{"as_of":"2026-08-21T04:47:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:41cd04c77203b22a9668d7e72398acc6e45563324326caa6e0fb7b2da6bdd902","coverage":[{"denominator":128,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":100,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-14T13:39:36.318999Z","state":"measured"},{"denominator":101,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":101,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-20T06:33:59.587034+00:00","state":"measured"},{"denominator":1,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":1,"source":"paper_references, paper_reference_links","source_observed_at":"2026-05-18T12:11:33.233999Z","state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"arxiv_reference","source_observed_at":"2026-05-18T12:12:36.313898Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"cited_work":{"arxiv_id":"1908.04795","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"1908.04795","snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":"Sachdev-ye-kitaev models as a plat- form for strange metal physics","venue":null,"work_id":"a93339a0-6c03-49d0-a9da-5c238823ce44","year":2019},"citing_paper":{"arxiv_id":"2509.22977","last_updated":"2026-03-25T20:49:29Z","snapshot_observed_at":"2026-07-06T22:30:55.313733Z","submitted_at":"2025-09-26T22:19:20Z","title":"Sachdev-Ye-Kitaev Model in a Quantum Glassy Landscape","version":2},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-05-18T12:11:33.233999Z"},"links":{"cited_paper":"/paper/1908.04795","citing_paper":"/paper/2509.22977"},"observation_digest":"sha256:d0a2d1c30e0a5d05cadb6a44bca9ac84eab1050748f41a8418edacbd9346d45e","observation_id":"b7a42826-9811-4dd5-b035-88dbb5f74745","resolution":{"observed_at":"2026-05-18T12:12:36.317249Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/1908.04795/citation-record","integrity":"/paper/1908.04795/integrity","json":"/paper/1908.04795/citation-record.json","paper":"/paper/1908.04795"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:35.557302Z","title":"T., Salvato, M., LaMassa, S., et al","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.557302Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:e903a00fff45efd0f0fab4dfc714367f6a83da88a67a44ed7f586f16db6e70f5","observation_id":"2e9acc00-cfe1-4513-96f1-914471ada0a0","resolution":{"observed_at":"2026-08-14T13:39:35.557302Z","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":"2026-08-14T13:39:35.567135Z","title":"T., Treister, E., Urry, C","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.567135Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:eaa6599ccd8bdbb939e81db9815bd3f93ee7685312703a586ebc7d424bcdb0fe","observation_id":"196b5963-5e28-4702-a7bf-b8b1164e2c3e","resolution":{"observed_at":"2026-08-14T13:39:35.567135Z","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":"2026-08-14T13:39:35.573496Z","title":"1999, MNRAS, 310, 540","venue":null,"work_id":null,"year":1999},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.573496Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:226d2e2f093143f932d01623f34866ac48819864d520bd5824350f6958e7004b","observation_id":"0a887dce-08c0-4e70-9d46-95255c746317","resolution":{"observed_at":"2026-08-14T13:39:35.573496Z","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":"2026-08-14T13:39:35.579821Z","title":"J., Stern, D., Noirot, G., et al","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.579821Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:8a15681b1a99b46cb341559adf79981b9131764d2ec4116236a081109f0a0645","observation_id":"c6e480bf-1b59-4689-b898-a3122997c421","resolution":{"observed_at":"2026-08-14T13:39:35.579821Z","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":"2026-08-14T13:39:35.585467Z","title":"L., Aird, J., et al","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.585467Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:cd4b2268ce89fd61df029cf98a58ff6fa00009d73e98b3fdf284890d9d416aaf","observation_id":"847e07b4-8d20-4e85-b7ac-88abf2cd2ee8","resolution":{"observed_at":"2026-08-14T13:39:35.585467Z","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":"2026-08-14T13:39:35.594329Z","title":"A., Phillips, M","venue":null,"work_id":null,"year":1981},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.594329Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:39a37be079b288c2a53c641cc2f24ef63a6e03c6e9130f177be14159236f5969","observation_id":"3daa9d7e-a0a3-4d52-b254-48dcbdab1fa9","resolution":{"observed_at":"2026-08-14T13:39:35.594329Z","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":"2026-08-14T13:39:35.603228Z","title":"2002, ApJ, 571, 712","venue":null,"work_id":null,"year":2002},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.603228Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:188ce494198438a5176517af7a8aec6461ddd4142ffc5cd872c1042b54dc0b0b","observation_id":"2b0a73fa-4ce3-43fe-81dd-d221633063cb","resolution":{"observed_at":"2026-08-14T13:39:35.603228Z","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":"2026-08-14T13:39:35.611341Z","title":"N., Auger, M","venue":null,"work_id":null,"year":2011},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.611341Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:e2f9cdc8e0be31472a3ae943355a0d144a07bb8d237a7a7362fdf79e85f561c7","observation_id":"4deec594-a577-499e-8d19-6afdb8320bcd","resolution":{"observed_at":"2026-08-14T13:39:35.611341Z","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":"2026-08-14T13:39:35.620127Z","title":"2013, A&A, 551, A100","venue":null,"work_id":null,"year":2013},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.620127Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:5b65ea8b253c81a01f50fa0d13566921f5fdb481b78335b9defe3fe1c7ef8b0e","observation_id":"5307bda2-41b4-4f89-bd76-2f14a706a076","resolution":{"observed_at":"2026-08-14T13:39:35.620127Z","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":"2026-08-14T13:39:35.626750Z","title":"2019, A&A, 622, A103","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.626750Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:f38a864e433d1e57ae91651e2aa83e78d34f19dbe9f15e119a331005341381b7","observation_id":"81f3dd77-c9a0-463b-afea-7ab459009730","resolution":{"observed_at":"2026-08-14T13:39:35.626750Z","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":"2026-08-14T13:39:35.634570Z","title":"N., Alexander, D","venue":null,"work_id":null,"year":2001},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.634570Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:09609b42a8bdd715672deec2bbc52ca08fc0602a936ab2f69168da7b68e30f93","observation_id":"79dccc6c-6830-48a9-8666-91710d3b47fd","resolution":{"observed_at":"2026-08-14T13:39:35.634570Z","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":"2026-08-14T13:39:35.643632Z","title":"2014, MNRAS, 