Crash
Vérifiez n'importe quelle manche Roobet Crash. Roobet remplace le client seed par une public key par manche et fait tourner les deux seeds après chaque mise, donc pas de nonce — la public key est l'engagement de hasard par manche. Maths : HMAC-SHA256(serverSeed, publicKey) → slice 52 bits → check instant-bust 1-sur-33 → formule floor de la famille Stake.
Frequently asked
Is Roobet Crash really provably fair?⌄
Yes. Roobet publishes a cryptographic commitment (the hash of the server seed) for each round BEFORE you bet. Afterwards the server seed is revealed and anyone can recompute the outcome — which is exactly what the verifier above does. If the computed result matches the shown one, the round wasn't manipulated.
How do I verify a Roobet Crash round?⌄
Paste the revealed server seed and the round public key into the form above. The verifier re-runs the official math and shows you the exact result, step by step. Everything runs in your browser — your seeds never leave the device.
Where do I find my Roobet seeds?⌄
On your Roobet account's fairness / seed page. There you can rotate the server seed: rotating reveals the old one (so you can verify all your previous bets) and commits a fresh hash for the next ones.
Can Roobet cheat on Roobet Crash?⌄
Not without getting caught. The server-seed hash is published before the bet, so Roobet can't change the seed after the fact — any change would produce a different hash than the committed one. That's what makes the game verifiable.