https://bitcoin.org/bitcoin.pdf
Bitcoin is a cryptocurrency, a digital asset designed to work as a medium of exchange that uses cryptography to control its creation and management, rather than relying on central authorities. The history of Bitcoin started with the invention and implemented by the presumed pseudonymous Satoshi Nakamoto, who integrated many existing ideas from the cypherpunk community.
https://en.wikipedia.org/wiki/History_of_Bitcoin
