Actually, that's the great part about what we are doing: it is all built on Ethereum, so there is no centralized database, and the users are generally pseudonymous! OK, you might then say "isn't that just a decentralized database?", but in addition to a form of "probabilistic micropayments" that ends up shrouding most of the participants, we are also working on integrating other techniques to make the payments fully anonymous (and have brought on a team of advisors which includes a professor of cryptography who specializes in this area).
