I have built a software tool that recognizes text from images of handwriting. I want to make the code public under a permissive license (like Apache 2.0), but with the stipulation that all transcriptions and images be shared to a (publicly accessible) datastore.
I intend to use these data to further improve the software tool for everyone. Is there an open source license that includes such a stipulation (i.e. you must allow the tool to upload your inputs to a publicly accessible datastore) or does this necessitate an entirely new form of license? I understand GPL et al cover changes to code, but I don't see any mention of a data sharing policy.