{"as_of":"2026-08-18T13:14:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:9fe7b592d5cef2b51c55f42fc1e071e082f896bc0312eed97a97cd2d6f8e4243","coverage":[{"denominator":287,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":100,"source":"paper_references, paper_reference_links","source_observed_at":"2026-07-31T05:23:38.154426Z","state":"measured"},{"denominator":100,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":100,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-18T06:34:40.430872+00:00","state":"measured"},{"denominator":0,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"cited_works","source_observed_at":null,"state":"measured"}],"external_citation_measurements":[],"inbound":[],"links":{"evidence":"/evidence","html":"/paper/2607.28501/citation-record","integrity":"/paper/2607.28501/integrity","json":"/paper/2607.28501/citation-record.json","paper":"/paper/2607.28501"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.621355Z","title":"A&A , author =","venue":null,"work_id":null,"year":2010},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":1,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.621355Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:a73dfa2a2747cacfffc574ed327eb3aca27eb1c8dcfca6c7dd1fc80a418bcf13","observation_id":"8d93b3f9-524e-4442-82b6-2b9399dc2bb0","resolution":{"observed_at":"2026-07-31T05:23:36.621355Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1005.3365","last_updated":"2010-05-19T06:28:48Z","snapshot_observed_at":"2026-08-15T05:18:43.785770Z","submitted_at":"2010-05-19T06:28:48Z","title":"\"Comets\" orbiting a black hole","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1005.3365","snapshot_observed_at":"2026-07-31T05:23:36.633581Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":2,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.633581Z"},"links":{"cited_paper":"/paper/1005.3365","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:3e8927a828a43820775ce40e77fed3715ba7669e6f474bda16ff1be06b8acd50","observation_id":"b25148a9-2388-4a7e-b4a0-40ae664b91a1","resolution":{"observed_at":"2026-07-31T05:23:36.633581Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.641593Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2004},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":3,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.641593Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:48d5ab01894b3ad47015ade0b3b1a66b16dc2d55ab95dbe24099557b52c5b37d","observation_id":"01c95940-01c1-47eb-a7f5-d5711b16ada0","resolution":{"observed_at":"2026-07-31T05:23:36.641593Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0407291","last_updated":"2004-08-11T17:49:34Z","snapshot_observed_at":"2026-07-07T00:43:38.895035Z","submitted_at":"2004-07-14T16:59:58Z","title":"An Unveiling Event in the Type 2 AGN NGC4388: A Challenge for a Parsec Scale Absorber","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/0407291","snapshot_observed_at":"2026-07-31T05:23:36.654022Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":4,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.654022Z"},"links":{"cited_paper":"/paper/astro-ph/0407291","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:10cc964d1f53adfe0d06ade50b9db9abf1b0f4e083dc71d9a3a421978cde67df","observation_id":"2134602d-439c-475e-9063-93d5c3b211e4","resolution":{"observed_at":"2026-07-31T05:23:36.654022Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.684442Z","title":", keywords =","venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":5,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.684442Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:e1d92660a9e11e01d383128c51f98a79e5937c866a91c1de5af06f7b521b9ad2","observation_id":"122f9b6d-4d6d-473c-b239-bdd08cef344b","resolution":{"observed_at":"2026-07-31T05:23:36.684442Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.699737Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":6,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.699737Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:3a6cd545f211be3b4bae7f094984b1238e68c3fb4701e822d7fa7b1b4953c8af","observation_id":"68349a18-4622-4848-b685-03169482e093","resolution":{"observed_at":"2026-07-31T05:23:36.699737Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2005.06079","last_updated":"2020-05-12T22:39:01Z","snapshot_observed_at":"2026-08-13T16:11:27.917463Z","submitted_at":"2020-05-12T22:39:01Z","title":"The variable and non-variable X-ray absorbers in Compton-thin type-II Active Galactic Nuclei","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2005.06079","snapshot_observed_at":"2026-07-31T05:23:36.713967Z","title":", keywords =","venue":null,"work_id":null,"year":2005},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":7,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.713967Z"},"links":{"cited_paper":"/paper/2005.06079","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:575680c44fe543576df773cf119dd734d81bfa3acf72823ac02618d0ad57238a","observation_id":"3f93e2dc-9f5d-474b-bb08-c90cf1a4dbaf","resolution":{"observed_at":"2026-07-31T05:23:36.713967Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.730760Z","title":"Monthly Notices of the Royal Astronomical Society , author =","venue":null,"work_id":null,"year":2014},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":8,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.730760Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:87bf0f4bcd9da5e44703f4df06b7c90cfea866dcf2b9c1fd3899a74a688c7f81","observation_id":"f5a11632-4f85-40c7-b9d0-685ada96f7d6","resolution":{"observed_at":"2026-07-31T05:23:36.730760Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1402.2779","last_updated":"2014-02-20T15:13:12Z","snapshot_observed_at":"2026-08-14T23:44:57.686551Z","submitted_at":"2014-02-12T10:40:25Z","title":"First X-ray-Based Statistical Tests for Clumpy-Torus Models: Eclipse Events from 230 Years of Monitoring of Seyfert AGN","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1402.2779","snapshot_observed_at":"2026-07-31T05:23:36.748443Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":9,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.748443Z"},"links":{"cited_paper":"/paper/1402.2779","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:aaf99b2acf8598b583362e14184ae446f23e6c10895092f0cbd1e9003c22949d","observation_id":"99c53576-7493-43cb-b02f-9736ef41fdc4","resolution":{"observed_at":"2026-07-31T05:23:36.748443Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2105.05840","last_updated":"2021-05-12T17:53:50Z","snapshot_observed_at":"2026-08-16T18:25:10.733126Z","submitted_at":"2021-05-12T17:53:50Z","title":"AGN STORM 2: I. First results: A Change in the Weather of Mrk 817","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2105.05840","snapshot_observed_at":"2026-07-31T05:23:36.765854Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":10,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.765854Z"},"links":{"cited_paper":"/paper/2105.05840","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:fced0c3a7dfb688a61cc12917a9dccd7f64f949e0f0661cbec9fb9d1f41529e2","observation_id":"e9e1c5a5-8909-4f4c-86b1-ad210fc03d40","resolution":{"observed_at":"2026-07-31T05:23:36.765854Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1406.5007","last_updated":"2014-06-19T11:03:08Z","snapshot_observed_at":"2026-08-15T02:27:04.442424Z","submitted_at":"2014-06-19T11:03:08Z","title":"A fast and long-lived outflow from the supermassive black hole in NGC 