What this Tool does
Report same, changed, missing and extra canonical entry digests by exact path.
Reproducibility boundary
Phase 77 proves deterministic local reconstruction and SHA-256 equality only. It does not create a digital signature, trusted timestamp, remote trust anchor, ownership/authenticity proof, real-world chronology, legal chain of custody, account/provider identity, cloud origin, semantic save validity, compatibility decision, restore authority, or live-save mutation authority.
Input contract
Choose two valid Phase 77 deterministic archive JSON documents. Comparison is limited to canonical archive/manifest/entry and referenced cryptographic identities.
Safe interpretation
Canonical byte equality can show that the same supported evidence inputs rebuild the same local archive. It cannot identify who created the evidence, establish a trustworthy date, prove ownership or origin, or authorize restore/mutation.