They already had a basic form of this for a while [1] > arXiv requires that users be endorsed before submitting their first paper to arXiv or a new category.

They already had a basic form of this for a while [1] > arXiv requires that users be endorsed before submitting their first paper to arXiv or a new category. [1] https://info.arxiv.org/help/endorsement.html https://info.arxiv.org/help/endorsement.html