{"as_of":"2026-08-12T13:02:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:b7d8310a90cb61c79bb98539b77d611464e32e392eb66785f410dde841a090c8","coverage":[{"denominator":13,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":13,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-10T13:27:02.895106Z","state":"measured"},{"denominator":15,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":15,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-12T06:34:41.77262+00:00","state":"measured"},{"denominator":2,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":2,"source":"paper_references, paper_reference_links","source_observed_at":"2026-07-14T13:00:43.508451Z","state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"arxiv_reference","source_observed_at":"2026-05-10T22:10:47.653448Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"cited_work":{"arxiv_id":"2501.16427","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"2501.16427","snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":"Strumia,‘Solving the strong CP problem’ [arXiv:2501.16427]","venue":null,"work_id":"049db26e-87a4-4dc9-bd95-72e89da1414b","year":null},"citing_paper":{"arxiv_id":"2604.05548","last_updated":"2026-08-08T13:44:59Z","snapshot_observed_at":"2026-08-12T12:18:50.505655Z","submitted_at":"2026-04-07T07:48:55Z","title":"Cosmological collider signals of modular spontaneous CP breaking","version":1},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-05-10T20:12:58.808023Z"},"links":{"cited_paper":"/paper/2501.16427","citing_paper":"/paper/2604.05548"},"observation_digest":"sha256:a4d9a4a9187967fca09c09a2582b2a9466a0a4592f6076046883989942831554","observation_id":"c2972aed-6b59-4964-86c1-5ebc7ed527a1","resolution":{"observed_at":"2026-05-10T22:10:47.656156Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-12T06:34:41.77262+00:00","source":"crossref"},{"observed_at":"2026-08-12T06:34:36.333875+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2501.16427","snapshot_observed_at":"2026-07-14T13:00:43.508451Z","title":"Strumia, arXiv (2025), arXiv:2501.16427 [hep-ph]","venue":null,"work_id":null,"year":2025},"citing_paper":{"arxiv_id":"2607.10272","last_updated":"2026-07-11T12:05:21Z","snapshot_observed_at":"2026-08-12T05:24:44.944602Z","submitted_at":"2026-07-11T12:05:21Z","title":"On the Origins of the Strong CP Problem","version":1},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-07-14T13:00:43.508451Z"},"links":{"cited_paper":"/paper/2501.16427","citing_paper":"/paper/2607.10272"},"observation_digest":"sha256:2720e42bef7c1d2406bacaa2e01e91127fab91dec7ce4f6dc18127dd046e8564","observation_id":"033c8ed9-550c-47ce-a3a1-abaae1782921","resolution":{"observed_at":"2026-07-14T13:00:43.508451Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"links":{"evidence":"/evidence","html":"/paper/2501.16427/citation-record","integrity":"/paper/2501.16427/integrity","json":"/paper/2501.16427/citation-record.json","paper":"/paper/2501.16427"},"outbound":[{"citation":{"cited_paper":{"arxiv_id":"2001.11966","last_updated":"2020-01-31T17:31:29Z","snapshot_observed_at":"2026-08-07T00:24:32.922850Z","submitted_at":"2020-01-31T17:31:29Z","title":"Measurement of the permanent electric dipole moment of the neutron","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2001.11966","snapshot_observed_at":"2026-08-10T13:27:02.810644Z","title":"Abel et al.,‘Measurement of the Permanent Electric Dipole Moment of the Neutron’, Phys.Rev.Lett","venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.810644Z"},"links":{"cited_paper":"/paper/2001.11966","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:784b6b45643b5c7b7d962b3179461d429ba7d955878afe42412f1740f9880be4","observation_id":"bd056f46-0cf6-4940-8bb8-b8ccadd0fe43","resolution":{"observed_at":"2026-08-10T13:27:02.810644Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2406.01705","last_updated":"2025-12-03T08:11:10Z","snapshot_observed_at":"2026-08-06T19:42:34.309381Z","submitted_at":"2024-06-03T18:03:11Z","title":"Dark Matter","version":3},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2406.01705","snapshot_observed_at":"2026-08-10T13:27:02.818105Z","title":"Cirelli, A","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.818105Z"},"links":{"cited_paper":"/paper/2406.01705","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:ee5277924c885cc0c41f90555f91bb829521a2062937cf0482d3d78db975cb0c","observation_id":"81563fec-f810-4d19-9f60-437067ed4714","resolution":{"observed_at":"2026-08-10T13:27:02.818105Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2003.01100","last_updated":"2022-06-07T13:23:26Z","snapshot_observed_at":"2026-07-06T09:01:38.630614Z","submitted_at":"2020-03-02T18:51:00Z","title":"The