Frontier Era

A two hundred byte contract that returns a fixed array, from a Solidity teaching series

A two hundred byte contract that returns a fixed array, from a Solidity teaching series

A tutorial contract holding a 3 by 3 grid of tile structs, deployed 30 September 2015.

A three by three tile map written into storage at construction: nine elevations passed in as a fixed array and read back as a grid.

A second ArrayPasser deployment from Cyrus Adkisson's Solidity walkthrough

A tutorial contract testing fixed-size array passing as function parameters in Solidity.

Etheria v0.6, the version whose tiles can never change hands

An onchain sorted index by Piper Merriam: a self-balancing tree that answers first-above and first-below queries over stored values.

Second deployment of Vitalik's on-chain escrow (Oct 2015). Arbiters vote to release escrowed funds. Identical bytecode to the Sep 28 instance.

An onchain sorted index by Piper Merriam: a self-balancing tree that answers first-above and first-below queries over stored values.

Royalty splitter for Imogen Heap's Tiny Human, the first commercial music release with payments settled by an Ethereum smart contract (October 2015).

A minimal event-logging contract with a single function log(uint256) that emits MyEvent. Compiled with soljson v0.1.2, optimizer off.

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

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

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

A copy of the coin contract from the Frontier Guide, the two function token that taught a generation of Ethereum developers to move a balance.

Vitalik's first multi-auction ad registrar (Oct 6, 2015). EXACT byte-for-byte match.

Deployment of the official Solidity Greeter tutorial, initialized with "Hello World!" and compiled with soljson v0.1.1.

A Solidity date and time utility library deployed by Piper Merriam on October 6, 2015, providing functions to parse Unix timestamps into human-readable date com

An onchain sorted index by Piper Merriam: a self-balancing tree that answers first-above and first-below queries over stored values.

A call forwarder from the Ethereum Alarm Clock: it relays a call to any address, and only the scheduler that created it may ask.

The bonded caller pool of the Ethereum Alarm Clock: callers post a bond, take turns being the designated executor, and forfeit it if they miss.