Bitcoin is a decentralized digital currency, without a central bank or single administrator, that can be sent from user to user on the peer-to-peer bitcoin network without the need for intermediaries. Transactions are verified by network nodes through cryptography and recorded on a public distributed ledger called a blockchain. Here are some key features and aspects of Bitcoin: It's important to note that while Bitcoin has gained popularity as a form of digital currency and a store of value, it also faces challenges, including regulatory scrutiny, scalability issues, and concerns about its environmental impact due to energy-intensive mining processes. The cryptocurrency space is dynamic, and developments may have occurred since my last knowledge update in January 2022.