal) {
        return storedData;
    }
}