Are past Chronom Maps lost in Time?

[Nikopol]

Hello,
i watched a let's-play of a Chronom Map, (January 21, 2021). It looked like a fun map, and I wanted to play it. Is there a way to access a map, that was more than 5 day ago?
I asume there is a stable method to derive the map seed of the date, and thus re-generate the map in Mark V.

Thanks in advance,
Best Regards, Nikopol

[Karsten75]

Unless you (or your computer) can travel back in time, them map is irredeemably lost in the mists of times past.

[Nikopol]

Hm, ok. That's a pity.
I'm still waiting for my future self to come around with the time travelling research results.