Its actually Value Time Splits (VTS) but that's more for live streams and podcast episodes. Not really what
@HoloKat is doing.
https://podcasting2.org/docs/podcast-namespace/tags/value-time-splitWhat
@Hash Power Music wants is just payment splits for his tracks so that a single zap is split between several people based off of the percentages he enters. Same thing as zap splits on Nostr notes. He also has RSS feeds that already have all of this info in them that other apps are using so entering the same info again is kind of redundant.
The profile thing is basically just a landing page for an artists catalog like any site already has.
Where this all get tricky is that HPM and others are trying to combine Nostr and RSS. RSS for delivery and the tracks metadate and Nostr for the social stuff.
Here's
@Oscar Merry's proposal on combining some of this stuff.
https://primal.net/merryoscar/open-podcast-payments-with-bitcoin-and-nostr