NIP-85 Trusted Assertions — the Quartz model

Package: quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip85TrustedAssertions/. NIP-85 is still an evolving spec; this package is the operative definition of what Amethyst-family software writes and reads. This skill states the model (who signs what about whom), the exact kind/d-tag/tag vocabulary, and what consumers may — and may not — assume.

The model in one paragraph

An assertion is signed by the asserting party (a trust provider service, or the user themself) about a subject named in the d-tag. All assertion kinds are addressable, so "latest card by provider P about subject S" is just the addressable coordinate (kind, P, S) and supersession is standard NIP-01 latest-wins. Discovery is the observer's kind 10040 list: each entry says "for metric M on kind K, I trust provider P — fetch their assertions at relay R". Quartz enforces none of this cryptographically beyond normal event signatures; the 10040→assertion link is consumer-side convention (see "Authorization" below).

Kind map