{"as_of":"2026-08-10T06:40:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:b63115ee94031e359e314a4315a43cc01220c4e43c304f077bb6c020dde0cd7f","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":1,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":1,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-10T06:31:04.303077+00:00","state":"measured"},{"denominator":1,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":1,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-08T23:48:55.344670Z","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":"2026-08-08T23:48:56.449715Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1909.01131","last_updated":"2020-05-29T09:48:35Z","snapshot_observed_at":"2026-08-06T15:02:55.685741Z","submitted_at":"2019-09-03T12:57:40Z","title":"QCD at finite isospin density: chiral perturbation theory confronts lattice data","version":2},"cited_work":{"arxiv_id":"1909.01131","doi":null,"metadata_source":"pith","pith_arxiv_id":"1909.01131","snapshot_observed_at":"2026-08-08T23:48:56.449715Z","title":"QCD at finite isospin density: chiral perturbation theory confronts lattice data","venue":"hep-ph","work_id":"8d947ef9-b2f1-4b57-b4a6-a42d11739600","year":2019},"citing_paper":{"arxiv_id":"2502.04060","last_updated":"2025-02-24T14:15:45Z","snapshot_observed_at":"2026-08-09T22:54:41.786401Z","submitted_at":"2025-02-06T13:18:29Z","title":"New axion contribution to the two-photon decays of neutral pions","version":2},"reference_index":41,"source":"pdf_text","source_observed_at":"2026-08-08T23:48:55.344670Z"},"links":{"cited_paper":"/paper/1909.01131","citing_paper":"/paper/2502.04060"},"observation_digest":"sha256:8dab5e5374eb0f65c66002437b61679ed61d418d39c42e77415ff3ab4198faa3","observation_id":"09df6295-9e30-45cd-9e72-21b7cd38ec4d","resolution":{"observed_at":"2026-08-08T23:48:56.454717Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-10T06:31:04.303077+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-10T06:31:04.303077+00:00","source":"crossref"},{"observed_at":"2026-08-10T06:30:57.382061+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/1909.01131/citation-record","integrity":"/paper/1909.01131/integrity","json":"/paper/1909.01131/citation-record.json","paper":"/paper/1909.01131"},"outbound":[],"paper":{"arxiv_id":"1909.01131","last_updated":"2020-05-29T09:48:35Z","latest_version":2,"primary_category":"hep-ph","snapshot_observed_at":"2026-08-06T15:02:55.685741Z","submitted_at":"2019-09-03T12:57:40Z","title":"QCD at finite isospin density: chiral perturbation theory confronts lattice data"},"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":"2026-08-10T06:31:04.303077+00:00","source":"crossref"},{"observed_at":"2026-08-10T06:30:57.382061+00:00","source":"retraction_watch"}],"thesis":"As of 10 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 1 inbound Pith citation observation for arXiv:1909.01131."}