Ключевые слова: abstract, background, blockchain, business, businessmen, code, coin, commerce, concept, crypto, cryptocurrency, cryptography, currency, digital, digitalnote, ecommerce, electronic, exchange, finance, futuristic, group, hand, honeycomb, icon, industrial, internet, man, meeting, miner, mining, money, net, network, online, pay, payment, shopping, sign, software, symbol, technology, trade, transaction, virtual, wallet, web, world, xdn team,