5548","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1406.5007","snapshot_observed_at":"2026-07-31T05:23:36.777790Z","title":"Science , keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":11,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.777790Z"},"links":{"cited_paper":"/paper/1406.5007","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:36b632b7e2727b97d5d13669843df881c25812e5b6ded48dcdf096bfb2427693","observation_id":"ca5fe591-3367-4328-8599-75bfb4cffefa","resolution":{"observed_at":"2026-07-31T05:23:36.777790Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.787405Z","title":"Astronomy & Astrophysics , volume=","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":12,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.787405Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:f31005ef48663760410c097aba330823975cc36c327950f1371e2d136d30318b","observation_id":"27ed37e2-566d-44a5-a710-4a98feddcb33","resolution":{"observed_at":"2026-07-31T05:23:36.787405Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1086/313057","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"The Astrophysical Journal Supplement Series","work_id":"89b048d7-f413-4a8b-b6bb-6a5f2d9c6521","year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":13,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.795380Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:41f96534c14ad2de52a1b906f19b174c173861c8dff39e72309df7f89d03bb6d","observation_id":"70063e69-b072-439c-ad21-4e94a420137b","resolution":{"observed_at":"2026-07-31T05:26:26.632542Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:13.731102+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:13.731102+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.803230Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":14,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.803230Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:eb097893090d3fdf5a4f6b47c13da769b68f452927f89aac73bbb96947c2317f","observation_id":"93880135-393e-4079-9b05-0abec4214173","resolution":{"observed_at":"2026-07-31T05:23:36.803230Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.829629Z","title":"Monthly Notices of the Royal Astronomical Society , author =","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":15,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.829629Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:ec40860091c330a425e8ab724b8cd6f752f3f8e3af5c7cf2a3b97d68a657a148","observation_id":"1baff56b-4eeb-45cd-a2c4-dcae1fd69b64","resolution":{"observed_at":"2026-07-31T05:23:36.829629Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.858987Z","title":"A&A , author =","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":16,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.858987Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:8b644c916bead363a217cea51ec02201b75094458c98df8931cf5f1dc467778f","observation_id":"d75969a9-650b-47be-b69b-394dc87986da","resolution":{"observed_at":"2026-07-31T05:23:36.858987Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.877748Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":18,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.877748Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:bab67e3fae39d951ed690763266ce5d1e777dbed0bdd4013c0c1d698106fc172","observation_id":"2e994008-4cde-4516-ab13-549579a91485","resolution":{"observed_at":"2026-07-31T05:23:36.877748Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.885593Z","title":"A&A , author =","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":19,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.885593Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:0869a30e536b5c7c748819a7dd9fc85fc0190abf198d9ec7459d773b5d600ee8","observation_id":"e5c77f07-b59f-4dd6-a6aa-f05b977a9ae7","resolution":{"observed_at":"2026-07-31T05:23:36.885593Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.899568Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2006},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":20,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.899568Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:ed4373a6608b7a09ff2e4c4574b15ba95fc04ec1d3a8e8c27b681876f8fde786","observation_id":"64786f44-559b-4bf7-aaa6-c9153daf08f8","resolution":{"observed_at":"2026-07-31T05:23:36.899568Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.910393Z","title":"ApJ , author =","venue":null,"work_id":null,"year":1986},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":21,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.910393Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:1544832bf9210096e8075de24a3509edfc73d2114375c20251d95f1645a43361","observation_id":"a81b935a-902f-4bd1-98b6-8ccc0a41be47","resolution":{"observed_at":"2026-07-31T05:23:36.910393Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.922641Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":22,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.922641Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:4c10566d4e429a57ef2438f0c99770f3df9637c49483a0f97d313f5dc56539d4","observation_id":"c3bff8ba-943e-435b-b143-06f9c5ff80ed","resolution":{"observed_at":"2026-07-31T05:23:36.922641Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.3847/1538-4357/836/1/116","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"ApJ , author =","venue":"The Astrophysical Journal","work_id":"55df9c8e-0bc3-4f09-bbf0-329d1318634c","year":2017},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":23,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.938276Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:291f9313a81a944306b88d1f7ac2fc0196f2d6757b8cdb1e7d4d26bfa84fd9aa","observation_id":"42ab3242-ba77-4fff-b7f3-a11a26c9102b","resolution":{"observed_at":"2026-07-31T05:26:26.380907Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:14.310561+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:14.310561+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.3847/1538-4357/aa8ee6","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"ApJ , author =","venue":"The Astrophysical Journal","work_id":"ce349655-9d69-431a-aa8c-b2edc7a2dc7a","year":2017},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":24,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.957739Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:cee0e6c20a050ddc50ab5620847eeddd6218a50effd040192271bd65c4f2b70e","observation_id":"a1fcb751-2b24-45b9-9797-382396206ada","resolution":{"observed_at":"2026-07-31T05:26:26.287157Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:14.375298+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:14.375298+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.3847/1538-4357/aaa410","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"ApJ , author =","venue":"The Astrophysical Journal","work_id":"047f6806-6a36-4e09-9f17-7745967bdb0f","year":2018},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":25,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.967788Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:a55a3592df6fbd1478429d7d3b3371e1df82cc86ad10411aac8f74150de66e14","observation_id":"d720d011-8ba9-4fe1-9e00-955c37854a9e","resolution":{"observed_at":"2026-07-31T05:26:26.184141Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:14.441806+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:14.441806+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.3847/1538-4357/aaf1a0","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"ApJ , author =","venue":"The Astrophysical Journal","work_id":"6f6e4ca4-99b3-4fad-a84f-b59686ad1c32","year":2019},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":26,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.986897Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:d416fca8151fb6eab165b69ef3cbe95d288277445ce327ad4d7a4e023e602330","observation_id":"64683999-3928-4d57-abe9-866f633653fa","resolution":{"observed_at":"2026-07-31T05:26:26.065610Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:14.49925+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:14.49925+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:36.998927Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":27,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:36.998927Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:cc640709870173fc6e216abc7342bc3b1621d25e9e339057cb68ca9fcb95fd95","observation_id":"94483589-9fe4-47aa-9c59-cacfbffdfbae","resolution":{"observed_at":"2026-07-31T05:23:36.998927Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.3847/1538-4357/aaf80b","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"ApJ , author =","venue":"The Astrophysical Journal","work_id":"0726f8f6-0704-4c44-b46d-7ae02bc41dec","year":2019},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":28,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.044744Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:ed013f3d26373bf805474da6d989b9a3af158c19b2571fce127b7794855a49d5","observation_id":"6504b01e-80e0-4349-b07d-638d369aba0a","resolution":{"observed_at":"2026-07-31T05:26:25.949993Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:14.622571+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:14.622571+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.3847/1538-4357/ab340a","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"ApJ , author =","venue":"The Astrophysical Journal","work_id":"37731ac0-8267-40e4-8404-d632f938fa7d","year":2019},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":29,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.094826Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:f5dd595138329bbceafdf5d067345781e68238bab2776073dd37dd8b70b9b9bd","observation_id":"070d909c-891e-4549-8ea2-0ed50abbdeee","resolution":{"observed_at":"2026-07-31T05:26:25.848456Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:14.688546+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:14.688546+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.144741Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":30,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.144741Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:e72e561bd7097d3ae2d41d456ec593679cfd7c39ee039838a6d904ebb4af9d0b","observation_id":"43577c90-e58b-4905-bfee-ffec2183dd2c","resolution":{"observed_at":"2026-07-31T05:23:37.144741Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.195016Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":31,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.195016Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:bbecd3470ccebd2a65629e61b32d434de9f6d168134e7929bc1a147f3a3c9755","observation_id":"86fc7cd6-c19b-4365-ac83-1ae6f7174fb9","resolution":{"observed_at":"2026-07-31T05:23:37.195016Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.3847/1538-4357/ac1fee","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"ApJ , author =","venue":"The Astrophysical Journal","work_id":"4b86e74e-2d76-46af-8b9c-6be847855eac","year":2021},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":32,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.234867Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:7744c67d4c8c5783f87b0d60b97f5a1b407c55d7d29e242505a2c7505afbba7f","observation_id":"794e6582-12f1-453c-8cec-e38553e4ddfc","resolution":{"observed_at":"2026-07-31T05:26:25.723482Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:14.87548+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:14.87548+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.261503Z","title":"Compton-","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":33,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.261503Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:8840570f69e022e0d2c0bcbb42253114d827153c562e4c04abeb7807602476bc","observation_id":"b1f15733-2048-476f-9e81-dae734de8940","resolution":{"observed_at":"2026-07-31T05:23:37.261503Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.286805Z","title":null,"venue":null,"work_id":null,"year":2022},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":34,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.286805Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:0ccdc946173120ee41b04cba396745e80905406c82bd79bd8f6f3bb8459d157b","observation_id":"c810a417-dde5-4b2e-8c26-40baaf68ce2d","resolution":{"observed_at":"2026-07-31T05:23:37.286805Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1051/0004-6361/201117974","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"A&A , author =","venue":"Astronomy and Astrophysics","work_id":"2e18094a-26ea-4d2d-912d-23e93e1bfbe5","year":2012},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":35,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.314166Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:22dd4a21ed4b469ffef21fba29e3952e40077f59afc1ae1688832e539b3192d9","observation_id":"a2554201-b4f4-4fcf-9a43-b6d8216b4493","resolution":{"observed_at":"2026-07-31T05:26:25.622673Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:14.931249+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:14.931249+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.333933Z","title":"and Bautz, Mark W","venue":null,"work_id":null,"year":2003},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":36,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.333933Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:7b9536f449f0ca78b3fdafe1f2bbb13b8bf23e3ef74e47cc47e006ece45bd6dd","observation_id":"92ce1ce9-4df2-4ff6-ac5a-1b3f5a16359c","resolution":{"observed_at":"2026-07-31T05:23:37.333933Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1051/0004-6361/201526127","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"A&A , author =","venue":"Astronomy and Astrophysics","work_id":"9e87b6ed-4a12-4ee1-9353-09dc12fde348","year":2015},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":37,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.346855Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:263cfde78485a369c26833cd5bbffced7f4805e119b85054ee007f602b7bfd9f","observation_id":"e3766fd5-0454-451e-af7c-7251423f0551","resolution":{"observed_at":"2026-07-31T05:26:25.315835Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:15.040779+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:15.040779+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1505.01166","last_updated":"2015-05-26T08:47:23Z","snapshot_observed_at":"2026-08-14T22:49:44.682778Z","submitted_at":"2015-05-05T20:01:27Z","title":"X-ray spectral variability of Seyfert 2 galaxies","version":3},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1505.01166","snapshot_observed_at":"2026-07-31T05:23:37.360231Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":38,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.360231Z"},"links":{"cited_paper":"/paper/1505.01166","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:cfc3df581b9690d1eff2f40ca66600d87cf19d4d3f54630c6d1c95bcb8a0f7c6","observation_id":"2d87ec38-9144-4365-8121-f1abeb379703","resolution":{"observed_at":"2026-07-31T05:23:37.360231Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1093/mnras/sty2535","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Monthly