$BTC Bitcoin (BTC) is a decentralized digital currency created in 2009 by an anonymous figure, Satoshi Nakamoto. Operating on a blockchain, it enables peer-to-peer transactions without intermediaries like banks. BTC’s supply is capped at 21 million coins, with mining producing new coins and securing the network. As of June 15, 2025, its price fluctuates, influenced by market demand, adoption, and macroeconomic factors. Bitcoin is used for payments, investments, and as a store of value, often called "digital gold." Its volatility attracts traders, while its fixed supply appeals to those seeking inflation-resistant assets. Regulatory scrutiny and environmental concerns around mining energy use remain challenges. Adoption continues growing globally.