landscape of QCD axion models","version":4},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2003.01100","snapshot_observed_at":"2026-08-10T13:27:02.823457Z","title":null,"venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.823457Z"},"links":{"cited_paper":"/paper/2003.01100","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:19e7190b48cfd197c9ab9b73b3c5062499b3210223d83711346dd0ea276210ec","observation_id":"35e21014-1061-479f-b0f7-62b0fe4f45dc","resolution":{"observed_at":"2026-08-10T13:27:02.823457Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"hep-ph/9511391","last_updated":"1996-04-26T22:26:51Z","snapshot_observed_at":"2026-07-07T04:21:24.238504Z","submitted_at":"1995-11-22T17:42:20Z","title":"Simple supersymmetric solution to the strong CP problem","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"hep-ph/9511391","snapshot_observed_at":"2026-08-10T13:27:02.830197Z","title":"41 (1978) 278","venue":null,"work_id":null,"year":1978},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.830197Z"},"links":{"cited_paper":"/paper/hep-ph/9511391","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:23cda7be7edd9d5a0cecc151e8104038462343e5359ec845524b7a6ae1dc710f","observation_id":"671c81f9-c39d-4cb5-b526-3b1dd1b3a2b7","resolution":{"observed_at":"2026-08-10T13:27:02.830197Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T13:27:03.166559Z","title":"Bento, G.C","venue":null,"work_id":"58db90ae-3979-42eb-ad52-8708fbb3cfb2","year":1991},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.841125Z"},"links":{"citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:0ba7e5ffbc8a81b83a34359082261df4db325a58bf3efe941dc5dfd74d9beb10","observation_id":"8d9cbe61-f21d-4f89-a533-062de53f9f06","resolution":{"observed_at":"2026-08-10T13:27:03.175702Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-12T06:34:41.77262+00:00","source":"crossref"},{"observed_at":"2026-08-12T06:34:36.333875+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2305.08908","last_updated":"2023-06-17T10:05:25Z","snapshot_observed_at":"2026-07-31T09:30:07.528905Z","submitted_at":"2023-05-15T18:00:02Z","title":"Modular invariance and the QCD angle","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2305.08908","snapshot_observed_at":"2026-08-10T13:27:02.847158Z","title":null,"venue":null,"work_id":null,"year":2023},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.847158Z"},"links":{"cited_paper":"/paper/2305.08908","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:93c10a4d4b3b7b5466543aee279fbb5aa7d33896e07b2983f9170b3c892406fb","observation_id":"db92a575-5c52-4aad-99f8-f4d0ac370f15","resolution":{"observed_at":"2026-08-10T13:27:02.847158Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2406.01689","last_updated":"2024-08-15T04:13:57Z","snapshot_observed_at":"2026-07-06T18:24:43.282366Z","submitted_at":"2024-06-03T18:00:02Z","title":"Solving the strong CP problem without axions","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2406.01689","snapshot_observed_at":"2026-08-10T13:27:02.855146Z","title":"Feruglio, M","venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.855146Z"},"links":{"cited_paper":"/paper/2406.01689","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:1fed22f7693bc3d5c6e5010f4c610e0bda04cb7bfba9866234a89b5cdb9402e9","observation_id":"839cfb81-8e57-4e84-9063-c8485cd8cd31","resolution":{"observed_at":"2026-08-10T13:27:02.855146Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"hep-ph/9612396","last_updated":"1996-12-18T15:54:43Z","snapshot_observed_at":"2026-07-07T04:24:39.097381Z","submitted_at":"1996-12-18T15:54:43Z","title":"Supersymmetric Solutions to the Strong CP Problem","version":1},"cited_work":{"arxiv_id":"hep-ph/9612396","doi":null,"metadata_source":"pith","pith_arxiv_id":"hep-ph/9612396","snapshot_observed_at":"2026-08-10T13:27:03.031513Z","title":"Supersymmetric Solutions to the Strong CP Problem","venue":"hep-ph","work_id":"bcce2071-0aa8-4e2d-bd08-d7b84adcbed2","year":1996},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.862734Z"},"links":{"cited_paper":"/paper/hep-ph/9612396","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:8fd9d89f6ebae1cf177df3fd45a74f2011f459bf4ad6357cf4b9d13d0d97036d","observation_id":"b633781c-30fd-4406-bb42-1d0048d73b1c","resolution":{"observed_at":"2026-08-10T13:27:03.039591Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-12T06:34:41.77262+00:00","source":"crossref"},{"observed_at":"2026-08-12T06:34:36.333875+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1307.0710","last_updated":"2013-11-26T14:20:29Z","snapshot_observed_at":"2026-08-05T21:09:55.760016Z","submitted_at":"2013-07-02T14:09:34Z","title":"Solving