@Unique Questions

I’ve been doing some research on the uniqueness of the text value generated by @Unique. This particular post → http://www-10.lotus.com/ldd/nd6forum.nsf/55c38d716d632d9b8525689b005ba1c0/70e6ce12e6ea5ef18525713f003443e8?OpenDocument states “The first three letters of the suffix (ex. the 123 in ABCD-123456) are therefore identical for all sequences generated on the same day, and different for any sequences generated on different days.” It goes on to say “The last three characters of the suffix (ex. the 456 in ABCD-123456) are generated based on the number of seconds since midnight”

Does anyone know how the “The first three letters of the suffix” are generated? Is it number of days since Jan 1, 1970 or something along those lines? My concern is whether or not the first three letters ever repeat in future years.

In addition the post I’ve linked above references “Technote 144863” which may provide me with my answer but I have not been able to find it. If you can provide me a link or instructions on where to go to view it I would be extremely grateful.