{"as_of":"2026-08-06T02:38:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:58b61c087a53fe24dce1906636874fe23f41a27dce275da1c2db4da2d2d8567c","coverage":[{"denominator":65,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":65,"source":"paper_references, paper_reference_links","source_observed_at":"2026-07-12T03:39:47.026432Z","state":"measured"},{"denominator":65,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":65,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-05T06:32:48.257954+00:00","state":"measured"},{"denominator":0,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"cited_works","source_observed_at":null,"state":"measured"}],"external_citation_measurements":[],"inbound":[],"links":{"evidence":"/evidence","html":"/paper/2607.03268/citation-record","integrity":"/paper/2607.03268/integrity","json":"/paper/2607.03268/citation-record.json","paper":"/paper/2607.03268"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1038/35104634","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Schlapbach, A","venue":"Nature","work_id":"6298e7c5-6a48-4f64-8296-ea5f225be7f8","year":2001},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:9d37e3f970d7fee2f7ddf2fec67f16c65f0a06b8a332dd9d91dd5e11d552a175","observation_id":"e52b3886-9bfc-42b7-a602-e817716f018c","resolution":{"observed_at":"2026-07-12T03:48:29.357254Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:12.053214+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:12.053214+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2023.158618","doi":"10.1016/j.apsusc.2023.158618","metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Hruška, J","venue":"Applied Surface Science","work_id":"6bee4907-b3c1-4628-88a6-5d59bff08a0a","year":2024},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:6e68cae008f0b006f5fd7c86dd9142309220669c369572870ba26f056502184b","observation_id":"9eec9fb8-6d3a-4e07-8be7-26c3abad5927","resolution":{"observed_at":"2026-07-12T03:48:29.347105Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:12.352323+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:12.352323+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/b978-0-12-812036-1.00007-x","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Dagdougui, R","venue":"Elsevier eBooks","work_id":"844adb58-2af2-46d4-a6ed-e849a10124d6","year":2018},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:2839cfcee0b136bd578da308ef24308741576b947c75deee6cdd6f1adebd1d47","observation_id":"4731514a-1ef1-4b15-8552-2799b99edfca","resolution":{"observed_at":"2026-07-12T03:48:29.397436Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:12.669521+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:12.669521+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1021/cr800339k","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Korotcenkov, S","venue":"Chemical Reviews","work_id":"551669a5-28bb-4cfd-a703-978c00a328c8","year":2009},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:dd76b231d6f0a697f4cfba45cf2af083dd73ad4ccfc7f977bafd0d411ec84175","observation_id":"c08180b9-d3ce-4b59-bf77-8707f0f8ceae","resolution":{"observed_at":"2026-07-12T03:48:29.337079Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:13.036049+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:13.036049+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":null,"venue":null,"work_id":null,"year":1999},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:a5739040bca32244a33cfce49b463dbf710b92e8fe4c76f4b0f07b96b3b9a57e","observation_id":"7c2abed7-568c-4a37-ad44-59504e708688","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"malformed_identifier"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1038/s41598-023-28204-z","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Scientific Reports","work_id":"fb64d773-b60a-498f-ba0c-405f235a594d","year":2023},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:0b622104afe17f957c325c55768d30ca4c631adf3f7a20afad2d845802a14e33","observation_id":"c7d5efad-bfd6-433a-b712-8d6ba12c948a","resolution":{"observed_at":"2026-07-12T03:48:29.341252Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:13.325354+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:13.325354+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2021.130488","doi":"10.1016/j.snb.2021.130488","metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Sensors and Actuators B Chemical","work_id":"671e46e2-6796-4699-ba11-168a065ca6d5","year":2021},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:878ff69cb1f0f581b6215ae8d089a7624f129f21b1379cf1c3cc8e470f946c67","observation_id":"5b52faa2-ca2a-4e65-98d3-627ef4c96688","resolution":{"observed_at":"2026-07-12T03:48:29.353359Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:13.676322+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:13.676322+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.ijhydene.2024.07.253","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Gautam, Y","venue":"International