{"as_of":"2026-08-04T09:06:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:45a8adf0341d7b2df36b753499122e1e1556266482615f4f64a2e21f5cbffdb9","coverage":[{"denominator":40,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":40,"source":"paper_references, paper_reference_links","source_observed_at":"2026-05-15T22:51:00.556307Z","state":"measured"},{"denominator":41,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":41,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-04T06:34:03.388597+00:00","state":"measured"},{"denominator":1,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":1,"source":"paper_references, paper_reference_links","source_observed_at":"2026-05-07T08:18:15.286976Z","state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"pith","source_observed_at":"2026-05-12T10:01:28.998715Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"cited_work":{"arxiv_id":"2602.12805","doi":null,"metadata_source":"pith","pith_arxiv_id":"2602.12805","snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","venue":"physics.med-ph","work_id":"00952363-23b9-433f-87cc-bb25d9642759","year":2026},"citing_paper":{"arxiv_id":"2604.27428","last_updated":"2026-04-30T05:06:42Z","snapshot_observed_at":"2026-07-31T17:45:46.041035Z","submitted_at":"2026-04-30T05:06:42Z","title":"Wave-Equation Migration Velocity Analysis for Multistatic Synthetic Aperture Ultrasound","version":1},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-05-07T08:18:15.286976Z"},"links":{"cited_paper":"/paper/2602.12805","citing_paper":"/paper/2604.27428"},"observation_digest":"sha256:0fddfad937c6dbc6d675668f50d73e9e5282b68704455116b3cf067001f09823","observation_id":"1d327c04-64ca-46a9-98ab-857d6c493e3d","resolution":{"observed_at":"2026-05-12T10:01:29.001545Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/2602.12805/citation-record","integrity":"/paper/2602.12805/integrity","json":"/paper/2602.12805/citation-record.json","paper":"/paper/2602.12805"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":"Aberration correction in diagnostic ultrasound: A review of the prior field and current directions","venue":null,"work_id":"c2c5614c-5c38-4e81-bb69-6b45b2bd87ef","year":2023},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:c664c6dd80bc985e1d2945648aa52e7b2052fd7a676ecf940f0e42be6746fd4f","observation_id":"d8363a3a-b10d-4a62-b118-72cf5161a714","resolution":{"observed_at":"2026-05-15T22:51:48.076600Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Quantifying image quality improvement using elevated acoustic output in B-mode harmonic imaging","venue":null,"work_id":"4329211e-8b47-4f08-8688-06ddfa68975c","year":2017},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:e9da50dcd2895db1913018d64312c5a65c2dbcbd7a2487ad73ba45f6f5903e9a","observation_id":"50f00211-2a81-41c1-9f0a-dbf3910241d1","resolution":{"observed_at":"2026-05-15T22:51:48.119693Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Pitfalls in ultrasound imaging of the stomach and the intestines","venue":null,"work_id":"b9f6d8d2-024d-4dc4-9392-045fa68fb1d5","year":2018},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:1d3567a1fb4b37e9ad29871f9334dfcc8e26bdac4ea756c738c61b7d94a3f64d","observation_id":"2499d742-64a3-4c53-b8b9-c75fcdfa38c1","resolution":{"observed_at":"2026-05-15T22:51:48.176909Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Full correction for spatially distributed speed-of-sound in echo ultrasound based on measuring aberration delays via transmit beam steering","venue":null,"work_id":"fa61680e-e3d8-45f8-a513-f21a65200c1b","year":2015},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:c474c00d6b5582edb792b86c3a45fabf42a5994a9832f49c48a20cea145cd73b","observation_id":"882ddc18-11ff-4f7b-be25-8ae1facbdea7","resolution":{"observed_at":"2026-05-15T22:51:48.156640Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Computed ultrasound tomography in echo mode for imaging speed of sound using pulse-echo sonography: Proof of principle","venue":null,"work_id":"7343c3eb-30c9-4660-b7ee-e163093e48b8","year":2015},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:c172d87eaa70d54610d7edc572d6b613fe79f02f3e47a5610d3954855abaff5f","observation_id":"2d8b0597-6b18-4637-85b8-6902e06dd7e2","resolution":{"observed_at":"2026-05-15T22:51:48.092510Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Spatial domain reconstruction for imaging speed-of-sound with pulse-echo ultrasound: simulation and in vivo