It's not currently tracking anything, at least according to some unity devs on their support forums. So in the absence of some network request to capture, scripting the reinstall loop is the current option to be have a "day 1" script ready in advance.

> the same ip address

Unity confirmed that this is part of how they intend to do it. That's why the meme scripts so far make a point to cycle up addresses or use rotating proxies per install.

The other part of the methodology that unity confirmed is "proprietary internal models that can't be shared but are GDPR compliant". Somehow.