Journal of Hydrogen Energy","work_id":"4ca99443-6f55-4928-b462-60a4db8d39a3","year":2024},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:ac3219757849ba06c4207f920ca61991079f276745592d5eb8ade6f7ca23cba1","observation_id":"25308b2d-12d3-4f13-a73e-e6a861a34c0a","resolution":{"observed_at":"2026-07-12T03:48:29.361202Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:14.121827+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:14.121827+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1088/1361-6501/aa7443","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Measurement Science and Technology","work_id":"c1f888b2-ef72-461a-ae11-c41fc89c3e77","year":2017},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:0e922866d9c04295905552af70193c56ec98b2a102b29335991c8af0cb3d1ea9","observation_id":"e8419395-1369-4434-be35-bd2f17057084","resolution":{"observed_at":"2026-07-12T03:48:29.369245Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:14.415967+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:14.415967+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2024.160693","doi":"10.1016/j.apsusc.2024.160693","metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Applied Surface Science","work_id":"359c00c1-c4f3-407b-846b-065f8e9b9d15","year":2024},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:7ca05f071316e7e715430cc0a0eaa6399eec660fc9d3a9660d8fbc5079ce6f99","observation_id":"01f53377-4e59-48da-889c-b09f4aa846ae","resolution":{"observed_at":"2026-07-12T03:48:29.379167Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:14.725947+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:14.725947+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.ijhydene.2018.09.051","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"International Journal of Hydrogen Energy","work_id":"c496bb55-f1fd-4cfb-bf4c-8a8efdd83663","year":2018},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:7dfa89e02b4d3f579817088fe25681184068c01d194a758dde7a70da6b048b62","observation_id":"4992254a-72cf-4058-98a2-3128d6e493b5","resolution":{"observed_at":"2026-07-12T03:48:29.318183Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:15.096638+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:15.096638+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":null,"venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:a2685c30a566bb4e4eb6b0eed1b6069ac3fc692f568440d2a05168bacab68b88","observation_id":"e9f5dd5a-a307-4387-b095-646739541966","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"malformed_identifier"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.3390/nano11123456","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Kumar, S","venue":"Nanomaterials","work_id":"35ba9bd1-9a46-4824-afcc-7f17010f6987","year":2021},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:4600f717bc6bc9e96f593949f09ecfc89982cbac625b14dce9fb1c1859c7bbd7","observation_id":"7e178207-2547-4cba-82ed-01f25bbdcb0d","resolution":{"observed_at":"2026-07-12T03:48:29.408541Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:15.389835+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:15.389835+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2020.147274","doi":"10.1016/j.apsusc.2020.147274","metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Kimura, K","venue":"Applied Surface Science","work_id":"172fe667-be9b-48b4-b92e-155240947ba4","year":2020},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:0b299528c7e8feb3d4ec58e6c373fa065bedcb8623054ee446c8f0d3f626048a","observation_id":"14073c93-faaa-4bbe-94cf-53e5aa323f95","resolution":{"observed_at":"2026-07-12T03:48:29.305226Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:15.625773+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:15.625773+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.ijhydene.2017.06.066","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"International Journal of Hydrogen Energy","work_id":"a7fcdb4b-12cc-43b7-abe3-7980e8e443ac","year":2017},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:71065757c125109b3aef1d78f2227649af3bf8b05b3c0e445106fbfbbbc4527b","observation_id":"2318f53b-0612-4b48-b194-2e47709ea35e","resolution":{"observed_at":"2026-07-12T03:48:29.309788Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:15.955092+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:15.955092+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.ceramint.2016.02.038","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Ceramics International","work_id":"96197f31-f231-438e-bc2d-3c609bd9133e","year":2016},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:7339e425928603b9faebdbdf940eb6aecbf82c5dc57d38e055098627d9f59ebc","observation_id":"755cc5f8-806f-452c-9c38-41f8f0794efc","resolution":{"observed_at":"2026-07-12T03:48:29.355321Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:16.281525+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:16.281525+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.ceramint.2017.11.116","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Supriya, V","venue":"Ceramics