{"as_of":"2026-08-21T15:37:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:a195973d665220e95d4b62253619bd50c0aa32a8af20d089808669382077849d","coverage":[{"denominator":56,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":56,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-10T19:35:34.360357Z","state":"measured"},{"denominator":56,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":56,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-21T06:32:19.484+00:00","state":"measured"},{"denominator":0,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"cited_works","source_observed_at":null,"state":"measured"}],"external_citation_measurements":[],"inbound":[],"links":{"evidence":"/evidence","html":"/paper/2501.09974/citation-record","integrity":"/paper/2501.09974/integrity","json":"/paper/2501.09974/citation-record.json","paper":"/paper/2501.09974"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:35.298701Z","title":"2018, Nature Astronomy, 2, 443","venue":null,"work_id":"d29fc8dc-984d-4afe-8c05-d7d4f6c5406c","year":2018},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.079022Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:f2ec6faa9443eea2e9a1bd60c7ff497310d633e82308a15069fc0430c02f618c","observation_id":"15c118fd-3d1a-4ac8-858c-14c8fc598786","resolution":{"observed_at":"2026-08-10T19:35:35.302842Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:35.276917Z","title":null,"venue":null,"work_id":"718c556c-efec-4714-aabb-91975007ddf8","year":2015},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.087532Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:0409e02e25bd386b6ad591638540cc42209454cb31c6c472383771778a78fa8c","observation_id":"78992786-e272-4006-8141-8eeee58a7e20","resolution":{"observed_at":"2026-08-10T19:35:35.283179Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:35.256654Z","title":"S., et al","venue":null,"work_id":"ecb774fb-fd6a-489d-8cf1-7ed7c2ade479","year":2010},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.096913Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:54ad6b70932fbd09425877a9421756b80717bd52adf569bfb7a49d3846fd87e8","observation_id":"9234fa8a-b390-46b9-b3a2-9691d2bf3e32","resolution":{"observed_at":"2026-08-10T19:35:35.261304Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:35.238330Z","title":"2022, MNRAS, 517, 3495","venue":null,"work_id":"e5fd556e-7c86-4bf4-9b98-44eb53b2f7e7","year":2022},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.102525Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:5159a042519b3cd1057570f8449a89b31df5e69a2c1f384c9653694531e06818","observation_id":"66e29d7c-fcf0-4a14-b22f-bce5b90e10df","resolution":{"observed_at":"2026-08-10T19:35:35.244312Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:35.215934Z","title":"2023, MNRAS, 526, 5765","venue":null,"work_id":"4bbd452a-4b66-4877-a666-f95f8efba5c4","year":2023},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.107780Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:56eaa4b2d80f95b3c8b075d2d03ad518650570083dfd3ef1bf28ee464697f599","observation_id":"b536d1c0-56a8-4d68-8e63-30d34c3cb98c","resolution":{"observed_at":"2026-08-10T19:35:35.223883Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:35.196697Z","title":"2024, MNRAS, 527, 2599","venue":null,"work_id":"15ba73e3-e597-4194-9c27-1d985d8c7d65","year":2024},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.114647Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:76cd7a4827611edab783be53205ad557da6b90b8d958cd48173bfd23d01fdbfd","observation_id":"84385a5c-1302-4f5f-8f81-7a790048c160","resolution":{"observed_at":"2026-08-10T19:35:35.202933Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:35.160019Z","title":"& Zampieri, L","venue":null,"work_id":"68981d36-da48-4b59-8ab2-437da7bce118","year":2018},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.120124Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:242ff79d92ac58f21e4ffd673e15d8fd058abbdd5b3f6d36f24491e80845c0b7","observation_id":"0a2b6107-1ed6-43ad-8dcf-cdd2f893a1aa","resolution":{"observed_at":"2026-08-10T19:35:35.167229Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.125290Z","title":"A., Walton, D","venue":null,"work_id":null,"year":2014},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.125290Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:54e687bdc7125bb4e75b7db802b19042276d9113945951b6d73b089ea64ff4f9","observation_id":"9203291c-af08-4a37-876b-c3751baa9d5d","resolution":{"observed_at":"2026-08-10T19:35:34.125290Z","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":"2026-08-10T19:35:34.130368Z","title":"2012, MNRAS, 427, 127","venue":null,"work_id":null,"year":2012},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.130368Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:bd2eca7da3e14feea2257d4cf3e3059341b7452d32a33a978236824046222938","observation_id":"ff081255-3500-49dd-a671-856c8f990458","resolution":{"observed_at":"2026-08-10T19:35:34.130368Z","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":"2026-08-10T19:35:35.111153Z","title":"2020, ApJ, 