Ключевые слова: 2020, anonymous, background, bank, banner, bit, bitcoin, black, block, business, buttons, cards, cash, chain, coin, commerce, computer, cryptography, currency, cyberspace, diagrams, digital, dollar, electronic, eth, exchange, finance, financial, future, global, gold, graphic, keyboard, laptop, lock, market, mining, money, network, numbers, pay, payment, security, shining, sign, toned, touch, trade, virtual,