#Proof of Authentication
Joined Content Campaign:
Telegram Username:@butbienthai
Bitcointalk Username:tuananh9858
My bitcointalk:https://bitcointalk.org/index.php?action=profile;u=2251884

Joined linkedin Campaign:
www.linkedin.com/in/anh-tu?n-696478167

Joined medium Campaign:
https://medium.com/@sieukidhuy1
@sieukidhuy1