Mintcase.

Provably fair

Every box open is decided before you even press the button — and you can prove it. We publish a SHA-256 hash of a secret server seed. Your roll comes fromHMAC_SHA256(serverSeed, clientSeed:nonce)mapped onto the box's weighted odds. When you rotate your seed, the old server seed is revealed so you can recompute every past roll and confirm nothing changed.

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