{"as_of":"2026-08-23T08:11:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:e33dd0800ebaa37f7115c48999422c2a1190225db92031eed822cd860eff9b92","coverage":[{"denominator":0,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"state":"measured"},{"denominator":4,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":4,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-23T06:30:58.430688+00:00","state":"measured"},{"denominator":4,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":4,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-02T14:21:35.594696Z","state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"pith","source_observed_at":"2026-07-02T19:37:18.859161Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1811.09637","last_updated":"2019-02-19T14:42:16Z","snapshot_observed_at":"2026-08-14T17:54:33.930466Z","submitted_at":"2018-11-23T19:00:05Z","title":"$U(1)$ flavour symmetries as Peccei-Quinn symmetries","version":2},"cited_work":{"arxiv_id":"1811.09637","doi":null,"metadata_source":"pith","pith_arxiv_id":"1811.09637","snapshot_observed_at":"2026-07-02T19:37:18.859161Z","title":"Bj¨ orkeroth, L","venue":"hep-ph","work_id":"dfb4c5ae-0994-4015-8081-2808181718ae","year":2018},"citing_paper":{"arxiv_id":"2605.11630","last_updated":"2026-07-30T07:25:08Z","snapshot_observed_at":"2026-08-18T16:10:40.371705Z","submitted_at":"2026-05-12T06:55:48Z","title":"Long-lived sterile neutrinos from axionlike particles at the Super Tau-Charm Facility","version":1},"reference_index":74,"source":"pdf_text","source_observed_at":"2026-05-13T01:24:26.411574Z"},"links":{"cited_paper":"/paper/1811.09637","citing_paper":"/paper/2605.11630"},"observation_digest":"sha256:b208dcb695a19f8f067ad3658daef6f47a44ac56ff061f5cd41285651d8b994a","observation_id":"0d9c06ad-01d9-4c16-ba57-ed275949a8bb","resolution":{"observed_at":"2026-05-13T01:27:02.254740Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-23T06:30:58.430688+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-23T06:30:58.430688+00:00","source":"crossref"},{"observed_at":"2026-08-23T06:30:53.778098+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1811.09637","last_updated":"2019-02-19T14:42:16Z","snapshot_observed_at":"2026-08-14T17:54:33.930466Z","submitted_at":"2018-11-23T19:00:05Z","title":"$U(1)$ flavour symmetries as Peccei-Quinn symmetries","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1811.09637","snapshot_observed_at":"2026-08-02T14:21:35.594696Z","title":"Bj¨ orkeroth, L","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"2605.11630","last_updated":"2026-07-30T07:25:08Z","snapshot_observed_at":"2026-08-18T16:10:40.371705Z","submitted_at":"2026-05-12T06:55:48Z","title":"Long-lived sterile neutrinos from axionlike particles at the Super Tau-Charm Facility","version":2},"reference_index":74,"source":"pdf_text","source_observed_at":"2026-08-02T14:21:35.594696Z"},"links":{"cited_paper":"/paper/1811.09637","citing_paper":"/paper/2605.11630"},"observation_digest":"sha256:b5cc200033ccc2c09b9f947984469208683af191219a0d53037b4c530a92f3d3","observation_id":"fbd2a0a3-c87e-4bf4-8baa-55551f30082c","resolution":{"observed_at":"2026-08-02T14:21:35.594696Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1811.09637","last_updated":"2019-02-19T14:42:16Z","snapshot_observed_at":"2026-08-14T17:54:33.930466Z","submitted_at":"2018-11-23T19:00:05Z","title":"$U(1)$ flavour symmetries as Peccei-Quinn symmetries","version":2},"cited_work":{"arxiv_id":"1811.09637","doi":null,"metadata_source":"pith","pith_arxiv_id":"1811.09637","snapshot_observed_at":"2026-07-02T19:37:18.859161Z","title":"Bj¨ orkeroth, L","venue":"hep-ph","work_id":"dfb4c5ae-0994-4015-8081-2808181718ae","year":2018},"citing_paper":{"arxiv_id":"2606.07749","last_updated":"2026-06-05T18:00:38Z","snapshot_observed_at":"2026-07-06T23:47:19.773490Z","submitted_at":"2026-06-05T18:00:38Z","title":"Flavor phenomenology of light dark particles","version":1},"reference_index":88,"source":"pdf_text","source_observed_at":"2026-06-27T21:28:02.219269Z"},"links":{"cited_paper":"/paper/1811.09637","citing_paper":"/paper/2606.07749"},"observation_digest":"sha256:2ac0c874c1fc40fe2fb438174124314810ce0f1465cef27691ab747bbc18697c","observation_id":"45c2b212-8a24-49ed-8691-69ac401351ff","resolution":{"observed_at":"2026-07-02T19:37:18.861112Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-23T06:30:58.430688+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-23T06:30:58.430688+00:00","source":"crossref"},{"observed_at":"2026-08-23T06:30:53.778098+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1811.09637","last_updated":"2019-02-19T14:42:16Z","snapshot_observed_at":"2026-08-14T17:54:33.930466Z","submitted_at":"2018-11-23T19:00:05Z","title":"$U(1)$ flavour symmetries as Peccei-Quinn symmetries","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1811.09637","snapshot_observed_at":"2026-08-02T02:01:55.629719Z","title":"Bj ¨orkeroth, L","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"2607.14492","last_updated":"2026-07-16T02:15:16Z","snapshot_observed_at":"2026-08-09T02:36:53.697757Z","submitted_at":"2026-07-16T02:15:16Z","title":"Searching for long-lived ALPs with a laser-assisted optical dump","version":1},"reference_index":80,"source":"pdf_text","source_observed_at":"2026-08-02T02:01:55.629719Z"},"links":{"cited_paper":"/paper/1811.09637","citing_paper":"/paper/2607.14492"},"observation_digest":"sha256:29139ede7451dd942559963d5f0c464238276e9ab53422fc50a2c2813f24e6db","observation_id":"7ad5d483-98df-4973-9916-80f5b0e01f65","resolution":{"observed_at":"2026-08-02T02:01:55.629719Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"links":{"evidence":"/evidence","html":"/paper/1811.09637/citation-record","integrity":"/paper/1811.09637/integrity","json":"/paper/1811.09637/citation-record.json","paper":"/paper/1811.09637"},"outbound":[],"paper":{"arxiv_id":"1811.09637","last_updated":"2019-02-19T14:42:16Z","latest_version":2,"primary_category":"hep-ph","snapshot_observed_at":"2026-08-14T17:54:33.930466Z","submitted_at":"2018-11-23T19:00:05Z","title":"$U(1)$ flavour symmetries as Peccei-Quinn symmetries"},"reference_resolution":{"displayed":0,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":0,"verified_exact":0,"verified_fuzzy":0},"total_outbound_references":0},"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":"2026-08-23T06:30:58.430688+00:00","source":"crossref"},{"observed_at":"2026-08-23T06:30:53.778098+00:00","source":"retraction_watch"}],"thesis":"As of 23 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 4 inbound Pith citation observations for arXiv:1811.09637."}