I am a mathematics PhD scholar (particularly in number theory). I have a question in mind.
In general, a PhD scholar doesn't have much publications (or no publication) upto a certain stage. Suppose I don't have a good CV or personal webpage to track me, except some information in research-gate/arxiv.
Suppose I think one of my research papers is good enough to communicate in some top most journals (e.g., Q_1 quartile in web of science). I also suppose most of the math journals follow single-blind peer review process.
Should I worry about my previous publication record when I try to communicate my research paper in a top journal?
Do the referees give think it is less important or become skeptical of the work of an unestablished researcher?
If this really happens, how to avoid such situations? Should I post my whole CV (academic record) in researchgate?