{"as_of":"2026-08-12T19:10:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:8e2c741b3b4522276b47e10a3a42c5e8385506551cb767103954d67d1b924aa3","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":3,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":3,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-12T06:34:41.77262+00:00","state":"measured"},{"denominator":3,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":3,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-12T06:04:47.309293Z","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":"2026-05-18T15:43:55.256623Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1910.08481","last_updated":"2020-10-15T09:03:52Z","snapshot_observed_at":"2026-07-06T08:30:35.722297Z","submitted_at":"2019-10-18T15:53:57Z","title":"A model problem for quasinormal ringdown on asymptotically flat or extremal black holes","version":2},"cited_work":{"arxiv_id":"1910.08481","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"1910.08481","snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":"arXiv:1910.08481 (2019)","venue":null,"work_id":"e842bc2a-0e06-4570-bca3-a154db21dbb2","year":1910},"citing_paper":{"arxiv_id":"2004.06434","last_updated":"2021-09-14T16:37:22Z","snapshot_observed_at":"2026-08-08T23:42:37.543060Z","submitted_at":"2020-04-14T11:48:35Z","title":"Pseudospectrum and black hole quasi-normal mode (in)stability","version":4},"reference_index":89,"source":"pdf_text","source_observed_at":"2026-05-18T15:43:54.726108Z"},"links":{"cited_paper":"/paper/1910.08481","citing_paper":"/paper/2004.06434"},"observation_digest":"sha256:3d3dab6964f26f191f31f41c8e655ecc3a2653e99f38bad8cc427381ba699304","observation_id":"c4991eef-3e32-4927-8037-c5ac2aa8ab92","resolution":{"observed_at":"2026-05-18T15:43:55.259795Z","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":"1910.08481","last_updated":"2020-10-15T09:03:52Z","snapshot_observed_at":"2026-07-06T08:30:35.722297Z","submitted_at":"2019-10-18T15:53:57Z","title":"A model problem for quasinormal ringdown on asymptotically flat or extremal black holes","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1910.08481","snapshot_observed_at":"2026-08-12T06:04:47.309293Z","title":null,"venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"2411.19740","last_updated":"2025-02-05T10:41:29Z","snapshot_observed_at":"2026-08-12T08:31:36.364870Z","submitted_at":"2024-11-29T14:39:33Z","title":"The Confluent Heun functions in Black Hole Perturbation Theory: a spacetime interpretation","version":3},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-12T06:04:47.309293Z"},"links":{"cited_paper":"/paper/1910.08481","citing_paper":"/paper/2411.19740"},"observation_digest":"sha256:d3bf54686a88f220cf6344317fab0fab092ca62987755fbf54c1c5c6c509f0ce","observation_id":"bb639cb1-92a5-4956-9cdc-1707e3b12cde","resolution":{"observed_at":"2026-08-12T06:04:47.309293Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1910.08481","last_updated":"2020-10-15T09:03:52Z","snapshot_observed_at":"2026-07-06T08:30:35.722297Z","submitted_at":"2019-10-18T15:53:57Z","title":"A model problem for quasinormal ringdown on asymptotically flat or extremal black holes","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1910.08481","snapshot_observed_at":"2026-08-11T23:12:48.383118Z","title":null,"venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"2412.02793","last_updated":"2025-06-08T14:48:50Z","snapshot_observed_at":"2026-08-11T23:03:56.229539Z","submitted_at":"2024-12-03T19:43:58Z","title":"Quasi-normal mode expansions of black hole perturbations: a hyperboloidal Keldysh's approach","version":2},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-08-11T23:12:48.383118Z"},"links":{"cited_paper":"/paper/1910.08481","citing_paper":"/paper/2412.02793"},"observation_digest":"sha256:beb40db1dd4527cb5c690f32a85fb38d33b3daf14e7e03bbd4b7bf32865c7e81","observation_id":"8e65f6e7-d1c1-4d4d-bb14-ba4a22bbbe8b","resolution":{"observed_at":"2026-08-11T23:12:48.383118Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"links":{"evidence":"/evidence","html":"/paper/1910.08481/citation-record","integrity":"/paper/1910.08481/integrity","json":"/paper/1910.08481/citation-record.json","paper":"/paper/1910.08481"},"outbound":[],"paper":{"arxiv_id":"1910.08481","last_updated":"2020-10-15T09:03:52Z","latest_version":2,"primary_category":"math.AP","snapshot_observed_at":"2026-07-06T08:30:35.722297Z","submitted_at":"2019-10-18T15:53:57Z","title":"A model problem for quasinormal ringdown on asymptotically flat or extremal black holes"},"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":"2026-08-12T06:34:41.77262+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 0 of 0 outbound references and 3 inbound Pith citation observations for arXiv:1910.08481."}