International","work_id":"c66f0404-eede-4f54-83e8-73055a791f2e","year":2018},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:6803c13666547d91e9fdae10c531f2e18a89146b589dc3430a2276a3330f0f8b","observation_id":"7bfd360c-c409-4269-b2c9-9a350511445b","resolution":{"observed_at":"2026-07-12T03:48:29.365134Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:16.598139+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:16.598139+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1021/jp311847j","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"The Journal of Physical Chemistry C","work_id":"fdd60a23-17d2-4a53-8dde-360ad59567f0","year":2013},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:1aa9d63a2bd4dac01b0fd4e61a594cf480969d07d450468c3574aefd92c9705e","observation_id":"9a1f3b01-c6b0-4c30-b04a-b7cf39c88526","resolution":{"observed_at":"2026-07-12T03:48:29.314084Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:16.855695+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:16.855695+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/s0169-4332(02)00533-0","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Abou-Helal, W","venue":"Applied Surface Science","work_id":"8b1f4345-f829-43b2-a005-7a88081fe8d6","year":2002},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:4c728e9ad0170c9e370b21fa5659360ad3d36098cc0e8520448f8f768df43721","observation_id":"9566061f-be02-4f76-93eb-cce0cb49b99b","resolution":{"observed_at":"2026-07-12T03:48:29.328946Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:17.121587+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:17.121587+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1039/d0ma00880j","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Materials Advances","work_id":"62419fbc-07da-4680-abc1-46157b2f0977","year":2021},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:70457bb45e50068803e5636e0f3d7a1379f0b3e404b94dd86b10e2a6cbeedb04","observation_id":"d0662221-99f5-467c-b788-fa05b5a3dfc5","resolution":{"observed_at":"2026-07-12T03:48:29.385079Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:17.530663+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:17.530663+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1155/s1110662x03000278","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Bessekhouad, D","venue":"International Journal of Photoenergy","work_id":"f4b2961d-6813-4df3-b529-4a4dccfa8f2c","year":2003},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:3946c04be9ee0c6f0d4aa216dfeaf1191c9b64ffcab735dbefcf641fdc74cc41","observation_id":"f3872d83-15dd-428a-b48d-e849584d3607","resolution":{"observed_at":"2026-07-12T03:48:29.284090Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:17.804826+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:17.804826+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":null,"venue":null,"work_id":null,"year":1997},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:3bea2f6ec509856f19e8b11bafe956ac17de39b03bbf7a93e27030d361fcef45","observation_id":"8f05163e-2509-4ecd-ad8f-ecbf6443b2b3","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.4028/www.scientific.net/msf","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Elsener, A","venue":"Materials science forum","work_id":"5e37776a-9850-48fa-bc0a-f9ffae8011c7","year":1991},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:231a73d831632b93311c836519dbdfe774ac205592a2261a86ac23731a6b0dce","observation_id":"158daa9c-56fb-4b17-9083-4f3c7414862c","resolution":{"observed_at":"2026-07-12T03:48:29.288537Z","resolver_source":"doi_truncated","status":"malformed_identifier"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":"Haviar, B","venue":null,"work_id":null,"year":2025},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:3ed91186772737a80ba3f64a9a688d949a5d1039e9cd666ce16b2d6af955a779","observation_id":"0b538c91-2170-48ae-b310-384b8bae5dd5","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.3390/ma13225101","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Kumar, S","venue":"Materials","work_id":"11a9b970-7dd8-4db3-bd5c-b2f3220e1b0c","year":2020},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:89ecdf5d5f0f120654843d6e2b4b0b85cebc4f5603ac245b2c07d2a0a1e2dc71","observation_id":"10ce3a84-3908-47e9-8baf-0f77224f37b8","resolution":{"observed_at":"2026-07-12T03:48:29.279805Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:18.429944+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:18.429944+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2025.100894","doi":"10.1016/j.apsadv.2025.100894","metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Kumar, A","venue":"Applied Surface Science