Authentication of data in the field of human resourcing, recruiting, legal advice, accounting, trading currencies, payment systems, NFT marketplace, cryptocurrency wallet using blockchain technology; Electronic storage of cryptocurrency for others; Information technology consulting services; Providing on-line non-downloadable computer software for use as a cryptocurrency wallet; Providing temporary use of on-line non-downloadable software for accessing, reading, and tracking information in the field of human resourcing, recruiting, legal advice, accounting, trading currencies, payment systems, NFT marketplace, cryptocurrency wallet on a blockchain; Providing user authentication services using blockchain-based software technology for cryptocurrency transactions; User authentication services using blockchain technology for human resourcing, recruiting, legal advice, accounting, trading currencies, payment systems, NFT marketplace, cryptocurrency wallet