https://app.knowbase.one/vault/rfc/docid/8179
RFC7528: A Uniform Resource Name (URN) Namespace for the Hybrid Broadcast Broadband TV (HbbTV) Association
Internet Engineering Task Force (IETF) P. Higgs Request for Comments: 7528 J. Piesing Category: Informational HbbTV Association ISSN: 2070-1721 April 2015 ...