Ключевые слова: anonymous, background, bit, bitcoin, block, blockchain, btc, business, buy, cash, chain, coin, concept, crypto, cryptocurrency, currency, darknet, digital, ebusiness, ecommerce, economy, electronic, female, finance, financial, gold, golden, hand, holding, internet, investment, market, miner, mining, money, net, network, pay, payment, person, sign, symbol, technology, trade, value, virtual, web, woman, worldwide,