Stake Roulette Verifier
Verify the fairness of your Stake.com and Stake.us Roulette game outcomes using cryptographic proof
Understanding Stake Roulette
Game Statistics
How It Works
floor(float × 37) = 0-36
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 Roulette Results
Step 1: Get your seed data from Stake
After your Roulette spin 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
The verifier calculates the winning number using Stake's exact HMAC-SHA256 algorithm.
Step 3: Compare the winning number with your bet
After clicking Verify, you'll see the calculated winning number:
- The number will be between 0 and 36 with its color (green/red/black)
- Compare this with the winning number shown in your Stake bet history
- If they match exactly, the bet 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 Roulette work?
Stake Roulette is European-style with 37 numbers (0-36). The single green zero gives it a 2.7% house edge (97.3% RTP). Red numbers are 1,3,5,7,9,12,14,16,18,19,21,23,25,27,30,32,34,36 and the remaining non-zero numbers are black.
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 Roulette. This verifier works for both platforms - just enter your seeds and nonce from either site.
How is the winning number determined?
HMAC-SHA256 generates a hash from your seeds and nonce. The first 4 bytes are converted to a float between 0 and 1, then multiplied by 37 and floored to produce a number from 0 to 36. This ensures each number has an equal 1/37 probability.
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 bet.
- Typos: Double-check all values are copied exactly without extra spaces.
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 casino games can I verify?
We offer free verifiers for all Stake original games. Try our Dice verifier, Crash verifier, Video Poker verifier, or view all options on our Stake verifiers page.