vouch card?
look! up in the sky! it's a bird! it's a plane! NO! it's vouchman!
i gotta buy me one of them there superhero accounts so i too can be a vouchman and we can have a vouch wars.
There is nothing wrong with Senior + or trusted members asking for vouch copies as that establishes trust. Its sort of a job of a wine taster who does it to establish the quality of the wine and sort of vouch for it.