Am 16.01.2014 17:18, schrieb Brueckner, Sebastian:
As we have just introduced ourselves on wikidata-l, we are currently working on
a PubSubHubbub  extension  to MediaWiki. Currently, the extension only
works on MediaWiki articles, not on Wikibase objects. For those articles we are
using the wiki markup as exchange format (using URLs with action=raw), but
currently there is no equivalent in Wikibase.
Jeroen already explained about the canonical JSON format. In the context I would
like to add some information about the URI scheme we use for our linked data
interface, which should also be used for PuSH, I think:
The canonical URI of the *description* of a Wikidata item has the form
<http://www.wikidata.org/wiki/Special:EntityData/Q64>. This URI is
format-agnostic, content negotiation is used to redirect to the appropriate
concrete URL (in a web browser, the redirect will typically take you to the
item's "nromal" page). A format can also be specified directly by giving a
extension, e.g. <http://www.wikidata.org/wiki/Special:EntityData/Q64.json>
In contrast, the canonical URI of the *concept* described by a Wikidata item
follows the form <https://www.wikidata.org/entity/Q64>.
I suggest to use format-agnostic canonical *description* URI for PuSH notifications.
The URI scheme is described at
<https://meta.wikimedia.org/wiki/Wikidata/Notes/URI_scheme>, but please note
that that document was a working draft, and some aspects may be outdated.
Senior Software Developer
Gesellschaft zur Förderung Freien Wissens e.V.