Bitcoin (BTC) is the world`s first cryptocurrency built on distributed ledger (blockchain) with the proof-of-work mechanism that is not backed by any country`s central bank or government, it was founded by "Satoshi Nakamoto", a pseudonym representing an individual or group of individuals, who published the whitepaper in October 31st, 2008. Bitcoins can be used as a digital currency for peer-to-peer electronic transactions and traded for goods or services with vendors who accept Bitcoins as payment https://bitcoin.org.