Tracing a Pokémon back to RNG seed

[da72107]

Hi everyone! Sorry, just one more question about the Kaphotics tweets from PC Invitational. He mentioned being able to trace a Pokémon back to its initial RNG seed. How would one go about doing that, and with what programs?

Here is the tweet for reference:

 

 

[theSLAYER]

From what I understand, those programs are private.

There is a public one that can trace back Max Raid (and non-shiny Max Lair) RNG seeds, but it breaks down if any details were edited.
(It won't produce a result like Groudon, though having no seed found is a good enough indicator that a mon was hacked anyway)
Groudon Example:

Spoiler

Edited Stats	Original Stats

https://github.com/Leanny/PKHeX_Raid_Plugin
 

 

Also, if you're interested in reversing Overworld8 RNG seed, here:

 

[da72107]

Thank you so much!