Floor Structure Identification

I’ve only seen this system in my area maybe once before.
Usually I see cinder block on footers, Beams and joists.
This on the other hand, appeared to be footers with PT 4x4 posts, 2) 2x8 beams with a piece of OSB sandwiched between them supporting a T&G subfloor.
I know this must have a name…Does anyone know what this design is called, and any known problems with it?

Post and Beam Framing using T&G Planking.

Thanks Marcel! It’s kind of an oddity in these parts.

The individual footers may settle at different rates over time. Check interior doors. And note any floors that appear to be sloped.