Ключевые слова: abstract, background, bit coin, bitcoin, bitcoin mining, bitcoin transfer, block chain, blockchain, blue, bright, btc, business, chart, coins, color, concept, crypto, crypto currency, cryptocurrency, cryptography, currency, data, digital, ecommerce, economy, entering, finance, financial, global, graph, graphic, growth, illustration, investment, light, mainstream, market, marketing strategy, mining, modern, money, payment, profit, profit and loss, profit graph, record, rise, stock, trade, trade show,