$BTC Bitcoin, the first and most prominent cryptocurrency, leverages blockchain technology for secure, decentralized transactions. Satoshi Nakamoto's 2008 invention eliminated the need for central authorities. Its key attributes include:

* Decentralized nature: Resists control by governments or banks.

* Finite supply: Capped at 21 million coins, potentially increasing scarcity.

* Transparent ledger: Blockchain records all transactions publicly.

* Price volatility: Subject to rapid and significant value changes.

Bitcoin's impact extends beyond digital currency, driving innovation in finance and technology. It functions as a speculative asset, a payment method, and a digital store of value.