https://www.w3.org/TR/annotation-protocol/

Is basically REST plus LDP.

Annotations are stored in Annotation Containers.

Annotation Containers and Annotations support:

• GET
• HEAD
• OPTIONS

and may support

• PUT
• POST
• DELETE

Paging

The protocol supports Activity Streams paging, which is, not coincidentally, the same model used by the IIIF Presentation API.

I'll illustrate the rest by means of examples.