Crash
Crash is a multiplayer game that uses a sha256 chain in combination with an undetermined client seed to fairly generate rounds.
Chain Generation
To generate the chain, we begin with securely randomized bytes. From there, we iterate 10 million times, feeding the
previous seed into a sha256 function. Double games read the chain in a reverse order.
The terminating/final seed of this chain is 492d10144035252745718fe4d2508affbea483872d88b86191b20ce0a7a8
Generating a hash
To achieve fair randomness, we create a sha256 hmac hash, created using the server seed as the secret and client seed
as the value.
The crash chain of 10 million sha256 hashes was generated on 2019-04-04 at 05:59 AM UTC. We decided to use
0000000000000000000415ebb64b0d51cceebb55826e438465bea777d91966, the hash of Bitcoin block 570132, mined
on 2019-04-04 06:35 AM UTC as the client seed for this chain.
