Ключевые слова: 2019, 2020, anonymous, background, bank, banner, bit, bitcoin, black, block, business, buttons, cards, cash, chain, coin, commerce, computer, crypto, currency, cyberspace, decentralized, digital, dollar, electronic, exchange, finance, financial, finger, global, gold, graphic, growth, hard, hold, ieo, investment, market, mining, money, network, numbers, object, pay, payment, shining, trade, value, virtual,