Understanding Document Verification
How anyone can confirm a signed NDA is authentic.
Certificate Number
Every fully executed NDA is assigned a unique certificate number. It appears on the signature page, the certificate page, and the verification page of the final PDF.
Verification page
The final PDF includes a dedicated Verification page with the certificate number, execution timeline, and forensic details such as IP addresses and user agents captured at signing.
Write-protected original
The final PDF is stored as a certified original — write-protected and pinned to its SHA-256 hash. Any modification would produce a different hash and would no longer match the certificate.