free dataset에 대한 15가지 놀라운 통계
http://archergask663.iamarrows.com/ai-datasetsleul-wihan-14gajiui-hyeonmyeonghan-jichul-bangbeob
In addition to, it can be learned that there are also some registrar corporations who demand a notarized form or other formal recognition files, but they are just based on the sure county that the registrants resides