Frontier Era

A Frontier-era Greeter contract with the message: 'well hello there cc'

The canonical ethereum.org 'Dapps for Beginners' subcurrency (token): sendCoin transfers with a CoinTransfer event.

A self-destructed Frontier-era contract from August 12, 2015, that processed over 520 ETH before being destroyed. Mentioned in the ether.camp launch thread.

A 2-of-3 motion register deployed by the Ethereum Foundation's EF 1 wallet on 12 August 2015: three hardcoded keys co-sign to emit one onchain event.

Immutable state variables initialized in declaration + public auto-getter.

Owner-controlled custody contract with ICAP-style transfer events.

King of the Hill bidding game with time-based claim and emergency kill code.

A minimal contract that immediately sends any received ETH back to the sender.

One of the earliest provably-fair dice gambling contracts on Ethereum, deployed August 12, 2015 (day 13 of Frontier). Commit-reveal dice game with 2% house edge

First deployment of Gavin Wood's ExpRegistrar, a name registry where every name has a standing price that doubles on each sale.

Commit-reveal dice game deployed day 13 of Ethereum mainnet with 1,000 ETH bankroll. Still active in 2026 with 84 ETH locked. 1% house edge, 1 ETH minimum bet.

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

Frontier-week hash-prediction bidding game from August 2015, 13 days after Ethereum's mainnet launch. Players bid on future block hashes.

64.64 fixed-point library: e_exp, ln, floor_log2 for an early LMSR prediction market. Deployed Aug 12, 2015 — pre-Gnosis.

World's earliest known on-chain prediction-market resolution oracle, deployed August 12, 2015 — resolves bets on Ethereum mining difficulty.

Single view function returning `sha3(blockhash(n))`.

A Frontier-era Greeter contract with the message: 'Hello World!'

Revised ExpRegistrar, deployed six minutes before its source was committed to ethereum/dapp-bin. Seeds itself with the names gavofyork and NameReg.

A Frontier-era Greeter contract with the message: 'Hello David!'

Owner-controlled dynamic-array member registry.

A factory for pre-ERC-20 standard tokens: one call deploys a token with a chosen supply and records it under the caller's address.

A token built to the pre-ERC-20 Standardized Contract APIs, with sendCoin and coinBalanceOf in place of transfer and balanceOf.

An early ETH forwarder contract that sends received value to a specified address.