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Bitcoin is a decentralized digital currency that operates without a central bank or government. Created in 2009 by the pseudonymous Satoshi Nakamoto, it uses blockchain technology to record all transactions transparently and securely. Bitcoin is mined through a proof-of-work system, where powerful computers solve complex problems to validate blocks. With a capped supply of 21 million coins, Bitcoin is often seen as "digital gold" and a hedge against inflation. It allows peer-to-peer transactions across borders without intermediaries. Despite volatility, Bitcoin has gained widespread acceptance as both a speculative asset and a potential future of money in the digital economy.