Ключевые слова: abstract, amercia, background, bank, banking, binary, bitcoin, building, business, cash, chain, china, communication, concept, connect, connection, cryptographic, currency, data, digital, display, economy, electronic, euro, europe, exchange, fin, fin tech, finance, financial, future, graph, information, investment, japan, ledger, market, mesh, modern, money, network, payment, phone, security, sharing, technology, transfer, world, yen,