Notices of the Royal Astronomical Society , author =","venue":"Monthly Notices of the Royal Astronomical Society","work_id":"23a11530-3cba-48be-9d47-46b78c0ce594","year":2018},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":39,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.378899Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:0d5e40be58630d5fec88da5c07afcc0f1d21e1eff9f1f792a3eb3f2a9273bc0b","observation_id":"110b7293-60f3-4da3-96ab-60f485b31ffc","resolution":{"observed_at":"2026-07-31T05:26:25.185285Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:15.097594+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:15.097594+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1051/0004-6361/201935686","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"A&A , author =","venue":"Astronomy and Astrophysics","work_id":"8be32495-38c0-401c-a1c2-1b0e3bac5195","year":2019},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":40,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.402316Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:5b708b08a2db6bcba68e88c1cac0c0ebc1bd323c6c7b9608ded0444c94df19a7","observation_id":"4ffba7f9-e788-4518-b211-54fe40e6ff78","resolution":{"observed_at":"2026-07-31T05:26:25.084431Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:15.153112+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:15.153112+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.413648Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2005},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":41,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.413648Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:093d72fa6179f47082666656e0391a34a90fb72bd3c90085b2777e4e224846b0","observation_id":"6ba6ca00-8f63-4a09-987a-725ce1a5ef5f","resolution":{"observed_at":"2026-07-31T05:23:37.413648Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.423353Z","title":"Monthly Notices of the Royal Astronomical Society , author =","venue":null,"work_id":null,"year":2014},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":42,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.423353Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:11b6463f257d211bb6ede3d7a2156f0ff5a86257b66e1525e7f2f904ae042f01","observation_id":"eb7d7942-0374-4a59-8da7-6a0e65492f0c","resolution":{"observed_at":"2026-07-31T05:23:37.423353Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.444744Z","title":"A&A , author =","venue":null,"work_id":null,"year":2001},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":43,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.444744Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:e720af51152ddd5fbb91f2b07940e995c55c6d33e34304f033fcca81b9f0f00e","observation_id":"ec2f5da4-9ef7-4981-99ac-c16c01d638e4","resolution":{"observed_at":"2026-07-31T05:23:37.444744Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.544747Z","title":"A multi-epoch","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":45,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.544747Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:ae3390ee7b0f44134ae9c051e853d8d8dcce98d3d7af92eafe9e0824e64021ec","observation_id":"d776f673-6db4-4e01-8a92-1e797fc7fb7d","resolution":{"observed_at":"2026-07-31T05:23:37.544747Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.594736Z","title":"The Astrophysical Journal , volume=","venue":null,"work_id":null,"year":2022},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":46,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.594736Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:a4f6be63a0cbf4acfe3b9d4a0604653361e6a9d07bd203ee71492f84d02d52ff","observation_id":"3a4f7360-7129-490f-b810-17b42878ea61","resolution":{"observed_at":"2026-07-31T05:23:37.594736Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.613377Z","title":"Lynne and Brightman, Murray and Stern, Daniel and Malkan, Matthew A","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":47,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.613377Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:e7b18f6e9a1998ad7241a6eb880065655e9add8139d7399f50f45bca83f496f6","observation_id":"a1978d01-4cd3-4c14-a1a2-7b9ac437ccdf","resolution":{"observed_at":"2026-07-31T05:23:37.613377Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.620817Z","title":"A&A , author =","venue":null,"work_id":null,"year":2022},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":48,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.620817Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:fac2a902d377b489da8729d7f650ea544e875100658271c2bc2896ad0c1c254c","observation_id":"328f17d9-439a-417c-936b-80203c7732f3","resolution":{"observed_at":"2026-07-31T05:23:37.620817Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.636450Z","title":"A&A , author =","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":49,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.636450Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:a6796d92aee9862763088106bdae16552454a451b0698d78774f70a2f3882c70","observation_id":"90542dcb-550d-4036-9a9a-5e69706b6a36","resolution":{"observed_at":"2026-07-31T05:23:37.636450Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.643801Z","title":"A&A , author =","venue":null,"work_id":null,"year":2022},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":50,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.643801Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:8ae6f55287ae02ed1e8c57279240e49286ef26da2ca5808f40f1ff9cee8b7375","observation_id":"8bcc1cdb-9eea-46e6-8d5a-a312e06e7f9f","resolution":{"observed_at":"2026-07-31T05:23:37.643801Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1051/0004-6361/202038622","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"A&A , author =","venue":"Astronomy and Astrophysics","work_id":"50b8c0c2-6a7b-4bc1-ae41-01226901abf8","year":2020},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":51,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.653402Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:9e2a1720b626fc922c4a0a6c911a75866ad5bae8fa9deb67d166102e41c42fe9","observation_id":"581c9b67-1c6c-4318-8c59-df701e510aff","resolution":{"observed_at":"2026-07-31T05:26:24.821579Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:15.465965+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:15.465965+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.664840Z","title":"and Aird, James and Barger, Amy J","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":52,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.664840Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:54c422d694e85a47f65094fd0d69f7fec8d56857d471a2232df6bd86c9d85316","observation_id":"c4ee2a5b-222a-4945-8025-164d3cc360a9","resolution":{"observed_at":"2026-07-31T05:23:37.664840Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.673809Z","title":"Obscured","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":53,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.673809Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:7c3ec7785bfc57586e5327ec37cc9cde2e60c9aab823d845ee2329a6a1a6f15e","observation_id":"ee05f4fb-e4c9-4a62-b6fd-d990414798a0","resolution":{"observed_at":"2026-07-31T05:23:37.673809Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.684712Z","title":null,"venue":null,"work_id":null,"year":1993},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":54,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.684712Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:ee86294bb70ef8523b61c4b33c79d724808d9b5120d1068fb9114e03f85f9b11","observation_id":"84cb40ce-aa13-4be7-ad04-b5063c8e4273","resolution":{"observed_at":"2026-07-31T05:23:37.684712Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/9506063","last_updated":"1995-06-09T13:19:55Z","snapshot_observed_at":"2026-08-14T06:41:05.361842Z","submitted_at":"1995-06-09T01:34:08Z","title":"Unified