Bitcoin note is an online payment system invented by Satoshi Nakamoto, who published his invention in 2008,[and released as open-source software in 2009.
Bitcoin as a form of payment for products and services has grown, and merchants have an incentive to accept it because fees are lower than the 2–3% typically imposed by credit card processors.
Bitcoin transactions and its emission are regulated by an extensive peer-to-peer network. Bitcoin uses a distributed public universal database spread through a decentralized peer-to-peer network that uses digital signatures and is supported by a proof-of-work protocol to ensure security and legitimacy of funds in use.