I am postdoc working at a university, and I was hired by the PI of a specific project, let us call it Project X.
Apart from working on Project X, when time permits I like to concentrate on my own research, and from time to time I end up writing a paper. Now I have a doubt. If I write a paper that is completely unrelated to Project X, should I still acknowledge funding from Project X?
According to the head of my research group, who formally is my boss, I should do so. However, the answer to this previous post claimed otherwise.
What is the correct way to move forward? Should I simply accept the boss recommendation, or should I instead ask the funding agency directly? I am hesitant to accept because Project X has a very explanatory title and so it would be evident to the reader that it is unrelated to my paper.
I know that some journals have specific guidelines about this. But the problems comes even before proper publication, if one wants to submit a preprint on arXiv.
Thanks in advance for your input.
EDIT. Perhaps "completely unrelated" is too severe a judgment. Certainly the paper lies within the same discipline (mathematics); it deals with some theoretical aspects while the project is applied.