#Proof of authentication

Bitcointalk username:  dung_quyen
Profil link: https://bitcointalk.org/index.php?action=profile;u=1432153
Facebook Link : https://www.facebook.com/minhkiem.nguyen.1
Twitter Link : https://twitter.com/DungQuyenNg?lang=en
Telegram : @dungnguyen06
Spreadsheet #:    3879