I read a paper test by Mr. Dubovoy and he mentions 'Carbon Pigment Prints'.
I do Carbon prints. I use real carbon pigment as scraped from a lampshade used on my kerosene lamp. I mix the gelatin, melt and pour and sensitize and contact print the negative using a UV light source. Then soak in warm water for the carbon transfer.
Why don't you call your print Digital carbon inkjet prints?
Trying to fool people is not a good thing. Your prints are not Carbon or Carbon Pigment as traditionally understood in photography.