Broken Identifier

arXiv:2604.21820 · detector doi_compliance · incontrovertible · 2026-05-20 00:37:42.352437+00:00

critical doi_compliance broken_identifier

DOI '10.1142/7623' as printed in the bibliography is syntactically invalid and cannot resolve.

Paper page Integrity report arXiv Try DOI

Evidence text

N. N. Bogolubov and N. N. Bogolubov Jr, Introduction to Quantum Statistical Mechan- ics, 2nd ed. (WORLD SCIENTIFIC, 2009) https://www.worldscientific.com/doi/pdf/10.1142/7623

Evidence payload

{
  "doi_as_printed": "10.1142/7623",
  "raw_excerpt": "N. N. Bogolubov and N. N. Bogolubov Jr, Introduction to Quantum Statistical Mechan- ics, 2nd ed. (WORLD SCIENTIFIC, 2009) https://www.worldscientific.com/doi/pdf/10.1142/7623",
  "ref_index": 61,
  "verdict_class": "incontrovertible"
}