$BTC O **Bitcoin (BTC)** is the first and most well-known cryptocurrency in the world, created in 2009 by a person or group under the pseudonym **Satoshi Nakamoto**. It emerged as a response to the 2008 financial crisis, with the aim of creating a decentralized, transparent, and censorship-resistant financial system, without the need for intermediaries like banks or governments. Bitcoin operates on a **blockchain**, an immutable public ledger where all transactions are verified by miners using a **proof of work (Proof of Work)** system.

BTC is often referred to as "digital gold" due to its scarcity (there is a maximum limit of 21 million coins) and because it is viewed as a store of value by many investors. It can be used both as a means of payment and as a speculative asset. Its volatility, however, is high, which poses risks but also opportunities for traders. Over the years, Bitcoin has gained institutional adoption, been integrated into ETFs, and considered legal in some countries. Even with criticisms related to energy consumption, BTC remains a symbol of financial freedom and technological innovation.