$BTC
**Bitcoin (BTC):**
Bitcoin (BTC) is the first cryptocurrency in the world, created in 2009 by a person or group under the pseudonym Satoshi Nakamoto. It is a decentralized digital currency that allows direct transactions between users without the need for intermediaries such as banks. Bitcoin is based on a technology called blockchain, a public and transparent ledger that securely and efficiently records all operations. With a limited supply of 21 million bitcoins, its value has experienced significant volatility, but it has also been considered by many as a store of value and an alternative to traditional currencies. Bitcoin has revolutionized the way we understand money and finance, driving the development of an entire industry of cryptocurrencies and financial technologies.