Frontier Era

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.

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'

Owner-controlled member registry with array + mapping tracking.

An Ethereum Public Trust roster contract for adding, removing, and checking members.

Test/utility contract with `suicide(address)` kill switch and a `multiply2` helper.

Owner-controlled member registry using sequential id + mapping storage.

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

A Frontier-era Greeter contract with the message: 'Cyperx says Hello'

The ETH crowdsale contract for Augur REP token sale, August 2015. Contributors called buyRep() to fund Ethereum's first major dApp.

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

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

A Frontier-era Greeter contract with the message: 'Linuxakum zdar!'