Time stamps
A time stamp guarantees that the data in electronic form existed in that form at a specific point in time. The system time recorded in documents is easily manipulated; only a time stamp provides you with indisputable proof of what your document looked like at the moment you stamped it.
It is a suitable supplement to electronic signatures and can be used, for example:
- when archiving electronic documents
- in electronic transactions, such as invoicing
- for electronic forms
- in short, wherever you need to prove what your electronic document looked like at a certain point in time
Service benefits
You can clearly prove how and when the document looked
With a timestamp and electronic signature, you can always clearly prove when your document was last modified.
Package or flat rate? Use stamps as you wish
If you know in advance how many time stamps you will need, order time stamps with a fixed flat rate. However, if you use a different amount each month or are unsure how many stamps you will need, you may prefer prepaid time stamp packages.
For more information, see the Qualified Time Stamps section.
Order online
You can conveniently order prepaid time stamp packages online.
Product orders | PostSignum Certification Authority
You don't have to worry about the operating system
You can use time stamps on your computer with any operating system or on mobile devices.
Keep your time stamps under control
On the PostSignum Customer Portal, you can find out not only how many time stamps you or your employees have used this month, but you also get a convenient tool for managing and recording certificates. No software installation, no paperwork, no worries.
You can rely on us
PostSignum is the largest certification authority in the Czech Republic. We are the only certification authority with certification of compliance with ČSN EN ISO 9001 and ČSN ISO/IEC 27001.