The Piper Merriam Collection

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

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

The first deployment of Piper Merriam's Ethereum Alarm Clock, a smart contract protocol for scheduling transactions at future block numbers, launched on Septemb

The second contract deployed by Piper Merriam on September 22, 2015, within hours of the Ethereum Alarm Clock v1, representing the first same-day iteration of t

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

A Solidity string utility library authored by Piper Merriam and deployed on October 12, 2015, providing functions for converting between unsigned integers and s

The first scheduled-transaction service on Ethereum, enabling smart contracts to schedule future function calls—deployed by Piper Merriam in October 2015.

A later iteration of Piper Merriam's Ethereum Alarm Clock, deployed on December 23, 2015 as the fifth of five contracts deployed in rapid succession, representi

Test contract for Piper Merriam's Ethereum Alarm Clock, deployed December 2015. Verifies the scheduler can execute set/register/do calls correctly.

The Ethereum Alarm Clock Scheduler contract by Piper Merriam — one of the earliest utility smart contracts on Ethereum, enabling time-based scheduling of future

An ERC-20 token deployed by Piper Merriam for Devcon2 attendees that served as an early on-chain proof of attendance.