Re: RDF Update Feeds + URI time travel on HTTP-level

Hi Chris,

On Fri, Nov 20, 2009 at 1:07 PM, Chris Bizer <> wrote:
> Hi Michael, Georgi and all,
> just to complete the list of proposals, here another one from Herbert Van de
> Sompel from the Open Archives Initiative.
> Memento: Time Travel for the Web
> The idea of Memento is to use HTTP content negotiation in the datetime
> dimension. By using a newly introduced X-Accept-Datetime HTTP header they
> add a temporal dimension to URIs. The result is a framework in which
> archived resources can seamlessly be reached via the URI of their original.
> Sounds cool to me. Anybody an opinion whether this violates general Web
> architecture somewhere?

IMO, it does.  The problem is that an HTTP request with the
Accept-Datetime header is logically targeting a different resource
than the one identified in the Request-URI.  Accept-* headers are for
negotiating the selection of resource *representations*, not
resources.  Resource selection should always be handled via


Received on Monday, 23 November 2009 04:21:14 UTC