Bitcoin (abbreviation: BTC; sign: ₿) is the first decentralized cryptocurrency. Based on a free-market ideology, bitcoin was invented in 2008 by an unknown entity under the pseudonym of Satoshi Nakamoto. [5] Use of bitcoin as a currency began in 2009, [6] with the release of its open-source implementation.

The price of Bitcoin (BTC) is $83,601.67 today as of Mar 12, 2025, 9:27 pm EDT, with a 24-hour trading volume of $25.74B.

2024年5月21日 · Bitcoin is a decentralized digital currency that you can buy, sell and exchange directly, without an intermediary like a bank. Bitcoin’s creator, Satoshi Nakamoto, originally described the...

Get the latest Bitcoin (BTC / USD) real-time quote, historical performance, charts, and other cryptocurrency information to help you make more informed trading and investment decisions.

Bitcoin wallets keep a secret piece of data called a private key or seed, which is used to sign transactions, providing a mathematical proof that they have come from the owner of the wallet. The signature also prevents the transaction from being altered by anybody once it …

Bitcoin is an innovative payment network and a new kind of money. Find all you need to know and get started with Bitcoin on bitcoin.org.

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