study","venue":null,"work_id":"5395177e-0e8d-417e-b253-1a70b400ccc5","year":2018},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:ecc660ee2570f341b1f858528bd87db16997672c77bc3dabfabada785683fb87","observation_id":"f566ccd3-3d41-41b8-92a7-e37d96eb5883","resolution":{"observed_at":"2026-05-15T22:51:48.108270Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-07-11T01:07:50.004659Z","title":"Improved forward model for quantitative pulse-echo speed-of-sound imaging","venue":null,"work_id":"0342cf10-ef81-48eb-8090-b2dd82cc2117","year":2020},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:63c3f59bb7463799ba003bcc210b8e39380a1f256cec4e3e2915f05b65946b26","observation_id":"0cad01a3-8c0f-446b-bdf7-95ca810d97cb","resolution":{"observed_at":"2026-05-15T22:51:48.211824Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Speed-of-sound imaging using diverging waves","venue":null,"work_id":"a8cda896-c748-4eca-a8fa-177f6dd2058c","year":2021},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:aab6a34412cf49a4beb5b0e0af9564fa4202e1e9714e3acae9fd951881579166","observation_id":"35eb70fc-fd3a-4957-8189-24186875c2f5","resolution":{"observed_at":"2026-05-15T22:51:48.171557Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Local speed of sound estimation in tissue using pulse-echo ultrasound: Model-based approach","venue":null,"work_id":"2c00828f-34f8-4aa4-a15d-bc278454b04b","year":2018},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:cd1a0d5f6ecbc8dead51abbe63b51f04193ad016326016f58caa39a925e04a01","observation_id":"778c02ab-b4f2-40b9-9e83-ce5d0d21d881","resolution":{"observed_at":"2026-05-15T22:51:48.229155Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Local sound speed estimation for pulse- echo ultrasound in layered media","venue":null,"work_id":"fdde3949-865b-4b86-8e7a-f3a5ec1ee73e","year":2022},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:0619ff8d7e07ea8adb3464bc079bb5cb892196f0275051714bdd8b1cf8645e98","observation_id":"60a9b030-9d72-48c1-8384-ba5e12d211bc","resolution":{"observed_at":"2026-05-15T22:51:48.225128Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Distributed phase aberration correction techniques based on local sound speed estimates","venue":null,"work_id":"f93af005-ae22-4a92-980c-ec06ff6f1e49","year":2018},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:69fd36bb2dcd0592123ca5f84489a9c77995b2701bb8b1c9db84d3faeb343ff4","observation_id":"8a02be01-24e4-4fa9-9351-2eeaa102adbc","resolution":{"observed_at":"2026-05-15T22:51:48.202938Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Refraction-aware integral operator for speed-of-sound pulse-echo imaging","venue":null,"work_id":"39149156-2ffe-4ccf-871e-214af7c2546d","year":2020},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:86356386636a382b6d52510e32d87d2d3890a5c2ae036169e1a3bb3aea7b8b8f","observation_id":"c9137586-286d-4f72-8867-d43db54f0116","resolution":{"observed_at":"2026-05-15T22:51:48.135392Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Distributed aberration correction techniques based on tomographic sound speed estimates","venue":null,"work_id":"fcd01c9a-a953-4560-9fbd-944b806b7abf","year":2022},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:f486db5b0a26fcf3ed9fb1a47ba5f744b4bd56e099d77089bf0c5ce79d5fa797","observation_id":"b7eccd1a-d0e9-4da2-b3e6-1f7158673f97","resolution":{"observed_at":"2026-05-15T22:51:48.237087Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Iterative sound speed tomography for distributed aberration correction","venue":null,"work_id":"3f67df01-9200-4a14-a7c1-ed6ce161c267","year":2023},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:0f0736d272e447c84f8021cb93d3236bcd3c175324030dd31482cdcad37057fa","observation_id":"25365ebc-de62-43f1-86d0-14bbc532e4d2","resolution":{"observed_at":"2026-05-15T22:51:48.198675Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Iterative pulse–echo tomography for ultrasonic image correction","venue":null,"work_id":"bd2c061d-fb58-44ff-9e84-c481f549ba32","year":2024},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:950845b2025d1e5b9cd8693bf53b76764cfbfa344f06ace30e2c13bc6e0faf74","observation_id":"e094ae91-7c08-4a19-8e2e-77b57419549e","resolution":{"observed_at":"2026-05-15T22:51:48.241429Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Adaptive compensation of phase and magnitude aberrations","venue":null,"work_id":"dd901ed6-7d4f-4b67-b7ca-735d37e42322","year":1996},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:cad1f543f56f157c6b3e64c388d9a569b5ec73e738810d09b5acea8210de18d6","observation_id":"909d253b-eab8-4a4d-a382-9742e9a96aa8","resolution":{"observed_at":"2026-05-15T22:51:48.220819Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Iteration