What is this video upload hack?

Question

Video

Attention, the link is an anime for adults, but I have to attach for an example:
I saw that this site somehow unusually gives the video
https://hanime.tv/videos/hentai/onmyouji-youen-emaki-2
As far as I understand, the video is divided into text files, and they are hosted on a dozen different domains. The list can be seen in DevTools - https://hanime.tv/api/v1/m3u8s/52399.m3u8

#EXTINF:20.186844,
https://db.mortgagefinance.top/2/3/9/3/v1x/segs/b0/2/3Xer3SCvS0FbFS5rHTn3WvG6.html
#EXTINF:15.473789,
https://members.coreaccountancy.xyz/2/3/9/3/v1x/segs/b0/2/q2hUZiNYTTkNxg82F18FJm5B.html
#EXTINF:20.603911,
https://login.myfinancialfutures.xyz/2/3/9/3/v1x/segs/b0/2/WfoFad9xIBS5IucZpPkxHEv6.html
#EXTINF:24.899878,
https://app.futurestrading.top/2/3/9/3/v1x/segs/b0/2/Kh62QR0JmhFhXu6ePn7f30SS.html
#EXTINF:18.518500,
https://db.mortgagefinance.top/2/3/9/3/v1x/segs/b0/2/2PzlsTSsjl3PYgE4pFpTldIS.html
#EXTINF:16.266256,
https://members.coreaccountancy.xyz/2/3/9/3/v1x/segs/b0/2/YT6KlhkqIzp7NrfKf4hNoQu5.html
#EXTINF:19.978289,
https://login.myfinancialfutures.xyz/2/3/9/3/v1x/segs/b0/2/5WYE8FTRCCcrb7S62KB3xYaW.html
#EXTINF:15.223544,
https://app.futurestrading.top/2/3/9/3/v1x/segs/b0/2/5SolqYoZv35IIvUJ0Cgus1Hb.html
#EXTINF:22.230533,
https://db.mortgagefinance.top/2/3/9/3/v1x/segs/b0/2/947jzdcGQhF5UC4bsiIZItld.html
#EXTINF:16.266256,
https://members.coreaccountancy.xyz/2/3/9/3/v1x/segs/b0/2/xUbuNEX57I715uLZoi1w4tfR.html
#EXTINF:18.184833,
https://login.myfinancialfutures.xyz/2/3/9/3/v1x/segs/b0/2/BUnI7kisJDFSHdErOPVgcyGb.html
#EXTINF:15.557211,
https://app.futurestrading.top/2/3/9/3/v1x/segs/b0/2/e8BahwRGjgAU336R8vaFis1n.html
#EXTINF:20.812456,
https://db.mortgagefinance.top/2/3/9/3/v1x/segs/b0/2/yA6PDsnSCBO7dfSIaxcmCsCd.html
#EXTINF:17.434078,
https://members.coreaccountancy.xyz/2/3/9/3/v1x/segs/b0/2/CDiBeHNrv2Wy9SMzazfRD43Q.html

What is it in general?