Miley Cyrus and free dataset: 10 Surprising Things They Have in Common

http://brookswagl284.cavandoragh.org/the-most-influential-people-in-the-free-dataset-industry-and-their-celebrity-dopplegangers

Apart from, it can be learned there are also some registrar providers who demand a notarized form or other formal recognition documents, but they're just with regards to the particular county the registrants resides