Ключевые слова: bank, banking, bitcoin, bitcoins, blockchain, business, cash, chart, commerce, community, conceptual, crisis, currency, cyberspace, deal, decline, economy, electronic, exchange, finance, financial, flag, gold, golden, government, growth, hold, international, internet, investment, investor, korea, korean, market, money, national, network, pay, payment, ripple, shopping, south korea, stack, stock, technology, trade, trading, value, virtual,