A verifiable credential is a specific way to express a set of claims made by an issuer, such as a driver's license or an education certificate. This specification describes the extensible data model for verifiable credentials, how they can…
I & O are not used to avoid confusion with the numbers 1 & 0, used only for private motorcycles. Q is a special letter and is not used on regular plate circulation or used only for motorcycle-tricycle for hire.