Ключевые слова: background, bank, banking, bit, bitcoin, btc, business, cash, circle, coin, compete, concept, crypto currency, cryptocurrency, cryptography, currency, decentralized, digital, ebusiness, economy, electronic, ethereum, exchange, finance, financial, gold, golden, international, internet, isolated, isolated on white, market, metal, miner, mining, money, pay, payment, physical, provider, render, symbol, trade, value, virtual, virtual cash, web, white,