Downloadable photographs authenticated by non-fungible tokens (NFTs); Downloadable music files authenticated by non-fungible tokens (NFTs); Downloadable computer software for minting non-fungible tokens (NFTs); Downloadable software applications for minting non-fungible tokens (NFTs); Downloadable computer software applications for minting non-fungible tokens (NFTs); Downloadable digital music files authenticated by non-fungible tokens (NFTs); Downloadable image files of handbags authenticated by non-fungible tokens (NFTs); Downloadable image files of jewelry authenticated by non-fungible tokens (NFTs); Downloadable audio recordings featuring music authenticated by non-fungible tokens (NFTs); Downloadable audio recordings featuring songs authenticated by non-fungible tokens (NFTs); Downloadable video recordings featuring avatars authenticated by non-fungible tokens (NFTs); Downloadable software for accessing non-fungible tokens (NFTs) on a blockchain; Downloadable image files of jewellery authenticated by non-fungible tokens (NFTs); Downloadable image files containing trading cards authenticated by non-fungible tokens (NFTs); Downloadable video recordings featuring movie clips authenticated by non-fungible tokens (NFTs); Downloadable digital image files of sneakers authenticated by non-fungible tokens (NFTs); Downloadable computer software for analyzing market information authenticated by non-fungible tokens (NFTs) using blockchain technology; Downloadable virtual collectibles in the nature of music clips authenticated by non-fungible tokens (NFTs) using blockchain technology