Ключевые слова: background, bank, banking, banknote, bitcoin, blockchain, btc, business, cash, chain, coin, commerce, communication, computer, concept, crypto, cryptocurrency, cryptography, currencies, currency, data, digital, dollar, dollars, economy, electronic, exchange, finance, financial, gold, golden, graph, internet, investment, market, money, network, pay, payment, profit, rate, screen, security, stock, success, symbol, tablet, technology, trade, virtual,