Ключевые слова: abstract, background, bitcoin, blockchain, business, call, cell, coding, coin, conference, connections, crypto, cryptography, currency, decentralization, digital, double, drawing, engine, equipment, exchange, exposure, form, future, ico, interface, internet, market, money, multi, network, offering, opportunity, payment, phone, sale, search, service, smart, sms, social, spend, tablet, technology, telephone, transaction, trust, web, wireless, woman,