Ключевые слова: anonymous, background, bank, banking, bit, bitcoin, blockchain, btc, business, buy, coin, commerce, concept, conceptual, crypto, cryptocurrency, cryptography, currency, digital, economy, electronic, electronics, exchange, fiber, finance, financial, global, golden, growth, internet, investment, keyboard, law, legal, mainboard, market, mining, money, optics, pay, payment, salary, shop, shopping, stock, store, technology, trade, value, virtual,