Proof of authentication:

BTT profile: https://bitcointalk.org/index.php?action=profile;u=993157
BTT username: urban0
Telegram: @enzocasti

Facebook campaign:
Facebook profile link: https://www.facebook.com/atzori.gem

Twitter campaign:
Twitter profile link: https://twitter.com/Rascale_Gem

Reddit campaign:
Reddit url: https://www.reddit.com/user/muletto