True, block hash is unpredictable - but we combine it with a server seed to avoid relying on a single source, in case one ever gets compromised.
Bets also close 5 blocks before the target, so everything's locked before the hash is known.
Thank you for taking the time to answer the questions regarding your provably fair system, but you didn’t explain how the result is calculated! Sorry, but without disclosing the formula used to generate the result, we can’t say this is a
provably fair system.