Ключевые слова: abstract, background, bank, banking, binary, bit, bitcoin, block, blockchain, business, cash, chain, cloud, code, coin, commerce, communication, computer, concept, crypto, cryptocurrency, currency, data, digital, dollar, economy, electronic, exchange, finance, financial, fintech, future, icon, information, internet, investment, ledger, market, money, network, payment, security, symbol, technology, trade, transfer, virtual,