Proof-of-authentication:
   •   Bitcointalk username:Mayyasa
   •   Telegram username:@Akhmadfurqon
   •   Twitter username:@Mayyasa9
   •   Link to your tweet about Smart City Eco: https://twitter.com/Mayyasa9/status/1006141807850213376?s=20
   •   Facebook:https://m.facebook.com/akhmad.furqon.319?ref=bookmarks
   •   Link to your Facebook post about Smart City Eco:https://m.facebook.com/akhmad.furqon.319?lst=100000030055686%3A100000030055686%3A1528797354&fref=nf&pn_ref=story&refid=17&ref=bookmarks&__tn__=C-R