Ключевые слова: 2020, anonymous, background, bank, banner, bit, bitcoin, black, block, btc, business, buttons, cards, cash, chain, clutch, coin, computer, copy, cryptography, currency, cyberspace, demand, diagrams, digital, electronic, exchange, finance, financial, future, global, gold, hand, hard, keyboard, market, mining, money, network, numbers, payment, retention, space, success, symbol, touch, trade, trend, value,