I do keep a record of Vins against plaque numbers/reg plates, but only where they have been shared publically. I have not made this information public.
Since becoming registrar, I have come across many people who do not wish to share registration plates or plaque numbers in our register, in fact some people seem down right supsicious of my intensions.
Some people are happy to give me the inforamtion, but do not want it published in our register. I also have a private collection of this information and only share it with James.
For that reason I have not added Vins to the public register. If people are happy to provide this infomration, then fantastic as it will help me cross reference the plaque numbers.