[OSM-legal-talk] Using a WMS imagery with CC-BY4.0

[Paul Norman]

On 7/13/2015 3:09 AM, Simon Poole wrote:
> It is, as you may have seen from previous discussions, not clear if the
> CC 4.0 licences are compatible (with the exception of CC0 naturally)
> with the ODbL and this is likely not an issue that will be resolved
> short term.

To clarify a bit, any CC licenses that are ND or NC are non-open and 
clearly incompatible with the ODbL or any open license. CC BY SA 4.0 is 
currently incompatible, but Creative Commons could change that.

CC BY 2.0, 2.5, and 3.0 are clearly  incompatible, thanks to the 
attribution requirements that can't be met.

CC BY 4.0 has some open questions about compatibility.