v.establish the authenticity of something

Authenticating Pervasive Devices with Human Protocols
Authenticating Edges Produced by Zero-Crossing Algorithms
Authenticating mobile phone users using keystroke analysis
S.A.: Authenticating pervasive devices with human protocols
Authenticating streamed data in the presence of random packet loss
Method and apparatus for authenticating users
Authenticating Streamed Data in the Presence of Random Packet Loss (Extended Abstract)
Semifragile watermarking for authenticating JPEG visual content
An efficient scheme for authenticating public keys in sensor networks
Computerized system for making payments and authenticating transactions over the internet