time-capsule cryptogram

[nibot]

TMWTDAAHOTTA 2076 FLSU 1976 IC00CBC ... PHBMDLJCCGESMPSLMSLUTSUUAGLDWRSR

Comments

[nibot.livejournal.com]

My first guess (without doing any puzzling at all) is that it's a one-time-pad or substitution cipher with the key stored in the vault so that only in the future will the message be known. Why else would you obscure the message like this?