Schemes for Radio-Loud Active Galactic Nuclei","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/9506063","snapshot_observed_at":"2026-07-31T05:23:37.692253Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":55,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.692253Z"},"links":{"cited_paper":"/paper/astro-ph/9506063","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:9229c2f084f73ff9fa742224c8877d55742a3d66878c7fe2af3f80d97606331f","observation_id":"3bbeaa56-436b-48cc-963d-be893c3dd6aa","resolution":{"observed_at":"2026-07-31T05:23:37.692253Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.699898Z","title":"ApJ , author =","venue":null,"work_id":null,"year":1988},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":56,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.699898Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:806832e730ce87ca6778d8314924a46f1bde80c182646b48a06c1df3e71dc4c5","observation_id":"7900193d-b0b2-4a29-8b4a-1847a7df6d22","resolution":{"observed_at":"2026-07-31T05:23:37.699898Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1086/186597","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":", keywords =","venue":"The Astrophysical Journal","work_id":"97acfd02-5e27-4c0d-afb4-d30a32639bbe","year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":57,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.708637Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:8da776f6e53fcf585f66b15e04dda6bde1fdaeadd3d7f07e4eeaf1006a9f68b2","observation_id":"c7b84c8f-d899-49ef-a8ac-b7d844ed0ad6","resolution":{"observed_at":"2026-07-31T05:26:24.729229Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:15.574834+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:15.574834+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0702396","last_updated":"2007-02-14T22:08:49Z","snapshot_observed_at":"2026-07-07T01:07:10.405449Z","submitted_at":"2007-02-14T22:08:49Z","title":"AGN Obscuring Tori Supported by Infrared Radiation Pressure","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/0702396","snapshot_observed_at":"2026-07-31T05:23:37.723012Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":58,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.723012Z"},"links":{"cited_paper":"/paper/astro-ph/0702396","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:50d9577ae9ccd9b29b53e5dce666b318c336bf692fd6d57ca623b836d6277f87","observation_id":"b9a46a07-8720-41d7-8587-0e2d43caf369","resolution":{"observed_at":"2026-07-31T05:23:37.723012Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.731395Z","title":"A&A , author =","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":59,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.731395Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:0962c0bf17c1cb9be739d82fae487ee17eb78353ab32cf4219459bdf9a2bdbfd","observation_id":"63395c45-7a92-441a-bc47-88d426453024","resolution":{"observed_at":"2026-07-31T05:23:37.731395Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.739742Z","title":"A&A , author =","venue":null,"work_id":null,"year":2011},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":60,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.739742Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:6b81b8b9b6c0a17866404e6924987232b3e4ef515769864ba6ddbc45022ec950","observation_id":"d5080e97-8c62-49f3-a5cb-24a91fbef39d","resolution":{"observed_at":"2026-07-31T05:23:37.739742Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.754188Z","title":"2022 , note =","venue":null,"work_id":null,"year":2022},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":62,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.754188Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:e1a702b65ba609e88464da1dbbb010e7f86bd9138c2026e2434ed57180b5b4f5","observation_id":"acb50004-6ae8-4aee-82c3-1a45d1b98f8f","resolution":{"observed_at":"2026-07-31T05:23:37.754188Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.761751Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":63,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.761751Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:60159a88494d1dcb0dc494dffef0d3d1a2734742f3c202a925f28274071c8c3b","observation_id":"2a9c15bd-828f-46cc-aa99-ee79db3e0574","resolution":{"observed_at":"2026-07-31T05:23:37.761751Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.774890Z","title":"and Fabian, Andrew C","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":64,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.774890Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:3e9ac03d2b2715d7c2b73072cbd236933db89f89377ecb88c27e09d88aa9565d","observation_id":"3ef12aad-832b-4361-8e48-de767544f4ed","resolution":{"observed_at":"2026-07-31T05:23:37.774890Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1086/312358","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"The Astrophysical Journal , author =","venue":"The Astrophysical Journal","work_id":"42153853-71b4-4bf9-b10e-a81cad639b0f","year":1999},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":65,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.784369Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:4648e2d82bb9d16e00f0a002f3893f57c2208e3e6c5be933347aaaf8f64a24f9","observation_id":"bbba7290-c312-44e5-859e-fc0e54af01ac","resolution":{"observed_at":"2026-07-31T05:26:24.576050Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:15.850331+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:15.850331+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"0804.0803","last_updated":"2008-04-04T20:04:07Z","snapshot_observed_at":"2026-08-15T10:18:13.374337Z","submitted_at":"2008-04-04T20:04:07Z","title":"The Hard X-ray Spectrum as a Probe for Black-Hole Growth in Radio-Quiet Active Galactic Nuclei","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"0804.0803","snapshot_observed_at":"2026-07-31T05:23:37.791034Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":66,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.791034Z"},"links":{"cited_paper":"/paper/0804.0803","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:a4f6d280b8e3e3fe35f87e2a9ca756ce67d7dad49bf38526515ad7509c169a69","observation_id":"f534e758-a00a-4e4a-ab0c-2d83224b22fc","resolution":{"observed_at":"2026-07-31T05:23:37.791034Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.805028Z","title":"ApJ , author =","venue":null,"work_id":null,"year":2009},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":67,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.805028Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:5fcf5a5bb0d952fd7a9d85d6ab70abedaad3cf55c40afedbeba05a9b782e14f0","observation_id":"6ec053fd-c744-4f73-aa26-f8082abe98a7","resolution":{"observed_at":"2026-07-31T05:23:37.805028Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.813434Z","title":"Statistical Problems in Particle Physics, Astrophysics, and Cosmology , year = 2003, editor =","venue":null,"work_id":null,"year":2003},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":68,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.813434Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:ecde57b370eca109e5e47afe450604b177d25fb6406543d2cbf3d9065bb9cd91","observation_id":"ca825adf-9c15-40a0-b324-a118c2b9841e","resolution":{"observed_at":"2026-07-31T05:23:37.813434Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.820724Z","title":"arXiv