"A bitcoin is a form of digital currency that is starting to become mainstream. It is a worldwide cryptocurrency and digital payment system. The system is peer-to-peer, and transactions take place between users directly, without an intermediary. These transactions are verified by network nodes and recorded in a public distributed ledger called blockchain. Since the system works without a central repository or single administrator, bitcoin is called the first decentralized digital currency."
https://www.bitcoincasino.us/about-btc
https://en.wikipedia.org/wiki/Bitcoin
