system
Given the following post, respond as if you're commenting on Reddit:
human
Prof claims first authorship for paper that I wrote 75% of.

Hi everyone, 

I was scrolling through the recent posts, and there was this post about getting screwed out of authorship that generated a great deal of discussion. My story is marginally relevant to that post (also on the issue of authorship) but with major differences which I will now elaborate on. 

Prof is relatively new to the faculty, and not yet tenured. I'm currently the only graduate student at his lab, and the first PhD student to be under him. One advantage of this situation is that I'm often at the frontline of his aggressive pursuit of new studies, collaborations, and publications, and therefore benefit from active involvement. The disadvantage is that this "active involvement" meant skipping sleep to produce whole drafts of manuscripts within days, running and re-running analyses for all the lab's studies (including undergraduates' projects), and stressing over reviewers' requests for revisions. To provide some context, Prof is not at all handy with data analyses (a huge surprise for me, considering that my field is in the area of quantitative science). I often get emails asking me to analyze data ("Can you analyze this and tell me what you find by tomorrow?), without any specifications of the types of analyses required. My job is to figure out how to frame research questions based on the variables, produce interpretable and interesting findings from the analyses, summarize them, and send them to Prof. Thus far, Prof has provided very little intellectual contribution to any of his projects, an observation that has led to past batches of graduate students leaving the lab and his not-so-pretty reputation in the university.

So one day, after I did the analyses and interpretations for a dataset, Prof told me to submit a draft manuscript to him in 3 days. Incredibly stressful, but I met the deadline. Then Prof just said that he would work on it further before sending it to a collaborator. A few months later, I received an email from Prof asking for edits, and the revised manuscript was attached. The introduction part was written largely by Prof, but the rest of the paper remained exactly, word for word, what I had initially written. I was "informed" (by looking at the list of authors in the manuscript) that I would be third author, and Prof would be first. I'm thankful that I get to be in a publication anyway, but I feel like I'm doing much more work than what the first author has contributed. Sure, Prof provided the resources and came up with the research question (mainly a replication of the collaborator's prior work). However, data interpretation (an unexpected finding) was done by me and the collaborator. I also get the feeling that Prof has been trying to block me out. I have to send him all drafts and revisions, which he then sends to the collaborators, and I'm kept out of the loop until there is work to be done. If my input wasn't needed, I wouldn't have known about the order of authorship until the paper was published.

I'm not here to make accusations and I don't think I'm gonna find trouble for this, but just mildly curious whether this is the way authorships operate. There's another paper that I wrote in its entirety, and now I'm wondering if I would be blocked out of the subsequent processes once I complete my job of producing the manuscript.
gpt
Etiquette on authorship is very field-dependent. Some fields just use alphabetical ordering of authors as standard. However, in the majority of science fields, first author is the guy who did the majority of the work (usually grad or post-grad), and final and corresponding author is the guy who raised the majority of the money to do the work and/or who supervised the work.

So it sounds like you are being screwed here, but it also sounds like this is a small portion of a large pattern of being screwed rather than an isolated incident of screwing.