#Proof-of-authentication:
   •   Bitcointalk username: Kingbitcoin154
   •   Telegram username: @daokaka154
   •   Twitter username: @Badao154
   •   Link to your tweet about Smart City Eco: https://twitter.com/Badao154/status/1009287869590990848
   •   Facebook: https://www.facebook.com/daokaka154
   •   Link to your Facebook post about Smart City Eco: https://www.facebook.com/daokaka154/posts/227872647818702