How does Blockchain technology impact data integrity?

The question is about blockchain
Answer:

The data integrity will be massively improved in that, once recorded on the chain, the data cannot be deleted or altered without detection. That comes about with the incorporation of Cryptographic Hashing: each block would contain a hash of a previous block to come up with a linked chain of transactions. If a block is to be changed, its hash changes and thus breaks the chain; therefore, it would make any tampering apparent and preserve data integrity.

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