A Time Stream response can be returned at any url. In this example,
/status endpoint that's the url for a stream
of Twitter-like status posts.
The response is a regular HTTP response that includes the most recent post to the stream, plus some additional metadata via HTTP headers.
There are three headers required for the Time Streams protocol:
Time-Streams-Version is the version of the Time Streams
protocol that the server's using.
Post-Time is the logical time for this post. That's
typically the time it was created, but it can be something else, like
the date associated with the resource. (Imagine a timeline, for example.)
It uses the HTTP-date format.
Link is an existing standard HTTP header described in
the Web Linking RFC.
The "self" relation is the permalink for this post, and the "previous"
relation is the url for the previous post in the stream, if there is one.