$BTC BTC coins, or Bitcoin coins, are physical or digital representations of Bitcoin, the world’s first decentralized cryptocurrency. Unlike traditional currency, Bitcoin exists digitally on a blockchain, a secure and transparent ledger. However, some companies produce physical BTC coins, often made of metal, with a Bitcoin logo and a QR code linked to a digital wallet. These are mainly collectibles rather than functional currency. Bitcoin itself is stored and transferred electronically using wallets and blockchain technology. Its value fluctuates based on market demand, adoption, and investor sentiment. Bitcoin is often used for investments, transactions, and as a hedge against inflation.