Provably fair draws

Commitment scheme: before any numbers are revealed, Lodavo generates a 32-byte cryptographic salt and computes: commitment_hash = SHA-256(salt || winning_combination). The commitment hash is published when the draw is created, before anyone may submit number selections and before the first number is revealed. The salt remains secret until all 7 numbers have been revealed. Once both are public, anyone can recompute the hash and confirm it matches. Random number generation uses PostgreSQL's gen_random_bytes() with rejection sampling, producing unbiased, cryptographically secure, unique numbers. It's the same cryptographic process used across the tech industry to guarantee data integrity, adapted to a weekly draw format.

Don’t trust our verification. Run it yourself. Open your browser console or any SHA-256 tool and compute: SHA-256( reveal_salt + winning_combination ). The reveal_salt is the 64-character hex string shown above. The winning_combination is the comma-separated, zero-padded numbers exactly as shown (e.g. “05,23,47,61,78,89,92”). Concatenate them directly with no separator. If the result matches the commitment hash, the numbers were locked before they were revealed.