Answer:
Block Chain is a system of recording information that makes it difficult or impossible to change, hack, or cheat the system.
A blockchain is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain.
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Answer:
A. the museum can choose a heuristic approach which will achieve a lossless compression, but they cannot be sure that it is the most efficient compression for each image
C. algorithms for lossless compression exist, so the museum can use those to compress the image
Explanation: