Source first
Every public field remains attached to a named source, source date, acquisition hash, and permission decision.
How the evidence moves
Methodology
Records flow through source approval, immutable acquisition, normalization, taxonomy mapping, entity resolution, field verification, evidence-only enrichment, and a fail-closed publication decision.
No silent merging
Exact official identifiers can join. Similar names become review cases; uncertain records are never merged automatically.
Evidence-only writing
Summaries restate confirmed facts. They cannot invent price, availability, capacity, shipping, quality, ratings, or reviews.
Fail closed
Unresolved identity, status, rights, privacy, and certification conflicts suppress publication or indexing.
Current certification should always be confirmed with the certifying agent.