Bitcoin

Bitcoin (BTC) is the world's first and most widely recognized cryptocurrency, created in 2009 by the pseudonymous Satoshi Nakamoto. It operates on a decentralized peer-to-peer network secured by proof-of-work mining. With a fixed supply of 21 million coins, Bitcoin is often referred to as "digital gold" and serves as a store of value and medium of exchange. It remains the largest cryptocurrency by market capitalization and is the benchmark against which all other digital assets are measured.