A device implementing a system for authenticating an identity document includes at least one processor configured to receive, from a service provider, a request associated with verifying an integrity of an identity document, and capture, responsive to receiving the request, image data of the identity document. The at least one processor is further configured to generate a representation based on the image data, the representation comprising form factor data of the identity document, and compare the representation with a prior representation of the identity document, the prior representation comprising prior form factor data of the identity document. The at least one processor is further configured to provide, to the service provider, a response to the request based on comparing the representation with the prior representation.