42 Providing a website featuring on-line non-downloadable software that enables users to view and purchase downloadable digital art images and sports-related goods authenticated by non-fungible tokens (NFTs); Platform as a service (PAAS) featuring computer software platforms for the exchange of downloadable digital art, digital sports-related goods, and digital collectibles being digital art images and sports-related goods, all of which are authenticated by NFTs; Software as a service (SAAS) services, namely, hosting software for use by others for trading and exchanging of downloadable digital art images and sports-related goods authenticated by NFTs and digital collectibles being graphic images, video, and text relating to art and sports; Providing temporary use of non-downloadable web-based decentralized applications (DApps) for the exchange of downloadable digital art and sports images authenticated by NFTs and digital collectibles being graphic images, video, and text relating to art and sports; Providing a website featuring temporary use of non-downloadable software for collecting, buying, selling and trading digital collectibles and other digital items being graphic images, video, and text relating to art and sports; Providing a website featuring on-line non-downloadable software that enables users to buy, sell, collect and trade digital collectibles and other digital items being downloadable digital graphic images, video, and text relating to art and sports authenticated by non-fungible tokens (NFTs); Providing temporary use of on-line non-downloadable software and applications for collecting, buying, selling and trading digital collectibles and other digital items being downloadable digital graphic images, video, and text relating to art and sports authenticated by non-fungible tokens (NFTs); operating on-line marketplaces featuring downloadable digital graphic images, video, and text relating to art images and sports authenticated by blockchain-based non-fungible assets being non-fungible tokens (NFTs); Design and development of digital assets being downloadable digital graphic images, video, and text relating to art images and sports authenticated by non-fungible tokens (NFTs)