https://docs.github.com/en/site-policy/content-removal-polic...
I'm just gonna quote GitHub "The DMCA requires that you swear to the facts in your copyright complaint under penalty of perjury. It is a federal crime to intentionally lie in a sworn declaration. (See U.S. Code, Title 18, Section 1621.) Submitting false information could also result in civil liability — that is, you could get sued for money damages. The DMCA itself provides for damages against any person who knowingly materially misrepresents that material or activity is infringing. "