See [[ https://commons.wikimedia.org/wiki/Commons:Village_pump/Proposals#Raise_awareness_of_OTRS_by_including_it_in_the_Upload_Wizard | proposal at Commons ]]:
OTRS is currently the only tool we have to verify permissions from third-party copyright holders, but most uploaders are not even aware it exists. In the "Release rights" step of the UploadWizard, when "This file is not my own work" is chosen, it currently says:
> The copyright holder published this work with the right Creative Commons license
> Not all Creative Commons licenses are good for this site. Make sure the copyright holder used one of these licenses.
> [license options]
Change that to:
> The copyright holder published or wants to publish this work under a Creative Commons license
> - If the work is already published under that license online add URLs and short quotation of the permission text to the source field above. Also add the tag {{[[https://commons.wikimedia.org/wiki/Template:LicenseReview | LicenseReview ]]}}.
> - If the work is not already published under that license online please follow the steps described at [[https://commons.wikimedia.org/wiki/COM:OTRS | COM:OTRS]] (the copyright holder has to send an email) and add {{subst:[[https://commons.wikimedia.org/wiki/Template:OP|OP]]}} to the source field above.
>Not all Creative Commons licenses are good for this site. Make sure the copyright holder used or wants to use one of the following licenses:
>[license options]