BetHash is built on the EOS blockchain, every transaction, including betting, revealing, sending rewards, are recorded on the blockchain and can NEVER be modified later after.
With that being said, there is absolutely NO chance for BetHash to cheat on its customers.
Blockchain-based RNG
One of our seed of our RNG(random number generator) is also generated by the EOS blockchain, which can NOT be controlled by anyone, a.k.a. BetHash does NOT even control our RNG because of the blockchain-based seed, which leads to absolute fairness.