Embodiments of the disclosure relate to verifying a watermark of an artificial intelligence (AI) model for a data processing (DP) accelerator. In one embodiment, a system receives an inference request from an application. The system extracts the watermark from an AI model having the watermark. The system verifies the extracted watermark based on a policy. The system applies the AI model having a watermark to a set of inference inputs to generate inference results. The system sends a verification proof and the inference results to the application.

Systems and methods for accessing digital content using electronic tickets and ticket tokens are disclosed. A system can include a user device includes a processor, a network interface, and memory configured to store an electronic ticket, and a ticket token. A processor can be configured by an application to send a request for digital content and receive a ticket token from a merchant server. A ticket token can be generated by a DRM server and associated with an electronic ticket that enables playback of the requested digital content. A ticket token can be sent to a DRM server. An electronic ticket that enables playback of requested digital content can be received. Digital content associated with the electronic ticket can be requested. Requested digital content can be played back in association with an electronic ticket.