Board Thread:Naruto Gaiden/@comment-3279282-20150504200737/@comment-24593592-20150510072939

NoSkoolThrasher wrote: Could it just be that Sarada doesn't have birth records in order to protect her from Orochimaru or something like that? sorta like how Naruto's birth was supposed to be a secret and he ended up getting his mothers last name and not his fathers so he wouldn't become a target, but maybe not as Sarada received her fathers last name and people would easily make a connection.

Actually, that was fanon that is filled with holes. It had to do with keeping the details of the Kyuubi attack a secret.

1)The Uzumaki were targeted for destruction.

2)The village did know who his parents were. Kushina went around telling people the baby's name.

3)The Uzumaki is a famous name hence why Naruto got it. That's how Japanese culture works.