Practical experience

We recommend running preservation of qualified electronic signatures/seals with a qualified time stamp in a document (with the Preserve register method) in a sufficient interval – at least 5 minutes, ideally 24 hours – after signing/sealing the document (with the Seal method) to be able to attach the corresponding revocation data from OCSP/CRL for the signatures/seals/time stamps. In the case of a CRL, those 24 hours may be required.