During the induction training at my new job (first job in CZ, I moved here one month ago) it was mentioned that foreign people residing in Czech Republic can officially register their domicile address here and get a sort of "birth number" or "citizen number" similar to the ID numbers given to people born in Czech. I was told that to get this number, I needed to fill in a form and send it to police or city hall. Can someone please advise me which form has to be filled in (I can maybe download it from a government website?), which documents need to be provided as well, and which address I need to send the documents to? I would like to officially register here for several reasons (both personal reasons and practical reasons). Note that I am EU citizen, so I dont need to apply for a residence or working permit, only for a resident number similar to the unique number given at birth to Czech citizens.