Frequently asked questions about TeRa

What is a timestamp?

  • Timestamps have several uses, including in digital signatures to certify the existence of the document and signature at a given time.
  • A timestamp can be thought of as an envelope containing data with the time that such data were inserted affixed as a seal. The seal must be broken to change data, thereby letting us know whether data has been changed. Time stamps are used in digital signatures the same way. 

Why must digitally signed DDOC documents be time-stamped?

  • DDOC containers have become less secure due to technological progress. The TeRa application will generate a new container that will include the original document. The new time-stamped container will help detect the opening and modification of the old container. If parties have different versions of the same document, the time stamp will help identify which version is the original.

What is required for timestamping?

  • Computer with internet access (Windows/Mac/Ubuntu)
  • TeRa timestamping application

TeRa application could not find any files on my computer that require stamping.

  • If TeRa is unable to find any files in DDOC format on your hard disk, then your signed documents are in up-to-date format and do not require stamping.

Which documents require stamping?

  • All files in DDOC format should be stamped that include documents the validity of which needs verification in the future. We recommend stamping all DDOC files on the computer to ensure that the validity of all the necessary documents can be verified in the future.

Can I continue using my computer while timestamping, e.g. for working?

  • You are free to use the computer for other purposes during the timestamping process. Timestamping with TeRa application requires minimum computer resources.

How long does stamping take?

  • Stamping takes about 1-2 minutes on a standard computer for a few hundred documents.

Can I delete the old DDOC files after stamping is completed?

  • TeRa stamping application creates a new file in ASICS format for each DDOC file that includes a time stamp and documents included in the DDOC file and therefore the DDOC files are no longer required.

Is stamping of files a paid service?

  • Adding a time stamp to DDOC files is free of charge within reasonable limits - 5000 timestamps day/25 000 month. IF there is a need for higher amount, then public sector companies should contact via e-mail help at ria dot ee in order to make cooperation agreement.

There's also an option to make an agreement directly with timestamping service provider. Previously RIA has used SK ID Solutions AS as a timestamping service provider.

Is it possible to download the TeRa application separately without using ID-card software?

  • TeRa stamping application can be downloaded separately from Github


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