Verify exact file
Choose a file and the browser computes its SHA-256 hash locally.
Public verification · Free · No account required
Verify a public registry record
Check whether an exact file or SHA-256 hash has a matching public Electronic Registry record. Files are hashed locally and are never uploaded.
Verification console
Paste a verification code or choose the exact file you want to check.
Verification options
Choose the fastest check
Verify SHA-256 hash
Paste a known hash or verification code.
Inspect related public history
Public References and timelines appear as related context, separate from exact matches.
Already have a Research or Audit key?
Open timeline verification when you need to inspect a known public history key.
Important limits
Important limits
Verification is exact-match infrastructure, not a legal or truth decision. Electronic Registry does not prove ownership, authorship, originality, legality, compliance, AI status, official approval, legal validity, or court acceptance.
Read trust limits