What this Tool does
Compare exact casebook identities and report-document membership between two valid Phase 80 casebooks.
Offline review boundary
Phase 80 creates deterministic local review collections only. It does not establish semantic findings, annotations with authority, collaboration/account authority, authorship, ownership, authenticity, origin, chronology, legal custody, authoritative-copy status, compatibility, restore priority, trusted time, remote trust, signature validity or production acceptance.
Input contract
Choose two valid Phase 80 casebooks. Comparison reports exact casebook/report-document identity differences only; side order is not chronology or authority.
Safe interpretation
A valid casebook proves deterministic local grouping and exact cryptographic binding to revalidated Phase 79 reports. Report ordering is cryptographic, not chronological, and aggregate counts may overlap across reports.