Ключевые слова: abstract, amercia, background, bank, bitcoin, building, business, cash, chain, chart, china, city, cityscape, communication, concept, connection, cryptographic, currency, data, digital, display, economy, electronic, euro, europe, exchange, fin, fin tech, finance, financial, future, graph, information, invest, investment, japan, japan yen, market, modern, money, network, sharing, technology, trade, trading, yen,