Advances","work_id":"0cc0d072-6bad-41fb-9caa-f0e33f18ec23","year":2025},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:a8d0261608bb678ac39bc80d1837d19d7cbe78dc8816ca8c4e6ce52f2dfe20f2","observation_id":"915210f5-c3fa-4631-a2db-5e699da3f399","resolution":{"observed_at":"2026-07-12T03:48:29.294577Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:18.751324+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:18.751324+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.3390/s23010029","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Ciftyurek, Z","venue":"Sensors","work_id":"620e9787-470e-416a-ad6e-099c87fcda9c","year":2023},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":29,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:4bbec51e4bf3543da6769fad55ade3ab9d66f4101cd6b11eac30ea616ce0f806","observation_id":"932e6cbe-7066-4c9c-b26d-4f6b77cedf6d","resolution":{"observed_at":"2026-07-12T03:48:29.332937Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:19.055544+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:19.055544+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":null,"venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":30,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:625fec655c399adbe082091b02c69462ef31b039e928bafbfcf7262425811730","observation_id":"ea7f4490-d4c9-4892-b23a-a20732d9bb0c","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1155/2009/875704","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Shimanoe, N","venue":"Journal of Sensors","work_id":"eca6a7e4-89ec-4255-b4a2-56a3486c7073","year":2009},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":31,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:8a5ca369a904810dbe3cb11f78a3f747e1bb73590d652134c306535af9993426","observation_id":"a12c8685-4187-4bc8-978a-8034d934af8c","resolution":{"observed_at":"2026-07-12T03:48:29.261054Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:19.288187+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:19.288187+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":null,"venue":null,"work_id":null,"year":2026},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":32,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:dec9f242792342edcb581d7138d3d628f682de96c96e2e1bda2464df581008c2","observation_id":"55c34a39-2117-409a-bd83-85c1eabe36c5","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"malformed_identifier"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":"Kumar, J","venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":33,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:5b23006b1a85c5fc41ec0ffb6e83d96559d760963527e373dff2a7f36e3cf55a","observation_id":"c84d1229-0e95-42da-b40f-6fd6d54285ce","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":"Haviar, J","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":34,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:bf0fe8439c3d3c581558a0b27e52285dfb42f3a3e2a72c50c2d947dde084b440","observation_id":"e03c9472-1642-4240-8668-0dc56c263ac9","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"malformed_identifier"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.apsusc.2010.04.096","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Karthik, S","venue":"Applied Surface Science","work_id":"e0fc8fa0-b669-4938-b3ad-9c64fa569b2f","year":2010},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":35,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:ffaf28b706a68d751dc727fd32186071e588033e8a92b4285f1d41c43ec517a0","observation_id":"031b663a-0d84-4c42-9afe-74b21b8f7554","resolution":{"observed_at":"2026-07-12T03:48:29.362814Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:19.775467+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:19.775467+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2021.113420","doi":"10.1016/j.jphotochem.2021.113420","metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Kajita, K","venue":"Journal of Photochemistry and Photobiology A Chemistry","work_id":"e9716f41-a598-4b13-a410-71da546948b6","year":2021},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":36,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:0bbc230cf45de80970d8d45c4cb900ad46a2f932e428b790bdad9739047a89dc","observation_id":"da9784ae-5a56-4aec-9f3e-ef810d5d676e","resolution":{"observed_at":"2026-07-12T03:48:29.244960Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:20.087886+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:20.087886+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.apsusc.2016.09.126","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Applied Surface