Ключевые слова: abstract, analysis, backdrop, background, bank, banking, binary, bitcoin, black, block, blockchain, blue, business, buy, cash, chain, code, commerce, communication, computer, concept, crypto, cryptocurrency, cryptography, currency, data, digital, ecommerce, economy, electronic, exchange, finance, financial, flow, gold, golden, information, internet, investment, market, modern, money, network, paper, security, sign, symbol, technology, trade, virtual,