Shortly,bitcoin is protocol that consists of two parts. Firstis cryptocurrency, called bitcoin, that can be used as amedium of exchange, exchange and maintenance of costbeyond control by some central jars and other organs. Thesecond part is the electronic piring payment systemwith the decentralized public register that is named «Chainletof blocks».

Protocol processes, checks and writes down in thedecentralized public register the successive blocks oftransactions between users in an exchange on emission ofsome sum of cryptocurrency and commission for realizationof transactions.

As cryptocurrency of bitcoin has prospects to develop inthe global environment of exchange, but it can not happen.And the «chainlet of blocks» already declared oneself as areally powerful innovation and in sense of her mathematicaldesign, and in sense of the system of stimuli providing herfunctioning.

A trust to this decentralized pay system was formed due toher cryptographic properties based on mathematics. Theyare based on the well-proven formula, but not on a trust tosome central jars. There is not a necessity to trust eachother, to have bank accounts or credit cards, have an accessto the reliable financial infrastructure and laws. Users musttrust mathematical bases of «chainlet of blocks» only.