Why Nostr? What is Njump?
2024-09-01 22:27:08

aivii on Nostr: A neat trick. ...

A neat trick.

Having a seed in a Coldcard Q, I derived —using a BIP85 index— a deterministic 32-byte-hex. That's a private key for Nostr.

I asked Q to show it as a QR, and then I scanned it with a Nostr client. Thats it.

If I lose my phone or logout from client, I can always derive it again using the same seed and index with a CC Q 🙂
Author Public Key
npub1md2q6fexrtmd5hx9gw2p5640vg662sjlpxyz3tdmu4j4g8hhkm6scn6hx3