Background: I'm an undergrad math major, starting my third year of college soon. This summer, I worked on a reading project (some graduate-level math topics) under the guidance of a professor from a foreign institution (all interaction was online.) Besides reading, I also prepared the solutions' manual of a significant portion of the textbook I was reading (not readily available on the internet, so definitely a good deal of original effort involved here.)
The issue:
I wish to put this on my Curriculum Vitae, but I'm not sure how to.
The professor hasn't been very responsive with regard to any recognition for the project either, though they have showered a lot of verbal praise (trust me - everything went great.) Of course, I'm grateful for whatever I learned over this summer, but also it seems important to have some sort of concrete recognition of the same for obvious reasons.
Did I make a mistake by not discussing this with the professor in advance? In any case, if reading projects of the kind that I described above are generally recognized, what should be my course of action at this stage (or can nothing be done)?
Thank you!