Ключевые слова: abstract, anonymous, assets, bank, banking, bitcoin, blockchain, business, cash, coin, commerce, computer, concept, crypto, cryptocurrency, cryptography, currency, cyberspace, digital, dollar, electronic, eth, ether, ethereum, exchange, finance, financial, fraud, global, gold, internet, investment, litecoin, market, mining, money, network, pay, payment, ripple, symbol, technology, trading, transaction, virtual,