443, 1999","venue":null,"work_id":null,"year":2014},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.643632Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:a699a6e805deaa46d638a11623fe2bc5b6111dc9edf385f8fd060695c3030dae","observation_id":"64b039ee-7091-4f7f-8025-ce3256d91138","resolution":{"observed_at":"2026-08-14T13:39:35.643632Z","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":"2026-08-14T13:39:35.652710Z","title":null,"venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.652710Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:bd21287afe25aba5af27f14ea3f7ac75fb9c646a3f6e10543f05c124f315de11","observation_id":"0bcbffa9-a784-42a5-ad8e-b86a9c88041a","resolution":{"observed_at":"2026-08-14T13:39:35.652710Z","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":"2026-08-14T13:39:35.663374Z","title":null,"venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.663374Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:ab1bb2f8fddce94e9bb38ab327b8b841997cfbc630050e8b0ab4369c6c057e86","observation_id":"76e84389-1bf3-48a7-ae9b-422451bdcc13","resolution":{"observed_at":"2026-08-14T13:39:35.663374Z","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":"2026-08-14T13:39:35.669939Z","title":"2005, MNRAS, 360, 1413","venue":null,"work_id":null,"year":2005},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.669939Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:297922160ea8b8b0b0ae33eb32ffc704ae76c0a2d4ddddf42dd6605eb20be182","observation_id":"4caaf2bd-bbb6-4c71-a940-2b145bc10858","resolution":{"observed_at":"2026-08-14T13:39:35.669939Z","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":"2026-08-14T13:39:35.676901Z","title":"2007, ApJS, 172, 341","venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.676901Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:21e6aa7007eac8700368c1336871e4ec1f4f61a9ad2b142b65f2ebeedbe73152","observation_id":"ae7cc3da-5324-4fd5-b473-8820d96c2750","resolution":{"observed_at":"2026-08-14T13:39:35.676901Z","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":"2026-08-14T13:39:35.682930Z","title":"M., Narayanan, D., & Cooray, A","venue":null,"work_id":null,"year":2014},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":17,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.682930Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:e1057648801a2175835ec3b67b4525b967a49e07034b406a468d3d211d9ce48e","observation_id":"089887c9-fce5-4559-af89-a598c5c6e26c","resolution":{"observed_at":"2026-08-14T13:39:35.682930Z","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":"2026-08-14T13:39:35.688483Z","title":null,"venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.688483Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:edec8ce53d4358744027e2c31297e33682a0629945a2c4934aaab86e9b2c1091","observation_id":"e89f257b-aadb-413a-a039-a6e76788e633","resolution":{"observed_at":"2026-08-14T13:39:35.688483Z","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":"2026-08-14T13:39:35.695051Z","title":"2016, ApJ, 819, 62","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.695051Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:85afdc6cc3829248a756477487cc12b7b11024a5fc304718b3e4684d136f7fcc","observation_id":"b58e4c91-1229-4d95-a3ba-0e1acfaf1f39","resolution":{"observed_at":"2026-08-14T13:39:35.695051Z","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":"2026-08-14T13:39:35.705224Z","title":"2013, ApJ, 762, 70","venue":null,"work_id":null,"year":2013},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.705224Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:0a320767cdcb39d2f5d461be0582bcd59d28444948068e209906574c0248b1f0","observation_id":"d47a0edd-acd0-48b9-90aa-e089b2f6eceb","resolution":{"observed_at":"2026-08-14T13:39:35.705224Z","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":"2026-08-14T13:39:35.712987Z","title":null,"venue":null,"work_id":null,"year":2008},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.712987Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:db78bd777b83fa2bfab519187adcbd6d7274f8207a0d787d4f865a31326dc87e","observation_id":"fc40611f-f538-4667-854b-aada5578e1c5","resolution":{"observed_at":"2026-08-14T13:39:35.712987Z","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":"2026-08-14T13:39:35.721307Z","title":"S., Elvis, M., Bergeron, J., et al","venue":null,"work_id":null,"year":2014},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.721307Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:e7e3b46cb0c8db9af293cd1a1b014733c1d81d7fcff0fb06b2149071d37ae34e","observation_id":"4b796925-7670-40ad-a761-3a80b4f4e23b","resolution":{"observed_at":"2026-08-14T13:39:35.721307Z","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":"2026-08-14T13:39:35.730649Z","title":"J., Lang, D., et al","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":23,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.730649Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:10a0a94d4bf6519ebd21829b4ffea4ccbd5bc103640aaf4575514da9a500cffa","observation_id":"82c3a604-31ae-4e18-a00b-b68f71a8e831","resolution":{"observed_at":"2026-08-14T13:39:35.730649Z","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":"2026-08-14T13:39:35.736162Z","title":"L., Koekemoer, A","venue":null,"work_id":null,"year":2012},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.736162Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:96ab8bc960266aecb66611832e6494c307a940caf45ef11468506307f7b284ae","observation_id":"2d198ffd-33b8-46a7-8e0d-3b81edfdab61","resolution":{"observed_at":"2026-08-14T13:39:35.736162Z","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":"2026-08-14T13:39:35.741226Z","title":null,"venue":null,"work_id":null,"year":2003},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.741226Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:c5a18bf1c9797b8962bc978e5a99fc86e7e79a63209614448c75e5ee47d21851","observation_id":"a99a756c-d9cd-4b8a-951b-2711bcb202ff","resolution":{"observed_at":"2026-08-14T13:39:35.741226Z","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":"2026-08-14T13:39:35.746633Z","title":null,"venue":null,"work_id":null,"year":2012},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.746633Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:f404b2670032fa2195a5adca26974ef13844b66141ba4a099834c14bcf47bb89","observation_id":"31e46853-4132-4fdd-8cc9-2907af89e99c","resolution":{"observed_at":"2026-08-14T13:39:35.746633Z","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":"2026-08-14T13:39:35.756870Z","title":"2007, A&A, 