CredaScan verification · Local-only

Verify a CredaScan Record

Check whether a scanned document matches its CredaScan manifest. Verification happens locally in your browser without uploading, transmitting, or storing the document.

Open Verifier Create a Record
Document stays local The file is read only in your browser for hashing.
Manifest comparison The computed SHA-256 hash is compared to the manifest hash.
Clear result Verified, mismatch, invalid manifest, or unverifiable.

What you need

  1. The subject file — the scanned document being tested.
  2. The CredaScan manifest JSON — the machine-readable record created when the original proof was generated.
Privacy note: CredaScan does not upload or store the document. If you close, refresh, or reset the page, the selected file is not retained by CredaScan.
Important boundary: a verified result supports that the tested file matches the recorded digital evidence object. It does not prove authorship, ownership, chain of custody, signature authenticity, legal validity, or admissibility.

Verify Record

Upload the document and matching CredaScan manifest. The verifier recomputes the document hash and compares it to the recorded hash.

No verification performed yet.
Verification results will appear here.
Verified Mismatch Invalid Manifest Unverifiable

Verification Resources

How independent verification works

CredaScan computes SHA-256 over the target file bytes and compares that result to the document hash stored in the CredaScan manifest. If the values match, the tested file is identical to the recorded version. If they do not match, the file differs from the recorded version or the wrong file/manifest pair was used.

Evidence Pack source of truth

The CredaScan manifest JSON is the primary proof container. A report is a human-readable summary. Independent verification should rely on the manifest and the subject file.

  • document.hash_algorithm: SHA-256
  • document.hash: recorded file hash
  • created_at: record creation timestamp
  • evidence_pack_fingerprint: manifest self-hash, if present
Legal / Court Exhibit Note

This explanatory technical note assists review. It is not legal advice and does not guarantee admissibility; legal assessment depends on applicable law and case-specific circumstances.

  1. Exhibit A — Subject File: the scanned digital file being tested.
  2. Exhibit B — CredaScan Manifest JSON: the machine-readable integrity record.
  3. Exhibit C — Verification Report: optional human-readable summary, not the primary cryptographic artifact.