Ключевые слова: abstract, authentication, bitcoin, blockchain, blue, chain, chainlink, coding, computer, concept, connection, crypto, cryptocurrency, currency, cyber, data, data protection, decentralized, digital, digital currency, distributed, economy, electronic, encryption, finance, financial, fintech, futuristic, glow, glowing, information, innovation, internet, investment, ledger, link, neon, network, pink, privacy, secure, security, smart contract, tech, technology, trading, transaction, verification, violet, virtual,