After reading this thread I had the question on whether it is possible to verify you have certain information without revealing who you are to others.
After reading this thread I had the question on whether it is possible to verify you have certain information without revealing who you are to others.
You could verify, without transmitting their telephone extension or employee number. You could verify that they are the author of a particular document. I guess you could verify a company is doing a particular action by verifying with a multiple choice question or series of questions.