Apologies in advance if this is fanning the flames on the currently ongoing license flamewar but I have a (hopefully) innocent query on the matter.
Last year I asked what was the plan exactly for removing any CC-BY-SA content left in the database after the now-scheduled changeover: http://lists.openstreetmap.org/pipermail/legal-talk/2008-December/001778.html There's one closed issue that indirectly deals with this: http://wiki.openstreetmap.org/wiki/Open_Data_License/Closed_Issues#Features_touched_by_multiple_contributors.2C_not_all_of_whom_sign_up_to_new_terms But the implementation plan doesn't seem to mention anything specific about how the data will be removed: http://wiki.openstreetmap.org/wiki/Open_Data_License/Implementation_Plan#Week_13 So my question is: 1. The closed issue I referred to contains the text "OSMF counsel does not believe" on something that seems to have fundamental significance to how the transition will be performed. Specifically the question of (addressed in my December 2008 mail) how we determine whether ODbL licensed works are derived from things still under the CC-BY-SA in February. The OSMF counsel seems to suggest that we only have to worry about this on a per-object basis, i.e. if there are some CC-BY-SA-only edits in the history of a given node/way/relation but I'd have thought we'd also have to worry about the case where someone has traced hundreds of amenity=* nodes from the layout of what's now a CC-BY-SA-only road network. But OSMF counsel thinks it's "not necessary to remove nearby or adjoining elements". I know the OSMF contacted outside legal counsel to comment on the ODbL itself but has it solicited a second pair of eyes on these open/closed issues? It would be interesting to know whether other lawyers take such a narrow view of what constitutes a derived work. 2. Is anyone working on the technical side of the CC-BY-SA-only data removal, e.g. filtering the planet to throw out objects which have CC-BY-SA-only data in their history? I haven't seen anything on dev@ about this or on the wiki. What's the plan? _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk