If your key gets compromised, Kind0.io lets you prove ownership of a new key. You whitelist your next npub ahead of time, and when needed, publish a migration event.
how it works
- Whitelist your backup npub in advance
- Timestamp to Bitcoin blockchain for proof
- If compromised, publish migration event
- Followers can verify the transition
The problem: nostr identities are keypairs, and if you lose your nsec or it gets stolen, you lose everything. This is a first step toward solving that.