A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

For questions on reprints supplied to authors (especially) by publishers after the publication process is complete. These are free to distribute by the author.
1 question
Created Dec 26 '21 at 2:09
Persistent identifiers (PIDs) like DOI, ORCID or ROR aid in generating open metadata that are FAIR (findable, accessible, interoperable and reusable).
2 questions
Created Dec 9 '21 at 9:23