What is a “cryptographic hash” in blockchain?
a) A mathematical function that converts input into a fixed-length output
b) A block that is encrypted with a private key
c) A key used to generate blocks
d) A program used to mine cryptocurrencies
Answer:
a) A mathematical function that converts input into a fixed-length output
Explanation:
A cryptographic hash is a mathematical function that takes an input and produces a fixed-size string of bytes, which is unique to the input data.