Science","work_id":"8dcc3b6c-6d17-45c8-a01d-d662468024eb","year":2017},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":37,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:27fed395050d9489ded3aafc2d86a068f22f754a83e4d67e7650344fbb540504","observation_id":"189abbb9-25b6-4d92-ab71-416a31c3fe5c","resolution":{"observed_at":"2026-07-12T03:48:29.249847Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:20.4038+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:20.4038+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":null,"venue":null,"work_id":null,"year":2025},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":38,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:986a084ea9a0ecf12d53091e55c39253d2dc955e2f1e7c8b6d5711a76debffbe","observation_id":"aded784e-abd7-43ff-8c3c-336e85aecab9","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.matdes.2017.01.044","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Materials & Design","work_id":"20db73bd-5b58-4958-86b6-aaf3654794a5","year":2017},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":39,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:6d8306f7ebb48b8b426116a46473e20b0d91c83d0f460ab6543557ad89f64ed3","observation_id":"91ec5c9f-63e2-4f6b-9985-f3b050b13bd6","resolution":{"observed_at":"2026-07-12T03:48:29.265826Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:21.024935+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:21.024935+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2020.100828","doi":"10.1016/j.nme.2020.100828","metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Kajita, N","venue":"Nuclear Materials and Energy","work_id":"098dab13-26fe-4c9e-a72e-14ca5e5e320e","year":2020},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":40,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:bb6d5bec12eedc7300d0c63aa3b38bf9739f7effabfcd2b80ce7a69a2345c670","observation_id":"0f84ae80-cd64-4d73-a577-c57cd37dd4fb","resolution":{"observed_at":"2026-07-12T03:48:29.275067Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:21.314576+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:21.314576+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2026.156746","doi":"10.1016/j.jnucmat.2026.156746","metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Koyanagi, T","venue":"Journal of Nuclear Materials","work_id":"ec7e2299-0872-42d0-ab65-9fe2ed2bc855","year":2026},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":41,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:2bb41f525898e0784e56a8a4974a8fe04767b75872857b7971143dc36cd8ff0a","observation_id":"a5ab05c1-5bca-46f0-8d3e-3c21698ba5da","resolution":{"observed_at":"2026-07-12T03:48:29.324644Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:21.606403+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:21.606403+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1063/1.3536635","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Journal of Applied Physics","work_id":"48893278-762b-4359-8250-0e35bf4b8114","year":2011},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":42,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:3ade4fe39b58d07419f730dd083b38b794ccc7e8f730ddd94b5d75ea30b10670","observation_id":"7c754036-5003-4032-9edd-5790e8783ce0","resolution":{"observed_at":"2026-07-12T03:48:29.327741Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:21.858615+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:21.858615+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/s0257-8972(01)01553-5","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Zeman, S","venue":"Surface and Coatings Technology","work_id":"614c1aec-45eb-4ac0-a38b-9c362edf97f5","year":2002},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":43,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:a1465f4f5fc4f2035172752579ec0c504a19eb36d3eed11852667de245428ca5","observation_id":"a7eafb35-837c-4ac1-9987-6d405c1c5bc6","resolution":{"observed_at":"2026-07-12T03:48:29.323723Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:22.08967+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:22.08967+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":"De Gryse, D","venue":null,"work_id":null,"year":2001},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":44,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:cd6cd4a55dcd8711d683763aac1bdb09241b99536ae52d49a2a89997a2a680f1","observation_id":"e1deab6c-20df-4d8b-806b-d46ba7185a67","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":null,"venue":null,"work_id":null,"year":1999},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":45,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:9e8db9547f023e0c45168d9939023be0c2b036b5bf426424b2106d45c2e16156","observation_id":"ddb9b62a-c507-4e3d-aced-b91381d2be93","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"malformed_identifier"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/b978-0-12-803224-4.00101-1","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Elsevier