Ключевые слова: blockchain, brazil, brazilian, business, coin, community, concept, crypto, cryptocurrency, cryptography, currency, decentralized, digital, distributed computing, economy, electronic, eth, ether, ethereum, exchange, finance, financial, flag, functionality, ico, initial coin offering, international, investor, market, money, open source, payment, personal token, platform, project, public, rio de janeiro, smart contract, south america, stock, system, technology, trade, transaction, virtual, wallet,