Stake HiLo Verifier
Verify the fairness of your Stake.com and Stake.us HiLo card game outcomes using cryptographic proof
Understanding Stake HiLo
Game Statistics
How It Works
100% Private
All verification happens entirely in your browser. Your seeds and bet data never leave your device - we don't collect, store, or transmit any information.
How to Verify Stake HiLo Results
Step 1: Get your seed data from Stake
After your HiLo round ends, you need three pieces of data:
- Server Seed (Unhashed): Go to Settings → Fairness on Stake. Click "Unhash" next to your active server seed to reveal it.
- Client Seed: Found in the same Fairness settings page. You can use Stake's default or set your own.
- Nonce: Each bet has a unique nonce. Find it in your bet history by clicking on the bet.
Note: You can only verify bets made before you unhash the server seed.
Step 2: Enter your data in the form above
Paste your data into the verification form:
- Enter your Client Seed exactly as shown on Stake
- Enter the Server Seed (Unhashed) - this is the revealed seed, not the hash
- Enter the Nonce for the specific bet you want to verify
- Set the Number of Cards to match how many were dealt in your game
The verifier generates each card using Stake's exact HMAC-SHA256 algorithm.
Step 3: Compare the cards with your game
After clicking Verify, you'll see the calculated card sequence:
- Each card shows its value (A-K) and suit (♠♥♦♣)
- Compare the sequence with the cards shown in your Stake bet history
- If all cards match exactly, the game was provably fair
If results don't match, double-check you're using the unhashed server seed and correct nonce.
Frequently Asked Questions
How does Stake HiLo work?
HiLo is a card prediction game where you guess whether the next card will be higher or lower than the current card. Each correct prediction multiplies your payout based on the probability. Every card is drawn from a full 52-card deck with all four suits (Hearts, Diamonds, Clubs, Spades), so the same card can come up again, and the game has a 99% RTP.
Does this verifier work for both Stake.com and Stake.us?
Yes! Both Stake.com (international) and Stake.us (US sweepstakes) use identical provably fair algorithms for HiLo. This verifier works for both platforms - just enter your seeds and nonce from either site.
How are the cards determined?
HMAC-SHA256 generates bytes from your seeds, your nonce and a cursor, and each card takes the next 4 bytes as a float between 0 and 1 (one 32-byte hash covers 8 cards, then the cursor moves up by one). The float times 52, rounded down, gives an index from 0 to 51. The 52 indexes run from 2 up to Ace, with the four suits (♦, ♥, ♠, ♣) inside each rank.
Why doesn't my verification result match?
Common reasons for mismatched results:
- Using hashed server seed: You need the unhashed (revealed) server seed, not the hashed version.
- Wrong nonce: Each bet has a unique nonce - verify you're using the exact nonce for that game.
- Wrong card count: Make sure the number of cards matches your actual game.
Is my bet data safe when using this tool?
Absolutely. All verification happens 100% client-side in your browser using JavaScript. Your seeds, nonces, and bet data never leave your device - we don't collect, store, or transmit any information to our servers.
What other card games can I verify?
We offer free verifiers for all Stake card games. Try our Video Poker verifier for dealt hands, or explore other games like Diamonds. View all options on our Stake verifiers page.