How Arch Works

Arch’s FROST + ROAST signature scheme allows the Arch Validator Network to collectively generate bitcoin addresses and sign bitcoin transactions, while retaining the ability to dynamically add and remove nodes from the signers/validators set (this allows the network to be both decentralized and robust/fault-tolerant). Each node runs an instance of the smart contract execution environment, maintains a database of the associated state, and provides an RPC interface for users to access the network.