Unknown Contracts

A tiny CALLCODE proxy that forwards calls to the Ethereum Foundation multisig wallet library.

A pricing and deposit management contract from August 11, 2015, featured by ether.camp founder Roman Mandeleil as a notable early Frontier contract.

A time-locked escrow contract from August 11, 2015, funded with 20 ETH and featured on ether.camp as a notable early Frontier deployment.

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

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.

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

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.

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.

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

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

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

Owner-controlled dynamic-array member registry.

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

An early standalone self-destruct contract that lets its deployer permanently kill the contract.

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

A Frontier-era Greeter with the message: 'Hello from the BBA and from Benthurst & Co.!'

Optimized Ethereum "greeter" tutorial with ABI-encoded string constructor arg.

A Frontier-era Greeter with the message: 'Dublin rocks!'

A Frontier-era Greeter with the message: 'O brave new world'