Frontier Era

Tutorial-derived coin contract (Solidity v0.1.1), one of multiple token instances deployed by the same address on Aug 8, 2015.

An early messaging contract on Ethereum, allowing users to send on-chain messages stored by content hash.

An upgraded on-chain messaging contract with per-address message tracking and delete functionality, from the same Frontier developer who built the simpler Messa

A 6-line contract storing a single public string, deployed Day 9 of Ethereum by a prolific early experimenter who shipped 18 contracts in one week.

The Ethereum Foundation's primary treasury wallet - a 4-of-7 multisig written by Gavin Wood, deployed 9 days after mainnet launch. The ancestor of the Parity mu

Coin tutorial stub — mapping getter + empty function returning default bool.

An early Frontier investment contract where users deposit ETH and can withdraw their balance, with an investor counter.

Aug 8 2015 deploy by 0x8674c218 — one of the most prolific contract deployers of Ethereum's first day. Sibling of the verified MessagingContract / Ponzi / Messa

An on-chain messaging contract with per-address tracking and delete functionality, by the same Frontier developer who iterated on messaging across four deployme

The go-ethereum Contract Tutorial greeter, deployed with the greeting: Hello World!

The 8 August 2015 messaging contract whose sendMessage always reverts, indexing a hash array that is never lengthened.

An on-chain messaging contract from 8 August 2015 whose sendMessage only advances the nonce and stores nothing.

A redeployment six minutes later of the same unfinished messaging contract, byte for byte identical.

The 8 August 2015 messaging contract where sendMessage first writes a message, keyed by the nonce.

The seventh iteration of an on-chain messaging system by the most prolific Frontier developer, featuring nonce-based message hashing and delete capability.

The eighth iteration of an on-chain messaging system by the most prolific Frontier developer, featuring nonce-based message hashing and delete capability.

Tutorial-derived coin contract (Solidity v0.1.1), one of multiple FirstCoin instances deployed by the same address on Aug 8, 2015.

Tutorial-derived coin contract (Solidity v0.1.1), one of multiple FirstCoin instances deployed by the same address on Aug 8, 2015.

Tutorial-derived coin contract (Solidity v0.1.1), one of multiple token instances deployed by the same address on Aug 8, 2015.

The ethereum.org crowdsale tutorial, deployed on the ninth day of the public chain, with the funding goal, deadline and price fixed at construction.

Aug 8 2015 deploy by 0x8674c218 — one of the most prolific contract deployers of Ethereum's first day. Sibling of the verified MessagingContract / Ponzi / Messa

Aug 8 2015 deploy by 0x8674c218 — one of the most prolific contract deployers of Ethereum's first day. Sibling of the verified MessagingContract / Ponzi / Messa

The first draft of the EarlyLottery commit-reveal lottery, deployed on 8 August 2015 a few hours before its rewrite.

Aug 8 2015 deploy by 0x8674c218 — one of the most prolific contract deployers of Ethereum's first day. Sibling of the verified MessagingContract / Ponzi / Messa