{"as_of":"2026-08-21T19:41:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:c4ad90feb0c3739806ebb9c3218769c6235abe310b2d87c459308671f1f73db8","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":"2026-08-21T06:32:19.484+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":"2026-08-16T04:25:34.809601Z","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":"2026-05-11T19:46:14.811873Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2105.14523","last_updated":"2021-05-30T12:49:17Z","snapshot_observed_at":"2026-08-18T20:56:09.651786Z","submitted_at":"2021-05-30T12:49:17Z","title":"The Merger Rate of Black Holes in a Primordial Black Hole Cluster","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2105.14523","snapshot_observed_at":"2026-08-16T04:25:34.809601Z","title":null,"venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2505.01495","last_updated":"2025-07-22T06:50:33Z","snapshot_observed_at":"2026-08-19T10:10:28.280676Z","submitted_at":"2025-05-02T18:00:00Z","title":"Evolution of a black hole cluster in full general relativity","version":2},"reference_index":69,"source":"pdf_text","source_observed_at":"2026-08-16T04:25:34.809601Z"},"links":{"cited_paper":"/paper/2105.14523","citing_paper":"/paper/2505.01495"},"observation_digest":"sha256:b3b3ec7594fe60c491fae48c120008bc915a2ed99728bac15ced05e478276594","observation_id":"e6ef4e05-08ed-4b15-80c2-87277828073a","resolution":{"observed_at":"2026-08-16T04:25:34.809601Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2105.14523","last_updated":"2021-05-30T12:49:17Z","snapshot_observed_at":"2026-08-18T20:56:09.651786Z","submitted_at":"2021-05-30T12:49:17Z","title":"The Merger Rate of Black Holes in a Primordial Black Hole Cluster","version":1},"cited_work":{"arxiv_id":"2105.14523","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"2105.14523","snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":null,"venue":null,"work_id":"8ba97201-2f22-4363-a67c-64c8c9d79f28","year":2021},"citing_paper":{"arxiv_id":"2604.22462","last_updated":"2026-04-24T11:29:09Z","snapshot_observed_at":"2026-08-10T21:23:44.507379Z","submitted_at":"2026-04-24T11:29:09Z","title":"Machine Learning for Multi-messenger Probes of New Physics and Cosmology: A Review and Perspective","version":1},"reference_index":179,"source":"pdf_text","source_observed_at":"2026-05-08T11:02:17.987425Z"},"links":{"cited_paper":"/paper/2105.14523","citing_paper":"/paper/2604.22462"},"observation_digest":"sha256:edd7f757d7325b2c6e0ef6fba5c576567d32a6f746dcc027e92e170c64c72a83","observation_id":"9338f660-79dd-4525-bc5c-5ab284bd86a1","resolution":{"observed_at":"2026-05-11T19:46:14.813878Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/2105.14523/citation-record","integrity":"/paper/2105.14523/integrity","json":"/paper/2105.14523/citation-record.json","paper":"/paper/2105.14523"},"outbound":[],"paper":{"arxiv_id":"2105.14523","last_updated":"2021-05-30T12:49:17Z","latest_version":1,"primary_category":"astro-ph.CO","snapshot_observed_at":"2026-08-18T20:56:09.651786Z","submitted_at":"2021-05-30T12:49:17Z","title":"The Merger Rate of Black Holes in a Primordial Black Hole Cluster"},"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":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"thesis":"As of 21 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:2105.14523."}