I think we won't come to any conclusion and are running in circle with the discussion.

Again, I can fully understand your reasonable doubts on our case.
Yes this whole thing sounds too good to be true (and in most cases everything that sounds too good to be true, is too good to be true) and me as external person would think, that's just a matter of time until it crashes.

We're currently thinking about a solution to prove the work we're doing.

I say thank you JoelKatz for your interesting thoughts, it's hard to stay objectiv when you are in the subject.

Regards
Simon