Bitcoin is the first decentralized cryptocurrency, created in 2009 by an unknown person using the alias Satoshi Nakamoto. It operates on a peer-to-peer network and has a limited supply of 21 million coins. Bitcoin transactions are recorded on a public ledger called the blockchain.

The fundamentals of Bitcoin remain strong, its decentralized nature and limited supply making it an attractive store of value. The blockchain technology that underlies it has far-reaching implications for finance and beyond.