nostr:npub1getal6ykt05fsz5nqu4uld09nfj3y3qxmv8crys4aeut53unfvlqr80nfm extension allows you to produce a Schnorr signature with your on arbitrary data. That's freaking cool! nostr:npub1mhcr4j594hsrnen594d7700n2t03n8gdx83zhxzculk6sh9nhwlq7uc226 is making use of that to spend Pay-to-Public-Key (P2PK) locked ecash in the browser.
What does that mean? Someone can post ecash publicly that is locked to your npub (on nostr or *anywhere else*). Everybody can see it and verify that you're the recipient, but only you (with your nsec) can actually spend it (using Alby) to your wallet.
We're going to use nostr identities for payments and we're not going to ask for permission. 🤙
