The credits collapse the mystery.
Across public music-credit databases, the same division appears repeatedly: Braiden Rice is credited for composition, lyrics, or songwriting, while SONOFPOLLUX is credited as the main artist and executive-producer identity. That pattern is visible on releases spanning 2025 and 2026, not just a single track.
The cleanest reading is that Braiden is the human author operating the project, while SONOFPOLLUX is the authored public machine around the work. Pollux then becomes a third layer: the character who can say what neither a legal credit line nor a normal artist biography can.