Groomer's Van
Verify any Groomer's Van spin (6×5 cluster-pay slot). HMAC-SHA256(serverSeed, `${utf8ToHex(clientSeed)}:${nonce}`) → outcomeIndex → tumbleSeed via Murmur-style avalanche over (roundIndex, tumbleIndex) → PCG32 PRNG drives weighted symbol picks. Paste the symbol distribution (labels) and symbol weights from your bet's fairness panel to see exactly which symbols landed in which cell.
Frequently asked
Is Duel Groomer's Van really provably fair?⌄
Yes. Duel 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 Duel Groomer's Van round?⌄
Paste the revealed server seed, your client seed and the bet nonce 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 Duel seeds?⌄
On your Duel 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 Duel cheat on Duel Groomer's Van?⌄
Not without getting caught. The server-seed hash is published before the bet, so Duel 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.