Bitcoin is a decentralized digital currency created in 2009 by an anonymous 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 Bitcoin transactions. Bitcoin can be used for various purposes, including as a medium of exchange, a store of value, and a speculative investment. It's known for its limited supply, with a maximum of 21 million Bitcoins that can ever be mined, which makes it deflationary in nature. Bitcoin transactions are verified by a network of computers (miners) using complex mathematical algorithms, making it secure and resistant to censorship.

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