Developers can use sCrypt to lock and unlock BSV funds based on different signatures.

Evisource is a service which allows node operators to return different signatures based on the true/false nature of a message embedded in the sCrypt transaction.

This allows external data events to be accessed inside an immutable transaction. By having mutiple clauses, a contract can require as many nodes to verify as many external datapoints as the issuer deems necessary for a given usecase.

Anyone can be a node operator by following the instructions here.

Node operators can charge whatever they would like to provide their signatures, Evisource does not take a cut. We recommend node operators charge at least 600 satoshis to issue a valid signature.