Ключевые слова: alphabet, analyzing, background, banking, bitcoin, block, blocks, business, classroom, coin, concept, crowdfunding, currency, data, digital, economy, examining, exchange, expertise, finance, financial, ico, idea, initial, initial coin offering, internet, investment, ipo, letter, market, money, offering, office, public, quarantine, searching, sell, sign, square, stock, success, symbol, teaching, technology, text, token, trade, wood, word,