Proof of authentication
Bitcointalk username:  Ekaterina777
Telegram username:@ Kiriluekaterina
Bounty campaign:  blog
https://steemit.com/lbx/@ekaterina77/london-block-exchange-lbx
https://golos.io/lbx/@ekaterina77/london-block-exchang
ETH Address : 0x19893Bf6b4D65F0dE2D80199817498C14c60526F