OptionalbodySimple plain-text embedded body (oa:bodyValue; alternative to body array)
stable identifier; urn:uuid:<id> fallback unless the client supplies one
A timestamp in xsd:dateTime format.
UUID
OptionalinboxAnnotation's own notifications inbox IRI (caller-assigned; serialized as ldp:inbox)
OptionaliriSet after posting; default RDFa subject and datetime link target
Optionallanguagee.g., a language tag from BCP-47
OptionallicenseA W3C Web Annotation motivation, e.g. oa:replying, or another https://www.w3.org/TR/annotation-vocab/#extending-motivations
Optionalrights
embedded TextualBody objects (value + optional format/language/purpose)