Ключевые слова: background, bank, banking, bit, bitcoin, btc, business, buy, cash, coin, commerce, concept, crypto, cryptocurrency, cryptography, currency, digital, dollar, ebusiness, economy, electronic, exchange, finance, financial, future, gold, golden, hand, hands, hold, international, internet, investment, market, metal, mining, monetary, money, net, network, object, pay, payment, sign, success, symbol, trade, trading, virtual, wallet, web,