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Bitcoin is a digital asset and a payment system invented by Satoshi Nakamoto who published a related paper in 2008 and released it as open-source software in 2009. The system featured as peer-to-peer.
Bitcoin (abbreviation: BTC; sign: ₿) is the most well-known and most traded cryptocurrency for more than a decade. The "satoshi" or "sat" is the smallest unit of Bitcoin, with each satoshi equal to 0.00000001 Bitcoin.
Despite its name, Bitcoin is not a physical coin. It exists purely as digital data on blockchain, a distributed ledger that records all transactions made with Bitcoin. Users can store their Bitcoins in digital wallets, which can be software-based or hardware-based for added security.
As one of the first cryptocurrencies on the market, Bitcoin has often faced skepticism for its value. Yet, it continues to meet expectations, reaching an all-time high of nearly $100,000 in November 2024.