Ключевые слова: altcoin, bitcoin, blockchain, business, buy, cartoon, chain, circle, coin, commerce, cryptocurrency, currency, digital, electronic, ethereum, exchange, finance, financial, flat, future, global, growth, illustration, internet, investment, isolated, litecoin, many, market, metal, mining, monero, money, pay, payment, profit, ripple, scheme, security, set, sign, symbol, system, technology, trade, transaction, virtual, web, zcoin,