There are some key things to keep in mind if you want to try to figure out how to do truly anonymous tracking of installs for F-Droid:
* The anonimity of the data must be proven, not assumed. It only takes 33 bits of data to uniquely identify every person on the planet. There are so many cases where organizations put data on the internet that they believed had been "anonymized", only to find out it was trivial to deanonymize with the right techniques.
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