Shuffle Roulette Verifier

Verify the fairness of your Shuffle.com and Shuffle.us Roulette game outcomes using cryptographic proof

Bet Information

Understanding Shuffle Roulette

Game Statistics

Wheel Type European
Numbers 0-36 (37 total)
House Edge 2.7%
Return to Player 97.3%
Verification Client-side

How It Works

1 HMAC-SHA256 generates hash from server seed, client seed, and nonce
2 Hash is converted to a random value between 0 and 1
3 Result calculated as: floor(value × 37) giving 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.

No Data Collection No Server Requests

How to Verify Shuffle Roulette Results

Step 1: Get your seed data from Shuffle

To verify a Roulette bet, you need three pieces of data:

  • Server Seed (Unhashed): After the roulette round completes, go to your bet history on Shuffle. Click on the bet to view details and find the revealed server seed.
  • Client Seed: Found in your Shuffle account settings or bet details. You can use Shuffle's default or set your own custom seed.
  • Nonce: Each bet has a unique nonce number. Find it in the bet details of the specific roulette spin you want to verify.

Note: The server seed is only revealed after the round ends, ensuring fairness.

Step 2: Enter your data in the form above

Paste your data into the verification form:

  • Enter your Client Seed exactly as shown on Shuffle
  • Enter the Server Seed (Unhashed) - this is the revealed seed, not the hash
  • Enter the Nonce for the specific roulette spin you want to verify

The verifier calculates the result using Shuffle's exact HMAC-SHA256 algorithm.

Step 3: Compare the result with your bet

After clicking Verify, you'll see the calculated winning number:

  • The result will be a number between 0 and 36
  • Compare this with the winning number shown in your Shuffle 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

What type of roulette wheel does Shuffle use?

Shuffle uses a European roulette wheel with numbers 0-36 (37 total numbers including single zero). The house edge is 2.7%, which is lower than American roulette (which has both 0 and 00).

Does this verifier work for both Shuffle.com and Shuffle.us?

Yes! Both Shuffle.com (crypto casino) and Shuffle.us (sweepstakes) use identical provably fair algorithms for Roulette. This verifier works for both platforms - just enter your seeds and nonce from either site.

What is the house edge in Shuffle Roulette?

Shuffle Roulette has a 2.7% house edge (97.3% RTP) due to the European wheel configuration with a single zero. This means the expected return to player is 97.3% over time.

How does Shuffle generate the winning roulette number?

Shuffle uses HMAC-SHA256 to combine the server seed, client seed, and nonce. The resulting hash is converted to a number between 0-36, ensuring a provably fair and verifiable outcome for each spin.

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.