Create an UnknownPCD to encapsulate the serialized PCD, optionally including the caught deserialization error.
Optional error: unknownInformation encoded in this PCD that is intended to be consumed by the business logic of some application. For example, a type of PCD that could exist is one that is able to prove that its creator knows the prime factorization of a really big number. In that case, the really big number would be the claim, and a ZK proof of its prime factorization would go in the PCD#proof.
Uniquely identifies this instance. Zupass cannot have more than one PCD with the same id. In practice this is often a UUID generated by the PCDPackage#prove function.
A cryptographic or mathematical proof of the PCD#claim.
Refers to PCDPackage#name - each PCD must come from a
particular PCDPackage. By convention, this is a string like
'semaphore-identity-pcd', or 'rsa-ticket-pcd'. These type names
are intended to be globally unique - i.e. no two distinct PCD types
should have the same type name.
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The UnknownPCD is a wrapper intended to wrap some other PCD which cannot be properly deserialized into its normal PCD form. The wrapper holds the original data unchanged.
When the wrapper is serialized again, it outputs the original serialized PCD in its original form, with its original type. This is a recovery mechanism for bugs and compatibility problems, which allows the data to be maintained so that it can be deserialized again later by an updated version of code with fixes, or with a new PCD package.