I determined this based on being a person who has to read a lot of these regularly (even tho I am not in the US; fun innit?!) It does not lack any of the requi

I determined this based on being a person who has to read a lot of these regularly (even tho I am not in the US; fun innit?!) It does not lack any of the required elements (compare https://www.law.cornell.edu/uscode/text/17/512 https://www.law.cornell.edu/uscode/text/17/512 ). In fact, it is specifically written to hit all the required elements. Let's go through this. Statement there is copyright infringement and demanding takedown: >In light of the above noted copyright infringements and anticircumvention violations, we ask that you immediately take down and disable access to the youtube-dl source code at all of its locations where it is hosted on GitHub, including without limitation those locations in the representative list set forth above. (yes, the "copyright infringement claim is very most likely bullshit, but it's not Github's place under the law to rule on it, unless they want to lose their safe harbor protections and open themselves up to potential liability) (vi) statement of authorization (with perjury) > Under penalty of perjury, we submit that the RIAA is authorized to act on behalf of its member companies on matters involving the infringement of their sound recordings, audiovisual works and images, including enforcing their copyrights and common law rights on the Internet. (v) statement of good faith of accurateness >We have a good faith belief that this activity is not authorized by the copyright owner, its agent, or the law. We assert that the information in this notification is accurate, based upon the data available to us. (iv) and (i) contact details and (electronic) signature >You may contact me at RIAA, [private] Tel. [private], >[private] (ii) identification of content >We also note that the source code prominently includes as sample uses of the source code the downloading of copies of our members’ copyrighted sound recordings and music videos, as noted in Exhibit A hereto. For example, as shown on Exhibit A, the source code expressly suggests its use to copy and/or distribute the following copyrighted works owned by our member companies: [list] (yes, this is basically trickery to hit the (ii)) (iii) identification of infringement > https://github.com/ytdl-org/youtube-dl https://github.com/ytdl-org/youtube-dl [...] And there you go, all 6 required elements + claim of infringement + demand for takedown are there.