42 Computer programming services for the creation of avatars, character skins, and digital collectibles; Providing online non-downloadable computer software for production, automated and nonautomated creation, and automated and non-automated modification of interactive media in the nature of video clips, photography, music, data, visual effects, digital collectibles and crypto-collectibles featuring and linked to digital and physical footwear, clothing, headwear, bags, backpacks, masks, jewelry, sports equipment, digital animated and non-animated designs and characters, avatars, digital overlays, character skins, art, toys, trading cards authenticated by non-fungible tokens on a blockchain network for access to and use in online environments, virtual online environments, and extended reality virtual environments; Providing online non-downloadable computer programs featuring digital footwear, apparel, headwear, bags, backpacks, masks, jewelry, sports equipment, digital animated and non-animated designs and characters, avatars, digital overlays, character skins, art, toys and trading cards for use in online virtual worlds; Providing online non-downloadable software for electronically trading, storing, sending, receiving, accepting and transmitting interactive media in the nature of video clips, photography, music, data, visual effects, virtual goods, digital collectibles, and crypto-collectibles and featuring and linked to digital and physical footwear, clothing, headwear, bags, backpacks, masks, jewelry, sports equipment, digital animated and non-animated designs and characters, avatars, digital overlays, character skins, art, toys, trading cards authenticated by nonfungible tokens on a blockchain network; Providing user authentication services using blockchain based software technology for digital and physical products; Providing online non-downloadable software and technology solutions for the purpose of product and document authentication and tracking, and brand monitoring and protection, to protect against counterfeiting, tampering, and diversion, and to ensure the integrity of genuine products and documents; Entertainment services, namely, providing interactive online non-downloadable mobile gaming applications