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A blockchain network consists of decentralized nodes, cryptographic hashing, consensus mechanisms, and smart contracts. It ensures data integrity and security through immutable data storage, cryptographic hashing, and distributed consensus algorithms.
The key components of a blockchain network are:
Decentralized Ledger: Records transactions across a network of computers, ensuring transparency and immutability.
Consensus Mechanism: Validates and agrees upon the order and validity of transactions, maintaining consistency across the network.
Cryptography: Secures transactions and identities using cryptographic techniques like hashing and digital signatures.
Blockchain ensures data integrity and security through:
Immutable Records: Once a transaction is recorded on the blockchain, it cannot be altered or deleted, ensuring data integrity.
Distributed Consensus: Consensus mechanisms prevent malicious actors from altering the blockchain’s history by requiring network agreement on transaction validity.
Cryptographic Security: Cryptography secures transactions and identities, protecting against unauthorized access and fraud.