895, 127","venue":null,"work_id":"636e928b-ec20-45a0-9423-96ef6f00cb4e","year":2020},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.135222Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:bf060fd7f93f8d44e4dbf0c6b7fe22455055813fd781c279c13c2239d10e940c","observation_id":"718e685d-9169-4558-96dc-e45e4ee3b0cb","resolution":{"observed_at":"2026-08-10T19:35:35.122331Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:35.088685Z","title":"A., Bachetti, M., et al","venue":null,"work_id":"98ce09fe-2f20-4024-b787-4fc48952202e","year":2019},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.139871Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:b71b176a99751ab239dd6260f67d137ba2d6b681c264669f22ab0c80138c6b34","observation_id":"12f638fe-cca1-4de9-9da3-6afdd3145a92","resolution":{"observed_at":"2026-08-10T19:35:35.094895Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.144591Z","title":"A., Fürst, F., et al","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.144591Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:8441e05f1380ac3c71da0a811b3ccf012ad1a04536c891ed502f0195aeaaf218","observation_id":"e9a9ed43-01be-46d6-b40f-dc33d40092a5","resolution":{"observed_at":"2026-08-10T19:35:34.144591Z","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":"2026-08-10T19:35:35.047880Z","title":null,"venue":null,"work_id":"bc517c15-caf6-4999-a00c-2fc4c293901f","year":2017},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.149263Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:83669f2a510822bf276d2e1cd65f479e506bc245e81c7a08c7b8cc884c724047","observation_id":"6e2a2435-1cf7-4616-8405-b7b63e69aae4","resolution":{"observed_at":"2026-08-10T19:35:35.054515Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:35.030742Z","title":"2022, AJ, 164, 32","venue":null,"work_id":"f7585dc5-685f-444b-9840-85533f0888b7","year":2022},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.153560Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:d47fe05bcf86e1e0a71b469c866fe2a5406e6c35392d510db615ccc304d3551e","observation_id":"022a9df9-cc80-40ed-a50f-38eb2bcb9455","resolution":{"observed_at":"2026-08-10T19:35:35.036614Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.157354Z","title":"2018, MNRAS, 476, L45","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.157354Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:d6ff34ea1675052e1588078a9036bce91125c7cd375a9e90158b3ef0ea36d52c","observation_id":"a7e280e7-4e09-4eea-8083-df05ea573944","resolution":{"observed_at":"2026-08-10T19:35:34.157354Z","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":"2026-08-10T19:35:34.993581Z","title":"2020, ApJ, 890, 150","venue":null,"work_id":"689e129d-996e-4046-82ad-8f15f48a41aa","year":2020},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.161498Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:c7b6749fcbd911d157724adaf1976904a4891b71b268750cf0225826b2a19d9f","observation_id":"63866a50-842b-45e9-9c0c-0c16c1907ee0","resolution":{"observed_at":"2026-08-10T19:35:34.999193Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.165962Z","title":"2023, Nature, 621, 711","venue":null,"work_id":null,"year":2023},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":17,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.165962Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:bfadeee0a86303e81df37522c0e2c8400cd541415a5e845a07d623eb316c973f","observation_id":"7a1bdf74-a237-4201-95ff-1389391f7cfd","resolution":{"observed_at":"2026-08-10T19:35:34.165962Z","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":"2026-08-10T19:35:34.963033Z","title":"2013, ApJ, 767, 3 de Vaucouleurs, G., de Vaucouleurs, A., Corwin, Herold G., J., et al","venue":null,"work_id":"7ef87d8a-83f6-4327-9aa7-56e406bba4a8","year":2013},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.170675Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:60991eb82fdf950d66b785bbdbe6c6c117105f764c55dcac344e6660c76958bc","observation_id":"98503ed6-a7c9-4b12-ac19-f6ce33b162e5","resolution":{"observed_at":"2026-08-10T19:35:34.967422Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.946506Z","title":"P., Berghea, C","venue":null,"work_id":"2ea0e8a4-d736-4b33-bbb7-f042eaa01358","year":2016},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.175822Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:d5aae00ea22acc15d2789d2811d16fbdb8c47c99bde6ada4bf47aa54892f06bf","observation_id":"ca36972c-d19d-4ce4-b468-acf45dedf298","resolution":{"observed_at":"2026-08-10T19:35:34.953153Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.180381Z","title":null,"venue":null,"work_id":null,"year":1983},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