0x2f80...027d

Experimental

0x2f807075fecd...86525291027d

FrontierContract #6,311Exact Bytecode MatchEdit this contract

Deployed January 10, 2016 (10 years ago)Block 827,096

The ethereum.org tutorial greeter, redeployed verbatim: a stored-greeting greet() over a mortal (owner/kill) base. One of the most-copied early Solidity contrac

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 - among 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 self-destructed via kill().

Key Facts

Deployer

0x91dcd4...c6a8df

Deployment Block

827,096

Deployment Date

Jan 10, 2016, 02:01 PM

Code Size

638.0 B

Gas at Deploy

157,463

Deployment Transaction: 0x68835cf263e54193...811952c38d26925a

Source Verified

SolidityExact bytecode match(638 bytes)

Compiler: soljson

View verification proof

Exact byte-for-byte match of the on-chain runtime (366 bytes); compiled with soljson v0.1.5+commit.23865e39, optimizer ON (runtime SHA-256 405323340e37a215b653b4048feae02c41756a4e065f6efc24d6bb27803af477). Canonical ethereum.org greeter; one of 68 identical-runtime Frontier deployments. 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

Opcodes638

Unique Opcodes75

Jump Instructions24

Storage Operations13

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

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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