Ключевые слова: background, bank, bitcoin, block, blockchain, business, chain, coin, commerce, communication, cryptocurrency, currency, data, decentralized, design, digital, distributed, dollar, economy, electronic, encryption, exchange, finance, financial, game, gold, graphic, happy, illustartion, illustration, internet, invest, investation, iota, market, miner, mining, modern, money, nem, neo, network, online, rich, stellar, symbol, technology, transaction, virtual,