Every REDLINE round's crash point is fixed before betting opens, committed by a published hash. After the round the server reveals the seed. Paste a revealed round below and this page recomputes the exact crash - entirely in your browser, using nothing but the public Web Crypto API. Nothing is sent anywhere.
How it works (anyone can reproduce this):
1. Commit check - sha256(serverSeed) must equal the commit the house published before the round, so the seed couldn't have been swapped after seeing bets.
2. Chain check - sha256(serverSeed) equals the previous round's revealed seed (the whole chain was fixed up front).
3. Crash - u = HMAC_SHA256(key=serverSeed, "crash:"+salt), take the top 52 bits as a fraction in [0,1), then crash = (1 − edge) / u (capped at max, floored to 0.01x). That distribution pins the return-to-player to exactly 1 − edge for any cash-out target - no strategy beats the house, and the house can't beat the math.