Ключевые слова: background, banking, bill, binary, bit, bitcoin, blockchain, business, cash, code, coin, commerce, concept, credit, cryptocurrency, cryptographic, currency, digital, dollar, economy, electronic, euro, exchange, finance, financial, fintech, future, international, internet, investment, market, monetary, money, pay, payment, phone, return, saving, security, sharing, shopping, sign, symbol, technology, trade, transfer, trust, virtual, wealth,