AFAIK, If the scheme is designed properly, then no. The attestor only knows who they have issued certificates to and the verifier only knows that they have a us

AFAIK, If the scheme is designed properly, then no. The attestor only knows who they have issued certificates to and the verifier only knows that they have a user that has been verified by that user. Neither the attestor or the verifier can link the two any further than that, even if they collaborate.