I would certainly hope a madam doesn't make a query to some sort of license database. That seems like a remarkable operational risk. Frankly, this whole thing

I would certainly hope a madam doesn't make a query to some sort of license database. That seems like a remarkable operational risk. Frankly, this whole thing seems like a perfect recipe for blackmail. "Just give me an incontrovertible and non-repudiatable proof of who you are and I'll get right on providing you with an illegal and potentially embarassing service."