#Proof of authentication
Joined: twitter and  facebook
Bitcointalk Username: vietthangsp
Bitcointalk Profile Link: https://bitcointalk.org/index.php?action=profile;u=2108348;sa=summary
Twitter profile link: https://twitter.com/dangtramanh123
Facebook profile link: https://www.facebook.com/ThangNguyen2121
Telegram name: @ThangNguyen212