{"as_of":"2026-08-16T08:11:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:18bb976944d5fe4c63f7f91d08cf5442359bb9e013f992bcd42499383c780a9f","coverage":[{"denominator":28,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":28,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-14T14:57:14.125043Z","state":"measured"},{"denominator":28,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":28,"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/1908.06855/citation-record","integrity":"/paper/1908.06855/integrity","json":"/paper/1908.06855/citation-record.json","paper":"/paper/1908.06855"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:57:14.485255Z","title":null,"venue":null,"work_id":"fb91b9e6-e1ac-4724-aebe-5312dd7dedbe","year":null},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.019170Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:f0dc9db501afc32690cd4988324e4b449653d0c641fedbbbc1c6c94c80580ae2","observation_id":"c0bdb4d8-33ae-4366-a43d-8475146a79db","resolution":{"observed_at":"2026-08-14T14:57:14.489581Z","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":"2026-08-14T14:57:14.471885Z","title":null,"venue":null,"work_id":"18a3c910-6101-41fb-a2cd-61437d95c686","year":null},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.024073Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:e47c6a6b38eb56e047c56b734cddb0726e07a246818810f25dbb19471d106772","observation_id":"2a01dc93-1c44-47da-96bf-9ea469dc0327","resolution":{"observed_at":"2026-08-14T14:57:14.476641Z","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":"2026-08-14T14:57:14.459590Z","title":"dispersive multipath,","venue":null,"work_id":"1af8b9b7-f878-44c8-a751-59a23c1e9dad","year":null},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.028096Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:5d37913a3be95a268b47cce423b94477cd98d2cc151f50e1ba06f6b135581fe9","observation_id":"66d4bfd7-1d6f-4b70-94a0-f96d3d3b1f7b","resolution":{"observed_at":"2026-08-14T14:57:14.463454Z","resolver_source":"raw_fallback","status":"malformed_identifier"},"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":"2026-08-14T14:57:14.446841Z","title":"Supervised automatic detection of UWB ground-penetrating r adar targets using the regression SSIM measure,","venue":null,"work_id":"cac4d280-9df1-4288-aa6d-409239197425","year":2016},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.033112Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:c24e4875c97c15c0547bc308248af8a534ea5387b622a4cc5d2584963c4d2e76","observation_id":"446f7aa0-ec97-4814-a82d-b60774d02c67","resolution":{"observed_at":"2026-08-14T14:57:14.452132Z","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":"2026-08-14T14:57:14.434394Z","title":"A sparse aperture MIMO-SAR-based UWB imaging system for concealed weapon detection,","venue":null,"work_id":"889a980d-b277-4fd9-9521-8bcf8dcc2ca8","year":2011},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.037328Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:4b5561647805229343cafe0ea0938c23c6dff2232aeab3b6c44aa95cbace9aaf","observation_id":"c7b9bf32-f098-4b1e-95b8-51899a4c6adf","resolution":{"observed_at":"2026-08-14T14:57:14.439369Z","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":"2026-08-14T14:57:14.422263Z","title":"Through-wall detection of human being’s movement by UWB radar,","venue":null,"work_id":"ed14c433-bc03-46da-b84d-a3cdb48a7e8a","year":2012},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.041494Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:07013cccca01d69179959d77e349932578608eaaf3b094c6ef0f71a23c280bec","observation_id":"d4b6178f-efbb-4754-93e8-6e8965ceff92","resolution":{"observed_at":"2026-08-14T14:57:14.426517Z","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":"2026-08-14T14:57:14.410458Z","title":"An overview of ultra-wideband microwave imaging via space-time beamforming for early-stage breast-cancer detection,","venue":null,"work_id":"49d6f15a-e44e-4550-814d-f3ce9cef7aa8","year":2005},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.045290Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:a49d1a8dc354a6ff7d9bbe0143927aa658b533d7744c2aee8a6f18908c686b97","observation_id":"033366fd-7209-4a03-ba2a-ad788aafb863","resolution":{"observed_at":"2026-08-14T14:57:14.414773Z","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":"2026-08-14T14:57:14.398249Z","title":"Microwave