of transmit-beam aberration correction in medical ultrasound imaging","venue":null,"work_id":"2959dabb-51f9-4f60-8445-2a7110a48932","year":2005},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":17,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:086194981acd692f659e8ffede3d707dd3c41d1d57cb0508c6ce708ab347140f","observation_id":"40b4445f-f739-4973-a0e1-fdca28ffee55","resolution":{"observed_at":"2026-05-15T22:51:48.207438Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Pixel-responsive optimization beamforming method for ultrasound transcranial imaging","venue":null,"work_id":"f3c89b12-8671-4983-93c6-6a34d08698dc","year":2025},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:45ff4f9c8ba0ea4715997d9d5bc6614b897e6c779776f307d30ba90606e8e321","observation_id":"e3ddb7f9-175e-474d-899c-019bed97abb8","resolution":{"observed_at":"2026-05-15T22:51:48.251022Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Ultrasound autofocusing: Common midpoint phase error optimization via differentiable beamforming","venue":null,"work_id":"8d021258-44bd-4bb8-b39e-31e2d482fe91","year":2025},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:264d57b4bbb45d036a4631e81433baa3e97bb03da93020396439df2818a44f18","observation_id":"88c57748-cc87-4f56-89cd-5ae8a9949b5f","resolution":{"observed_at":"2026-05-15T22:51:48.140198Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"A comparison of imaging con- ditions for wave-equation shot-profile migration","venue":null,"work_id":"e3c0c269-67d2-42e2-a9c6-854a8d37534b","year":2008},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:6e721398f7cbc381764e85bc2e8b8dd73d7ea194467e45b913795c4b270efaf0","observation_id":"cf9e9c42-7808-4a7f-8dea-1ec4feca06cc","resolution":{"observed_at":"2026-05-15T22:51:48.081849Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Full-wave ultrasound reconstruction with linear arrays based on a fourier split-step approach","venue":null,"work_id":"e8fa9672-5bb3-4be9-a276-40fe7c792c49","year":2018},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:e551c8166e9445cb43dd00a30a079335bfc1fafb04c8b56c86678c82eeb63c9b","observation_id":"77eb3448-a924-4867-bf90-1b2887085cac","resolution":{"observed_at":"2026-05-15T22:51:48.097636Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Fourier-based synthetic-aperture imaging for arbitrary trans- missions by cross-correlation of transmitted and received wave-fields","venue":null,"work_id":"b67b3893-4ed1-4b82-aaa6-c106fb64ecb5","year":2021},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:b40e97afb3242088a46766b73ce54371e9f127f2357c2fae8abffaa502c715b6","observation_id":"50162ae2-02b4-4e28-a11e-c305484d3405","resolution":{"observed_at":"2026-05-15T22:51:48.087519Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Simultaneous re- verberation noise reduction and aberration correction using wavefield correlation","venue":null,"work_id":"7280c624-d0a3-4ce1-8a4f-4693df245f13","year":2024},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":23,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:2a621e854fbcafaa22e5ded547eb5bbf6dbf9444d4cf758cb3b637bdbedc11ed","observation_id":"72f10c00-a671-4886-9daa-163b2411d969","resolution":{"observed_at":"2026-05-15T22:51:48.070649Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Sound speed estimation for distributed aberration correction in laterally varying media","venue":null,"work_id":"b6556c05-b6e7-4e68-af51-0d8752565751","year":2023},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:d46b0a44a531f478ea3e8b483113001ffa7e4004d19529dc092dff6499797644","observation_id":"710d92fe-7df6-48b3-9a48-3f8b3621ca84","resolution":{"observed_at":"2026-05-15T22:51:48.145951Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Ultrasonic imaging of irregularly shaped notches based on elastic reverse time migration","venue":null,"work_id":"3ee9cb4e-b14a-4d3f-abf8-8ea575d54f14","year":2019},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:0e71c3f40349dba4e9ce6fe90046c5d35899b26088f40b704e4a082535a76b48","observation_id":"8bbc607d-f7af-47de-9631-0c892dfdeb02","resolution":{"observed_at":"2026-05-15T22:51:48.181198Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Comparison of analytical and numerical approaches for CT-based aberration correction in transcranial passive acoustic