Link live stream m3u8 encrypt or hide

I have this m3u8 url live stream hls (https://live.obslivestream.com/autenticatvmux/index.m3u8), and I want nobody to see it. I bought the player and did all the steps that this guide says (https://foliovision.com/player/video-security/video-protection-methods/signed-urls-hls-protection), but it doesn’t work for me. Can you help me?

When I go to explore the source code of the page, it keeps appearing.
https://snipboard.io/HQ4nEV.jpg
Link player: https://cumo.pe/testplay/