#Proof of authentication

Bitcointalk username: blinov026
Bitcointalk profile link: https://bitcointalk.org/index.php?action=profile;u=22..
Telegram: @blinov026
Twitter: https://twitter.com/Sergey97386527
Facebook: https://m.facebook.com/sergey.blinov.165
YouTube link: https://www.youtube.com/channel/UC5wGRkvtl9L7R