0xb679...5c60

Experimental

0xb679161cc4f1...1e022aa65c60

HomesteadExact Bytecode MatchEdit this contract

Deployed July 18, 2016 (10 years ago)Block 1,905,465

The classic Frontier 'greeter' (Jan 2016): a mortal-derived contract storing a constructor-set greeting returned by greet(), with an owner-only kill(). One of 6

Homestead EraVerified Source

Historical Significance

The greeter from the original Frontier release walkthrough, the first contract many early developers ever deployed.

Context

Compiled with soljson-v0.2.0 (optimizer OFF); exact match of the 542-byte runtime. One of 67 byte-identical deployments.

Key Facts

Deployer

0xaa34c9...a275d8

Deployment Block

1,905,465

Deployment Date

Jul 18, 2016, 03:46 AM

Code Size

542.0 B

Transactions by Year

20161

Deployment Transaction: 0x4ac54ce682424146...7c876d175ad0bb52

Source Verified

SolidityExact bytecode match(542 bytes)

Compiler: soljson

View verification proof

Exact runtime bytecode match. Runtime: 542 bytes (byte-for-byte), compiled with soljson-v0.2.0+commit.4dc2445e, optimizer OFF. The on-chain creation (908 bytes) appends the ABI-encoded greeting constructor string; the 542-byte runtime is the shared cluster invariant.

Historian Categories

Experimental

Heuristic Analysis

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

Detected Type: Experimental

Homestead Era

The first planned hard fork. Removed the canary contract, adjusted gas costs.

Block span: 1,150,000 — 1,919,999

March 14, 2016 — July 20, 2016

Bytecode Overview

Opcodes542

Unique Opcodes58

Jump Instructions20

Storage Operations6

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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