{"as_of":"2026-08-13T04:38:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:8a9e39278dda1977ffe3c1d54dfc02bfc3124301a6cf3dc8c13bca24bdf150a5","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":"2026-08-12T06:34:41.77262+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":"2026-08-12T10:13:51.940630Z","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":"2026-08-11T21:08:52.913566Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2107.05638","last_updated":"2021-07-12T18:00:01Z","snapshot_observed_at":"2026-07-06T11:28:24.094754Z","submitted_at":"2021-07-12T18:00:01Z","title":"Host galaxies of high-redshift quasars: supermassive black hole growth and feedback","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2107.05638","snapshot_observed_at":"2026-08-12T10:13:51.940630Z","title":"& Ferrara, A","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2411.19481","last_updated":"2024-11-29T05:38:33Z","snapshot_observed_at":"2026-08-13T04:08:14.344809Z","submitted_at":"2024-11-29T05:38:33Z","title":"Characterizing the Properties and Constitution of Compact Objects in Gravitational-Wave Binaries","version":1},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-08-12T10:13:51.940630Z"},"links":{"cited_paper":"/paper/2107.05638","citing_paper":"/paper/2411.19481"},"observation_digest":"sha256:a00d8164d679cab106eaf1a99f9a5654ce014b03a28423f5fe7b531fcb5e1f33","observation_id":"3f9af7ec-bf17-4280-96f3-da5b514af772","resolution":{"observed_at":"2026-08-12T10:13:51.940630Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2107.05638","last_updated":"2021-07-12T18:00:01Z","snapshot_observed_at":"2026-07-06T11:28:24.094754Z","submitted_at":"2021-07-12T18:00:01Z","title":"Host galaxies of high-redshift quasars: supermassive black hole growth and feedback","version":1},"cited_work":{"arxiv_id":"2107.05638","doi":null,"metadata_source":"pith","pith_arxiv_id":"2107.05638","snapshot_observed_at":"2026-08-11T21:08:52.913566Z","title":"Host galaxies of high-redshift quasars: supermassive black hole growth and feedback","venue":"astro-ph.GA","work_id":"93d9f1c2-c40f-4257-93d6-2a4e639c70a5","year":2021},"citing_paper":{"arxiv_id":"2412.04983","last_updated":"2024-12-06T12:07:44Z","snapshot_observed_at":"2026-08-12T17:02:47.872035Z","submitted_at":"2024-12-06T12:07:44Z","title":"Red, hot, and very metal poor: extreme properties of a massive accreting black hole in the first 500 Myr","version":1},"reference_index":178,"source":"pdf_text","source_observed_at":"2026-08-11T21:08:52.552527Z"},"links":{"cited_paper":"/paper/2107.05638","citing_paper":"/paper/2412.04983"},"observation_digest":"sha256:f357532aecc92d34ad46ec5a20dfed88ba663aedc8fdd5b4a021aaf828bfa935","observation_id":"2fccd943-7eeb-47d6-abdf-f226ff44a5a5","resolution":{"observed_at":"2026-08-11T21:08:52.918752Z","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"}}],"links":{"evidence":"/evidence","html":"/paper/2107.05638/citation-record","integrity":"/paper/2107.05638/integrity","json":"/paper/2107.05638/citation-record.json","paper":"/paper/2107.05638"},"outbound":[],"paper":{"arxiv_id":"2107.05638","last_updated":"2021-07-12T18:00:01Z","latest_version":1,"primary_category":"astro-ph.GA","snapshot_observed_at":"2026-07-06T11:28:24.094754Z","submitted_at":"2021-07-12T18:00:01Z","title":"Host galaxies of high-redshift quasars: supermassive black hole growth and feedback"},"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 13 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:2107.05638."}