Jackpot.bet Originals verifier
Paste a revealed Jackpot.bet server seed, client seed and nonce. This page recomputes the selected Original with Jackpot’s HMAC-SHA256 float stream — not Stake, Shuffle or BC.Game mappings. It is not on the unified /verify page yet. After the page loads, nothing is sent to a server.
What this page implements
HMAC-SHA256 + cursor
Jackpot keys HMAC-SHA256 with the revealed server seed and signs clientSeed:nonce:cursor. Each digest yields eight 4-byte big-endian floats, then the cursor increments. Same stream as Stake-style generateFloats.
SHA-256 commitment
Before you play, Jackpot shows only the SHA-256 of the server seed. After you rotate, paste the revealed seed here. This page hashes it again so you can confirm it matches the commitment you were shown.
Nonce starts at 0
The Seeds tab labels nonce as the number of plays on the current pair, starting at 0. Every Originals bet consumes a nonce — including the Global Jackpot.
Not the unified calculator
Stake, Shuffle, BC.Game and the other live tabs stay on /verify. This URL is Jackpot.bet-only so you can check the numbers against jackpot.bet before any tab is added there.
Does any of my data leave this page?
No. After the page loads, hashing runs through the browser Web Crypto API. Seeds are not posted anywhere.
Why are Top Dollar, Pinball and Cases only showing floats?
Those titles use the same HMAC stream, but Jackpot’s reel-stop and case-colour tables are not published in the Fairness drawer. This page reports the floats rather than inventing a strip. Dice, Mines, Keno, Plinko, Wheel, cards and the rest use mappings that match Jackpot’s own verify response.
My Limbo multiplier has more decimals than the in-game widget.
Jackpot Limbo is 0.99 divided by the first float (1% house edge). This page shows the raw value and an 8-decimal floor. Compare the first HMAC float if the displayed point disagrees by a last-place digit.
Why is this not on /verify yet?
So you can check these numbers against Jackpot’s in-game Fairness → Verify tab first. Once that matches, the same engine can be added as a tab on the unified page.