You build your own blockchain or use other blockchain building your application?
Its very good question.
Really our official post about that is coming soon.
But already now i can tell you all that we will build our own blockchain.
We have partnership with company serokell.io - this guys are grate blockchain developers. Exactly this guys was in team that was developing Cardano blockchain (ADA coin). And they have done it grate! So part of our big team have real experience in creating real working blockchain.
We will post special presentation about this part of our project rather soon.
Seems good~