A self-contained mockup for the smallest useful verification layer: claim / source / status / last checked. Everything else belongs behind a receipts drawer. This file is a UI sample, not a factual report.
Most proposals in this space die because they confuse proof with triage. The first layer should not be a bureaucracy. It should answer one practical question quickly: what am I looking at, and how old is it?
Implementation hint: the platform only needs a tiny spine first. A state machine, expiry policy, and search filters can come after the surface is legible.
Suggested fields for v1 storage: claim, source, status, last_checked.