#Proof of authentication:

Campaign: youtube
Bitcointalk username:   vuvietanhdell
Bitcointalk Profile:        https://bitcointalk.org/index.php?action=profile;u=1788157
YouTube chanel:          https://www.youtube.com/channel/UCJpP2sUM91mfOhDMdkvvQ5w
Telegram:                   @vvitanh98
ETH:                           0x91406B5d57893E307f042D71C91e223a7058Eb72