In the Nostr protocol, every event is a cryptographically signed message with a unique identifier, its event ID, derived from the event’s content and metadata. This event ID ensures that each event is a distinct and immutable fact within the system: a verifiable datum that exists independently of any interpretation or context.

However, the truth or meaning of that event cannot be fully resolved within Nostr itself. Whether a particular event is deemed credible, relevant, or aligned with reality depends on social information—the shared human understanding, trust relationships, reputational assessments, and contextual cues that exist outside the protocol.

In this way, Nostr records facts in a cryptographic sense, but the interpretation and truth-value of those facts are mediated by social processes external to the technical system.