<https://wallstreetanalyzer.com/2022/03/30/wisekey-provides-an-update-on-its-patent-application-for-persistent-and-authenticatable-nfts/#breadcrumblist>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://wallstreetanalyzer.com/2022/03/30/wisekey-provides-an-update-on-its-patent-application-for-persistent-and-authenticatable-nfts/>