$BTC Bitcoin, commonly abbreviated as $BTC, is a decentralized digital currency that operates without the need for a central bank or single administrator. Created in 2009 by an unknown individual or group of people using the pseudonym Satoshi Nakamoto, it allows peer-to-peer transactions to be conducted securely and verified through cryptography by network nodes using blockchain technology. Bitcoin has grown significantly in popularity and value, becoming a prominent digital asset and a topic of interest within the financial markets, offering both opportunities and challenges for investors and users worldwide.