Github's DMCA takedown notice Database
example
https://github.com/github/dmca/blob/master/2023/01/2023-01-03-pterodactyl.md
also see

Lumen is an independent 3rd party research project studying cease and desist letters concerning online content. We collect and analyze complaints about online activity, especially requests to remove content from online. Our goals are to educate the public, to facilitate research about the different kinds of complaints and requests for removal--both legitimate and questionable--that are being sent to Internet publishers and service providers, and to provide as much transparency as possible about the “ecology” of such notices, in terms of who is sending them and why, and to what effect.
The concept of "chilling effects" or a "chilling effect" refers to the deterrent effect of legal threats or posturing, largely cease and desist letters independent of litigation, on lawful conduct. The Lumen database collects cease and desist notices and other requests to remove online content in order to to educate the public and to facilitate research about the different kinds of complaints and requests for removal--both legitimate and questionable--that are being sent to Internet publishers and service providers, and to provide as much transparency as possible about the “ecology” of such notices, in terms of who is sending them and why, and to what effect.

Author
by oran collins
github.com/wisehackermonkey