ARID: Apparently Random Identifier (ur:arid)
Boolean (true or false)
CBOR data in hex
Binary byte string in hex
Date (ISO 8601)
Cryptographic digest (ur:digest)
Envelope (ur:envelope)
Known Value (number or string)
Numeric value
UTF-8 String
Uniform Resource (UR)
URI
UUID
Wrapped Envelope (ur:envelope)
Supported data types for envelope values.