the Strong CP Problem with Discrete Symmetries and the Right Unitarity Triangle","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1307.0710","snapshot_observed_at":"2026-08-10T13:27:02.868696Z","title":"Antusch, M","venue":null,"work_id":null,"year":2013},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.868696Z"},"links":{"cited_paper":"/paper/1307.0710","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:eed73a7cc242fd584cd6768f9946f1e6d68dd49d2b0b65aab5e1f146349cd5cc","observation_id":"29a60440-2f8c-45ef-8e90-2c7badf58148","resolution":{"observed_at":"2026-08-10T13:27:02.868696Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2404.08032","last_updated":"2024-10-24T10:01:43Z","snapshot_observed_at":"2026-08-08T04:10:40.463931Z","submitted_at":"2024-04-11T18:00:00Z","title":"Finite modular symmetries and the strong CP problem","version":3},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2404.08032","snapshot_observed_at":"2026-08-10T13:27:02.874327Z","title":"Penedo, S.T","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.874327Z"},"links":{"cited_paper":"/paper/2404.08032","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:3af9312282e5df8a2fe5b58b718f40de8f674122f9f3ed523a2b068486d0c4be","observation_id":"993b32c4-dd5c-41fd-bfc8-df79f081d611","resolution":{"observed_at":"2026-08-10T13:27:02.874327Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"hep-ph/0201251","last_updated":"2002-01-27T20:28:58Z","snapshot_observed_at":"2026-07-07T03:55:03.283575Z","submitted_at":"2002-01-27T20:28:58Z","title":"Strong-weak CP hierarchy from non-renormalization theorems","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"hep-ph/0201251","snapshot_observed_at":"2026-08-10T13:27:02.880247Z","title":"Hiller, M","venue":null,"work_id":null,"year":2002},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.880247Z"},"links":{"cited_paper":"/paper/hep-ph/0201251","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:604d562835545afc2124a001a64c7895ed21a40a39e1580fca2c9d0f2899e84a","observation_id":"54409ad2-ed1a-40ed-8a3e-36f3b903ec0f","resolution":{"observed_at":"2026-08-10T13:27:02.880247Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1706.08749","last_updated":"2017-09-29T15:31:15Z","snapshot_observed_at":"2026-07-06T05:48:37.111698Z","submitted_at":"2017-06-27T09:26:24Z","title":"Are neutrino masses modular forms?","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1706.08749","snapshot_observed_at":"2026-08-10T13:27:02.886502Z","title":"Feruglio,‘Are neutrino masses modular forms?’[arXiv:1706.08749]","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.886502Z"},"links":{"cited_paper":"/paper/1706.08749","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:2f423a71b0dd4a9c45939c3192b30baa08cf37fcd420d2eb785040eb45f94deb","observation_id":"222b3e4b-3e2d-471a-88fe-db6beb196951","resolution":{"observed_at":"2026-08-10T13:27:02.886502Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2411.08101","last_updated":"2025-03-04T14:41:05Z","snapshot_observed_at":"2026-08-10T05:22:26.291861Z","submitted_at":"2024-11-12T19:00:01Z","title":"CPon Dark Matter","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2411.08101","snapshot_observed_at":"2026-08-10T13:27:02.895106Z","title":"Feruglio, R","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem","version":1},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-10T13:27:02.895106Z"},"links":{"cited_paper":"/paper/2411.08101","citing_paper":"/paper/2501.16427"},"observation_digest":"sha256:d6adcc80b97917a3f149bbb04a343e6112f9bbee5267b7ddcf78b7fed834d591","observation_id":"4c37c6ea-36f2-4c4c-bbf8-0aa456bbffc0","resolution":{"observed_at":"2026-08-10T13:27:02.895106Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"paper":{"arxiv_id":"2501.16427","last_updated":"2025-01-27T19:00:02Z","latest_version":1,"primary_category":"hep-ph","snapshot_observed_at":"2026-08-10T14:00:24.076569Z","submitted_at":"2025-01-27T19:00:02Z","title":"Solving the strong CP problem"},"reference_resolution":{"displayed":13,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":11,"verified_exact":1,"verified_fuzzy":1},"total_outbound_references":13},"refusal":"A citation records a reference. It does not transfer a finding from one paper to another.","schema":"pith.paper-citation-record.v1","standing_sources":[{"observed_at":"2026-08-12T06:34:41.77262+00:00","source":"crossref"},{"observed_at":"2026-08-12T06:34:36.333875+00:00","source":"retraction_watch"}],"thesis":"As of 12 August 2026, this Paper Citation Record lists 13 of 13 outbound references and 2 inbound Pith citation observations for arXiv:2501.16427."}