.180381Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:67c0f4b84d09d822359076a5e7e457869144076a2683f878bc57f05b86283e61","observation_id":"393f3253-6070-4fda-956d-80fdf8dfcf2a","resolution":{"observed_at":"2026-08-10T19:35:34.180381Z","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":"2026-08-10T19:35:34.186038Z","title":"A., Beardmore, A","venue":null,"work_id":null,"year":2009},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.186038Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:9c9e5f676c5a204076d430ff7bc5605184f4d743ba35f1d3303912702d341257","observation_id":"8a052c1c-c51b-40e6-af21-693f206c4879","resolution":{"observed_at":"2026-08-10T19:35:34.186038Z","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":"2026-08-10T19:35:34.192331Z","title":"A., Beardmore, A","venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.192331Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:171c7c512179b4e5b977ef798c35d0980c94a301639c2847229e3a2a1a6beced","observation_id":"bb959482-adbe-492b-be73-d28f01113b24","resolution":{"observed_at":"2026-08-10T19:35:34.192331Z","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":"2026-08-10T19:35:34.898095Z","title":"2015, Na- ture Physics, 11, 551","venue":null,"work_id":"52353409-5087-4fa6-8f94-d0cbfa3e1549","year":2015},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":23,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.197804Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:91fb5f25258c324fd54db96ae1d8382491bd8e06c6e05bdc498ef629176ba379","observation_id":"88ddf0ea-b096-41fe-b1bf-2d72952c3c58","resolution":{"observed_at":"2026-08-10T19:35:34.903389Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.203557Z","title":"N., Atapin, K","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.203557Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:d21f217a1f29a062dc6565dd9916e34ec19bd6c2b0cb63d5bdf5e27612c26c36","observation_id":"3e109660-f003-4eb8-b36c-6191a4218f0a","resolution":{"observed_at":"2026-08-10T19:35:34.203557Z","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":"2026-08-10T19:35:34.866180Z","title":"G., Torres, M","venue":null,"work_id":"bb113b44-75be-41af-af54-b488aefa19d7","year":2014},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.208320Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:b8bbd1ff54baf04a3d94e64249c2625e0b4ce14968a2c28f09d6121474e3897a","observation_id":"e406455a-96f8-4c27-973d-1f5f854be50d","resolution":{"observed_at":"2026-08-10T19:35:34.872370Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.214867Z","title":null,"venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.214867Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:977859f8aeb0133b53383840d3bc6f529b59bf70931a8bd8414c0418c4ff32ec","observation_id":"ade88966-8cf3-409a-9508-0c013ba1a9d6","resolution":{"observed_at":"2026-08-10T19:35:34.214867Z","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":"2026-08-10T19:35:34.219263Z","title":"2023, New A Rev., 96, 101672","venue":null,"work_id":null,"year":2023},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.219263Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:0b9a1d489b263e7871590cd952c509b8b6beeeb267f736fab9c650c3aa70991f","observation_id":"30d60886-5f6c-48c1-94ab-4c1c488b7070","resolution":{"observed_at":"2026-08-10T19:35:34.219263Z","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":"2026-08-10T19:35:34.225239Z","title":null,"venue":null,"work_id":null,"year":2009},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.225239Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:6290cdc435498d748ed888a3e375f1c9417ec825a6174bd025e7aa938dfb2ae3","observation_id":"07d7a53f-d777-442b-a5bc-9b576f310616","resolution":{"observed_at":"2026-08-10T19:35:34.225239Z","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":"2026-08-10T19:35:34.230301Z","title":"R., Davies, M","venue":null,"work_id":null,"year":2001},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":29,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.230301Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:bb76f3fdbc7443f1f7c62f7b87d90030f92a66c004413fb89a152974de8af54e","observation_id":"7da9ae88-ddbb-4010-9501-fc979fc60471","resolution":{"observed_at":"2026-08-10T19:35:34.230301Z","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":"2026-08-10T19:35:34.813875Z","title":"2022, ApJ, 933, L3","venue":null,"work_id":"48586ed5-0e94-46db-a7ef-9e2661c1e018","year":2022},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":30,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.235594Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:ccf41b0ba01e01becfd2d49151a0dc3cd13f4f7b4b254fbc09534d327272a128","observation_id":"29d7b031-38e5-4d21-baff-3058246f6491","resolution":{"observed_at":"2026-08-10T19:35:34.818745Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.797668Z","title":null,"venue":null,"work_id":"f887a414-6420-45df-90aa-9fec747bb9d2","year":2012},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":31,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.240034Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:74f773950332147d6e8c129483b287c72a95f7f9f615d00c51eb8b72ccce4b17","observation_id":"801d7899-adfe-4fa3-a6c4-e13258215490","resolution":{"observed_at":"2026-08-10T19:35:34.802653Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.781406Z","title":"M., Heida, M., Walton, D","venue":null,"work_id":"91c6e1ce-fb59-415a-9687-364aff54fe78","year":2019},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":32,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.244305Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:67ce430a64af61d74a872f5f076a18e93fd0ab9384bfa1b7af6bd11eb8811d73","observation_id":"d55ae924-e3ec-4d46-8d45-0a0249ed7927","resolution":{"observed_at":"2026-08-10T19:35:34.786770Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.758446Z","title":"2003, in Astronomical Society of the Pacific Conference Series, V ol","venue":null,"work_id":"8bd4827a-1378-4b52-93c8-cefde54159e8","year":2003},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":33,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.250416Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:0a106e6440c49b807615ee118af7281f63342a483bdf20d4b17425f2082f0cb8","observation_id":"e76b7d7d-b1bc-433d-9797-9fee42e679d9","resolution":{"observed_at":"2026-08-10T19:35:34.763137Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.742893Z","title":"N., & McClintock, J","venue":null,"work_id":"a8f40fc4-303d-47f6-be27-699b0ecfcbe4","year":2009},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":34,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.255133Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:b2222bbb156c097fed26a0f7eb08b38ed3d7f8433acf25ab30db96498c63d283","observation_id":"5bd85c91-0b37-40f9-9347-14baacb1e82f","resolution":{"observed_at":"2026-08-10T19:35:34.747347Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.259175Z","title":null,"venue":null,"work_id":null,"year":1976},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":35,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.259175Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:72cb6327de390d3c45dd175b07e395825c1619fddc6c574e881e9e879727380c","observation_id":"ce0c28a1-29e2-4cb8-9e92-f2a02434cce8","resolution":{"observed_at":"2026-08-10T19:35:34.259175Z","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":"2026-08-10T19:35:34.717841Z","title":null,"venue":null,"work_id":"447d349b-bb2e-4365-a165-c33692f521b3","year":2023},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":36,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.263446Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:b6be9e6c7cfe1184f6ddd08827acfbff62142e771714249d1e5230dd83860322","observation_id":"6ba7bf56-19f9-4fcc-935d-723a323ab822","resolution":{"observed_at":"2026-08-10T19:35:34.722822Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.704152Z","title":"D., Fener, M., et al","venue":null,"work_id":"f0c448c9-b45c-40f6-bb1a-f8f9e9b5e523","year":1982},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":37,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.268279Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:a4946947601bd49779b33dea6d5178e7081f9e3004eabbd230c1db720cbae829","observation_id":"0b94749d-33e5-40fd-8f17-80641b1e8b8e","resolution":{"observed_at":"2026-08-10T19:35:34.708546Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.687247Z","title":"J., Walton, D","venue":null,"work_id":"20270da1-0447-4179-9c40-5b96fef4331d","year":2015},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":38,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.272494Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:6b4fae22db1b196d7c4c72be8cbb72b8e565e5bd7e5b7e38e09e02143b192fa6","observation_id":"081e713b-d709-4003-88c3-25130af61b55","resolution":{"observed_at":"2026-08-10T19:35:34.692499Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.665425Z","title":null,"venue":null,"work_id":"27767c3d-9097-4911-b26e-cf31e92287b7","year":2013},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":39,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.277223Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:975e9e64790db8bcdf98951e111a0f684a2ac3a9aff13e59a131071932136322","observation_id":"884de76a-c1f4-4776-8970-9adaf440426b","resolution":{"observed_at":"2026-08-10T19:35:34.671144Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2302.00006","last_updated":"2023-01-31T19:00:00Z","snapshot_observed_at":"2026-08-16T15:58:43.885818Z","submitted_at":"2023-01-31T19:00:00Z","title":"Ultra-luminous X-ray sources: extreme accretion and feedback","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2302.00006","snapshot_observed_at":"2026-08-10T19:35:34.281415Z","title":"& Walton, D","venue":null,"work_id":null,"year":2023},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":40,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.281415Z"},"links":{"cited_paper":"/paper/2302.00006","citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:748b4e4510cddfa42ee28bf2cd32c166351a70267a9c114c4b92c2a477987d87","observation_id":"a3161d98-5d96-4018-90cc-f5fa18544844","resolution":{"observed_at":"2026-08-10T19:35:34.281415Z","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":"2026-08-10T19:35:34.649442Z","title":null,"venue":null,"work_id":"dc6d0eb3-4bb5-40a4-87d6-d07e4b20d7d2","year":2007},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":41,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.287030Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:701d4e884a573f25001dfbf4431bf1e2ed64f90498086b2869358c9fc9fc9148","observation_id":"8fd71336-c502-4952-a827-cd111497a1cf","resolution":{"observed_at":"2026-08-10T19:35:34.653749Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.291480Z","title":null,"venue":null,"work_id":null,"year":1982},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":42,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.291480Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:75ed1e853438d6c840126a217c8c183bb8df1331858092c0a7ff913ce45cd36f","observation_id":"22bf33cb-f36e-4344-ac28-2e6d327cc2c6","resolution":{"observed_at":"2026-08-10T19:35:34.291480Z","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":"2026-08-10T19:35:34.619834Z","title":"1982, Bulletin d’Information du Centre de Donnees Stellaires, 23, 2","venue":null,"work_id":"737b4f16-19cd-4154-aad0-557529633732","year":1982},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":43,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.295813Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:35a65c98c4c2ccfd853c4248c2596c2a828d439c1e597b7923ae7fea98f1c75b","observation_id":"381fc7b5-4e61-4482-a4e5-268dfae3e0b4","resolution":{"observed_at":"2026-08-10T19:35:34.625879Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.602455Z","title":"D., Winkler, P","venue":null,"work_id":"399c90d5-a629-43d8-91ab-20b9c9045dcb","year":2012},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":44,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.301755Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:03252e817d9c9a9824315f3571e53643a6318aa208bdc26e6a9ceb521deba060","observation_id":"cd65fb83-c94c-42c0-8905-2ce3afd61047","resolution":{"observed_at":"2026-08-10T19:35:34.609126Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.305893Z","title":null,"venue":null,"work_id":null,"year":1987},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":45,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.305893Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:ae05f83acbedcb80c9fde03aa4d494ca6d8caeff5fb6aea3ce551ddd8d6cfb9d","observation_id":"02b5b3d2-c5bb-401d-83a1-e0773124c203","resolution":{"observed_at":"2026-08-10T19:35:34.305893Z","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":"2026-08-10T19:35:34.311003Z","title":"T., Morris, S","venue":null,"work_id":null,"year":1991},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":46,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.311003Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:76d37ab53be06c8225c9b64930bba3596467b8d2b1ca9c2cc68fa5fea4e98957","observation_id":"76a6fc3f-04d6-4857-b39c-bf0c09feb410","resolution":{"observed_at":"2026-08-10T19:35:34.311003Z","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":"2026-08-10T19:35:34.557629Z","title":"& Kuriliene, G","venue":null,"work_id":"d1a8f294-71ba-44ab-986b-2b551537d197","year":1981},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":47,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.315693Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:edeea3ef61cac66dd112f91488783cfdcefc4f6094960b6dc37c241005b87714","observation_id":"bcce064b-b29e-443b-8186-d6487ab97c6e","resolution":{"observed_at":"2026-08-10T19:35:34.562496Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.542946Z","title":"D., Done, C., & Roberts, T","venue":null,"work_id":"d5aa3305-b5c6-4d67-8713-5d7127f01da2","year":2014},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":48,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.321829Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:0fdcb67687d8bf6c114190147a7eece7f4cf27fa8461d3bf2079cba8b8ef67ae","observation_id":"82d66563-d219-44c7-9464-6a07691e7733","resolution":{"observed_at":"2026-08-10T19:35:34.547982Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.529917Z","title":"D., Roberts, T","venue":null,"work_id":"776e159f-4824-462c-8ba3-7aa3bf3fc6d8","year":2012},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":49,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.326667Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:2b5925e0a05dd7dd89c63bdadfc196f245e891af7ea02adb982e4c93093a3f97","observation_id":"fa879574-5228-492f-9c27-ec743e7b8baf","resolution":{"observed_at":"2026-08-10T19:35:34.534601Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.512707Z","title":"2011, ApJ, 