Stamper is a free digital timestamping service which uses PGP and operates via Internet email. Launched in 1995, it remains my intention that this will be a reliable quality service which will remain in operation for a number of years. 15 years later in 2010, it is still running!
An addition to the service are email proof of posting certificates.
The following Stamper information is available:-
The following PGP related information may also be of interest:-