Authentication of data in the field of works of art using blockchain technology; Authentication of data in the field of nonfungible tokens (NFTs) using blockchain technology; Authentication of data in the field of collectibles using blockchain technology; Computer services, namely, creating an on-line community for registered users to participate in discussions, get feedback from their peers, form virtual communities, and engage in social networking services in the field of nonfungible tokens (NFTs); Computer services, namely, creating an on-line community for registered users to engage in social networking in relation to nonfungible tokens (NFTs); Computer services, namely, providing an interactive web site featuring technology that allows users to consolidate and manage social networks, accounts, and connections to existing and emerging application programming interfaces (APIs); Graphic illustration services; Graphic illustration and drawing services, namely, custom design of graphic images for use as part of nonfungible tokens (NFTs); Graphic illustration for others; Providing temporary use of on-line non-downloadable software for accessing, reading, and tracking information in the field of nonfungible tokens (NFTs) on a blockchain; Providing user authentication services using blockchain-based software technology for cryptocurrency transactions; Providing a social networking website which features technology that enables users to give charitable financial gifts to others; Providing a website that gives users the ability to review various print, photographic, graphic image, and audio and video content and utilize a custom template to provide input, likes, dislikes, edits, changes, modifications, opinions, suggestions, and comments and engage in social, business and community networking