Ключевые слова: background, balance, bank, banking, bit, bitcoin, black, blockchain, btc, business, cash, coin, concept, crypto, cryptography, currency, dash, ebusiness, economy, electronic, eth, ethereum, exchange, finance, financial, gold, golden, icon, internet, litecoin, ltc, luxury, metal, monero, money, pattern cryptocurrency, pay, payment, ripple, security, trade, virtual, web, xmr, xrp,