eBooks","work_id":"a6541a25-ff13-44f0-a0c0-b8ace3948938","year":2017},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":46,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:b0bd9eff924970b3ea457c6bb6eb90837a304614103077d9d770d6bee7462efe","observation_id":"2f361d11-96c9-4728-9273-b701de8b7b8b","resolution":{"observed_at":"2026-07-12T03:48:29.308483Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:22.326936+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:22.326936+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1039/c3ja50065a","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Miyahara, T","venue":"Journal of Analytical Atomic Spectrometry","work_id":"9957ca67-006d-417c-9500-9f144c8efa1f","year":2014},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":47,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:1dd8b2bbdf110c16688561a8a6b5b42a6c8938880e2af5c3848115698f929e89","observation_id":"08b7d3f4-438f-48df-8869-fdccd3e20ae3","resolution":{"observed_at":"2026-07-12T03:48:29.463944Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:22.648696+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:22.648696+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":"Corde, E","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":48,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:89882f76e2b661c504cfb33ef6907710ee75c9ef8e2a625aec5e25ced6dd54e4","observation_id":"41c3b3de-9ff9-492d-b033-e3cf23014d50","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","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":"2021.127808","doi":"10.1016/j.surfcoat.2021.127808","metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Ibrahim, F","venue":"Surface and Coatings Technology","work_id":"0ac980d0-f764-4a4f-9f69-fd085105f1d0","year":2021},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":49,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:ec7d4cb2a0f12ca7a02a7b202820e1886db5c61bef6f3c85c4e1af6ee9c23841","observation_id":"68067374-60aa-488e-a8ca-2614ef072406","resolution":{"observed_at":"2026-07-12T03:48:29.315204Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:23.288173+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:23.288173+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":"Caballero-Hernández, V","venue":null,"work_id":null,"year":2015},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":50,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:e879e698758c3a585196d3ccdba320f996b50cca2a40c49339854555d06779a0","observation_id":"59cf2d83-cd14-431e-acc3-53792109641d","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"malformed_identifier"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.tsf.2012.06.032","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Depla, W","venue":"Thin Solid Films","work_id":"1e23df62-bdc0-4634-a091-c53d7e60c854","year":2012},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":51,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:65b04b74416d18359f464f27a052aae4b5c351b3ba9aba1e013e6f90b405e854","observation_id":"65285ef5-d701-4ab4-9e95-1fd0ceb33968","resolution":{"observed_at":"2026-07-12T03:48:29.296651Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:23.617682+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:23.617682+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1088/0953-8984/18/7/019","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Houska, O","venue":"Journal of Physics Condensed Matter","work_id":"a0d7376c-445b-4be8-8458-9ae36bad7ab5","year":2006},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":52,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:95f9f2536bf36939529fea41095fe0e219bfaa4be1abf39efb2280d4024c513a","observation_id":"7305dd11-50ca-4065-b3e0-356039b0eaa6","resolution":{"observed_at":"2026-07-12T03:48:29.453412Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:23.841847+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:23.841847+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1038/s41598-025-06889-8","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Fernández, M","venue":"Scientific Reports","work_id":"8b5b5077-644a-47a9-aefb-881af4b4c3a9","year":2025},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":53,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:5681b1af706f4f497f4f213e3ba1932423768debc4caf3ee12220170bc8523ba","observation_id":"c4d60f02-b2e8-41f5-8980-8b08b64bb5be","resolution":{"observed_at":"2026-07-12T03:48:29.283912Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:24.192507+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:24.192507+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/s0022-3115(96)00465-5","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Ishiyama, M","venue":"Journal of Nuclear Materials","work_id":"67ac4319-dce3-4676-98e9-bc95a8702a56","year":1996},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":54,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:4fcd75c8997ea80cc449c2d33c629218b4fd9901e3151d58e0d41635f79c7f9b","observation_id":"56a3ed82-bc8b-4712-856b-c37408b555e4","resolution":{"observed_at":"2026-07-12T03:48:29.279433Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:24.446752+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:24.446752+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.apsusc.2014.03.022","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Kajita, D","venue":"Applied