Enter a Nostr pubkey (hex or npub) and one or more relay URLs. The page will query the
relay(s) for the latest kind 9999 event from that pubkey and verify the signatures are
valid, and whether it has been submitted to Open Time Stamps.
Paste a kind 9999 event JSON below to verify all signatures.
Or import a proof archive file (offline verification without a relay):
Sign in with your Nostr identity (NIP-07 extension or nostr-login-lite) to look up your
own kind 9999 event automatically.
Full event JSON:
Verification Results:
Note: Passing every check does not mean that your current nostr identity
is now post-quantum secure. This tool is the preparation step. Full quantum safety for
day-to-day Nostr use still requires companion protocols that are not yet built.