468, 33","venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.756870Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:10518143298a48fe16a089b9044e7e30f1fea13259506e0a7fa91366d26ccfa7","observation_id":"7e1dd8f7-6682-443f-9abf-106fc4eafd21","resolution":{"observed_at":"2026-08-14T13:39:35.756870Z","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":"2026-08-14T13:39:35.764219Z","title":"S., et al","venue":null,"work_id":null,"year":2011},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.764219Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:5d6d441fcde4af1c14639d26b2e680ba67f35beca2c92dcb6b84e932f2927dae","observation_id":"c270ec51-f02c-49b7-ac40-80cf3b090d1d","resolution":{"observed_at":"2026-08-14T13:39:35.764219Z","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":"2026-08-14T13:39:35.772883Z","title":"2006, ApJ, 648, L101","venue":null,"work_id":null,"year":2006},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":29,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.772883Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:0c6fc891b7fd7a059610ca0d4c5ac3e21b4446a5f1d279472a5e2d3e83f8df4d","observation_id":"c087bea7-ba38-471e-bf02-ebc1758e2c88","resolution":{"observed_at":"2026-08-14T13:39:35.772883Z","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":"2026-08-14T13:39:35.779398Z","title":"J., McDowell, J","venue":null,"work_id":null,"year":1994},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":30,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.779398Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:2aabba38bb48de7f2d722fcc7b5f0420259036e248778248df2e0f00cb93d080","observation_id":"1e963fca-0a2e-4b10-adcc-4184edf48862","resolution":{"observed_at":"2026-08-14T13:39:35.779398Z","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":"2026-08-14T13:39:35.787457Z","title":"2009, ApJS, 184, 158","venue":null,"work_id":null,"year":2009},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":31,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.787457Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:9597b0e0bbadcbf69f3e463f072e265bd6074ba4ef5a05645c291e180577790d","observation_id":"8359c4f0-a9a0-4299-bb04-4da737bc7e61","resolution":{"observed_at":"2026-08-14T13:39:35.787457Z","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":"2026-08-14T13:39:35.795277Z","title":"T., Honscheid, K., et al","venue":null,"work_id":null,"year":2015},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":32,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.795277Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:737b394035776104766b45e1585794e6f296abc84b1c136f116c2488932ae0d9","observation_id":"b6ebf149-93af-40fb-b079-09727c98e0db","resolution":{"observed_at":"2026-08-14T13:39:35.795277Z","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":"2026-08-14T13:39:35.805512Z","title":"2016, MNRAS, 456, 1359","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":33,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.805512Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:04923bea0e9b646f3ad9a21b8a6f9a5ebbf1922e62fb782d399c3d0ee8f35653","observation_id":"aa76f7f0-c4d6-47c0-ae67-c70a9bffca1e","resolution":{"observed_at":"2026-08-14T13:39:35.805512Z","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":"2026-08-14T13:39:35.811075Z","title":"T., Ivison, R","venue":null,"work_id":null,"year":1998},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":34,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.811075Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:2410b1581801af46ea668c1d7c47c4a03c753e60d709d9a84fc751eb24f56d82","observation_id":"16936340-2877-4abe-a693-00dd83eef5fa","resolution":{"observed_at":"2026-08-14T13:39:35.811075Z","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":"2026-08-14T13:39:35.820898Z","title":"2006, MNRAS, 366, 767","venue":null,"work_id":null,"year":2006},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":35,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.820898Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:6ad6a092309526d7dff1f0b67f59dd4556a9194616e82f73ae3edfe3a3455bfe","observation_id":"5907aa23-cf8e-4793-93f0-7fcca2322813","resolution":{"observed_at":"2026-08-14T13:39:35.820898Z","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":"2026-08-14T13:39:35.831878Z","title":"M., et al","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":36,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.831878Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:24903a90b19ea8de1a49c6304bbf5d63f5d9bfdf38f93f6f26330c98b48805b8","observation_id":"ba189982-aa86-4fca-b735-e3e15b4cd254","resolution":{"observed_at":"2026-08-14T13:39:35.831878Z","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":"2026-08-14T13:39:35.843615Z","title":"E., Smail, I., Moran, S","venue":null,"work_id":null,"year":2011},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":37,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.843615Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:f1918d7ffd21c626a6187844faf9b70ce5909075f9d9971258e906484c1ee9b3","observation_id":"9fbc5edc-ceae-4fe2-89d3-fbec9dd2f3e1","resolution":{"observed_at":"2026-08-14T13:39:35.843615Z","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":"2026-08-14T13:39:35.853496Z","title":"2002, ApJS, 139, 369","venue":null,"work_id":null,"year":2002},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":38,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.853496Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:8d0a67f68d3871ffd3a29e3dafdfbed4559ecc1dcba09b1734e7f9e87b5566ca","observation_id":"8922d306-b8b2-4e6a-96d4-303f0d3c748e","resolution":{"observed_at":"2026-08-14T13:39:35.853496Z","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":"2026-08-14T13:39:35.859745Z","title":"C., Koekemoer, A","venue":null,"work_id":null,"year":2004},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":39,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.859745Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:e98b2e5d8d98defb7987fdf4e2a9fc3ea55717e9b3824437d70951c616a607c6","observation_id":"8cfca421-edf1-43c5-9c6a-c0a91bb9fc64","resolution":{"observed_at":"2026-08-14T13:39:35.859745Z","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":"2026-08-14T13:39:35.869016Z","title":"D., Lacy, M., et