What is Blockchain?
A Blockchain is a constantly growing ledger(file) that keeps a permanent record of all the transactions that have taken place, in a secure, chronological, and immutable way. It can be used for the secure transfer of money, property, contracts, etc. without requiring a third-party intermediary like bank or government.
Blockchain is the backbone of the most famous cryptocurrency named Bitcoin. It is a peer to peer electronic cash system and a decentralized network which allows users to make transactions directly without the involvement of third-party to manage the exchange of funds.
Where is a blockchain stored?
The blockchain can be either stored as a flat file or as a database.
Principle on which blockchain technology is based on?
It enables the information to be distributed among the users without being copied.

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