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In a block in a blockchain, what represents a block's unique identifier like a fingerprint? Multiple Choice data hash previous hash proof - of -
In a block in a blockchain, what represents a block's unique identifier like a fingerprint? Multiple Choice data hash previous hash proofofstake 
In a block in a blockchain, what represents a block's unique identifier like a fingerprint?
Multiple Choice
data
hash
previous hash
proofofstake
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DB2 11 The Database For Big Data And Analytics
Authors: Cristian Molaro, Surekha Parekh, Terry Purcell, Julian Stuhler
1st Edition
1583473858, 978-1583473856
