Ключевые слова: abstract, assess, background, bitcoin, blockchain, blogging, brain, business, closeup, coding, coin, conference, crypto, cryptography, currency, dairy, decentralization, digital, double, drawing, employee, engine, european, exposure, financial, freelance, future, global, hands, ico, laptop, man, marketing, memo, modern, money, multi, network, note, offering, pen, sell, sideview, technology, transaction, wallpaper, web, working, world, writing,