Non-fungible tokens (NFTs) grading and authentication services; web-based services related to NFTs, namely, for providing information about, searching for, grading, authentication and valuation of NFTs; platform as a service (PaaS) and software as a service (SaaS) services featuring software platforms for assessing the quality of and grading NFTs, digital art and collectibles and crypto-collectibles; platform as a service (PaaS) and software as a service (SaaS) services featuring software pla...