Evidency

Vérifier un jeton d'horodatage qualifié

You have received a timestamp token as legal proof. In seconds, verify its authenticity, the authority that issued it, and whether the document has not been altered.

Upload your files to verify

Drop .tsr / .tst / .p7s file here, or click
Drop the original file to verify its hash

* Your file will not be sent to our servers — it is hashed locally in your browser.

About this tool

This tool parses RFC 3161 timestamp tokens entirely in your browser — no data is sent to any server. It extracts and displays metadata from the token structure. Full cryptographic chain validation requires the TSA CA certificate.

What this verification proves

A qualified timestamp token is the highest level of legally recognised digital proof in the EU (eIDAS).

Three elements must be verified:

01

Sealing date & time

The exact moment the token was issued by an independent third party — legally presumed accurate under eIDAS.

02

Qualified trusted third party

The token must be issued by a qualified Trust Service Provider (TSP) recognised by a national cybersecurity agency and listed on the EU Trust List.

03

Digital file integrity

The document fingerprint (hash) in the token must match the original file. Any modification — even one character — produces a different hash.

Vous souhaitez renforcer la valeur probante de vos documents numériques ?

Vous voulez mettre en place des mécanismes de prévention de la fraude ? Les experts d'Evidency sont à votre disposition pour vous guider.