Providing temporary use of non-downloadable digital media, namely, digital assets, digital collectibles, digital tokens and non-fungible tokens (NFTs); Providing temporary use of non-downloadable virtual goods created with blockchain-based software technology and smart contracts, in the nature of computer programs featuring HVAC accessories marketed to particular use in the indoor gardening industry, namely, metal ducts for air conditioning and heating installations, metal roof wall or roof vents for heating and cooling in residential and commercial buildings, metal hose clamps; air handling systems comprised of air conditioners, air cooling apparatus, and electric space heaters; heating, ventilation and air condition systems comprised of heating installations and air conditioning and ventilation apparatus and instruments; dehumidifiers, humidifiers, air conditioners, heat pumps and electric space heaters; packaged HVAC units, split HVAC units and commercial HVAC units; dampers in the nature of control devices used in air ducts to regulate the flow of air; mounting brackets adapted for HVAC units; air handling systems, namely systems for air distribution composed primarily of ducts made of fabric through which conditioned air is delivered; and non-metal ducts specially adapted for HVAC units. Providing temporary use of non-downloadable computer software for creating, managing, storing, accessing, sending, receiving, exchanging, validating and selling digital assets, digital collectibles, digital tokens and non-fungible tokens (NFTs)