BC.Game Blackjack Verifier
Verify the fairness of your BC.Game Blackjack initial card deals using cryptographic proof
Understanding BC.Game Blackjack
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 BC.Game Blackjack Results
Step 1: Get your seed data from BC.Game
To verify a Blackjack bet, you need three pieces of data from BC.Game:
- Server Seed (Unhashed): Navigate to your bet history, click on the Blackjack bet, and look for the "Fairness" or "Verify" section to reveal the unhashed server seed.
- Client Seed: Found in the same verification section. This is your custom seed or BC.Game's default.
- Nonce: Each bet has a unique nonce identifier shown in the bet details.
Note: You can only verify bets after the server seed has been revealed.
Step 2: Enter your data in the form above
Paste your data into the verification form:
- Enter your Client Seed exactly as shown on BC.Game
- 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 initial card deal using BC.Game's exact sliding window algorithm.
Step 3: Compare the result with your bet
After clicking Verify, you'll see the calculated initial card deal:
- The verifier shows 4 cards: 2 for player, 2 for dealer
- Compare these cards with the initial deal shown in your BC.Game bet history
- If they match exactly, the initial deal was provably fair
Note: This verifies the initial 4-card deal only, not subsequent hits or stands.
Frequently Asked Questions
What does this BC.Game Blackjack verifier check?
This verifier checks the initial 4-card deal in BC.Game Blackjack: 2 cards for the player and 2 cards for the dealer. It uses BC.Game's sliding window algorithm with HMAC-SHA256 to verify that the cards were dealt fairly based on your seeds and nonce. Note that it only verifies the initial deal, not subsequent hits or stands.
How does BC.Game Blackjack card dealing work?
BC.Game uses a sliding window algorithm to select cards from a 52-card deck. For each card (index 0-3), the system generates HMAC-SHA256 hash using the server seed, client seed, nonce, and card index. The hash is processed through the sliding window to extract a card position from the remaining deck. Cards are dealt alternately: Player card 1, Dealer card 1, Player card 2, Dealer card 2.
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 hash shown before the bet.
- Wrong nonce: Each bet has a unique nonce - verify you're using the exact nonce for that specific bet.
- Seed pair mismatch: The seeds must be the pair that was active when the bet was placed.
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.
Can I verify other BC.Game casino games?
Yes! We offer verifiers for 20 BC.Game original games including Dice, Limbo, Crash, Mines, and more. Each game uses BC.Game's provably fair system with unique algorithms. Browse all available verifiers on our BC.Game verifiers page.