al","venue":null,"work_id":null,"year":2004},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":40,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.869016Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:46a521112cfc7b00e7fd7be9b2ee01c05a17a93fc74c4073eb2a2b04ed30deb1","observation_id":"8c04d58d-a006-4c53-9889-8383f2deded6","resolution":{"observed_at":"2026-08-14T13:39:35.869016Z","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":"2026-08-14T13:39:35.882234Z","title":"2017, ApJ, 847, 116","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":41,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.882234Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:f7553f129c1b8b7991b9b230b04bcaa68f65b7b0050f619e151dd93c9f584185","observation_id":"7541805c-4c89-4f43-9645-5fb91a3aef43","resolution":{"observed_at":"2026-08-14T13:39:35.882234Z","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":"2026-08-14T13:39:35.891471Z","title":"2015, ApJ, 806, 218","venue":null,"work_id":null,"year":2015},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":42,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.891471Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:8bb537e7784c8b61ffa21b08b41f00ab59009e048ae7706b571326714dca0197","observation_id":"332476cf-786b-4bab-aa95-56f5087e056f","resolution":{"observed_at":"2026-08-14T13:39:35.891471Z","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":"2026-08-14T13:39:35.902039Z","title":"2012, ApJ, 757, 51 —","venue":null,"work_id":null,"year":2012},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":43,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.902039Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:9da59796aaa8a7650184eaf963b106d11db65423f1d5cbeef207c5a25ec07bf3","observation_id":"e9aeda7f-1ca4-4fbe-ae8a-f8cefd43e50f","resolution":{"observed_at":"2026-08-14T13:39:35.902039Z","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":"2026-08-14T13:39:35.906557Z","title":"2018, ApJ, 861, 37 Gonz´ alez-Mart´ ın, O., Masegosa, J., Garc´ ıa-Bernete, I., et al","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":44,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.906557Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:07dbec8c0c65664cda8b25caa050dadaf52e2ec26a238877326bf2c2e6915040","observation_id":"4cae2664-6ea2-456c-ad8f-35f62572a011","resolution":{"observed_at":"2026-08-14T13:39:35.906557Z","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":"2026-08-14T13:39:35.911633Z","title":"D., Alexander, D","venue":null,"work_id":null,"year":2012},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":45,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.911633Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:5264a1bc7c5237f82102632fc74cced36f2da2da9370a2fa995c6b7607fd2032","observation_id":"2bf3cecc-9393-4893-9e21-08199049aa58","resolution":{"observed_at":"2026-08-14T13:39:35.911633Z","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":"2026-08-14T13:39:35.917411Z","title":"F., Schmidt, M., & Liebert, J","venue":null,"work_id":null,"year":1986},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":46,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.917411Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:508eb26dfe072c2fb11ffbedde04c21216e6d0e5c2124b7643627e93bcbda728","observation_id":"8474378f-f806-49df-9fa5-0036f399d617","resolution":{"observed_at":"2026-08-14T13:39:35.917411Z","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":"2026-08-14T13:39:35.923653Z","title":"2006, A&A, 458, 405","venue":null,"work_id":null,"year":2006},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":47,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.923653Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:ab170d7f94b22e8c8b20fec09f0145b34801f909f997fccf25218dd40845beab","observation_id":"507bb629-1c53-4eba-b556-f2154fb9fa5f","resolution":{"observed_at":"2026-08-14T13:39:35.923653Z","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":"2026-08-14T13:39:35.931880Z","title":"N., Hickox, R","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":48,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.931880Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:e65337fbada5a13eb8ec986e98259eac50c124621d54a07549c243f9a4af6c84","observation_id":"0ead5d59-6177-48e4-95d2-65983f0477f1","resolution":{"observed_at":"2026-08-14T13:39:35.931880Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:38.087132Z","title":"N., Shapley, A","venue":null,"work_id":"30041138-77da-4a94-b31f-e7bc685f08aa","year":2011},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":49,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.938133Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:ee2f91ef467b6f7e220fb57d8cc1bc7bfac91431f202bd87860273edbdcce09f","observation_id":"3e404f2d-ef1d-4984-9a03-cc79daed39db","resolution":{"observed_at":"2026-08-14T13:39:38.092149Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:38.069080Z","title":"2015, ApJ, 803, 110","venue":null,"work_id":"5cecd032-7d1e-48e0-abc8-6d376ee8737f","year":2015},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":50,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.948955Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:c7e5c5097e0d054b88a75f6723fb26912b98d90d87fba7d34e4051ff97e085f2","observation_id":"81a6b338-69c8-4b36-b711-3e1065481b93","resolution":{"observed_at":"2026-08-14T13:39:38.074631Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:35.955528Z","title":"M., & Best, P","venue":null,"work_id":null,"year":2014},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":51,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.955528Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:945533a7c6fec78aaa84470e410b4f175f33ab1eca3362e2ef03939f5ae257de","observation_id":"14db53b4-26c9-4f94-87ef-2151a9af690c","resolution":{"observed_at":"2026-08-14T13:39:35.955528Z","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":"2026-08-14T13:39:35.962168Z","title":"C., Jones, C., Forman, W","venue":null,"work_id":null,"year":2009},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":52,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.962168Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:602f2b080b61e337a8b2838f60d3d00dc742399d378e1d1f3a0939a86ee79ab0","observation_id":"796e239d-87d9-44af-a0c9-950761afc27a","resolution":{"observed_at":"2026-08-14T13:39:35.962168Z","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":"2026-08-14T13:39:35.972594Z","title":"A., Swinbank, A","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":53,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.972594Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:4c9bd2313ced16201cb00888668dbddb70881858c79f2201cee821087a318fa9","observation_id":"e5fef754-edf6-4dc1-918b-b410ef4fa221","resolution":{"observed_at":"2026-08-14T13:39:35.972594Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.998301Z","title":"A., Smail, I., Walter, F., et