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How does the security of a block works?



How does the security of a block works?..

Answer / Punit Kumar

The security of a block in blockchain primarily comes from three aspects: hash function, nonce, and proof-of-work or proof-of-stake. A block is considered secure when it contains a hash value that meets certain criteria (e.g., the hash value starts with a specific number of zeroes), ensuring that the data within the block hasn't been tampered with. This process requires significant computational resources to alter, making the blockchain resistant to malicious attacks.

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