Duelbits Hi-Lo verifier
Independently check any Duelbits Hi-Lo bet. Hi-Lo asks whether the next card is higher or lower. Each card is a single float over a 52-card deck. Faircheck reveals the exact card so you can verify the sequence you bet on.
Crypto casino and esports book; its originals verify through the HMAC-SHA256 seed/nonce scheme.
Engine: Stake method (HMAC-SHA256) · established 2020 · 9 verifiable games · ↻ 2026-08-14
How to verify Duelbits Hi-Lo
- Reveal the seed. Open Duelbits’s provably-fair panel and rotate your seed pair — this reveals the previous server seed and shows the SHA-256 hash it was committed to before you bet.
- Find the nonce. Each bet on a seed pair has an incrementing nonce. Use the nonce of the exact Hi-Lo round you want to check.
- Paste & verify. Drop the server seed, client seed and nonce into the form above. Faircheck recomputes the card and confirms the seed hash matches.
The Hi-Lo formula
Bytes from HMAC-SHA256(serverSeed, `clientSeed:nonce:round`), converted to floats and mapped per game. The server seed is committed as a SHA-256 hash before the bet and revealed when you rotate seeds.
One float per card is drawn from the HMAC-SHA256 stream.
The float is multiplied by 52 and floored to an index from 0 to 51.
The index maps to a rank (A→K) and a suit (♦♣♥♠) in the standard Stake ordering.
Hi-Lo verification FAQ
Which card order?
Ranks run Ace, 2…10, Jack, Queen, King; suits run diamonds, clubs, hearts, spades — the ordering Stake-method games use.