Authentication of data in the field of works of art, financial transactions, medical records using blockchain technology; Providing user authentication services using blockchain-based software technology for cryptocurrency transactions; User authentication services using blockchain technology for cryptocurrency transactions, online software applications; Electronic storage of cryptocurrency for others; Providing on-line non-downloadable computer software for use as a cryptocurrency wallet; Providing on-line non-downloadable software for generating cryptographic keys for receiving and spending cryptocurrency; Providing technology information in the field of cryptocurrency; Providing temporary use of non-downloadable web-based decentralized applications (DApps) for cryptocurrency trading, cloud storage of data, web browing; Providing temporary use of on-line non-downloadable computer software for use as a digital wallet; Technological consulting in the field of cryptocurrency
Computer and Scientific