P.S. We offer a new type of provably fair system. Here is how it works:
1. Before every bet, game generates number in a range 0 - 9.999.999 and random 12 symbols
2. After it encrypts them by following formula hash('sha512',(number+'-'+symbols))
3. Player can find the next game hash under win/lose section
4. As player makes a bet, rolled number appear in Betbit's eyes section and the random symbols - in "Plays" tab in left menu.
5. To check the hash, the player need to google any sha512 encryptor and place "random number" + "-" + "random symbols" there and encrypt them.
The new provably fair system is very flawed. It isn't actually provably fair, only provably determined. As the house, if you see someone running a martingale bot and betting high, you can purposely give that player hashes that are low numbers and cause them to bust. Most people also don't switch between Hi/Lo, or do it in a pattern, so it isn't hard to write a script to predict what they will use next, and send a "random" number to make them lose. I suggest you look into the nonce system + client seed system Primedice/Justdice/Most dice sites use, or use the system moneypot does.