On Fri, Jul 31, 2015 at 7:34 PM, rupert THURNER rupert.thurner@gmail.com wrote:
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Therefor allow me come back to my original question which I d love to have
an answer from the wmf legal department, and cc-by expert readers: independent of this case, is there a technical possibility to put amateur reusers in future on a safe ground. Without the need of education. By automatically adding author and license info into the metadata of the image. If this is not enough attribution we should strive to have this kind of attribution accepted in a future version cc license.
For a short answer, I think there is no way that attribution which only appeared within image metadata would be regarded as legally adequate under current CC licenses. Such metadata is not sufficiently discoverable to meet standards for "reasonable" attribution under the few cases that have addressed the issue.
-Robert Rohde