Verification
Verify a completed MNDA
Select a completed PDF. Your browser computes its SHA-256 hash, and MNDAtoday compares the hash with its records.
What a match proves
A match proves that the file did not change.
A match proves that the file is byte-for-byte the completed PDF that MNDAtoday produced.
A change to one byte of the file gives a different hash. A changed file does not match.
MNDAtoday keeps the hash of each completed PDF. The check works after MNDAtoday deletes the PDF file.
Check a file
Select the completed PDF.
Your browser computes the SHA-256 hash of the file. The file never leaves your device. MNDAtoday receives only the hash.
Turn on JavaScript to check a file on this page. The certificate download link below works without JavaScript.
SHA-256 hash of the file
Document seal
Each completed PDF carries a digital signature.
Each completed PDF carries a digital signature from "MNDAtoday Document Seal".
PDF readers show this signer as not trusted. MNDAtoday issues its own certificate, and PDF readers do not include this certificate.
Compare the fingerprint below with the certificate that your PDF reader shows for the signature.
Seal certificate
- Subject
- SHA-256 fingerprint
- Serial number
- Valid from
- Valid to
MNDAtoday cannot show the certificate details now. Download the certificate to examine it.
Download the seal certificate