What Is DOI In Sci-hub? The DOI is that unique document identifier that begins with “10.”. It is almost always shown somewhere on the site, so you can use search “10.” to find it. In rare cases, it is in the page’s source code or may not exist. If it doesn’t exist, it means you
Is ArXiv A Publisher? Some are copyright to the publisher, but the author has the right to distribute them and has given arXiv a non-exclusive irrevocable license to distribute them. Most are copyright to the author, and arXiv has only a non-exclusive irrevocable license to distribute them. Is arXiv considered a publication? No, it’s not