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Verify any round using the server seed, client seed (both revealed after crash) and round number.
This is the exact algorithm used to determine each round's crash point. You can run this yourself to verify any round.
// ── Provably Fair Crash Point Algorithm ──
// Uses HMAC-SHA512: key = serverSeed, data = clientSeed-nonce
function generateCrashPoint(serverSeed, clientSeed, nonce) {
const data = clientSeed + '-' + String(nonce);
// 1. HMAC-SHA512(serverSeed, clientSeed-nonce)
const hash = HMAC_SHA512(serverSeed, data);
// 2. Take first 8 hex characters → integer
const h = parseInt(hash.slice(0, 8), 16);
// 3. House edge: ~1% instant bust
const e = 2 ** 32;
if (h % 101 === 0) return 1.00;
// 4. Calculate crash point
return Math.max(1.00,
Math.floor((100 * e - h) / (e - h)) / 100
);
}
// The public hash shown before betting:
// publicHash = SHA-256(serverSeed)
//
// After crash, serverSeed + clientSeed are revealed.
// Verify: SHA-256(serverSeed) === publicHash
// Then run the formula above to confirm the crash point.The public hash and client seed are shown before betting. After crash, the server seed is revealed so you can verify: HMAC-SHA512(serverSeed, clientSeed-nonce) determines the crash point.
Make sure you read this — all wagers are final!
A plane takes off and the payout multiplier rises from 1.00x. It could go down at any time — maybe at 1.01x, maybe past 100x. Cash out before the plane goes down to lock in your winnings.
1. Choose how much to wager and pick your auto-cashout target. This acts as your safety net — if you get disconnected, you'll automatically cash out at this multiplier.
2. Once the round begins, the plane lifts off and the multiplier starts climbing.
3. Hit Cash Out (or tap Spacebar) before the plane goes down. Your payout is calculated as your bet × the multiplier at the moment you cashed out.
Bets cannot be reversed. Once the round is live, your wager is locked in. Double-check your bet size and auto-cashout before the countdown ends.
Always set auto-cashout! If your connection drops or you close the window mid-round, the auto-cashout is the only thing standing between you and a total loss.
The highest payout for a single bet is 50B. If your winnings hit that ceiling, you'll be cashed out automatically — regardless of how high the multiplier keeps going.
If the betting window already closed, tap Bet (Next Round) to line up your wager. It'll be submitted automatically when the next round opens.
Each round uses HMAC-SHA512 cryptographic hashing with a client seed to guarantee fairness. Before betting, a public hash (SHA-256 of the server seed) and a random client seed are displayed. The crash point is determined by HMAC-SHA512(serverSeed, clientSeed-nonce) — neither the server nor players alone can predict or control the outcome.
After the round crashes, the server seed is revealed so you can independently verify the result. Seeds and results are logged in the crash-results channel on Discord. You can also use the built-in Provably Fair verifier (the shield icon in the top bar) — including a View Source button to see the exact algorithm.
Good luck and fly high! 🚀