e-prints , keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":69,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.820724Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:f48f018d51fb3ffd4a37a7061c22c840aa5e7e8a4bac647ba27273708695bcc0","observation_id":"cdddd49a-3fad-4dca-aa23-3e8eda5e512a","resolution":{"observed_at":"2026-07-31T05:23:37.820724Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1117/12.2273803","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series , year = 2017, editor =","venue":null,"work_id":"2579115c-9fb5-4962-88d7-f901c49db96b","year":2017},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":70,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.830545Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:d236ccd6e239485062b001c8ddec7f501e91bea1f7ba5fd82954b72c8290865d","observation_id":"fc476eac-c728-4363-8fe9-5684ec9eed1e","resolution":{"observed_at":"2026-07-31T05:26:24.477494Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:15.974578+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:15.974578+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1364/ao.446958","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":", year = 2022, month = jan, volume =","venue":"Applied Optics","work_id":"679ec499-7956-4c2a-a21b-54eda35391cf","year":2022},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":71,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.849563Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:92ee9163b643a4b333b73ace0b046f9735ae7ca23e663d87859b7f956ce37a67","observation_id":"7302e82d-5968-4640-aa04-b708b6db7780","resolution":{"observed_at":"2026-07-31T05:26:24.379584Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:16.044933+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:16.044933+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.859654Z","title":"Pattern recognition letters , volume=","venue":null,"work_id":null,"year":2006},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":72,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.859654Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:41f238ff06d0c4dd91f9fe90ec57e702851632a7c9fc6edc90fdd61b33a9acb3","observation_id":"fecb3da7-83d1-41b1-9664-195bef831041","resolution":{"observed_at":"2026-07-31T05:23:37.859654Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.874240Z","title":"Remote sensing of Environment , volume=","venue":null,"work_id":null,"year":1997},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":73,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.874240Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:b25319cd799d895b4ffb9db122818a8b688e62f229d50dcbe122e8bdc862593e","observation_id":"9ab641fe-64c7-445f-a380-ef86ffceb901","resolution":{"observed_at":"2026-07-31T05:23:37.874240Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.882748Z","title":"Proceedings of the Joint IBM/University of Newcastle upon Tyne Seminar on Data Base Systems , volume=","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":74,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.882748Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:73506654298c8d93da3d70cd20e5656c49af5928d507a682b55f6e8187e46496","observation_id":"20ecd95e-757b-4d09-a6e5-4eadde57c8ff","resolution":{"observed_at":"2026-07-31T05:23:37.882748Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0202405","last_updated":"2002-02-21T22:28:40Z","snapshot_observed_at":"2026-08-14T19:15:41.751090Z","submitted_at":"2002-02-21T22:28:40Z","title":"Dust Emission from Active Galactic Nuclei","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/0202405","snapshot_observed_at":"2026-07-31T05:23:37.894319Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":75,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.894319Z"},"links":{"cited_paper":"/paper/astro-ph/0202405","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:b1d98aaa4ac00c939791ad974dd6955130303d22507ebc85a88ab308b5c665d0","observation_id":"56578196-a4c9-47a6-85ad-0ca54ba7b06e","resolution":{"observed_at":"2026-07-31T05:23:37.894319Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"0806.0512","last_updated":"2008-06-03T11:56:55Z","snapshot_observed_at":"2026-08-15T10:14:04.567422Z","submitted_at":"2008-06-03T11:56:55Z","title":"AGN Dusty Tori: II. Observational Implications of Clumpiness","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"0806.0512","snapshot_observed_at":"2026-07-31T05:23:37.904340Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":76,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.904340Z"},"links":{"cited_paper":"/paper/0806.0512","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:952d8932ed6cb0c582ad4224f05d9e0be5587daae18f46fa1b0c7e16563c5437","observation_id":"115cf945-831f-4f90-abae-fc039cf6ccbb","resolution":{"observed_at":"2026-07-31T05:23:37.904340Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1604.03556","last_updated":"2016-04-12T20:00:06Z","snapshot_observed_at":"2026-08-14T22:01:57.886073Z","submitted_at":"2016-04-12T20:00:06Z","title":"Long-term X-Ray Spectral Variability in AGN from the Palomar sample observed by Swift","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1604.03556","snapshot_observed_at":"2026-07-31T05:23:37.921362Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":77,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.921362Z"},"links":{"cited_paper":"/paper/1604.03556","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:34e0e676e58e9368b7e8a9534cbf0de316a5f70954a70c92a23b83f4820d8a3b","observation_id":"99d83dd4-3bcb-4d48-9a2b-2bbcbcff5cbf","resolution":{"observed_at":"2026-07-31T05:23:37.921362Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2301.07138","last_updated":"2023-01-17T19:07:25Z","snapshot_observed_at":"2026-08-16T16:01:51.649633Z","submitted_at":"2023-01-17T19:07:25Z","title":"Hydrogen Column Density Variability in a Sample of Local Compton-Thin AGN","version":1},"cited_work":{"arxiv_id":"2301.07138","doi":"10.48550/arxiv.2301.07138","metadata_source":"pith","pith_arxiv_id":"2301.07138","snapshot_observed_at":"2026-08-05T02:49:54.815029Z","title":"Hydrogen Column Density Variability in a Sample of Local Compton-Thin AGN","venue":"astro-ph.GA","work_id":"5c5cd4b1-c13e-4f98-9c61-fd448662676d","year":2023},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":78,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.928798Z"},"links":{"cited_paper":"/paper/2301.07138","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:fad39543ec9859fea3263dc3873f03458e62dbbb80c696a2b4425b7e7456c8a6","observation_id":"3bf9930c-e5d1-4677-8da2-ddf853c23c90","resolution":{"observed_at":"2026-07-31T05:26:24.215704Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:16.094338+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:16.094338+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.939863Z","title":"Monthly Notices of the Royal Astronomical Society , volume=","venue":null,"work_id":null,"year":2014},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":79,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.939863Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:6158a42a588591cb39ae2e042a0d302eac60ec58c1e6fa7ad93ad872548a0542","observation_id":"871f4173-8faa-46f1-953b-b5513f690858","resolution":{"observed_at":"2026-07-31T05:23:37.939863Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.947815Z","title":"The