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Blockchain

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Ledger with a list of records or blocks which are linked using cryptography

Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data

A transaction data is generally represented as a merkle tree root hash

3 Types: Public, Private and Consortium

The network maintains consensus through: Proof of Work, Proof of Stake, Leased Proof of Stake, and Proof of Importance (network activity)

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