I hate to be late to the party, but I have many varieties, and if they fruited for 10 years would be hard to prove if they were what they were "supposed" to be.
First you need a confirmed, guaranteed plant from which to make standardized pictures to measure everything else by. And then you need to verify the pictures by growing them under a variety of conditions, so that you know your standard is stable across soil, climate, fertilizer, etc. And then everyone has to agree that that is, in fact, what you say it is and that it is now the official standard.
Have done enough cross climate tests to know that you have little to no chance of success, even on the climate tests.
I accept cuttings at face value, grow them out, fruit them, and post the pix at Figs 4 Fun. When I sell a cuttings, it is based solely on the premise that the pix represent what the cuttings will produce and with the proviso that "your results may vary" for dozens of different reasons. No intention to defraud, but no way to guarantee anything, with the possible exception of Panache.
As a small example, anyone have a definitive standard photo of the 100+ Belle Clare varieties? Any know what a true "Fico Nera Paese" Looks like? A "Fico Bianco Fioroni"?
Or see Laverne Nursery and check out the "Black Jack" which uses an unmistakable "Black Madeira" pix taken by moi. And the pix on the individual page is a pix of a Black Jack from the Figs 4 Fun Collection, as well, and is not of any fruit from any of their trees.
Don't know what the answer is, but don't expect to find it in my lifetime. We all have to suck it up and live with the mess that is the world of figs.