Astrophysical Journal , volume=","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":80,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.947815Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:dd81e5e561e13d980e6a95a3a55d248c488083d65873484720a074d67493691d","observation_id":"ec77d383-0315-4ee6-afd9-1f4cc8431ed9","resolution":{"observed_at":"2026-07-31T05:23:37.947815Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.953235Z","title":"The Astrophysical Journal , volume=","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":81,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.953235Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:0991e0a3b6bdfc13af40f2613442727f6d94451b36dd3bd9420dd2733555c5bc","observation_id":"b81e89cc-3248-4124-881e-aa85e4f9db19","resolution":{"observed_at":"2026-07-31T05:23:37.953235Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.961481Z","title":"Monthly Notices of the Royal Astronomical Society , volume=","venue":null,"work_id":null,"year":2023},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":82,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.961481Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:e2737aaf60817b2dd9954b6ec99a50cdfafb5b68420d9f3488cf4786a8963bbf","observation_id":"845fe95d-1d3b-4f7f-aeca-e62b4320dffd","resolution":{"observed_at":"2026-07-31T05:23:37.961481Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.969379Z","title":"Monthly Notices of the Royal Astronomical Society , volume=","venue":null,"work_id":null,"year":2023},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":83,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.969379Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:3f291a026d468f8d2cfc3eea3d2b9a17aeb79f0d1ee8efa188d37ea09dbcaff3","observation_id":"d8ad97da-d8ce-471e-9082-f3c5d3c039ea","resolution":{"observed_at":"2026-07-31T05:23:37.969379Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.976754Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":84,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.976754Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:641721ed302ce4dc15dcb602fa0dc5265ad90208facb2063898795491e31bfd6","observation_id":"b09c2b3a-4383-409b-87a9-47d31276f5e2","resolution":{"observed_at":"2026-07-31T05:23:37.976754Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2303.04717","last_updated":"2023-03-12T12:33:09Z","snapshot_observed_at":"2026-08-16T15:49:46.703909Z","submitted_at":"2023-03-08T17:01:41Z","title":"Transient obscuration event captured in NGC 3227 IV. Origin of the obscuring cloud variability","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2303.04717","snapshot_observed_at":"2026-07-31T05:23:37.983103Z","title":"Origin of the obscuring cloud variability , author=","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":85,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.983103Z"},"links":{"cited_paper":"/paper/2303.04717","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:bf7da5817825be1f904b28667378d0aedc18ff174a82fa81e2ac885bb8e3031e","observation_id":"47e35dda-c10b-48af-bc59-50fed161c760","resolution":{"observed_at":"2026-07-31T05:23:37.983103Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.989524Z","title":"Monthly Notices of the Royal Astronomical Society , volume=","venue":null,"work_id":null,"year":2014},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":86,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.989524Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:cdad1d6b2277bee87537ab1067a83f22b2abc76b5d5a086a97574f20f4a7bf47","observation_id":"b2adc54e-5ab6-4817-afd3-6e20ca5812e6","resolution":{"observed_at":"2026-07-31T05:23:37.989524Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:37.996186Z","title":"Astronomy & Astrophysics , volume=","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":87,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:37.996186Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:f9dca33f5fc7011c248e0a6601077da6142d09e4455e4147bbc9482cb0fd9d51","observation_id":"922f21eb-d21b-4ee2-b6f7-0fb087bd28c9","resolution":{"observed_at":"2026-07-31T05:23:37.996186Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:38.001490Z","title":"The Astrophysical Journal Letters , volume=","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":88,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.001490Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:4590c35c216cb26d4d975f4d3b6522114c009b9bd517c5140e4650debac7eac7","observation_id":"506c0206-18b7-415d-9e2b-8ee41fb340cb","resolution":{"observed_at":"2026-07-31T05:23:38.001490Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:38.008622Z","title":"The Astrophysical Journal , volume=","venue":null,"work_id":null,"year":2009},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":89,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.008622Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:e8075b49c8dcdac70d907cd3227a07dc9cfea3f7800461187168509c7add6480","observation_id":"3a49e385-dd08-466a-a8eb-0234a45ae87c","resolution":{"observed_at":"2026-07-31T05:23:38.008622Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:38.016164Z","title":"Astronomy & Astrophysics , volume=","venue":null,"work_id":null,"year":2013},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":90,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.016164Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:2c66fc20c7ec05039dc66ca54cff25eb634b5458c9bdbdf113fbded7f10300fc","observation_id":"24cacdcd-728d-4ba0-9797-bdcb5dcf9f9c","resolution":{"observed_at":"2026-07-31T05:23:38.016164Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:38.023094Z","title":"Astronomy & Astrophysics , volume=","venue":null,"work_id":null,"year":2015},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":91,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.023094Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:0a75e9c2bb909ee295be1ff6a89c291b7094345f5537f30cdef8a5dc85d292aa","observation_id":"2497cb4a-3097-4e62-bc81-fc7c681a6016","resolution":{"observed_at":"2026-07-31T05:23:38.023094Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1402.1836","last_updated":"2014-03-26T09:37:21Z","snapshot_observed_at":"2026-08-14T23:45:23.637935Z","submitted_at":"2014-02-08T09:05:08Z","title":"Toward the Standard Population Synthesis Model of the X-Ray Background: Evolution of X-Ray Luminosity and Absorption Functions of Active Galactic Nuclei Including Compton-Thick Populations","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1402.1836","snapshot_observed_at":"2026-07-31T05:23:38.038028Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":92,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.038028Z"},"links":{"cited_paper":"/paper/1402.1836","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:9fc72643be91f877a33b8287f2d37c59037a4fd2b986c11f14a7dcbcb919bd9a","observation_id":"8c61f532-61f9-4b1c-bd73-147387d9192e","resolution":{"observed_at":"2026-07-31T05:23:38.038028Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1402.0004","last_updated":"2014-01-31T21:00:12Z","snapshot_observed_at":"2026-08-14T23:46:13.982156Z","submitted_at":"2014-01-31T21:00:12Z","title":"X-ray spectral modelling of the AGN obscuring region in the CDFS: Bayesian model selection and catalogue","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1402.0004","snapshot_observed_at":"2026-07-31T05:23:38.045053Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":93,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.045053Z"},"links":{"cited_paper":"/paper/1402.0004","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:1325158596c00bfe08eca86aa1d611b553346f69a9f5267542d5e92386066df4","observation_id":"26dbf091-9a1f-4c7a-9a40-304676c155f6","resolution":{"observed_at":"2026-07-31T05:23:38.045053Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2101.09604","last_updated":"2021-04-07T13:27:40Z","snapshot_observed_at":"2026-08-17T22:39:01.692191Z","submitted_at":"2021-01-23T23:32:43Z","title":"UltraNest -- a robust, general purpose Bayesian inference engine","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2101.09604","snapshot_observed_at":"2026-07-31T05:23:38.055096Z","title":"The Journal of Open Source Software , keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":94,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.055096Z"},"links":{"cited_paper":"/paper/2101.09604","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:8ac3f9f6557778c0d3ab56c73d30ec9eaeda839e3b5e82cd44bbcfdb917dd5f2","observation_id":"85f486f5-f371-4bff-af82-c2cf9341b717","resolution":{"observed_at":"2026-07-31T05:23:38.055096Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.26093/cds/vizier.22350004","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"doi:10.26093/cds/vizier.22350004 , adsurl =","venue":"Strasbourg Astronomical Data Center","work_id":"214dfb6f-0f05-46f3-9f59-a69c695d78d8","year":2018},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":95,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.072122Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:962c323b2c7b46271d9105ffcb48da1754e6e9cf132df826ce03ef756cf35db3","observation_id":"dce91b7f-6391-4388-93f3-b25fc77ffd45","resolution":{"observed_at":"2026-07-31T05:26:24.101945Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-08T09:38:16.136977+00:00","source":"crossref_status_cache"},{"observed_at":"2026-08-08T09:38:16.136977+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:38.080263Z","title":"Observatory Operations: Strategies, Processes, and Systems , year = 2006, editor =","venue":null,"work_id":null,"year":2006},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":96,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.080263Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:09679bafd04e6b72365b88aabebe49f171b1fe2c88d954f975cfeb890f5df83f","observation_id":"b09bcabf-e6ee-436c-ac22-21162886ac48","resolution":{"observed_at":"2026-07-31T05:23:38.080263Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0501105","last_updated":"2005-01-06T21:21:11Z","snapshot_observed_at":"2026-08-11T18:21:53.990040Z","submitted_at":"2005-01-06T21:21:11Z","title":"X-ray Luminosity and Absorption Column Fluctuations in the H2O Maser Galaxy NGC 4258 from Weeks to Years","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/0501105","snapshot_observed_at":"2026-07-31T05:23:38.091746Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":97,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.091746Z"},"links":{"cited_paper":"/paper/astro-ph/0501105","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:a097fab18d88f3c5b76806914217298b50f37461ff774dfc7a54b115cde74a12","observation_id":"a0cf8f5a-703b-4ffb-856d-4ed54d4a557e","resolution":{"observed_at":"2026-07-31T05:23:38.091746Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:38.101443Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":98,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.101443Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:e734986912ca2ffbb2cad9649342974920c930e563b677356c8607e27223091d","observation_id":"d4de47b5-eb18-4acb-b593-a2ceb9e1119c","resolution":{"observed_at":"2026-07-31T05:23:38.101443Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2205.07899","last_updated":"2022-05-16T18:00:02Z","snapshot_observed_at":"2026-08-16T16:59:56.375889Z","submitted_at":"2022-05-16T18:00:02Z","title":"A comprehensive X-ray view of the active nucleus in NGC 4258","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2205.07899","snapshot_observed_at":"2026-07-31T05:23:38.107536Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":99,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.107536Z"},"links":{"cited_paper":"/paper/2205.07899","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:6ab9036a73a911a2d67479a1ffcb15e9327c7066fe40d7c76a39999570669245","observation_id":"929f093d-a934-44d4-be78-5e6e6136f5b9","resolution":{"observed_at":"2026-07-31T05:23:38.107536Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/9909315","last_updated":"1999-09-20T10:44:54Z","snapshot_observed_at":"2026-07-07T01:28:27.106765Z","submitted_at":"1999-09-17T17:36:13Z","title":"The ROSAT All-Sky Survey Bright Source Catalogue","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/9909315","snapshot_observed_at":"2026-07-31T05:23:38.115529Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":100,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.115529Z"},"links":{"cited_paper":"/paper/astro-ph/9909315","citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:76fd6bf7b28c5df831663fe84e6d730b74144ea816f1bacfe7ecb224f030631a","observation_id":"b69e2321-85b6-410e-bd5a-83114ed8afd4","resolution":{"observed_at":"2026-07-31T05:23:38.115529Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:38.124354Z","title":null,"venue":null,"work_id":null,"year":2008},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":101,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.124354Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:4ebda4019374af4f08c6450dd6cb2ea98ec03e4bc0909fce1a90488c5f3842cf","observation_id":"a6ad31f2-9c9b-48c5-8ffc-326ddf9873ef","resolution":{"observed_at":"2026-07-31T05:23:38.124354Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:38.133478Z","title":"Monthly Notices of the Royal Astronomical Society , volume=","venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":102,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.133478Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:4402106880be2e48a5f143ed2191d92ab33b254a71f0a5a9e2e9f0f1a9cce255","observation_id":"693e2845-f908-467d-a613-20782a749a57","resolution":{"observed_at":"2026-07-31T05:23:38.133478Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-31T05:23:38.154426Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei","version":1},"reference_index":103,"source":"arxiv_source","source_observed_at":"2026-07-31T05:23:38.154426Z"},"links":{"citing_paper":"/paper/2607.28501"},"observation_digest":"sha256:00666d1f666e70cff5bf2966467a7a4bdefc65d0640a4447b1c7f840c458f411","observation_id":"7e16732a-8067-4d5f-81c2-5c3547905f78","resolution":{"observed_at":"2026-07-31T05:23:38.154426Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"paper":{"arxiv_id":"2607.28501","last_updated":"2026-07-30T16:45:53Z","latest_version":1,"primary_category":"astro-ph.GA","snapshot_observed_at":"2026-08-17T10:02:58.169499Z","submitted_at":"2026-07-30T16:45:53Z","title":"X-ray Absorption Variability in NGC 1142: Another Constraint on the Nature of the Torus/Broad-Line Region in Active Galactic Nuclei"},"reference_resolution":{"displayed":100,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":81,"verified_exact":19,"verified_fuzzy":0},"total_outbound_references":287},"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":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"thesis":"As of 18 August 2026, this Paper Citation Record lists 100 of 287 outbound references and 0 inbound Pith citation observations for arXiv:2607.28501."}