[1] URL scheme

http://www.arib.or.jp/english/html/overview/doc/2-STD-B24v5_4-2p3-1.pdf

[2]

ARIB TR-B39 (2016-07-25 17:01:00 +09:00) http://www.arib.or.jp/english/html/overview/doc/4-TR-B39v1_0-1p4.pdf#page=342

nvramURI アクセス権を設定する広帯域 CS 事業者専用領域 URI を示す文字列
(nvrams ://<broadcaster_id>;cs_local/)

[3] web-bml/nvram.md at master · otya128/web-bml · GitHub, 2022-03-21T03:21:26.000Z https://github.com/otya128/web-bml/blob/master/documents/nvram.md