Cold Root Identity v0.1.0 Cold Root Identity is a simple model for survivable Nostr identities. No protocol changes, no new relay behavior, and no delegation logic. The idea is straightforward: - A root key stays offline as the authority - Epoch keys are derived deterministically for actual daily use - A signed lineage event proves each new epoch key is legitimate - Clients treat the newest valid epoch as the user’s active identity - Old posts stay under old keys; new posts use the fresh one This gives users safe key rotation without burning their entire account. A compromise only affects a single window instead of the whole identity. The Python reference implementation, test vectors, and spec are here:

GitHub

GitHub - GHOST-UntraceableDigitalDissident/cold-root-identity: Reference implementation of cold root keys, deterministic epoch keys, and lineage proofs for Nostr.

Reference implementation of cold root keys, deterministic epoch keys, and lineage proofs for Nostr. - GHOST-UntraceableDigitalDissident/cold-root-i...

If you’re a client dev, this is everything needed to implement rotation cleanly today.