Set A

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Across
  1. 2. __________ is an arbitrary number that can only be used once.
  2. 4. _____________ is an algorithm that makes the decentralized record keeping more similar to a centralized database.
  3. 5. Bitcoin is based on _________ blockchain.
Down
  1. 1. _____ is a decentralized consensus mechanism that requires members of a network to expend effort solving an arbitrary mathematical puzzle to prevent anybody from gaming the system.
  2. 3. ___________ is an open-source blockchain-based distributed computing platform featuring smart contract functionality.