#Proof of authentication
Joined Campaigns: Reviews on YouTube
Bitcointalk username: stYd
Huobi Russia UID: 64033553
Telegram username: @sergei_mateiko
Twitter profile link:
https://twitter.com/MateikoSergioFacebook profile link:
https://www.facebook.com/sergiomateikospainBitcointalk profile link:
https://bitcointalk.org/index.php?action=profile;u=2260057