al","venue":null,"work_id":"4af1c4c4-9f0a-4ec8-b6f4-a0b3c6af3519","year":2019},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":54,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.979100Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:ee66a4588ccf6e4e981239aa43cec0ab65815d4bcedd18bdd1787a23b0a5c3cb","observation_id":"de03880d-04e5-480f-993b-59217d8bf5db","resolution":{"observed_at":"2026-08-14T13:39:38.007114Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.974097Z","title":"F., Hernquist, L., Cox, T","venue":null,"work_id":"369b468a-dd2e-4bf0-bc59-7dcb7da3f0e3","year":2008},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":55,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.986079Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:5ee3fd6592b23a0aca8bb4269c1f32fbe26323c7687414dc18f988f395562188","observation_id":"a536404a-95ef-499d-8a18-72e7dc1611ba","resolution":{"observed_at":"2026-08-14T13:39:37.985438Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:35.991615Z","title":"F., Richards, G","venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":56,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.991615Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:b0bfff4837b6fc89817ef07b4b72a3bb588dc4824e0e05dbcfa244c59d5802e9","observation_id":"07661478-7787-4f95-90d7-5ff82270862d","resolution":{"observed_at":"2026-08-14T13:39:35.991615Z","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":"2026-08-14T13:39:35.999966Z","title":"F., Somerville, R","venue":null,"work_id":null,"year":2006},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":57,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:35.999966Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:3df6b61dc9c686651ba41728d6b8cceaa36549129b25ff321447f0437c7051dd","observation_id":"d33bc842-3cbf-4b63-8e78-c92fe195d3a8","resolution":{"observed_at":"2026-08-14T13:39:35.999966Z","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":"2026-08-14T13:39:36.008969Z","title":"J., et al","venue":null,"work_id":null,"year":2006},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":58,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.008969Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:61e3f9b88e557d28377ad16574c7a007a340b726143bcee4bbb74e5fc58266dd","observation_id":"5d749963-1843-46df-8c68-1b53ad13c4d2","resolution":{"observed_at":"2026-08-14T13:39:36.008969Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.913218Z","title":"2016, AJ, 152, 218 16","venue":null,"work_id":"0aad9e51-a1ad-49fb-8c99-a8022b013933","year":2016},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":59,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.017789Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:a350de2eb309a4dc8ad5fd4e7b6329c5027839f3f6e8ff3dbc84d74af161e08a","observation_id":"cc0582e1-5c5c-4f66-a59b-d4c9b2baed3d","resolution":{"observed_at":"2026-08-14T13:39:37.918615Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.893848Z","title":"J., Page, M","venue":null,"work_id":"e3654390-46eb-4f2f-92c5-28872bd6ac19","year":2019},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":60,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.025236Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:02f8e5a917cd6d44c61f1c51027c929b62a5ce9c0ee95a586ac3da380281b40e","observation_id":"31fcdb32-301d-4bd8-85c3-cd0a4846d77d","resolution":{"observed_at":"2026-08-14T13:39:37.901785Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:36.031193Z","title":"P., Richards, G","venue":null,"work_id":null,"year":2005},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":61,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.031193Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:c645b3cf9c5f2eb4565d3a7743ff55ae4a6a93b7d21eaf38f7d4a0ddd47f808e","observation_id":"b310ba2c-163f-4a71-80e6-2b48dff90e0f","resolution":{"observed_at":"2026-08-14T13:39:36.031193Z","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":"2026-08-14T13:39:36.037026Z","title":"2014, ApJS, 213, 12","venue":null,"work_id":null,"year":2014},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":62,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.037026Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:c8c51d75c0c23d2d0f193f5df184bece4452e4f94bde7f37eb2a434e79e9a530","observation_id":"09d36ac7-da05-4852-8946-d0d2bbf8b35c","resolution":{"observed_at":"2026-08-14T13:39:36.037026Z","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":"2026-08-14T13:39:36.042889Z","title":"2015, ApJ, 814, 9","venue":null,"work_id":null,"year":2015},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":63,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.042889Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:02c8667e2eb4811ae4aad67d6278df10dff4635d16e07ed1e0086f3a59880bc2","observation_id":"1397410f-15f1-474c-8faf-c7620f4bdd37","resolution":{"observed_at":"2026-08-14T13:39:36.042889Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1905.06961","last_updated":"2019-05-16T18:00:08Z","snapshot_observed_at":"2026-08-14T16:31:02.077648Z","submitted_at":"2019-05-16T18:00:08Z","title":"CO Emission in Infrared-Selected Active Galactic Nuclei","version":1},"cited_work":{"arxiv_id":"1905.06961","doi":null,"metadata_source":"pith","pith_arxiv_id":"1905.06961","snapshot_observed_at":"2026-08-14T13:39:36.633661Z","title":"CO Emission in Infrared-Selected Active Galactic Nuclei","venue":"astro-ph.GA","work_id":"e37e39c1-624b-46d7-922c-a8bff81e7c1f","year":2019},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":64,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.053180Z"},"links":{"cited_paper":"/paper/1905.06961","citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:d1c3050eb4a6a20bd659ec5829c92eea2af3da7b8b4525bf49863e2172b61239","observation_id":"77967e48-8077-4c57-98e2-bd6109346c7b","resolution":{"observed_at":"2026-08-14T13:39:36.639221Z","resolver_source":"local_arxiv","status":"metadata_mismatch"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.839403Z","title":"M., et al","venue":null,"work_id":"cf055602-ae54-493d-879a-6fff44d73842","year":2012},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":65,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.058588Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:bacd1ab9b1a17bf3dcc68a7f7c7b64164dba7d98ceb9163e239622688681dcf0","observation_id":"04201c7d-a8f0-411e-9e4f-129b49aa2ccb","resolution":{"observed_at":"2026-08-14T13:39:37.847172Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.817249Z","title":"2013, ApJ, 763, 123","venue":null,"work_id":"2b808961-bcb4-4997-847e-f48fc1f96625","year":2013},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":66,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.070256Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:d655283c0459a62f6b2bba689243a98a71c3d7d2db7be4b403dd2c6e248b71bc","observation_id":"b4e2c86d-1501-43ce-9d3e-423aec7121f2","resolution":{"observed_at":"2026-08-14T13:39:37.825537Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:36.080085Z","title":"2017, ApJ, 849, 111","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":67,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.080085Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:2f6e817b95fbf582010c13420241240a103c5bdbb6fb87418e7bad452394517a","observation_id":"61d8d665-f33c-41c1-8e6b-5226ba8c5a3b","resolution":{"observed_at":"2026-08-14T13:39:36.080085Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.775386Z","title":"D., Brightman, M., Nandra, K., et al","venue":null,"work_id":"113071f8-3439-4b89-96e4-8b7720da6d2b","year":2015},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":68,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.091384Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:132dc5a2bc883bded431cbd6c308ff15f32bbdf0507d63db716899d5ea00413d","observation_id":"ae499d3c-6fc1-4bcc-9b84-b6723a27d15e","resolution":{"observed_at":"2026-08-14T13:39:37.781928Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:36.100151Z","title":"J., Sajina, A., et al","venue":null,"work_id":null,"year":2004},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":69,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.100151Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:c3723cc7213a7636d3d3df835d8cf88bfd760f21e0ccffe0cc9f1a69de0cfb0e","observation_id":"c4001669-6fc5-4c2c-89c3-2fbd7089b31d","resolution":{"observed_at":"2026-08-14T13:39:36.100151Z","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":"2026-08-14T13:39:36.108405Z","title":"M., Cales, S., Moran, E","venue":null,"work_id":null,"year":2015},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":70,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.108405Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:b3152bfc3de1d3279b8b5487d1b79d975378aa06bd8f8d071ba23a9b742b51b5","observation_id":"b56fe190-f2bb-44ac-b5a2-00af3378423c","resolution":{"observed_at":"2026-08-14T13:39:36.108405Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.732267Z","title":"M., Urry, C","venue":null,"work_id":"62814810-529b-4b3a-a94c-aeaaee547f30","year":2016},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":71,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.113517Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:cdc71bf39fbf3a53dd092ed3ac8c878843fe2cc2cb5d3fcc2d3c0fca2add44f8","observation_id":"13dc3669-62ab-4ae8-9727-c6789427ae89","resolution":{"observed_at":"2026-08-14T13:39:37.740183Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.714701Z","title":"M., Glikman, E., Brusa, M., et al","venue":null,"work_id":"6f3d501c-e2e7-481f-9e3d-1adc1f5af63f","year":2017},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":72,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.122424Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:d6bbb5ea3860074f8ae3a9721c4312c960585116d930709877956b4189df8ff4","observation_id":"6775870d-0536-42df-abfd-bd944cec09f9","resolution":{"observed_at":"2026-08-14T13:39:37.720490Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:36.137948Z","title":"J., Almaini, O., et al","venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":73,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.137948Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:9bbffcfbb406d72922061b400cc54d12c91de4050269b076b1e966a4b097f236","observation_id":"dd803f8a-bc3f-4079-a382-95333a52d617","resolution":{"observed_at":"2026-08-14T13:39:36.137948Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.672339Z","title":"B., Casey, C","venue":null,"work_id":"f5259c0c-99c5-43ee-87b3-e2a601524e89","year":2015},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":74,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.143752Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:e9cd836d79933e88f72d8d7b6943a8b00e5ea9af9a7a9c26e923169d583d115d","observation_id":"3af59dbf-96e4-49f7-b7f8-fa233aba2358","resolution":{"observed_at":"2026-08-14T13:39:37.679484Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:36.150019Z","title":"D., et al","venue":null,"work_id":null,"year":2012},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":75,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.150019Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:d3e4ea23f807fcf6c7c56e23a157ce011532e07bfd6751858b0105ce3dc3f809","observation_id":"378767c5-2e91-42d4-9c75-a1ae0317a0b2","resolution":{"observed_at":"2026-08-14T13:39:36.150019Z","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":"2026-08-14T13:39:36.156883Z","title":null,"venue":null,"work_id":null,"year":2004},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":76,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.156883Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:90a823f07057478593905c1e497aaa6ef180abd4e0e67c6c3acd6b5e0f75b999","observation_id":"7f7be6c3-eac3-423f-85a9-0f6dd14d19b0","resolution":{"observed_at":"2026-08-14T13:39:36.156883Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.615059Z","title":null,"venue":null,"work_id":"e37e9a3a-a07d-425a-a79d-1cce14ef880a","year":2017},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":77,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.161963Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:27af56c4825891e3f1b494dd29a78022c9f17f1422cb97867834e616131c548e","observation_id":"99d7a189-3357-4b53-ace8-f3ed46947f81","resolution":{"observed_at":"2026-08-14T13:39:37.621520Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.595002Z","title":"2017, MNRAS, 