imaging","venue":null,"work_id":"d661bf93-613e-4029-9a70-7c1219f86fb3","year":2015},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:5cffd20f181614850fe7c0a57aa094c35243d5a907c523f8c23b5914fc0f855d","observation_id":"e6241aeb-740a-400e-af6a-2681237196e9","resolution":{"observed_at":"2026-05-15T22:51:48.246327Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Toward a unified theory of reflector mapping","venue":null,"work_id":"98b50268-4977-407e-b092-9254cbc184d2","year":1971},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:695a3ff743ad9910a158984ea797741ebd336b4fcae179be726ecfecc193dae7","observation_id":"d38c8858-ff51-4d23-83b1-1548f2896b11","resolution":{"observed_at":"2026-05-15T22:51:48.113872Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Adaptive focusing in scattering media through sound-speed inhomogeneities: The van Cittert Zernike approach and focusing criterion","venue":null,"work_id":"5c4fddaf-f703-4383-b7ba-8d1ee5e0f9db","year":1994},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:f1efa8a6167c9a7309701fe8e312d346b169611f2195a2f3413c07efda980832","observation_id":"06191ba2-2491-417e-be23-c590f0e61f3a","resolution":{"observed_at":"2026-05-15T22:51:48.194501Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"A heterogeneous nonlinear attenuating full-wave model of ultrasound","venue":null,"work_id":"4d3f8a94-7efc-4f7d-a20b-dcb64aa15ad5","year":2009},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":29,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:794d83e923cfb3fb99dc350af359769d96f91428f1af5999eb7c1eaf2464ac61","observation_id":"194ae0be-8c76-4469-b86a-c617149f7baa","resolution":{"observed_at":"2026-05-15T22:51:48.103004Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2106.11476","last_updated":"2026-07-31T15:11:34Z","snapshot_observed_at":"2026-08-04T08:46:34.287063Z","submitted_at":"2021-06-22T01:41:05Z","title":"A fullwave model of the nonlinear wave equation with multiple relaxations and relaxing perfectly matched layers for high-order numerical finite-difference solutions","version":2},"cited_work":{"arxiv_id":"2106.11476","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"2106.11476","snapshot_observed_at":"2026-08-03T01:25:05.721923Z","title":"A fullwave model of the nonlinear wave equation with multiple relaxations and relaxing perfectly matched layers for high-order numerical finite-difference solutions","venue":null,"work_id":"abdd9cf9-8317-4651-b4e8-c8c9a79c237f","year":2026},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":30,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"cited_paper":"/paper/2106.11476","citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:4bc3fa1e635ce83da7131900bc0963923af9b659b32416b7bee1249384771f1d","observation_id":"502fc34f-308d-43bd-8e2b-be6f11970b1f","resolution":{"observed_at":"2026-08-03T01:25:05.721923Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Labeled numerical phantom of abdominal wall for wave-physics based ultrasound imaging: applications to image reconstruction","venue":null,"work_id":"234e021c-33b6-49e0-a3dc-1aad8eff2eda","year":2025},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":31,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:1c8db2febc792329c19a76271782d6a77e63f50622eeaa1e25c807d3a1d9b562","observation_id":"31843c91-0a87-4820-b6ae-6609df65b51d","resolution":{"observed_at":"2026-05-15T22:51:48.125005Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Noninvasive estimation of local speed of sound by pulse-echo ultrasound in a rat model of nonalcoholic fatty liver","venue":null,"work_id":"92f8e6cb-5dfb-443c-8983-4f3a8b8a7f0b","year":2022},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":32,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:9ab3f0d3d30708b07d1f6b6d2760b5080cf77ec91154a261cfcc29c276403c20","observation_id":"dacdcba5-e399-4873-b36c-c1c9e65f2dc0","resolution":{"observed_at":"2026-05-15T22:51:48.215931Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Reverberation noise suppression in ultrasound channel signals using a 3D fully convolutional neural network","venue":null,"work_id":"74e00531-9066-419a-bd71-7df21e48a66f","year":2021},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":33,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:637abb1bbde0ad6e8bfd5507c10e2529e6cfcb14070c35818d62c8229ea859fc","observation_id":"bf85d9ec-e150-443b-bd0a-d8f67af4812b","resolution":{"observed_at":"2026-05-15T22:51:48.233131Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"The