Ключевые слова: abstract, anonymous, bank, banking, bit, bitcoin, blockchain, business, buy, cash, code, coin, coins, commerce, computer, concept, conceptual, crisis, crypto, cryptocurrency, currency, digital, economy, exchange, face, field, finance, financial, girl, golden, growth, internet, investment, isolated, light, lightcoin, litecoin, market, money, payment, silver, symbol, technology, trade, virtual, web, white,