contrast imaging of breast tissue from local velocity estimation,","venue":null,"work_id":"5bcc9daa-5cd5-41d6-a409-587929ac81a2","year":2012},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.049246Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:41917fa72edcbd4c349155f7982cf69f52dce7dc2a521b557ad1ed64f02c13e0","observation_id":"9dbfdcb5-7791-496c-aa68-8d8175304e79","resolution":{"observed_at":"2026-08-14T14:57:14.402248Z","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":"2026-08-14T14:57:14.384850Z","title":"Novel preprocessing techniques for accurate microwave imaging of human brain,","venue":null,"work_id":"f627386b-afce-4704-a4f6-32f472529382","year":2013},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.053084Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:1f5fcdf0df8bd990502a2124bd18e23c0a79e7f1f1de4c8af362721ecc85a171","observation_id":"860702b7-46cb-4c5e-a391-cda765aace35","resolution":{"observed_at":"2026-08-14T14:57:14.389149Z","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":"2026-08-14T14:57:14.367903Z","title":"Beamforming algorithms for UWB radar-based stroke detection: Trade-off performance-complexity,","venue":null,"work_id":"1755bcc8-555c-41c5-bb2c-40e732d37473","year":2016},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.056942Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:646cb5e6d506a907be39daa16941ae7cc051f8e89610909a09b05f9a319a48e3","observation_id":"fb50f1a3-c280-4ff7-8876-73d953c02842","resolution":{"observed_at":"2026-08-14T14:57:14.374186Z","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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:57:14.060564Z","title":"A confocal microwave imaging algorithm for breast cancer detection,","venue":null,"work_id":null,"year":2001},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.060564Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:8d83b21d87646af11f784c63ae041bfab80221774f710a7f8e10ca46e4d236ec","observation_id":"17804f84-3393-4533-bf5d-e21ab5ca715f","resolution":{"observed_at":"2026-08-14T14:57:14.060564Z","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":"2026-08-14T14:57:14.347439Z","title":"Confocal microwave imaging for breast cancer detection: Localization of tumors in three dimensions,","venue":null,"work_id":"b5cb507d-f4b1-439c-9e67-d6a060d2df24","year":2002},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.064154Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:aea0723227ddfce4c770021e9469bb55b792b44dba91a7c70bf550b25b2acdbd","observation_id":"1f94165d-4d1c-448c-81d6-ce4b9976b815","resolution":{"observed_at":"2026-08-14T14:57:14.351461Z","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":"2026-08-14T14:57:14.335958Z","title":"Confo- cal microwave imaging for breast cancer detection: Delay-multiply- and-sum image reconstruction algorithm,","venue":null,"work_id":"c25e202c-adb2-42d9-8fae-6587d2ebba54","year":2008},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.067894Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:be88e3b42a18e7c9415c7927446c69ad98958f57ade438d2e9aeef418d0426d2","observation_id":"f76bc9ea-0bb7-4bd6-886d-0d6a65e02107","resolution":{"observed_at":"2026-08-14T14:57:14.340320Z","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":"2026-08-14T14:57:14.323696Z","title":"Detection of malignant breast tissues using microwave imaging,","venue":null,"work_id":"a41066ce-1b10-492c-92e6-2ea96576dc3b","year":2009},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.072212Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:7c9b31b7b695eba94961f1a2f696b38316ffbdffc3faf903ade8bfaefd6b7daf","observation_id":"9ca7517e-1cdf-4395-994b-6bdc53b83255","resolution":{"observed_at":"2026-08-14T14:57:14.327662Z","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":"2026-08-14T14:57:14.311299Z","title":"Multi-polarized microwave power imaging algorithm for early breast cancer