Uniqueness Check State Ref
interface UniquenessCheckStateRef
Representation of a state reference. This type might also be attached to some of the error types and returned through the client service. This representation does not depend on any specific ledger model and is agnostic to both the message bus API and any DB schema that may be used to persist data by the backing store.
T0DO CORE-6629: This class can be removed once the UTXO ledger model gets merged