{"as_of":"2026-08-16T23:04:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:aa510a52c6527cda1cb1b11c5f09dbb4a71c8259c30bc7a2912208435c9cdece","coverage":[{"denominator":16,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":16,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-16T10:14:29.946124Z","state":"measured"},{"denominator":16,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":16,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-16T06:30:59.297886+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/2504.18901/citation-record","integrity":"/paper/2504.18901/integrity","json":"/paper/2504.18901/citation-record.json","paper":"/paper/2504.18901"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:29.903210Z","title":"”Affine frequency division multiplexing (AFDM) for 6g: Properties, features, and challenges.” [Online], Avaiable: https: //arxiv.org/abs/2507.21704","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.903210Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:e0c6c4d4e229e5063b438a365f5389831bd580473a0966c7b4986329fc13b898","observation_id":"08ba5685-32c6-430e-8d1a-457a041abd4b","resolution":{"observed_at":"2026-08-16T10:14:29.903210Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:30.222933Z","title":null,"venue":null,"work_id":"ed56cc4d-365b-455c-bab9-1346b179f78b","year":2025},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.907267Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:dc0065dddf4e92297841e2a74da39673c9846162ce20ae9aff63e26bb38d774d","observation_id":"0508dd88-c1df-4586-b406-f4fbf05aa45f","resolution":{"observed_at":"2026-08-16T10:14:30.225313Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:30.214037Z","title":"Joint Sparse Graph for Enhanced MIMO-AFDM Receiver Design ,","venue":null,"work_id":"a609eb69-f0c4-4400-b82d-8feb43ac68fc","year":2025},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.910034Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:65495c189b8cbc515625d2287346546bbb067c9a1664b206ca781952149178dd","observation_id":"9dc4a294-a6e0-4c39-85e3-89115534c844","resolution":{"observed_at":"2026-08-16T10:14:30.217693Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2502.04735","last_updated":"2025-02-07T08:07:33Z","snapshot_observed_at":"2026-08-08T21:38:58.543936Z","submitted_at":"2025-02-07T08:07:33Z","title":"Affine Frequency Division Multiplexing: Extending OFDM for Scenario-Flexibility and Resilience","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2502.04735","snapshot_observed_at":"2026-08-16T10:14:29.913192Z","title":"”Affine Frequency Division Multiplexing: Extending OFDM for Scenario-Flexibility and Resilience.” [Online], Avaiable: https: //arxiv.org/abs/2502.04735","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.913192Z"},"links":{"cited_paper":"/paper/2502.04735","citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:fa857d3b52fdc66bd95950ecd3887155cdc92542c2495f48a9ab7b9dc756ef91","observation_id":"c9f75486-f990-42e6-ad08-ade955ea84ef","resolution":{"observed_at":"2026-08-16T10:14:29.913192Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:30.205005Z","title":"Ouyang and J","venue":null,"work_id":"aa1e3e95-a86e-4b28-ab37-44595faf311b","year":2016},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.916593Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:07229e427b85ac7acb6c4c4a3b1c34cf11d6a2590508a979d8f902ccc463906a","observation_id":"fc88022a-8508-4af3-a306-8a6e685e1efa","resolution":{"observed_at":"2026-08-16T10:14:30.207707Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:30.197134Z","title":"Hadani et al., ”Orthogonal Time Frequency Space Modulation,” in Proc","venue":null,"work_id":"47159d82-f7ea-4422-9d6f-ffe775388009","year":2017},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.919072Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:94ea47601acf97b4ce8fece75dee410d2a98d6b3c6a5ea2c10d8a52553c1aded","observation_id":"a7f7e449-a648-472f-ad58-17ae1942edca","resolution":{"observed_at":"2026-08-16T10:14:30.199820Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:30.188618Z","title":"Affine Frequency Division Multiplexing for Next Generation Wireless Communications,","venue":null,"work_id":"abc2bcd0-bd06-43cc-b99c-1081e7e40bac","year":2023},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.921536Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:584a84e621abb9968c5090604f13a30d6cf67b59f8015cbfada381b07f335814","observation_id":"f532eadc-2ffc-44bd-a999-1a0511704c2e","resolution":{"observed_at":"2026-08-16T10:14:30.191647Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2508.06022","last_updated":"2026-07-04T18:22:47Z","snapshot_observed_at":"2026-08-14T04:35:37.625167Z","submitted_at":"2025-08-08T05:17:17Z","title":"Multi-Functional Chirp Signalling for Next-Generation Multi-Carrier Wireless Networks: Communications, Sensing and ISAC