#Proof of authentication
Bitcointalk Username: rubrock
Telegram Username: @rock9111
Twitter Username: @RakiulSekh
Facebook account link: https://www.facebook.com/rubai.rock.376
Youtube Username: https://www.youtube.com/channel/UCJyenVj83HeG4o0BVBJm8vA
Instagram Username: https://www.instagram.com/rubrock12/