How can you see what a splined hub looks like

i want to know if this unicycle has a slplined hub but i cant tell can if it dus please help me?

either post a link for it or say what it is or post a picture of it

and try not to triple post stuff

it is a custom bilt uni with many different parts and im not sure what kind of hub it is, it closely resembles the DX hub but im not sure if it is. can you explain what it will look like ?

Take the crank arm off, look at the axle that the crank connects to, if it is not square but is a circle with lots of spikes around it then it is splined.
I couldn’t find any good pictures but this is kinda what the axle should look like:

thats a KH … that somewhat resembles the DX hub