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Please Describe the Issue:

ActivityStreams 2.0 Terms, in §3. Property Definitions, contains a list of AS2.0 property names, each of which links to its definition in Activity Vocabulary.

The following properties appear in this list, but have broken links:

• attachments
• author
• downstreamDuplicates
• orderedItems
• provider
• rating
• tags
• upstreamDuplicates
• verb

I searched in the following documents to see if I could find any mention of these properties:

• Activity Vocabulary
• Activity Streams 2.0
• ActivityPub
• JSON Activity Streams 1.0

Here's what I found:

1. The following properties are only mentioned in JSON Activity Streams 1.0:

   • attachments
   • author
   • provider
   • rating
   • tags

   They are not mentioned at all in any of the AS 2.0 documentation that I can see (except for this list). There are other properties in AS1.0 that were removed but which are not mentioned in this list.

   Suggested fix: remove these from the list.

2. The following properties...

   • downstreamDuplicates
   • verb
   • upstreamDuplicates

   ...are mentioned in Activity Streams 2.0, but only as being deprecated:

   This specification deprecates the upstreamDuplicates and downstreamDuplicates properties defined by Activity Streams 1.0 and does not provide a replacement.
   ...
   The terms displayName, verb, title and objectType should be treated as reserved terms that should not be used within Activity Streams 2.0 documents.

   There are other deprecated properties (like objectType) mentioned in the same place which are not mentioned in this list.

   Suggested fix: remove these from the list.

3. Finally, orderedItems is not mentioned in Activity Vocabulary except in examples.

   However, it is documented in Activity Streams 2.0 in §4.6 Collection.

   Suggested fix: update the link.