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How Are Blocks of Data "Chained" Together to Ensure the Integrity

Question 131

Multiple Choice

How are blocks of data "chained" together to ensure the integrity of transactions?


A) The hash of the previous block is written to the header of the current block
B) The ID of the previous block is stored in the current block
C) A public key is stored in each block for data decryption
D) The hash of the genesis block is kept in all block headers

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