greeter

Experimental

0x02bf6b982c2a...3162ae3842f6

FrontierContract #7,010Exact Bytecode MatchEdit this contract

Deployed January 24, 2016 (10 years ago)Block 896,276

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

Frontier 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

0x00204d...418ab8

Deployment Block

896,276

Deployment Date

Jan 24, 2016, 08:22 AM

Code Size

908.0 B

Gas at Deploy

221,827

Deployment Transaction: 0x05d593bc8bdbebef...c7d21c2f88ac6285

Source Verified

SolidityExact bytecode match(908 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

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

Opcodes908

Unique Opcodes80

Jump Instructions36

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)

Related contracts

Digix

Same era

The earliest known attempt to deploy a smart contract on Ethereum mainnet (Aug 7 2015, thanateros.eth). Ran out of gas before code deposit; creation bytecode reconstructed exactly.

0x9a049f...a977a0August 7, 2015

Test

Same era

The earliest known Ethereum contract with executable runtime code. A single function go() that returns the string "eth", compiled with the first publicly available Solidity compiler (v0.1.1).

0x651629...8c21faAugust 7, 2015

Greeter

Same era

An early Ethereum contract that returns the string “Hello World!” when called.

0xfea8c4...8b08ebAugust 7, 2015

Greeter

Same era

One of six HelloWorld Greeter deployments by Linagee on Ethereum Frontier Day 1 - same source, same compiler, greeting: 'Hello World!'

0xd464e6...dc98f3August 7, 2015

Greeter

Same era

One of six HelloWorld Greeter deployments by Linagee on Ethereum Frontier Day 1 - same source, same compiler, greeting: 'Hello World!'

0xf91486...63ea50August 7, 2015

Greeter

Same era

One of six HelloWorld Greeter deployments by Linagee on Ethereum Frontier Day 1 - same source, same compiler, greeting: 'Hello World!'

0x3dbdee...5658a9August 7, 2015