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what is Bitcoin ?

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Bitcoin is a decentralized digital currency that was created in 2009 by an unknown person or group of people using the pseudonym Satoshi Nakamoto. It operates on a technology called blockchain, which is a distributed ledger that records all transactions across a network of computers.

Here's how Bitcoin works:

1. Transactions: When someone sends Bitcoin to another person, the transaction is recorded on the blockchain. Each transaction is verified by network nodes through cryptography and added to a block, which is then added to the blockchain.

2. Mining: Bitcoin transactions are processed and validated by miners, who use powerful computers to solve complex mathematical problems. Miners compete to solve these problems, and the first one to do so gets to add a new block of transactions to the blockchain and receives a reward in the form of newly minted Bitcoins.

3. Decentralization: Bitcoin is decentralized, meaning it is not controlled by any government or central authority. Instead, it relies on a network of nodes (computers) that work together to maintain the integrity of the blockchain and validate transactions.

4. Security: Bitcoin transactions are secured using cryptographic techniques, making it difficult for hackers to alter the blockchain or steal funds. Each user has a private key that allows them to access their Bitcoin holdings, and transactions are signed with this key to prove ownership.

5. Limited Supply: There is a finite supply of Bitcoin, with only 21 million coins that can ever be mined. This scarcity is designed to ensure that Bitcoin retains its value over time.

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