Provable fairness
HYPR Rush has two verification paths. Worldwide Crash publishes a commitment for every shared round. Account-based Crash and HYPR Heist use the same HMAC multiplier engine tied to the player seed and nonce. Both can be recomputed in your browser.
Public round commitment, reveal, and independently recomputed crash point.
Shared HMAC-SHA256 formula using the revealed server seed, client seed, and nonce.
Before a worldwide Crash launch, HYPR Rush derives a unique round seedand publishes only its SHA-256 fingerprint. The round seed itself is not sent to the browser while wagers are being accepted.
At launch, betting closes and the round seed is revealed. Your browser checks that SHA-256(revealed seed) equals the earlier commitment, then uses the first 52 bits of that seed with the published 1% house-edge formula to calculate the crash point.
If the seed were changed after wagers closed, the commitment would not match. Record the commitment before launch when independently auditing a round.
Only the SHA-256 commitment is public during the betting window. The round seed remains server-side.
Betting closes before the seed is revealed. The round seed maps deterministically to one crash multiplier.
The revealed seed must hash to the commitment, and the recomputed crash point must match the round.
- Record the commitment displayed on the Crash game while betting is open.
- After launch, open the completed round below and inspect its revealed seed.
- Confirm SHA-256(revealed seed) equals the commitment you recorded.
- Confirm the browser-recomputed crash multiplier matches the completed round.
If the number matches, the round was fair. If it doesn't, something is wrong — please report it and we'll investigate publicly.
Commitment before launch, seed reveal after betting closes.
Crash and Heist verifier
Crash, Reactor, Drop, and Heist share the same fairness family for account and practice rounds. Enter the recorded seed and nonce to verify.
Recalculate a Crash or HYPR Heist result from a revealed server seed, client seed, and nonce. Both games use the same crash-multiplier engine.
HYPR Rush is in Mainnet beta. Live SOL wagering is available in Crash. Reactor, Drop, and Heist are open as practice-credit demos on the arcade floor.
Fairness matters before and after launch. Use the live verifier to inspect commitments, reveals, and recomputed results. Live wagering remains protected by payout exposure limits and operational controls, and may be paused when those safeguards require it.