Hi, as you may know Europeana has been sponsoring special categories within Wiki Loves Monuments competitions since 2011, and have also run the pilot project Wikipedia Loves Public Art. Europeana is now interested in harvesting from Wikimedia Commons to Europeana the images resulting from those projects, that this means the imported images will be displayed as items in the portal and  in API-responses. A thumbnail (max 200 px width) will be created and cached by Europeana but any larger image displayed or linked to will be a link/hotlink. But one doubt has been raised:

Europeana metadata is CC-O Licencsed but...what about Wikimedia Commons metadata?  Images can be licensed separately (CC-BY-SA, CC-BY, PD...): does the related metada keeps the same license for the metadata or the metadata is considered CC-O ? Most of the metadata related with these WLM pic is referred to public heritage lists information.

Following http://commons.wikimedia.org/wiki/Commons:Welcome remains unclear if Europeana needs to ask each individual Wikimedia Commons user before doing the harvesting.

Which would be the easiest way of doing it? What do you think about it?