471, 3226","venue":null,"work_id":"a90c810b-f41c-4e80-810c-bb6ba7f4a9f7","year":2017},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":78,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.172861Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:f50c85671b8fb64f64d528990ed00215803383fdf2092f2023509f76d2c90580","observation_id":"bdc0df3a-8230-44e6-830d-7dd7b84e13c4","resolution":{"observed_at":"2026-08-14T13:39:37.600457Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:36.180273Z","title":"2016, ApJ, 817, 34","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":79,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.180273Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:5433c023dacff3506474bf90f2d98e4cc736b5e4263505825b7497bb0bc268d1","observation_id":"1a3a7f63-8c89-4b3c-baa0-ce10b3974530","resolution":{"observed_at":"2026-08-14T13:39:36.180273Z","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":"2026-08-14T13:39:36.185547Z","title":"J., et al","venue":null,"work_id":null,"year":2012},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":80,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.185547Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:6359cad14caec39d65babe020679320912bd912e2af73b96075b9d201124cf51","observation_id":"3085e94a-b393-4ccf-b018-1737b4b41ebc","resolution":{"observed_at":"2026-08-14T13:39:36.185547Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.543559Z","title":"C., Elvis, M., Wilkes, B","venue":null,"work_id":"d738292b-ecba-488b-a0fb-0339b755a40b","year":1989},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":81,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.192506Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:1d1e84e24d7266e6f39fc4cf0e46f167f9e8d8a820846b741c3a698d43eea841","observation_id":"ce067e9e-4989-40fd-ad31-367a5c492896","resolution":{"observed_at":"2026-08-14T13:39:37.550574Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:36.197442Z","title":"G., Banerji, M., Gonzalez, E., et al","venue":null,"work_id":null,"year":2013},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":82,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.197442Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:3bcc8d287b5ca4cf4941142edb9ab02dc537345b7850d3ca014d8a6f2851de84","observation_id":"90af3f9b-867b-491a-b728-561813ff0372","resolution":{"observed_at":"2026-08-14T13:39:36.197442Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.502150Z","title":"2009, ApJ, 705, 298","venue":null,"work_id":"adc75932-19a6-4e6e-87fc-1df797002185","year":2009},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":83,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.203801Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:4cfac56a77aeea4cea10c7c879a503ca4cfbc064a702d05f0a63c8d98124176c","observation_id":"e0cd959f-236c-4bcb-bbc6-daa532678ff1","resolution":{"observed_at":"2026-08-14T13:39:37.507249Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:36.208932Z","title":"R., Alexander, D","venue":null,"work_id":null,"year":2011},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":84,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.208932Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:99dc95dc680cc5877b4e6a1436eb05274f151472a021970ffb4a5f1d0dec876d","observation_id":"0095eb11-35e1-4c78-a2bb-0e5746d37d91","resolution":{"observed_at":"2026-08-14T13:39:36.208932Z","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":"2026-08-14T13:39:36.214334Z","title":"J., Condon, J","venue":null,"work_id":null,"year":2011},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":85,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.214334Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:f9c8441598d65609e9e33797adde54c62bb5598af9ebde8c9b4663b143d80674","observation_id":"83922636-3e62-41d4-a8e3-14c72d2366ca","resolution":{"observed_at":"2026-08-14T13:39:36.214334Z","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":"2026-08-14T13:39:36.224685Z","title":null,"venue":null,"work_id":null,"year":2005},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":86,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.224685Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:5d5f7a80a0e1801ae1bb8160ba4112212a1d0c066ce7aceefb227cbc6b2c26ca","observation_id":"b5916e11-b9be-462d-ab12-ea73288f9bf7","resolution":{"observed_at":"2026-08-14T13:39:36.224685Z","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":"2026-08-14T13:39:36.232276Z","title":"2007, ApJ, 666, 806","venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":87,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.232276Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:18226c48f04b0905f4d2cbbecc5234d3f6571b4302c02c1de706532739b49c56","observation_id":"05182a8c-580e-481e-9511-57ac1a153367","resolution":{"observed_at":"2026-08-14T13:39:36.232276Z","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":"2026-08-14T13:39:36.240440Z","title":"G., Weiner, B","venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":88,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.240440Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:60263e5d476b6ce6a9eaad94ba7f6a3f57952af87a73203a661c217900915c64","observation_id":"903a8dc6-1d2f-489b-acda-a6b050e10ec0","resolution":{"observed_at":"2026-08-14T13:39:36.240440Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.373865Z","title":"2003, A&A, 398, 857","venue":null,"work_id":"32880aa1-38f8-4e9b-9c7f-55a16d5117b6","year":2003},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":89,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.250125Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:1c01b046acb47915701bc33d0987fb5f994fc5258ae9f4f6ed61e38be90add86","observation_id":"85768ee3-0b51-42f6-9b2f-aeea58cdd88c","resolution":{"observed_at":"2026-08-14T13:39:37.381180Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:36.259094Z","title":"J., Stevens, J","venue":null,"work_id":null,"year":2004},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":90,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.259094Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:dd66ead37ae3dc33a486d6d69faf2754c6c7edb05b7a8eb6c0c89f93194b9788","observation_id":"be1e0c1d-08b7-4750-bd20-b524fb6b85b6","resolution":{"observed_at":"2026-08-14T13:39:36.259094Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.329817Z","title":"V., Mehrtens, N., et