Ключевые слова: 2020, anonymous, background, bank, bit, bitcoin, black, block, business, buttons, cash, chain, charts, coin, computer, copy, crypto, cryptography, currency, cyberspace, decentralized, electronic, exchange, finance, financial, finger, future, global, gold, grip, hand, hard, hold, internet, investment, keyboard, lock, market, mining, money, network, numbers, people, protection, security, space, touch, trade, world,