https://arxiv.org/help/registerhelp https://arxiv.org/help/registerhelp You only need-need an email address, I think. I've seen papers where the 'institution

https://arxiv.org/help/registerhelp https://arxiv.org/help/registerhelp You only need-need an email address, I think. I've seen papers where the 'institution' of the author is their home address both on arxiv submissions and in traditional journals. I didn't trust them very much, but I have seen them.