al","venue":null,"work_id":"f5e6095a-a75a-406a-8314-93038e654998","year":2016},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":91,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.266473Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:10a3f461f03ad8ac72038dae41c0ddf8c62886fea3315cfe91135ebaf191a7eb","observation_id":"2cc7a0eb-5250-4c4d-a2ad-a45380bb7bd5","resolution":{"observed_at":"2026-08-14T13:39:37.338893Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:36.274614Z","title":"T., Brusa, M., et al","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":92,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.274614Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:c3fa38fa1e9558aff1e424d527ff550e952eddc2b2dede516adc999b46542ea8","observation_id":"0d092310-ebec-4629-a31a-0dac76644309","resolution":{"observed_at":"2026-08-14T13:39:36.274614Z","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":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.289724Z","title":"O., Armus, L., Howell, J., et al","venue":null,"work_id":"1802d9e7-cb83-4a2e-8c48-822d6b4af2fc","year":2011},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":93,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.280345Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:8871f23fb91f30c7f65c70dc941908fa9d822f842e3408721d6f1ed7c84d8ffc","observation_id":"fa528801-4a3c-4634-ba4f-f1a57cd3e6db","resolution":{"observed_at":"2026-08-14T13:39:37.297387Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.267633Z","title":"2012, MNRAS, 421, 3464","venue":null,"work_id":"539eee23-e95b-4b15-b693-7d27e579eef8","year":2012},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":94,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.286628Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:861711617e5a072849e2386f39ba947f25a1f836bb680ad72eb4412936d108fb","observation_id":"6e248d93-2d16-438a-8ef2-72b18203564c","resolution":{"observed_at":"2026-08-14T13:39:37.274345Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.244732Z","title":"M., et al","venue":null,"work_id":"7fc3297a-b265-4f0c-a702-3b5b3b717d3e","year":2008},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":95,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.291885Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:dcafbfe9596d5457ddc7119a5078caafef81d814a35f8a8353168806ce49b402","observation_id":"888364b4-5ef5-4def-b16c-067b3247c4f4","resolution":{"observed_at":"2026-08-14T13:39:37.251770Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+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":"2026-08-14T13:39:36.296501Z","title":"T., Lacy, M., Storrie-Lombardi, L","venue":null,"work_id":null,"year":2006},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":96,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.296501Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:fef3100a14b6c98ee2f9fb0d47690c5bae81d37ddb89fd2aaa652a866413f564","observation_id":"7f3d20d7-429c-4d50-8d58-0fec38651ffb","resolution":{"observed_at":"2026-08-14T13:39:36.296501Z","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":"2026-08-14T13:39:36.301568Z","title":"J., Santini, P., Lutz, D., et al","venue":null,"work_id":null,"year":2012},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":97,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.301568Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:e1a87c66a3b6bc4175959f60c1e1eaab9af4e990cda2101da6186780e6de9894","observation_id":"8fa5f488-4764-45a1-a651-d7f450a1ce38","resolution":{"observed_at":"2026-08-14T13:39:36.301568Z","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":"2026-08-14T13:39:36.305860Z","title":"S., Rieke, G","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":98,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.305860Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:95f498701317f4ff9237fc45074a637658b37d4aeff659ad623e95881ef5c115","observation_id":"0553d130-07e9-4173-a300-02737aca012d","resolution":{"observed_at":"2026-08-14T13:39:36.305860Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1904.04507","last_updated":"2019-08-04T04:30:27Z","snapshot_observed_at":"2026-08-14T16:49:30.015918Z","submitted_at":"2019-04-09T07:57:32Z","title":"ALMA 200-parsec Resolution Imaging of Smooth Cold Dusty Disks in Typical $z \\sim 3$ Star-Forming Galaxies","version":3},"cited_work":{"arxiv_id":"1904.04507","doi":null,"metadata_source":"pith","pith_arxiv_id":"1904.04507","snapshot_observed_at":"2026-08-14T13:39:36.606745Z","title":"ALMA 200-parsec Resolution Imaging of Smooth Cold Dusty Disks in Typical $z \\sim 3$ Star-Forming Galaxies","venue":"astro-ph.GA","work_id":"2c272f18-3052-4166-97f5-e09439b668a0","year":2019},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":99,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.311517Z"},"links":{"cited_paper":"/paper/1904.04507","citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:f323b77f71a37b76594f4484daac831e4119603c0146a31549761ddadbe8d2cc","observation_id":"e3169366-a1de-42b1-a9cc-7651eec5c87a","resolution":{"observed_at":"2026-08-14T13:39:36.613276Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:39:37.169414Z","title":"2012, ApJ, 757, 13 Salom´ e, Q., Salom´ e, P., & Combes, F","venue":null,"work_id":"23a8de52-d5c3-4452-a202-996be52cc4ea","year":2012},"citing_paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars","version":2},"reference_index":100,"source":"pdf_text","source_observed_at":"2026-08-14T13:39:36.318999Z"},"links":{"citing_paper":"/paper/1908.04795"},"observation_digest":"sha256:4d64bd844a8cb1c8ac10a1ae27bd3c0124c75f7d7ba012ac1b73e1e94e0dfbc8","observation_id":"b4c9953f-66f6-4d10-b57f-2e1f517d20bb","resolution":{"observed_at":"2026-08-14T13:39:37.174919Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"1908.04795","last_updated":"2020-07-06T14:45:13Z","latest_version":2,"primary_category":"astro-ph.GA","snapshot_observed_at":"2026-08-14T13:30:37.187651Z","submitted_at":"2019-08-13T18:00:12Z","title":"The Accretion History of AGN: A Newly Defined Population of Cold Quasars"},"reference_resolution":{"displayed":100,"state_counts":{"malformed_identifier":0,"metadata_mismatch":1,"parse_uncertain":0,"unresolved":77,"verified_exact":1,"verified_fuzzy":21},"total_outbound_references":128},"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":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"thesis":"As of 21 August 2026, this Paper Citation Record lists 100 of 128 outbound references and 1 inbound Pith citation observation for arXiv:1908.04795."}