Crypto & Blockchain Projects & Portfolio Practice Test 2026
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Can you solve these mystery puzzles?
When implementing a Proof-of-Work consensus mechanism for a blockchain prototype, which of the following is the PRIMARY cryptographic function used for the mining process?
In a blockchain prototype, what is the primary purpose of a genesis block?
When designing a prototype for a UTXO-based blockchain (like Bitcoin), what must every new transaction explicitly reference to be valid?
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