Registry Contracts

One of the earliest interactive contracts on Ethereum, allowing users to stake claims and leave permanent messages on the blockchain.

The official Ethereum GlobalRegistrar deployed by the go-ethereum team in August 2015. This was the canonical name registry contract embedded as pre-compiled by

A simple name registry contract with reserve, transfer, setAddr, and disown functionality, deployed on Frontier Day 6.

The second deployment of the official Ethereum GlobalRegistrar, deployed nine days after the first. Both deployments use identical bytecode pre-compiled and emb

A second deployment of the Ethereum GlobalRegistrar — the early name registry that predated ENS — made on August 10, 2015.

Arbiter registry by Vitalik Buterin (Sep 2015). Pay 1+ ETH to list yourself. Fee decays 50%/month. One of the earliest on-chain reputation systems on Ethereum.

A smart contract deployed to record marriages on the Ethereum blockchain.