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A longer candidate (10.1016/j.aim.2010.07.005.url:https://www.sciencedirect.com/science/article/pii/S0001870810002586) was visible in the surrounding text but could not be confirmed against doi.org as printed.","detected_doi":"10.1016/j.aim.2010.07.005.url:https://www.sciencedirect.com/science/article/pii/S0001870810002586","detected_arxiv_id":null,"ref_index":17,"audited_at":"2026-07-09T13:23:23.475329Z"},{"detector":"doi_compliance","finding_type":"unresolvable_identifier","severity":"critical","verdict_class":"cross_source","note":"Identifier '10.1017/cbo9780511623646.url:https://doi.org/10.1017/cbo9780511623646' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.","detected_doi":"10.1017/cbo9780511623646.url:https://doi.org/10.1017/cbo9780511623646","detected_arxiv_id":null,"ref_index":18,"audited_at":"2026-07-09T13:23:23.475329Z"},{"detector":"doi_compliance","finding_type":"recoverable_identifier","severity":"advisory","verdict_class":"incontrovertible","note":"DOI in the printed bibliography is fragmented by whitespace or line breaks. 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A longer candidate (10.1016/j.aim.2015.07.030.url:https://doi.org/10.1016/j.aim.2015.07.030) was visible in the surrounding text but could not be confirmed against doi.org as printed.","detected_doi":"10.1016/j.aim.2015.07.030.url:https://doi.org/10.1016/j.aim.2015.07.030","detected_arxiv_id":null,"ref_index":31,"audited_at":"2026-07-09T13:23:23.475329Z"},{"detector":"doi_compliance","finding_type":"recoverable_identifier","severity":"advisory","verdict_class":"incontrovertible","note":"DOI in the printed bibliography is fragmented by whitespace or line breaks. 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The cited work could not be located through any authoritative source.","detected_doi":"10.1016/j.aim.2020.107039.url:https://doi.org/10.1016/j.aim.2020.107039","detected_arxiv_id":null,"ref_index":1,"audited_at":"2026-07-09T13:23:23.475329Z"}],"snapshot_sha256":"eabaee49873d3fff0b1fed457ec1efee4c8fb08adb146a03072e8eaed5fe4fe1"},"events":[{"event_id":9024,"event_type":"pith.integrity.v1","payload_sha256":"e170fff9504701f1c951d3f02f14e494080d386aa0d9294a932f59a590d6cdc4","signature_b64":"g54pH8Wx2M2bn5rBic1+oPpGvOLM44e0vwBrMLCMC3ZHRupNZeSTvNmoGTVlTqrsMT8pun9pAA2Pd2MF1QejCQ==","signing_key_id":"pith-v1-2026-05","created_at":"2026-07-09T13:27:46.481461+00:00","payload":{"note":"DOI in the printed bibliography is fragmented by whitespace or line breaks. A longer candidate (10.1016/j.aim.2015.07.030.url:https://doi.org/10.1016/j.aim.2015.07.030) was visible in the surrounding text but could not be confirmed against doi.org as printed.","snippet":"E. Tsukerman and L. 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The cited work could not be located through any authoritative source.","snippet":"R. Rado. “An inequality”. In:J. London Math. Soc.27 (1952), pp. 1–6.issn: 0024-6107,1469-7750. doi:10.1112/jlms/s1-27.1.1.url:https://doi.org/10.1112/jlms/s1-27.1.1","arxiv_id":"2606.28680","detector":"doi_compliance","evidence":{"doi":"10.1112/jlms/s1-27.1.1.url:https://doi.org/10.1112/jlms/s1-27.1.1","arxiv_id":null,"ref_index":23,"raw_excerpt":"R. Rado. “An inequality”. In:J. London Math. 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A longer candidate (10.1093/imrn/rnn153.url:https://doi.org/10.1093/imrn/rnn153) was visible in the surrounding text but could not be confirmed against doi.org as printed.","snippet":"A. Postnikov. “Permutohedra, associahedra, and beyond”. In:Int. Math. Res. Not. IMRN6 (2009), pp. 1026–1106.issn: 1073-7928,1687-0247.doi:10.1093/imrn/rnn153.url:https://doi.org/10. 1093/imrn/rnn153","arxiv_id":"2606.28680","detector":"doi_compliance","evidence":{"ref_index":22,"verdict_class":"incontrovertible","resolved_title":null,"printed_excerpt":"A. Postnikov. “Permutohedra, associahedra, and beyond”. In:Int. Math. Res. Not. 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The cited work could not be located through any authoritative source.","snippet":"J. E. Humphreys.Reflection groups and Coxeter groups. Vol. 29. Cambridge Studies in Advanced Mathematics. Cambridge University Press, Cambridge, 1990, pp. xii+204.isbn: 0-521-37510-X.doi: 10.1017/CBO9780511623646.url:https://doi.org/10.1017","arxiv_id":"2606.28680","detector":"doi_compliance","evidence":{"doi":"10.1017/cbo9780511623646.url:https://doi.org/10.1017/cbo9780511623646","arxiv_id":null,"ref_index":18,"raw_excerpt":"J. E. Humphreys.Reflection groups and Coxeter groups. Vol. 29. Cambridge Studies in Advanced Mathematics. 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