Stake Pump Verifier

Verify pop positions and shuffled outcomes in your Stake.com and Stake.us Pump game results

Bet Information

Results update as you type.

Understanding Stake Pump

Game Statistics

Return to Player 98%
House Edge 2%
Pump Pool 25 steps
Difficulty Levels 4

How It Works

1 HMAC-SHA256 generates bytes from server seed, client seed, nonce
2 Fisher-Yates algorithm shuffles 25 positions (0–24)
3 The lowest of the first N positions (N set by difficulty) is the pop point

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 Stake Pump Results

Step 1: Get Your Seeds from Stake

After completing a Pump game on Stake.com or Stake.us, access your bet details. Click on the "Fairness" or "Provably Fair" option to reveal your client seed, the unhashed server seed, and the nonce used for that specific bet.

Step 2: Enter Seeds and Select Difficulty

Copy your client seed, server seed (unhashed), and nonce into the form above. Select the difficulty level you played (Easy, Medium, Hard, or Expert) to match the number of pop positions generated.

Step 3: Compare Pop Positions

The verifier will display the pop point (the lowest of the first N shuffled positions, where the balloon bursts) and the full shuffled order, using the Fisher-Yates shuffle algorithm. Compare these results with your actual game outcome to confirm fairness.

Frequently Asked Questions

How does Stake Pump determine pop positions?

Stake Pump uses the Fisher-Yates shuffle algorithm seeded by HMAC-SHA256. The algorithm shuffles positions 0–24, converts them to 1–25, and based on difficulty (Easy=1, Medium=3, Hard=5, Expert=10), takes the first N positions, and the balloon pops at the lowest of them.

What do the difficulty levels mean in Pump?

Each difficulty level sets how many of the balloon's 25 pump positions are pops: Easy has 1 pop, Medium has 3 pops, Hard has 5 pops, and Expert has 10 pops. The balloon bursts at the lowest of them, so higher difficulty means more risk but also higher potential multipliers per safe pump.

What is the RTP of Stake Pump?

Stake Pump has a 98% RTP (Return to Player), meaning a 2% house edge. The payout multipliers are the true mathematical odds of avoiding a pop at each pump, less that 2% edge.

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

Yes, both Stake.com (crypto casino) and Stake.us (sweepstakes casino) use identical provably fair algorithms for the Pump game. This verifier works with seeds from either platform since the underlying HMAC-SHA256 Fisher-Yates implementation is the same.

Where do I find the unhashed server seed?

The unhashed server seed is revealed only after you rotate your seed pair on Stake. Go to Settings > Fairness, click "Rotate" or create a new seed pair, and the previous server seed will be unhashed. You can then verify all bets made with that seed pair.

Is my seed data safe with this verifier?

Absolutely. This verifier runs entirely in your browser using JavaScript. Your seeds are never transmitted to any server. All cryptographic calculations happen locally on your device, ensuring complete privacy.