A Greeter with the message 'Ethereum will change the world smarter' - deployed Aug 8, 2015 by a developer connected to the Tokyo Smart Contract meetup.
Historical Significance
Documents a connection between two Frontier-era developers at the Tokyo Smart Contract meetup who both deployed Greeter contracts to demonstrate Ethereum in August 2015. The greeting captures the optimism of Ethereum's earliest community.
Key Facts
Description
Deployed at block 52,444 on August 8, 2015 by 0xd12e0ECc. Minutes earlier (block 52,369), the deployer sent 3 ETH to 0x4b0C6F0297 - the developer who deployed the famous Japan meetup Greeter at block 52,918 with the greeting 'Hello world from 0804 Smart Contract Japan meeting!'. The two appear to have been at the same Tokyo meetup on August 4, 2015, and both deployed Greeter contracts on Ethereum's first days as a demonstration of the platform.
Source Verified
Creation TX (820 bytes) = compiled Greeter base (692 bytes) + ABI-encoded 'Ethereum will change the world smarter' (128 bytes). soljson v0.1.1+commit.6ff4cd6a, optimizer OFF.
Heuristic Analysis
The following characteristics were detected through bytecode analysis and may not be accurate.
Frontier Era
The initial release of Ethereum. A bare-bones implementation for technical users.
Bytecode Overview
Verified Source Available
Source verified through compiler archaeology and exact bytecode matching.
View Verification ProofShow 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;
}
}