Definition of "verifier"

The Branding Machine is mainly responsible for computing and writing of the unique and secure product validation data to the tag. The component called product verifier is able to determine whether the product validation data delivered by an RFID tag is authentic and thus indicates the tagged product’s authenticity.

2008, Damith C. Ranasinghe, Peter H. Cole, “Introduction from the editors”, in Networked RFID Systems and Lightweight Cryptography: Raising Barriers to Product Counterfeiting, Springer, page 18