KENO PROVABLY FAIR VERIFIER

Keno asks you to pick numbers from a grid; the game then draws 10 numbers and pays based on how many you matched. The draw is generated provably-fair from your seed pair, so the exact numbers can be recomputed and verified. Paste your revealed seeds below to check any Keno round.

HOW KENO DRAWS ARE CALCULATED

Keno draws 10 distinct numbers from a pool of 1–40 using the same shrinking-pool method as Mines:

1. Generate one float per draw from the HMAC stream.
2. Start with a pool of [1..40]. For each of 10 draws, idx = floor(float × remaining-pool-size), take that number, remove it from the pool.

Worked example — server seed some server seed, client seed some client seed, nonce 1 draws (sorted) 7, 12, 14, 19, 22, 24, 29, 31, 33, 37.

WHY VERIFY KENO?

Provably fair only protects you if you actually check it. Verifying a Keno round proves the result was computed from the server seed the casino committed to before your bet, combined with the client seed you chose — so the operator could not have altered the outcome after seeing your wager. Spot-checking even a handful of rounds keeps the system honest and removes any doubt during a losing streak.

Want the full picture? The all-games provably fair verifier handles Crash, Dice, Limbo, Roulette, Mines, Plinko and Keno in one place, and our guide on what provably fair gambling is explains the cryptography from the ground up.