Does the ProofSpace technology use the RFC 3161 (TSP) Time-Stamping Protocol, RFC 3126, RFC 3029 (DVCS) or the norm ETSI TS 101 861?

The ProofMark System doesn't comply to RFC3161 because of the security concerns cited above. The ProofMark technology instead supports the more recent ANSI X9.95 standard, which superceded RFC3161 while providing a backwards-compatibility mode such that the two approaches can interoperate.