Bear Bull Crab (BBC) uses a provably fair system to ensure that game results cannot be manipulated.
Each game outcome is determined by a cryptographic seed that is committed before the game starts, guaranteeing fair and random results that players can independently verify.
How Provably Fair Works
Before each game, the server generates a random seed.
The server calculates a cryptographic hash of this seed and publishes the hash when the game starts.
The game outcome (Bull, Bear, or Crab) is determined using this seed.
After the game ends, the server reveals the original seed.
Players can verify that the game was fair by:
Confirming the hash of the revealed seed matches the pre-published hash.
Re-running the verification algorithm with the revealed seed to reproduce the same outcome.
Win Conditions
The final outcome is a number between 0 and 149. The winning result is determined as follows:
Bear
Outcome< 70
Payout: 2×Crab
Outcome≥ 70and≤ 79
Payout: 14×Bull
Outcome> 79
Payout: 2×
Outcome Generation
The final outcome is generated using a seeded pseudo-random number generator (seedrandom). The server seed fully determines the result, making it reproducible and verifiable.
// Outcome is uniformly selected from the range (0–149)
const minPrice = 0;
const maxPrice = 149;
const priceRange = maxPrice - minPrice + 1;
// Create PRNG from server seed
const prng = seedrandom(serverSeed);
// Generate final outcome
const outcome = minPrice + Math.floor(prng() * priceRange);