An atomic clock which reproduces the Lithuanian scale of the universal coordinated time UTC(LT) is used for time stamp generation.
To protect the time stamps, they are signed with the BalTstamp electronic signature produced using a 2048-bit private key residing on a FIPS 140-2-compliant hardware security module.
BalTstamp complies with the European Telecommunications Standards Institute (ETSI) standards defining both time-stamping profile and policy requirements for time-stamping authorities.