2022/23 100mm Schlumpf hub. I’d love to have a 125mm hub, but they don’t exist with 32 holes. No pics yet, but I can take some this afternoon 
The brake performs “meh”:
Same things for this second hilly ride, the rotor bents during the descents. It rubs against the pads and slows the wheel. That’s not a big issue when you want to brake, but that is when you want to ride uphill. I’m also afraid it will wear my pads way faster than an usual rotor.
Regarding the braking power, it seems OK. Please note I use one of the most powerful brake (Shimano Saint), so you may encounter braking power issues with other brakes.
@aws has sent me a new rotor he has modified to fit my hub. I still had no time to install it properly, though.