Surface Science","work_id":"9abb758d-b72c-4520-a2e7-ba9ea3568110","year":2014},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":55,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:466352c932002dc7170732824ce75600bf1b607785398cef409ef80e63ff4166","observation_id":"c6722358-34fb-43c6-a038-a509bbba7a18","resolution":{"observed_at":"2026-07-12T03:48:29.288339Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:24.690334+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:24.690334+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.surfcoat.2016.07.004","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Houška, Molecular dynamics study of the growth of crystalline ZrO2, Surface and Coatings Technology 304 (2016) 23–30.doi:10.1016/j.surfcoat.2016.07.004","venue":"Surface and Coatings Technology","work_id":"45a01ce4-3e3b-412e-b257-915493922f0f","year":2016},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":56,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:fcc15b0966dc7bba0ba9abae9bcfb280b0181a8c953093ae3cb706199014fc1a","observation_id":"ecb77577-e8a6-453b-8d39-93aa082a287a","resolution":{"observed_at":"2026-07-12T03:48:29.292505Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:25.015281+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:25.015281+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.ijhydene.2019.06.052","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"International Journal of Hydrogen Energy","work_id":"0c5ddfec-0bff-42db-980f-d781085b4e33","year":2019},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":57,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:badf0d723201bd95a8aaa84b84df14029420d86b020313b5f4a2ca4f408012e8","observation_id":"9ff2b360-f9c7-4fbd-aab4-72ef9bf0e805","resolution":{"observed_at":"2026-07-12T03:48:29.262759Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:25.339933+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:25.339933+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1002/pssr.201409562","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Enachi, O","venue":"physica status solidi (RRL) - Rapid Research Letters","work_id":"38ed5053-9852-415a-b910-88f46fe8961f","year":2015},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":58,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:1ab488248ec8932bc749caf3b9350c0a868b957c253b51df57cc674868171da1","observation_id":"22f35370-a64c-4f57-86d9-efa0cf5f37ed","resolution":{"observed_at":"2026-07-12T03:48:29.257402Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:25.588544+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:25.588544+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1186/s11671-017-1875-5","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Zakrzewska, M","venue":"Nanoscale Research Letters","work_id":"df620c48-224c-4a08-bf5f-11da3e1a01ef","year":2017},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":59,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:3b34343ce490bfb9c5a74d94695d65d2cecf4c89d4162bee129af902f33e3566","observation_id":"df5b7a6d-211c-4f1c-96a6-ffe47a4de604","resolution":{"observed_at":"2026-07-12T03:48:29.267650Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:25.919771+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:25.919771+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:39:47.026432Z","title":null,"venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":60,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:34f3d73c79037387c183ff604b7062c98121901fccb7f233d1d959d15654f117","observation_id":"c76f3e65-40eb-4dd2-ac7a-273fa85cd978","resolution":{"observed_at":"2026-07-12T03:39:47.026432Z","resolver_source":null,"status":"malformed_identifier"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.snb.2018.12.063","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Sensors and Actuators B Chemical","work_id":"853dba2d-f277-45df-8d9d-05c210454d10","year":2018},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":61,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:74c59221373ac46de57a9927f55dff95ad1d1775116e0b42e3fff781e0864ce9","observation_id":"d939d25e-5027-4a51-b6f5-52dc8ee2875d","resolution":{"observed_at":"2026-07-12T03:48:29.241895Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:26.150344+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:26.150344+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2019.111758","doi":"10.1016/j.sna.2019.111758","metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Jyothilal, G","venue":"Sensors and Actuators A