737, 81","venue":null,"work_id":"caeb7d5d-831c-4354-9dc5-0959693ff103","year":2011},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":50,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.331211Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:051265f500e16f8e59477140fff126e76fae4de4b68aa8142be59125355ef596","observation_id":"da271319-bfe3-4b87-bf0d-f2fffb19112c","resolution":{"observed_at":"2026-08-10T19:35:34.517910Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.495812Z","title":null,"venue":null,"work_id":"20976a5b-b242-4660-a83c-8bc16a2f1945","year":2020},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":51,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.336268Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:f834282f789538194685b90ce5bb4cdd873b6aad721e84437a2977dc4be42e59","observation_id":"3ae3f111-94e0-4403-9bb7-7d01ea6beac6","resolution":{"observed_at":"2026-08-10T19:35:34.502265Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.341470Z","title":"B., Courtois, H","venue":null,"work_id":null,"year":2013},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":52,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.341470Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:5a14b6a9a322329b900f411d8cc8af36afd83e093ab09f370cdf0b99387b25b5","observation_id":"33c917a1-b7ff-458f-8cf4-51adb798e445","resolution":{"observed_at":"2026-08-10T19:35:34.341470Z","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":"2026-08-10T19:35:34.470649Z","title":"2018, ApJ, 854, 176","venue":null,"work_id":"433351ce-3c53-45e9-92e1-31516aeac2ff","year":2018},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":53,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.346738Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:650e7d2c02b31cfd5cf821d57b2e9a5b9ffa51c0de819bd0cd53431346ee83c1","observation_id":"0fdae1a9-6db1-41ee-a9db-49e5763636eb","resolution":{"observed_at":"2026-08-10T19:35:34.475994Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.452210Z","title":"J., Bachetti, M., Fürst, F., et al","venue":null,"work_id":"cd77188b-fa98-4d16-b202-80976cc3f0ca","year":2018},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":54,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.351128Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:687d85f2935698a519d7e4369c7b2a33519b54b922983e9950b734d6e0a30be0","observation_id":"f9cffe7b-037a-4f5b-9ad8-c7b780307ce6","resolution":{"observed_at":"2026-08-10T19:35:34.457683Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.434757Z","title":"2003, MNRAS, 341, 1020","venue":null,"work_id":"c6eeb9df-49a6-4a4a-a55f-07088860e1d7","year":2003},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":55,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.355604Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:5a6ab80fe89f42404d81416d3d702e3527c520fc81f93424b7ca8cf1aa469ce4","observation_id":"bdb72fea-3c63-4ace-871f-511af5dc123c","resolution":{"observed_at":"2026-08-10T19:35:34.439116Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T19:35:34.417004Z","title":"& Feng, H","venue":null,"work_id":"b8f5c3f5-5cf9-4934-ba05-fb2352be95f2","year":2019},"citing_paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559","version":1},"reference_index":56,"source":"pdf_text","source_observed_at":"2026-08-10T19:35:34.360357Z"},"links":{"citing_paper":"/paper/2501.09974"},"observation_digest":"sha256:54e0de8ac3658a3d26e87158db89f3504b55bd1adda23fe400d3f408efaf0e01","observation_id":"a78f5922-2311-444e-81b3-29b7f2661d4d","resolution":{"observed_at":"2026-08-10T19:35:34.422870Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"2501.09974","last_updated":"2025-01-17T06:31:30Z","latest_version":1,"primary_category":"astro-ph.HE","snapshot_observed_at":"2026-08-17T08:18:36.474073Z","submitted_at":"2025-01-17T06:31:30Z","title":"Unveiling the nature of donor stars of ULXs in NGC 1559"},"reference_resolution":{"displayed":56,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":26,"verified_exact":0,"verified_fuzzy":30},"total_outbound_references":56},"refusal":"A citation records a reference. It does not transfer a finding from one paper to another.","schema":"pith.paper-citation-record.v1","standing_sources":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"thesis":"As of 21 August 2026, this Paper Citation Record lists 56 of 56 outbound references and 0 inbound Pith citation observations for arXiv:2501.09974."}