$BTC , or Bitcoin, is the world’s first and most well-known cryptocurrency, launched in 2009 by the anonymous creator Satoshi Nakamoto. Built on a decentralized blockchain network, Bitcoin offers a secure and transparent method of peer-to-peer digital transactions without the need for intermediaries like banks. It operates on a limited supply of 21 million coins, making it a deflationary asset often compared to digital gold. Bitcoin has become a major asset in global financial markets, influencing everything from tech innovation to monetary policy debates. In 2025, $BTC continues to play a central role in the crypto ecosystem, with investors watching its price movements closely amid economic uncertainty and increasing institutional adoption.