Provably FAIR on-chain

Instant-win scratch tickets

Pick a card.
Scratch it.
Win HIVE.

Every outcome is a SHA-256 hash of your transaction. No draws, no waiting, no rigging. Pay in HIVE, win in HIVE, paid out instantly.

Verify a Card

Enter a card ID to independently verify its outcome.

How verification works

Every scratch card outcome is determined by a SHA-256 hash derived from your transaction data. You can reproduce the calculation to confirm the result was fair.

  1. A seed is generated from the transaction ID, account name, and block number
  2. The seed is hashed with "win_check" and compared against the win probability
  3. If winning, the prize amount is derived from hashing the seed with "prize_amount"
  4. All inputs are on the public blockchain, so anyone can verify