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• n  one who determines authenticity (as of works of art) or who guarantees validity

• If the sealed authenticator inside the safe matches the incoming message, the officers would take out separate firing keys and go to consoles about twelve feet apart.
• A Major League Baseball authenticator checked the ball, put a little sticker on it, took a picture, then that was it.
• After a Major League Baseball authenticator put a hologram on the ball, Murphy and Kamal rushed to their hotel near Fisherman's Wharf and checked out.

• appraiser

News & Articles

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• Strata Week: Wireless body area networks bring humans into the Internet of Things
  Collaborative sensor networks of humans, and your body may be the next two-factor authenticator There has been much coverage recently of the Internet of Things, connecting everything from washers and dryers to thermostats to cars to the Internet. Wearable sensors …
  June 7, 2013 - O'Reilly Media

Quotes

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• Cody Ross in Palm Beach Post
  I put it in my back pocket,Ross said. "All of a sudden they were like bombarding me. The authenticator said 'I thought 24 (Maybin) had it.' I said 'he did but he flipped it to me.' I said, 'Here it is. Make sure you give it back to me so I...
• Charlton Jimerson in Houston Chronicle
  Barry Waters called me into the office and gave me the stern look,Jimerson said. "I thought I was in trouble already. He told me he had got the MLB authenticator stickers on the actual ball and the lineup card, so that's real