It probably isn't, I doubt someone who abuses trust and steals files would make an ethical decision regarding provably fair. Given a short exchange with the owner, he thinks it is also alright to operate on a max profit of 60 coins with what appears to be personal holdings of 100 coins or less (maybe less than 60). If you want to mess around with their faucet, it seems like a pretty solid deal, I wouldn't trust them with my own money though.
What did I steal Stunna? Please, show people what did i steal? Show them your intellectual property and let them decide if LN is stolen design from PD3 as you claim.
And I dare you to come to the site and place high bets like few other did or be quiet. You do not have a clue who am I and what sites I'm running except this one or how much money I have. Fair and square, come and bet and tell everyone here if I did not paid you.
As for provably fair, it is provably fair like any other dice site, should I point to other posts where people claim your site is fake, fraud, rigged and so on..
I know you are not used to have competition but this is really not my problem. I did respect you and your site but don't blame me your developers can't finish PD3.