Verification of the authenticity of a document
Deposit a file to see if it was sealed in a Certyneo evidence safe and when.
No file uploaded: only its SHA-256 signature, a one-way identifier, is used for verification.
How does it work?
Local footprint
Your browser is calculating the SHA-256 signature of the file.
Comparison to the chest
The print is being compared to the documents sealed in the Certyneo evidence safe.
Proof of date
If a match exists, we indicate the earliest date of sealing, which is reliably timestamped.
Any doubt about the integrity of your documents?
The Certyneo digital safe seals each document, dates it and keeps it in unalterable WORM mode, with a revocable deposit certificate.