Ключевые слова: background, bank, banking, bit, bitcoin, black, business, buy, cash, circle, coin, commerce, computer, concept, conceptual, cryptography, currency, digital, economy, electronic, exchange, finance, financial, golden, hand, hold, increase, international, internet, investment, market, metal, mining, modern, monetary, money, network, nugget, object, pay, payment, protocol, shining, symbol, traditional, virtual, web, woman, yellow,