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Blockchain and Cryptocurrencies

Blockchain is a secure and immutable technology for storing information that consists of a chain of transaction blocks.

How It Works:

1. Transactions are submitted.

2. Network nodes validate them.

3. Transactions are added to a new block and published to the entire network.



Benefits:

Transparency: All transactions are visible.

Security: Altering information is difficult.

Decentralization: There is no central authority.


Applications: Cryptocurrencies like Bitcoin and Ethereum are used for purchases, investment, and smart contracts.