Why is hashing needed for public blockchains such as Bitcoin? a- It's collision-proof and therefore is more efficient. b - It makes the search process over the blockchain more efficient. c- It's impossible to reverse, therefore enhancing trust in the system. d- It is energy-intensive to compute and therefore deters hacking attempts.
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Hashing is a process that takes an input (or 'message') and returns a fixed-size string of bytes. The output, typically a 'digest', represents concisely the input data. This process is fundamental in the operation of blockchain technology, including public Show more…
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