In April 2026, Nature reported that tens of thousands of 2025 publications may include invalid references generated by AI. arXiv will ban submitters for a year when a paper shows incontrovertible evidence of unchecked LLM output — including fabricated references.
The hard part is a gate that fits real writing workflows: local CLI, CI, structured reports, and repair.
citesure
citesure verifies bibliographies against Crossref, doi.org, arXiv, and PubMed, then optionally repairs BibTeX.
pip install git+https://github.com/SybilGambleyyu/citesure.git
citesure check refs.bib
citesure fix refs.bib -o refs.fixed.bib
Statuses: verified, metadata_mismatch, retracted, not_found, ambiguous.
Live demo: citesure.sybilgambleyyu.workers.dev
Full post (canonical): sybilgambleyyu.github.io/blog/posts/citesure.html
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