Software as a Service(SAAS), namely hosting software for use of others for use in enabling proof of authenticity, ownership, possession of articles, namely, retail products and collectibles using near field communication (NFC) tags by minting non-fungible tokens (NFTs) and cryptographically linking them to NFC tags; providing online services in the nature of non-downloadable computer software for use of others for use in enabling proof of authenticity, ownership, possession of articles, namel...