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  1. Categories >> Software >> Cryptography >> Blockchain
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Why it is not possible to edit the data once it is done in a block?

Question Posted / Nardev Kr. Singh Gangwar

Answer Posted / Nardev Kr. Singh Gangwar

Once a transaction is added to a block and the block is added to the chain, it cannot be edited because each block contains a cryptographic hash of the previous block. Changing any information within a block would result in a different hash, which would break the integrity of the chain. This makes the data tamper-proof.

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