Ключевые слова: app, application, asset, bank, banking, bitcoin, black, blockchain, cash, coins, crypto, cryptocurrency, cryptographic, currency, decentralized, digital, distributed, electronic, exchange, finance, financial, fund, hard, icon, invest, investment, isolated, ledger, line, market, mobile, monetary, money, outline, payment, platform, secure, system, technology, thin, trading, transaction, transactional, transfer, virtual, wallet, wealth,