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Groomer's Van

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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.