discussion of the Creative Commons Metadata work

[Chris Snyder <csnyder AT chxo.com>]

Hello Creative Commons folks,

Is there a standard HTTP-header that is used for communicating license 
metadata with an HTTP server response?

Like a mime-type header, only it's a license-type header?

I think this would be an imporant way to supplement the RDF metadata 
that appears next to, eg, an image reference in HTML, but is not 
included in the HTTP response for the image itself.

Is anyone working on a standard like this, and if not, may I propose 
one? I can think of a number of tasty uses for it, such as a browser 
option not to display "overly-restricted" content, or checks on what 
images can be used in comments on a website.

Also, is there developer mailing-list that I can join?

Thank-you,

Chris Snyder
http://chxo.com