35 Providing a website featuring an online marketplace for exchanging goods and services with other users; Providing an online marketplace for buyers and sellers of goods authenticated by non-fungible tokens (NFTs); Provision of an on-line marketplace for buyers and sellers of goods and services; Provision of an on-line marketplace for buyers and sellers of downloadable digital art images authenticated by non-fungible tokens (NFTs); Provision of an on-line marketplace for buyers and sellers of downloadable digital art images, music, video clips, 3d assets, in-game assets authenticated by non-fungible tokens (NFTs); Provision of an on-line marketplace for buyers and sellers of downloadable image files authenticated by non-fungible tokens (NFTs); Provision of an on-line marketplace for buyers and sellers of downloadable music files authenticated by non-fungible tokens (NFTs); Provision of an on-line marketplace for buyers and sellers of downloadable video files authenticated by non-fungible tokens (NFTs); Provision of an online marketplace for buyers and sellers of downloadable image files authenticated by non-fungible tokens (NFTs); Provision of an online marketplace for buyers and sellers of downloadable music files authenticated by non-fungible tokens (NFTs); Provision of an online marketplace for buyers and sellers of goods and services; Provision of an online marketplace for buyers and sellers of downloadable digital art images authenticated by non-fungible tokens (NFTs); Provision of an online marketplace for buyers and sellers of downloadable digital art, images, music, video clips, 3d assets, in-game assets authenticated by non-fungible tokens (NFTs); Provision of an online marketplace for buyers and sellers of downloadable digital art images, music, video clips, 3d assets, in-game assets authenticated by non-fungible tokens (NFTs) authenticated by non-fungible tokens (NFTs); Provision of an online marketplace, using blockchain technology, for buyers and sellers of downloadable digital art images authenticated by non-fungible tokens (NFTs); Provision of an online marketplace, using blockchain technology, for buyers and sellers of downloadable digital art, images, music, video clips, 3d assets, in-game assets authenticated by non-fungible tokens (NFTs); Provision of an online marketplace for buyers and sellers of downloadable video files authenticated by non-fungible tokens (NFTs)