#proof of authentication
Article
Content creation campaign.
bitcointalk profile: nabdi
bitcointalk profile link: https://bitcointalk.org/index.php?action=profile;u=1866640
Spreadsheet Number: 43, 44
Article link:https://steemit.com/ico/@vlad-di/cubomania-sozdanie-obrazovatelnoi-platformy-igr
https://golos.io/ico/@dinar1996/cubomania-sozdanie-obrazovatelnoi-platformy-blokchein-igr

ETH: 0x3EC69bd424715e196D4af4da99513Bc6d040f051