Perspectives","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2508.06022","snapshot_observed_at":"2026-08-16T10:14:29.924001Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.924001Z"},"links":{"cited_paper":"/paper/2508.06022","citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:b0da202904702e0f06786d9bf303d3bf6badd912b1d9838c3700b461e65dbc08","observation_id":"8f6d4395-0335-4451-b398-15a7c74f7b49","resolution":{"observed_at":"2026-08-16T10:14:29.924001Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:29.926942Z","title":null,"venue":null,"work_id":null,"year":2025},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.926942Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:e93eea819993d6722e71b1b7d8b81dce319137810acdedf7f9e237add1b78040","observation_id":"c8fcca4b-ed47-4283-adc6-25d90beba896","resolution":{"observed_at":"2026-08-16T10:14:29.926942Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:29.929456Z","title":"Yuan et al., ”PAPR Reduction With Pre-Chirp Selection for Affine Frequency Division Multiplexing,” inIEEE Wireless Commun","venue":null,"work_id":null,"year":2025},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.929456Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:8cd1de4735a247b827093ad7dfdeddbac68227d4c6b62466e5bdde3218e620d6","observation_id":"ff0fc113-cf22-4254-bd73-87c2aff1f8c6","resolution":{"observed_at":"2026-08-16T10:14:29.929456Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:30.179813Z","title":"Luo et al., ”AFDM-SCMA: A Promising Waveform for Massive Connectivity Over High Mobility Channels,” inIEEE Trans","venue":null,"work_id":"632e2c11-bf7e-4370-8ae3-f4cb34aaa40d","year":2024},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.932412Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:4dfcef654aa412fc30dd2250d591bd3f4849a14baa7c43453105705839a9b5bd","observation_id":"2e0a4679-29fa-432e-8659-93b9368a22af","resolution":{"observed_at":"2026-08-16T10:14:30.183217Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:30.170900Z","title":"Diagonally Reconstructed Channel Estimation for MIMO-AFDM With Inter-Doppler Interference in Doubly Selective Channels,","venue":null,"work_id":"9b13760e-50ea-4025-8e57-4e46a69a151f","year":2024},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.934998Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:12b572ffea34e497f6cd0dca75ea3536af6e5d2ae58477e28446cf494db3be3d","observation_id":"3082fad3-8423-4ffb-8093-0c9748628d54","resolution":{"observed_at":"2026-08-16T10:14:30.174290Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:30.162227Z","title":"Channel Estimation for AFDM With Superimposed Pilots,","venue":null,"work_id":"d425bdbd-5a35-4764-8b4b-22823f5fe3c4","year":2025},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.937460Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:4d8736994b1b863cf493f56042f1901e96a10bcd151029fff7719ab57c4173c2","observation_id":"5c7c015a-4c1a-4339-953a-420ce3726b71","resolution":{"observed_at":"2026-08-16T10:14:30.166207Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:30.151474Z","title":"Near-Optimal BEM OTFS Receiver With Low Pilot Overhead for High-Mobility Communications,","venue":null,"work_id":"48b4b63e-ef04-40dd-b0b1-3d035f45e9d1","year":2022},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.940554Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:336d4ade0e1597ac2fc7e4422d0c5d622af56d2a3455820c7e5f94a31c511128","observation_id":"c794f017-1f9a-4689-8c9c-49c4f23ce6f6","resolution":{"observed_at":"2026-08-16T10:14:30.155300Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:30.143597Z","title":"Goldsmith, Wireless communications.Cambridge University Press, 2005","venue":null,"work_id":"0946f244-841b-48ed-bfbb-3c73307f8e97","year":2005},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.943765Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:bbd9278849a57f6833082934d39071cb63a4dda553edf0614b39e297f4c10a31","observation_id":"4d63ba43-af4b-4fdc-96c2-f1fc69f32816","resolution":{"observed_at":"2026-08-16T10:14:30.146410Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-16T10:14:30.133976Z","title":"Chirp Parameter Selection for Affine Frequency Division Multiplexing with MMSE Equalization,","venue":null,"work_id":"ef38bdf5-b0d4-4ca2-9514-e6aa6e787b74","year":2025},"citing_paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels","version":2},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-08-16T10:14:29.946124Z"},"links":{"citing_paper":"/paper/2504.18901"},"observation_digest":"sha256:5aac6f6b16a87238fbc622aeca09c4ba2478ca0e8f7b1890da603030d5ce1742","observation_id":"9f86de51-2df3-4231-a312-311c689f1445","resolution":{"observed_at":"2026-08-16T10:14:30.138430Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"2504.18901","last_updated":"2025-09-14T09:41:29Z","latest_version":2,"primary_category":"eess.SP","snapshot_observed_at":"2026-08-16T10:04:25.953502Z","submitted_at":"2025-04-26T12:15:21Z","title":"BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels"},"reference_resolution":{"displayed":16,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":6,"verified_exact":0,"verified_fuzzy":10},"total_outbound_references":16},"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":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"thesis":"As of 16 August 2026, this Paper Citation Record lists 16 of 16 outbound references and 0 inbound Pith citation observations for arXiv:2504.18901."}