detection,","venue":null,"work_id":"1868bb7c-2312-4578-90df-856e4078e504","year":2012},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.076033Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:ad157c3e349812153d235585ba8be030f280406b283fe1460fe38ace6bfb038f","observation_id":"1c97b64c-abd3-47cf-878e-d8d71a90b7c8","resolution":{"observed_at":"2026-08-14T14:57:14.316183Z","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":"2026-08-14T14:57:14.297857Z","title":"Prefiltered beamforming for early-stage breast cancer detection,","venue":null,"work_id":"fdef3f56-b8ea-491a-a98a-8537b21069fb","year":2013},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.079639Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:7ccb89da8eba38efd01eb0fb0b2e39f6776cfe36850ddbd93894ed22eec06bd3","observation_id":"a2bd19b3-3ecf-4b88-86c4-464cec21c7cd","resolution":{"observed_at":"2026-08-14T14:57:14.302387Z","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":"2026-08-14T14:57:14.285546Z","title":"A preprocessing filter for multistatic microwave breast imaging for enhanced Tumour detection,","venue":null,"work_id":"4d80c1d0-7904-496d-b3ca-e6a964f37aa5","year":2014},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":17,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.083276Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:f77adf93d9d9e045202dd6667c61428e564967e1e88308224d0f3ec648814caa","observation_id":"c042e868-e17b-4ce7-b9b2-9d5d8eb004d2","resolution":{"observed_at":"2026-08-14T14:57:14.289430Z","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":"2026-08-14T14:57:14.274184Z","title":"A robust and artifact resistant algorithm of ultrawideband imaging system for breast cancer detection,","venue":null,"work_id":"6b8f5820-12af-4923-a13a-8fdbcfddf8dc","year":2015},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.087324Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:5e80bb29439183d97f7616d75470e883808509578ab825fa82108cf9385a9b05","observation_id":"096c7757-dc1c-42b1-9aab-93aa364686b4","resolution":{"observed_at":"2026-08-14T14:57:14.278236Z","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":"2026-08-14T14:57:14.262548Z","title":"A phase confocal method for near-field microwave imaging,","venue":null,"work_id":"c3e77371-5b41-4f26-9a1f-135ce0237d30","year":2017},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.090890Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:29f4a6ab202d17c7b0245759c83822d0219b78be1b16c2f74d09353937c90865","observation_id":"74b55518-4058-4625-9904-324d2ea38801","resolution":{"observed_at":"2026-08-14T14:57:14.266766Z","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":"2026-08-14T14:57:14.251667Z","title":"Synthetic focusing method,","venue":null,"work_id":"fadf3221-dd6c-49b9-9a6c-79c33578a97a","year":2005},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.094600Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:4d251012e517a96097f33db430c977236c631ac89224e5107ccae0d6ceb7fd5c","observation_id":"3cf575f4-f8a5-4955-88f1-96cf54bdb8f7","resolution":{"observed_at":"2026-08-14T14:57:14.255271Z","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":"2026-08-14T14:57:14.240863Z","title":"Three-dimensional microwave breast imaging using least electrical path method,","venue":null,"work_id":"8e7a6c5a-dcbd-47d3-9cb8-f3515abaa464","year":2013},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.098246Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:d51019521c6abb7b9268727cfc7dec53eca6ce461225001d354988b2e464f4e9","observation_id":"864a0119-7a16-4dc7-b54a-86dcca76dfd3","resolution":{"observed_at":"2026-08-14T14:57:14.244568Z","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":"2026-08-14T14:57:14.229232Z","title":"A novel cavity backed monopole antenna with UWB unidirectional radiation,","venue":null,"work_id":"dd1e6e51-c1f7-41ec-8c3a-ae1d2fd363a3","year":2017},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.102217Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:41f8452025f7dac6c7d3671a94bab0f79c6acd97fc59eb500606809f45ca8104","observation_id":"f0b92a79-91d0-4586-bd55-1a95b79ba17d","resolution":{"observed_at":"2026-08-14T14:57:14.233094Z","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":"2026-08-14T14:57:14.216295Z","title":"Microwave