The CrossRef click-through service allows publishers to provide supplementary licenses online, and allows researchers to review them. When researchers make text and data mining requests they can include a token which Publishers can use to check which licenses the Researcher has agreed to.
Although the click-through service is designed for text and data mining, it is optional and we expect that most publishers won’t need to use it.
How it works
The CrossRef click-through service is a central place for publishers to store supplementary licenses, and for researchers to browse and review licenses.
Here’s an overview: