Check a Diver or Neon Rush round yourself. Enter the revealed server seed, the client seed and the nonce, and the verifier recomputes the crash point with the same algorithm the game uses. Add the seed hash to confirm it matches what was committed before the round.
Both games use HMAC-SHA256 with the server seed as the key and clientSeed:nonce as the message. The commitment shown before the round is the SHA-256 hash of the server seed.
Diver: take the first 13 hex characters (52 bits) of the HMAC as a number r between 0 and 1. The crash point is floor(100 × 0.96 ÷ (1 − r)) ÷ 100, clamped between 1.00x and 10,000x.
Neon Rush: read the first 4 bytes of the HMAC as an unsigned integer n. The crash point is floor(100 × (232 ÷ (n + 1)) × 0.96) ÷ 100, clamped between 1.00x and 10,000x.
Diver and Neon Rush, whose exact verification algorithm is public in the game client. Other Vinco games verify rounds inside the game; see provably fair.
In Diver, open Provably Fair and paste a round ID to see its seeds and nonce. In Neon Rush, open the round history; seeds are revealed after the server seed rotates.
Neon Rush reveals a server seed only after it rotates to a new one. Until then the round shows its seed hash, and the seed itself is still secret.
No. The calculation runs entirely in your browser with the Web Crypto API.
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