generalized contrast- to-noise ratio: A formal definition for lesion detectability","venue":null,"work_id":"0d2fb511-4ed8-4d37-a5a2-fbacb08dd8e3","year":2020},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":34,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:05fe4a051b87b275730e3748647cddf109bec9ad373c6d423d3e9d7a887f031c","observation_id":"0190de98-a087-4660-b069-f4ee7bc0a482","resolution":{"observed_at":"2026-05-15T22:51:48.064450Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"3-D traveltime computation using the fast marching method","venue":null,"work_id":"f766120a-4961-49ee-a3e6-92fcc2c5544b","year":1999},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":35,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:55d2d9e55c8ddc42f4de8b66a9229b23318feb6713c0dfbf063b80c25b38473c","observation_id":"c83d127a-1f8f-4e45-bb33-9aab3c5e24d3","resolution":{"observed_at":"2026-05-15T22:51:48.185413Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"UltraFlex: Iterative model-based ultrasonic flexible- array shape calibration","venue":null,"work_id":"b3eb13a9-8663-47cf-a9e0-3eebb8f4bf15","year":2025},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":36,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:ddfb2f8144bf2b7f4ba6f627ebee67e387649d6310811b00c1246d646c187f96","observation_id":"6c9c5928-a9e0-4b2d-b7ff-36d79d38ef49","resolution":{"observed_at":"2026-05-15T22:51:48.130279Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"The convolutional interpretation of registration-based plane wave steered pulse-echo local sound speed estimators","venue":null,"work_id":"72d7f272-fced-4853-80b9-c9ca753aa0b6","year":2020},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":37,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:820f808f27ee174419eb2aa9496859e59560989a1f3939b88ef03caa2775f22b","observation_id":"1f4a550f-7623-44d7-9f63-c53ddb339987","resolution":{"observed_at":"2026-05-15T22:51:48.166905Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Distributed aberration correction in handheld ultrasound based on tomographic estimates of the speed of sound","venue":null,"work_id":"9d8e0c12-cb63-445b-a4de-da31f840f9f8","year":2023},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":38,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:434032356523e42adc4f8dd0cc6132e05d4da328b5dbfed07876056636af75cd","observation_id":"e19ec22e-25bf-4a9e-96a8-bb023674b3d9","resolution":{"observed_at":"2026-05-15T22:51:48.161754Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Pulse-echo speed-of-sound imaging using convex probes","venue":null,"work_id":"daf904fc-76f1-4339-964e-8b1973a0648a","year":2022},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":39,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:f32f7a3df0c17eaadcf77e881c614bc79aaa8960498cd1915f96d7e25781809b","observation_id":"950abb1a-34e9-47a9-81b4-f8e6b5948378","resolution":{"observed_at":"2026-05-15T22:51:48.189617Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+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":"2026-06-05T21:23:00.469572Z","title":"Assessing transducer pa- rameters for accurate medium sound speed estimation and image recon- struction","venue":null,"work_id":"c0588db4-d7af-4148-ab05-0dbe60767e01","year":2024},"citing_paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing","version":2},"reference_index":40,"source":"pdf_text","source_observed_at":"2026-05-15T22:51:00.556307Z"},"links":{"citing_paper":"/paper/2602.12805"},"observation_digest":"sha256:c22327dca5c02680f99aed67f49eef01fc76c9e688d7a04225e740bc76f9e504","observation_id":"191cf18c-1582-418d-b741-7088e8322203","resolution":{"observed_at":"2026-05-15T22:51:48.151464Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"2602.12805","last_updated":"2026-05-07T16:54:40Z","latest_version":2,"primary_category":"physics.med-ph","snapshot_observed_at":"2026-07-06T22:45:49.118915Z","submitted_at":"2026-02-13T10:40:20Z","title":"A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing"},"reference_resolution":{"displayed":40,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":0,"verified_exact":1,"verified_fuzzy":39},"total_outbound_references":40},"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":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+00:00","source":"retraction_watch"}],"thesis":"As of 4 August 2026, this Paper Citation Record lists 40 of 40 outbound references and 1 inbound Pith citation observation for arXiv:2602.12805."}