Wheel Verifier

How digital wheel segments are built

Customization is the selling point of online Wheel. You pick a pocket count (10, 20, 30, or 50 in most implementations) and a risk tier (Low, Medium, High). Payout multipliers then get laid out across the sectors based on that pairing.

All that configurability invites suspicion: are the pockets evenly weighted, or does the operator shuffle sector positions when bets run large? Seed math answers this directly. A provably fair wheel verifier rebuilds each spin from your seeds, and the result either matches your history or it doesn’t.

The formula: Turning seeds into a segment index

Verification takes two steps: derive a uniform fraction from your seeds, then translate that fraction into a pocket number.

1. Generating the segment float

The game hashes your server seed, client seed, and nonce together using HMAC-SHA256. From the output, the first 4 bytes become a decimal fraction U between 0 and 1:

U = Hex_To_Decimal(First_8_Chars) / 4294967296

2. Mapping to the segment count

Multiply that fraction by the total number of segments S — say 10, 20, 30, or 50 — and floor the product to locate the winning pocket:

Segment_Index = Floor(U * S)

The result indexes pockets from 0 up to S - 1.

Data Sandwich: Checking a real 50-segment outcome

A worked case makes the process concrete. Say you played a 50-segment wheel on High Risk, and the pointer stopped on Segment 42 for a 15x multiplier.

Rotate your seeds first, then feed the old credentials into the verifier:

• Server Seed: a8d29b...
• Client Seed: wheel_spinning_win
• Nonce: 12
• Segments Count: 50

Running HMAC-SHA256, the opening 4 bytes reduce to U = 0.852491. Apply the mapping and see what falls out:

Segment_Index = Floor(0.852491 * 50) = Floor(42.624) = 42

Segment 42 — exactly what your game history recorded. Cryptographically fair, confirmed end to end.

Frequently asked questions