I think the Russians has the right word for this claim about IPv6
Are you quite sure? I speak passable Russian, and lived there for a few years during the late Soviet times. I've never seen or heard this word - so it could not have been more than a part of a sub-culture slang.
The only "правада" duckduckgo or yandex.ru know about is an indie rock group from St. Petersburg. It sounds pretty derivative to me, both in term of the music and in their lyrics.