$BTC Bitcoin (BTC) is a decentralized cryptocurrency that allows secure and transparent transactions through a peer-to-peer network. Launched in 2009 by Satoshi Nakamoto, it uses blockchain technology to record all transactions. Its supply is limited to 21 million coins, creating scarcity and positioning it as a deflationary asset. Bitcoin has become a store of value, similar to gold, and is used for purchases, investments, and remittances. However, its price is highly volatile and subject to regulations that vary by country, adding uncertainty to its global adoption.