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+<https://help.github.com/articles/dmca-takedown-policy#b-counter-notification-policy>:
+> A physical or electronic signature of the Subscriber;
+
+[private]
+
+> Identification of the material that has been removed or to which
+> access has been disabled and the location at which the material
+> appeared before it was removed or access to it was disabled;
+
+Before access to it was disabled, the material was available at
+[fmap/flp.mobi](https://github.com/fmap/flp.mobi).
+
+> A statement under penalty of perjury that the Subscriber has a good
+> faith belief that the material was removed or disabled as a result of
+> a mistake or misidentification of the material to be removed or
+> disabled;
+
+I state, under penalty of perjury, that I believe the material was
+disabled as a result of a mistake or misidentification of the material
+to be removed or disabled.
+
+I interpret the basis of the [take-down][dmca] to be (1) Perseus holding
+the copyright of _The Feynman Lectures on Physics_, (2) files in the
+repository infringing upon that material. I don't believe either basis
+is valid: (1) Caltech hold the copyright, Perseus only have print
+publishing rights, the integrity of the notice relies on Perseus having
+been authorised to act on behalf of Caltech; (2) none of Caltech's
+content is included in the repository, all it contains are a set of
+scripts to process material [provided by others][book].
+
+  [dmca]: https://github.com/github/dmca/blob/master/2014-02-07-Perseus-Books.md
+  [book]: http://www.feynmanlectures.caltech.edu/
+
+> The Subscriber's name, address, and telephone number, and a statement
+> that the Subscriber consents to the jurisdiction of Federal District
+> Court for the judicial district of California, or if the Subscriber's
+> address is outside of the United States, for any judicial district in
+> which GitHub may be found, and that the Subscriber will accept service
+> of process from the person who provided notification or an agent of
+> such person.
+
+[private]
+
+I consent to the jurisdiction of Federal District Court for the judicial
+district of California, and will accept service of process from the
+person who provided notification or an agent of such person.
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