authenticator

plural authenticators

1. agentOne who, or something which, authenticates, as

   I did secure a position as a technical advisor and script authenticator on my HBO series, despite the fact that producers didn't think I was qualified for any position.

   2004, N. Kathryn Howard, The Stripper Diaries: A Novel about Passion, page 217

2. One who, or something which, authenticates, as:
   1. agentAn app that uses applied cryptography to prove someone's identity to a network connection.
   2. agentA feature that shows something to be authentic.
   3. agentbroadcastingA person employed to check the accuracy and realism of a script.