{"as_of":"2026-08-16T03:46:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:bb535c92821e90e58fd4dcd981f332b6108ac4c7234c8b4673b94d024939f3d5","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":2,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":2,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-15T06:32:42.880941+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":"2026-08-14T13:45:22.922265Z","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":"2026-05-11T16:16:06.374294Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2001.05175","last_updated":"2020-04-16T06:57:33Z","snapshot_observed_at":"2026-08-04T04:34:38.272158Z","submitted_at":"2020-01-15T08:26:06Z","title":"A revisit of rotating black hole shadow with astrometric observables","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2001.05175","snapshot_observed_at":"2026-08-14T13:45:22.922265Z","title":"Chang and Q.H","venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"1908.04527","last_updated":"2021-05-02T05:24:22Z","snapshot_observed_at":"2026-08-15T19:25:42.524946Z","submitted_at":"2019-08-13T07:52:37Z","title":"Effect of gravitational wave on shadow of a Schwarzschild black hole","version":7},"reference_index":74,"source":"pdf_text","source_observed_at":"2026-08-14T13:45:22.922265Z"},"links":{"cited_paper":"/paper/2001.05175","citing_paper":"/paper/1908.04527"},"observation_digest":"sha256:cbc9a32d2f48136d1cf54d262236d0c2f0df75a1fbf071a4a27e3295dd7439ff","observation_id":"984f8a6c-a979-4e87-a632-fc312d1caa72","resolution":{"observed_at":"2026-08-14T13:45:22.922265Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2001.05175","last_updated":"2020-04-16T06:57:33Z","snapshot_observed_at":"2026-08-04T04:34:38.272158Z","submitted_at":"2020-01-15T08:26:06Z","title":"A revisit of rotating black hole shadow with astrometric observables","version":2},"cited_work":{"arxiv_id":"2001.05175","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"2001.05175","snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":"Revisiting a rotating black hole shadow with astrometric observables","venue":null,"work_id":"a06b1451-1a93-42fd-a99f-1d83a1c28a76","year":2020},"citing_paper":{"arxiv_id":"2605.01426","last_updated":"2026-05-02T12:54:12Z","snapshot_observed_at":"2026-08-15T16:27:56.422106Z","submitted_at":"2026-05-02T12:54:12Z","title":"A note on methods for computing the critical curve of Kerr-like black holes","version":1},"reference_index":33,"source":"pdf_text","source_observed_at":"2026-05-09T18:26:51.561574Z"},"links":{"cited_paper":"/paper/2001.05175","citing_paper":"/paper/2605.01426"},"observation_digest":"sha256:75e5e264c907329b525873239e839328d68e07d225883c61e2a5b775762626c0","observation_id":"2854dea6-fb10-4c51-a84f-ee52448a3027","resolution":{"observed_at":"2026-05-11T16:16:06.388137Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-15T06:32:42.880941+00:00","source":"crossref"},{"observed_at":"2026-08-15T06:32:39.529945+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/2001.05175/citation-record","integrity":"/paper/2001.05175/integrity","json":"/paper/2001.05175/citation-record.json","paper":"/paper/2001.05175"},"outbound":[],"paper":{"arxiv_id":"2001.05175","last_updated":"2020-04-16T06:57:33Z","latest_version":2,"primary_category":"gr-qc","snapshot_observed_at":"2026-08-04T04:34:38.272158Z","submitted_at":"2020-01-15T08:26:06Z","title":"A revisit of rotating black hole shadow with astrometric observables"},"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":"2026-08-15T06:32:42.880941+00:00","source":"crossref"},{"observed_at":"2026-08-15T06:32:39.529945+00:00","source":"retraction_watch"}],"thesis":"As of 16 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:2001.05175."}