Downloadable virtual goods, namely, computer programs featuring the creation and trade of digital collectibles using blockchain-based software technology and smart contracts; downloadable digital media, namely, digital collectibles created with blockchain-based software technology and smart contracts; downloadable computer software for managing digital collectible services, a market for transactions, and a registry using blockchain-based software technology and smart contracts for digital collectibles; Downloadable computer software for use in the safeguarding of digital files, including audio, video, text, binary, still images, graphics and multimedia files; Downloadable computer software featuring digital audio and video, digital collectible and sports trading cards for use on computers, smart phones, tablets and/or digital personal assistant; Digital photo frames for displaying digital pictures, video, gifs, art, NFTs, and other digital collectibles; downloadable entertainment software for collection, distribution, and use of digital collectibles which have a permanent, identifiable record on the blockchain; downloadable mobile application for providing access to online digital collectibles and application tokens for use in online virtual worlds