Thanks for this notification. I am a Canadian participant in ISO TC154 standardization work with respect to ISO 8601 Representation of Dates and Times as well as in ISO/IEC JTC1 SC32 Data Management and Interchange and SC27 Security Services. I also working in the voluntary standards area for Industry Canada's Task Force on Electronic Commerce. The reason for this introduction is that in various standardization areas and business sectors there is an increasing need for a standard for a date/time stamping service, related protocols and even trusted third party(TTP) certified time stamps, etc. My approach here is (1) is do not do work that overlaps/duplicates that which already exists, (2) utilise expertise that exists and work that is already done (or being done); and (3) do not "over kill", i.e. business, scientific and other requirements are not homogeneous and depending on the nature of the business transaction, application, etc. require different levels of granularity/degrees of preciseness not do users require TTPs, asymmetric cryptographic algorithms, etc. at all times. A modular, lego-block approach is needed. Can any of you help me out on this? Have some ideas? Are any of you aware of "standardised" approaches/implementations for date/time stamping services currently in existence that can/should serve as input into the development of an international standard?, etc. Comments, info, advice, etc. here is much appreciated. Regards - Jake Knoppers <<mpereira@istar.ca>>