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Qualified timestamps, RFC 3161, Merkle anchoring, and EU compliance evidence — written by the people building TrustBeat. RSS

ETSI TS 119 511 explained: PDS, PGD, AUG and WST, WTS, WOS

The European standard for preservation services describes every service with two codes: what is preserved (PDS, PGD, AUG) and who keeps the evidence (WST, WTS, WOS). What they mean, why PGD can never be qualified, how to check a vendor's claim — and TrustBeat as a worked example.