Bitcoin is the first decentralized digital currency, created in 2009 by an unknown person using the alias Satoshi Nakamoto. It operates without a central authority or banks, making it a peer-to-peer system for transactions. Bitcoin transactions are verified by network nodes through cryptography and recorded on a public distributed ledger called a blockchain.

Bitcoin's decentralized nature and blockchain technology revolutionized the way we perceive and conduct transactions. Its peer-to-peer system ensures security and transparency. Satoshi Nakamoto's vision continues to shape the future of finance.