At a glance
| Input | Action | Output | Limit |
|---|---|---|---|
| Changed evidence record | Recalculate part and content hashes | PART_HASH_MISMATCH or CONTENT_HASH_MISMATCH | Hashes detect change. They do not prove original correctness. |
| Missing archive part | Compare the package with the manifest | PART_COUNT_MISMATCH and order errors | Import does not fill missing evidence. |
| Reordered parts or records | Check part numbers, ranges, chains, and record order | PART_ORDER_INVALID or RECORD_ORDER_INVALID | Matching counts alone are insufficient. |
| Archive from another tenant | Compare tenant identity across the package | TENANT_MISMATCH | Cross-tenant evidence is rejected. |
| Reconstructed collections | Recalculate content and root parity | A pass or failed parity result | Changed reconstructed data cannot pass parity. |
How it works
- Open Enterprise evidence workspace.
- Under Verification and portable evidence, choose the Archive package.
- Select Import archive.
- The app parses the package and validates its manifest and parts.
- Review the returned validation errors.
- Do not use a package with hash, count, order, chain, schema, or tenant errors.
- Confirm reconstructed content and root parity before any handoff.
Example
One stored term definition changes by one character after export. The part hash no longer matches. The flattened content hash also changes. Validation returns both failures. The package is not accepted as valid imported evidence. The administrator returns to the deposited source archive instead of presenting the altered package.
What this does not mean
Mutation detection proves whether protected archive content still matches its recorded hashes and structure. It does not prove that the original evidence was accurate. It does not create legal WORM storage. A valid package can still have known coverage gaps recorded in its manifest.
Related questions
Next step
Validate every archive before import or external handoff. Stop when any integrity or tenant check fails.
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