greeter

Experimental

0x328e48b6cd2b...eba09b2a4a9f

FrontierContract #2,949Exact Bytecode MatchEdit this contract

Deployed October 28, 2015 (10 years ago)Block 450,376

The canonical ethereum.org 'Hello World' greeter (mortal + greeter): greet() returns a stored greeting; kill() selfdestructs to the owner. One of 68 identical-r

Frontier EraVerified Source

Historical Significance

The reference 'Hello World' contract from ethereum.org's early documentation, deployed at least 68 times in the Frontier era - one of the most-copied early Solidity contracts.

Context

Frontier-era greeter from the ethereum.org tutorials. 41 of the 68 identical-runtime deployments remain live on-chain; the rest have self-destructed via kill().

Key Facts

Deployer

0x5b92e0...3ab99a

Deployment Block

450,376

Deployment Date

Oct 28, 2015, 01:02 AM

Code Size

670.0 B

Gas at Deploy

174,002

Deployment Transaction: 0xfa1080363fb249bc...3a256c9132c222d6

Source Verified

SolidityExact bytecode match(670 bytes)

Compiler: soljson

View verification proof

Exact byte-for-byte match of the on-chain runtime (366 bytes). The reconstructed source compiled with soljson v0.1.5+commit.23865e39, optimizer ON, reproduces the runtime exactly (SHA-256 405323340e37a215b653b4048feae02c41756a4e065f6efc24d6bb27803af477). The canonical ethereum.org 'Hello World' greeter (mortal base + greeter). One of 68 identical-runtime Frontier deployments; verify.js in the proof folder reproduces the match. Proof: https://github.com/cartoonitunes/awesome-ethereum-proofs/tree/main/proofs/greeter-0x328e48b6

Historian Categories

Experimental

Heuristic Analysis

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

Detected Type: Experimental

Contains SELFDESTRUCT opcode

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

Opcodes670

Unique Opcodes87

Jump Instructions27

Storage Operations14

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

Verified on Etherscan

View Verification Proof

Show source code (Solidity)

contract mortal {
    address owner;
    function mortal() { owner = msg.sender; }
    function kill() { if (msg.sender == owner) suicide(owner); }
}
contract greeter is mortal {
    string greeting;
    function greeter(string _greeting) { greeting = _greeting; }
    function greet() constant returns (string) { return greeting; }
}

External Links

Etherscan Verified Source (if any)

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