A PCD representing a proof of ownership of an EdDSA-signed ticket. The prover is able to prove ownership of a ticket corresponding to their semaphore identity, and optionally prove the ticket corresponds to one of a list of valid events. The prover can keep their identity private, and selectively reveal some or none of the individual ticket fields. To harden against various abuses, the proof can be watermarked, and can include a nullifier.
Note: this PCD subsumes all functionality of zk-eddsa-ticket-pcd and can replace it over time.