ANSI ASC X9.95 Standard

The ANSI X9.95 standard for trusted timestamps expands on the widely used RFC 3161 - Internet X.509 Public Key Infrastructure Time-Stamp Protocol by adding data-level security requirements that can ensure data integrity against a reliable time source that is provable to any third party. Applicable to both unsigned and digitally signed data, this newer standard has been used by financial institutions and regulatory bodies to create trustworthy timestamps that cannot be altered without detection and to sustain an evidentiary trail of authenticity. Timestamps based on the X9.95 standard can be used to provide:authenticity: trusted, non-refutable time when data was digitally signed integrity: protection of the timestamp from tampering without detection timeliness: proof that the time of the digital signature was in fact the actual time an evidentiary trail of authenticity for legal sufficiency