Crash — round details
Every round uses one hash from a pre-generated chain whose terminal hash was published before the first round. At crash the round's hash is revealed; SHA-256 of it must equal the previous round's hash, and the crash point is HMAC-SHA256(round hash, salt) mapped by crash = floor(100·(1−edge)·2⁵²/(2⁵²−u))/100, u = first 52 bits. Nothing here needs the server — recompute it yourself.
All chains and their terminal hashes
