Verizon Digital Media Services Inc.

Drnc Holdings, Inc.

Revathi Sabanayagam

Harkeerat Singh Bedi

Reed Morrison

Devender Singh

Provided is an unobtrusive client verification system with one verification devices having processors that are configured to receive a first request from an unverified client device, generate a random number in response to receiving the first request from the unverified client device, define a set of expressions as a browser challenge problem that evaluates to an answer specified by the random number, encrypt the answer within an answer token, provide the browser challenge problem with the answer token to the unverified client device, receive a second request with a solution to the browser challenge problem and the answer token from the unverified client device, and verify the unverified client device in response to the solution matching the answer that is decrypted from the answer token provided with the second request.

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Torrance, CA, United States of America

Revathi Sabanayagam