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- Multiple authors do submit the same paper but typically it is a mistake. arXiv does have a fuzzy title-match in place to help avoid duplicates.
- Supplying submission data at the institutional or author level is problematic due to lack of affiliation information and author authority control issues. ORCID ID matches will be included in the future and are expected to help
- If a 'problem' paper is submitted, accepted, and then deemed unacceptable, it is administratively withdrawn from arXiv. An author withdrawal can be done in such a way that historical versions (which are retained) do not show in the default user view, and a comment about the withdrawal shown instead.
- Can arXiv consider off-the-shelf products or open source for moderation, submission and plagiarism checks? arXiv's IT infrastructure is heavily driven around the use of TeX. TeX is the dominant way to typeset math formulas and it is the way that researchers still work. Any tools would have to be able to process TeX effectively.
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