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Fair play

Provably fair

Every result is locked in before you bet. After the bet you can redo the draw yourself and get exactly the same result.

  1. Server seedWe pick a secret seed and show you its hash first, so it can never be changed.
  2. Your seed + nonceYour own client seed, plus a counter that goes up by one every bet.
  3. The resultAll three together decide the result. Rotate your seeds and check it below.
Technical details
  • A draw is the first 48 bits of HMAC-SHA256(serverSeed, clientSeed:nonce), scaled to a number from 0 to 1.
  • Dice turns it into a roll, Limbo and Crash into a multiplier, the Upgrader into where the pointer stops. Games that need several draws add :0, :1, … to the message.
  • At the Crash table the message is the round number, so everyone gets the same rocket.
  • The hash we show is SHA-256(serverSeed). After rotating, hash the revealed seed and compare.
Your seeds

Sign in to see the seed pair your bets are drawn from.

Verify a result
Server seedrevealed
Client seed
Nonce