Question

​​​​​​​​​​​​Every Bitcoin block begins with the ______ and _______ of the previous block and ends with a proof-of-work.

transaction fee; block reward
public key; private key
NONCE; block reward
hash; timestamp​

Answer 1

Answer: ​​​​​​​​​​​​Every Bitcoin block begins with the timestamp and hash of the previous block and ends with a proof-of-work.

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