$BTC Bitcoin, the first decentralized cryptocurrency, operates on a blockchain, enabling peer-to-peer transactions without intermediaries. Created by Satoshi Nakamoto in 2009, it has a capped supply of 21 million coins, ensuring scarcity. As of June 19, 2025, $BTC trades around $104,714.59 USD, with a 24-hour volume of $35.3 billion and a market cap of $2.08 trillion. Its price has surged 60.51% yearly, despite a recent 4.94% weekly drop. Popular trading pairs include BTC/USD and BTC/FDUSD on exchanges like Binance. Institutional adoption, like MicroStrategy’s $41 billion holding, underscores its growing financial relevance.