Physical","work_id":"8144fcfa-ee7f-4ba5-bcd5-a576b75e16a1","year":2019},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":62,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:c1adf8a24c6dce7da106d180bfad802e7651a5e863fb6e8c149b4066886b27c5","observation_id":"34e87a0f-eb90-4e7c-bf7d-e2f7ccfdc6ae","resolution":{"observed_at":"2026-07-12T03:48:29.252773Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:26.446033+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:26.446033+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.snb.2012.09.077","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Horprathum, K","venue":"Sensors and Actuators B Chemical","work_id":"d8dd08eb-3b38-4cbc-ab01-3852671497cd","year":2013},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":63,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:78a530f392447826ae067f0375713f640006aedb8702b0c769818e0ffdb7c558","observation_id":"458083fa-6f37-4d04-ac9d-733dbfe03272","resolution":{"observed_at":"2026-07-12T03:48:29.274286Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:26.67848+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:26.67848+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.snb.2012.06","metadata_source":"doi_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-07-12T03:48:29.299451Z","title":null,"venue":null,"work_id":"302602ba-6d73-43d6-a094-909212320113","year":2012},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":64,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:54825a57400f8d51520c38f304b1c21efdd702005b3346b29d2deb68a2364516","observation_id":"b44ba75e-5fb8-41a6-82bc-789cf99f4e39","resolution":{"observed_at":"2026-07-12T03:48:29.300866Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:26.928819+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:26.928819+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/j.snb.2013.03.091","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Wisitsoorat, M","venue":"Sensors and Actuators B Chemical","work_id":"8ec34966-5b11-4e4e-8885-86d420833061","year":2013},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":65,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:c746722fd50cf3e4f9f022368d4140fff6817893fd0f0ecfd55703d264684c5d","observation_id":"087d0420-fb25-45d4-8442-fa4d76be326c","resolution":{"observed_at":"2026-07-12T03:48:29.319461Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:27.158304+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:27.158304+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2004.842061","doi":"10.1109/tnano.2004.842061","metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":"Jensen, M","venue":"IEEE Transactions on Nanotechnology","work_id":"2fd6a042-50ec-4ef5-b658-306259165012","year":2005},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":66,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:f1d7c516d568e79988c88147ffe1e148db85108624d9557a20fa69b4832ab552","observation_id":"8fcceffe-f663-41a8-9ce8-f7aa7851ad5e","resolution":{"observed_at":"2026-07-12T03:48:29.334418Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:27.437941+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:27.437941+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1116/1.2764082","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T02:28:24.338817Z","title":null,"venue":"Journal of Vacuum Science & Technology A Vacuum Surfaces and Films","work_id":"af1c2362-f03e-41a4-9101-f7be31a9e481","year":2007},"citing_paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering","version":1},"reference_index":67,"source":"pdf_text","source_observed_at":"2026-07-12T03:39:47.026432Z"},"links":{"citing_paper":"/paper/2607.03268"},"observation_digest":"sha256:2ffc24df20098e75225d18ddc0d4f386a02bff51b900a7cb879aad50e471da84","observation_id":"99932102-8dcc-4cbe-b503-53058bffe952","resolution":{"observed_at":"2026-07-12T03:48:29.347690Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-05T06:32:48.257954+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-07-13T18:50:27.762111+00:00","source":"crossref_status_cache"},{"observed_at":"2026-07-13T18:50:27.762111+00:00","source":"openalex_status_cache"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"2607.03268","last_updated":"2026-07-03T12:37:05Z","latest_version":1,"primary_category":"cond-mat.mtrl-sci","snapshot_observed_at":"2026-08-04T06:53:51.604836Z","submitted_at":"2026-07-03T12:37:05Z","title":"Enhanced hydrogen response of copper-doped TiO$_2$ synthesised by helium-assisted magnetron sputtering"},"reference_resolution":{"displayed":65,"state_counts":{"malformed_identifier":8,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":7,"verified_exact":50,"verified_fuzzy":0},"total_outbound_references":65},"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":"2026-08-05T06:32:48.257954+00:00","source":"crossref"},{"observed_at":"2026-08-05T06:32:44.755628+00:00","source":"retraction_watch"}],"thesis":"As of 6 August 2026, this Paper Citation Record lists 65 of 65 outbound references and 0 inbound Pith citation observations for arXiv:2607.03268."}