Publishing is about the song itself (the composition), separate from any one recording of it. Here is what we handle when publishing is on.
Registration with a collecting society We declare the works so publishing royalties are collected correctly. In France this means a SACEM registration, which you will see as its own stage on a release ("SACEM registration", then "awaiting validation").
Collecting publishing royalties Beyond streaming payouts, compositions earn royalties through performance and mechanical rights. Publishing is how those get collected and paid to the writers.
Sync and stock licensing We actively look for opportunities to place your music: sync (film, TV, ads, online video) and stock or production-music libraries. These can bring in licence income and expose your music to new audiences, which often lifts streams too.
Who gets paid Publishing follows the songwriter and composer credits on the song. That is why the roles and legal names in your splits matter (see "Why legal names and roles matter for publishing").