14. What is Blockchain?
Full Marks : 1
It is a decentralised ledger of
all transection across a peer to
peer network,
It is partially a distributed
ledger of some transection
across a peer to peer network
overviewed by a central
authority
It is a distributed ledger of all
transections across a top down
network
It is a technology that enabled
the development of all kinds of
apps which are overviewed by a
centralised network
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Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system. ... Each block in the chain contains a number of transactions, and every time a new transaction occurs on the blockchain, a record of that transaction is added to every participant's ledger.
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A blockchain,[1][2][3] originally block chain,[4][5] is a growing list of records, called blocks, that are linked using cryptography.[1][6] Each block contains a cryptographic hash of the previous block,[6] a timestamp, and transaction data (generally represented as a Merkle tree).
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