imaging device,","venue":null,"work_id":"2611affe-e043-4b27-bd2e-cc94f7fbb194","year":2018},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":23,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.105752Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:014d6554406d84c0ecce6bcf509cc4cc5eb94e04dc34981d96f38ada80e1a9ee","observation_id":"86e47e9f-5543-47a3-bd46-38bdd16b0bf7","resolution":{"observed_at":"2026-08-14T14:57:14.220925Z","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":"2026-08-14T14:57:14.202952Z","title":"A time-domain measurement system for UWB microwave imaging,","venue":null,"work_id":"5b6d62ff-85f8-45b5-98b0-48b437c5f89d","year":2018},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.109086Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:4bde4a821d25eaaaaeebf9e64daa870a6712840d2dcaefb6494012a286106d2f","observation_id":"6d946cf4-b51e-4d37-8de8-d0fe80b634c5","resolution":{"observed_at":"2026-08-14T14:57:14.207243Z","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":"2026-08-14T14:57:14.190523Z","title":"Electrical characterization of glycerin: Water mixtures: Implications for use as a coupling medium in microwave tomography,","venue":null,"work_id":"e16fa89e-7f05-44b9-84ef-60bcc0f63244","year":2017},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.112486Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:990c13a10236b7635da13c8e5f2a24e8fbd3328e4d39aeccaeac96ddeffe47be","observation_id":"9e1da123-5d85-4271-88ba-8de213146020","resolution":{"observed_at":"2026-08-14T14:57:14.194664Z","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":"2026-08-14T14:57:14.178194Z","title":"A directional antenna in a matching liquid for microwave radar imaging,","venue":null,"work_id":"5fce070f-e760-4ef6-a082-ca3eea1eb130","year":2015},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.117073Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:c0cbe98eeb10fe882223b7fcf308eb51e11c71e2ab97412e5c2d3ab67ce6634a","observation_id":"b6a00f3c-2eed-477d-9689-cac369eeb827","resolution":{"observed_at":"2026-08-14T14:57:14.182123Z","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":"2026-08-14T14:57:14.166391Z","title":"Average dielectric property analysis of complex breast tissue with microwave transmission measurements,","venue":null,"work_id":"723fc669-f9ee-4207-8c73-ccc53c4165b8","year":2015},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.120804Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:ceed642f157ef99e11588411be773a690ea6409b90d956a67cb79a47899e2041","observation_id":"af790674-7f2a-44c9-986d-15c205360cb8","resolution":{"observed_at":"2026-08-14T14:57:14.170536Z","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":"2026-08-14T14:57:14.152115Z","title":"Fast photoacoustic imaging system based on 320-element linear transducer array,","venue":null,"work_id":"dddc6941-c682-4067-8769-31d18bbb68c1","year":2009},"citing_paper":{"arxiv_id":"1908.06855","last_updated":"2019-08-06T14:04:33Z","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media","version":1},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-08-14T14:57:14.125043Z"},"links":{"citing_paper":"/paper/1908.06855"},"observation_digest":"sha256:ac52b5e2dc367a155d353c98a9f3ccb3b5379546589404cbb9fc29464581f4d9","observation_id":"3fa08912-0d73-42d5-a147-b51fa8194b98","resolution":{"observed_at":"2026-08-14T14:57:14.158313Z","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":"1908.06855","last_updated":"2019-08-06T14:04:33Z","latest_version":1,"primary_category":"eess.SP","snapshot_observed_at":"2026-08-16T02:24:52.979605Z","submitted_at":"2019-08-06T14:04:33Z","title":"A Phase Shift and Sum Method for UWB Radar Imaging in Dispersive Media"},"reference_resolution":{"displayed":28,"state_counts":{"malformed_identifier":1,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":3,"verified_exact":0,"verified_fuzzy":24},"total_outbound_references":28},"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 28 of 28 outbound references and 0 inbound Pith citation observations for arXiv:1908.06855."}