Ключевые слова: abstract, accounting, analysis, bank, banking, blockchain, business, chart, city, communication, computer, concept, cryptocurrency, currency, data, digital, dollar, economy, exchange, finance, financial, fintech, future, global, graph, information, innovation, internet, investment, iot, management, market, marketing, mobile, money, network, online, payment, profit, security, smart, smartphone, stock, tech, technology, things, trading, transfer, world,