shorterday
Public verification

Verify a document hash

Paste a sha256 hash to confirm the file matches a record on file. A match means the file has not been altered since it was registered; a no-match means we have no record of that exact file.

Enter a hash
The certificate of completion that ships with every signed document includes the canonical sha256 hash for that artifact.

Paste the hash printed on the certificate of completion. We accept uppercase or lowercase, with or without a sha256: prefix.