{"as_of":"2026-08-18T16:07:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:9633059c4e2db32a0b90db30d3e1eed4550145fc64e1dfde773d42e12ec8046c","coverage":[{"denominator":0,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"state":"measured"},{"denominator":3,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":3,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-18T06:34:40.430872+00:00","state":"measured"},{"denominator":3,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":3,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-01T16:48:51.326566Z","state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"arxiv_reference","source_observed_at":"2026-07-01T01:15:12.406972Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1912.06141","last_updated":"2021-10-15T14:08:22Z","snapshot_observed_at":"2026-08-18T08:02:48.091989Z","submitted_at":"2019-12-12T19:00:01Z","title":"Impossible measurements revisited","version":3},"cited_work":{"arxiv_id":"1912.06141","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"1912.06141","snapshot_observed_at":"2026-07-01T01:15:12.406972Z","title":"Borsten, I","venue":null,"work_id":"4307ed2a-d38f-42a2-819a-335b3fe0b3ea","year":2021},"citing_paper":{"arxiv_id":"2511.06566","last_updated":"2026-04-03T03:17:15Z","snapshot_observed_at":"2026-08-15T03:33:41.393753Z","submitted_at":"2025-11-09T22:55:57Z","title":"Causal measurement in quantum field theory: spacetime","version":2},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-05-17T23:17:10.681981Z"},"links":{"cited_paper":"/paper/1912.06141","citing_paper":"/paper/2511.06566"},"observation_digest":"sha256:f1fa67933556f34a2ab9572790bbd391cf84085e91fccae3d417788f00e3bcd1","observation_id":"d41bcb81-f0d6-452b-8ac6-3246dbad375a","resolution":{"observed_at":"2026-05-17T23:20:27.713872Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1912.06141","last_updated":"2021-10-15T14:08:22Z","snapshot_observed_at":"2026-08-18T08:02:48.091989Z","submitted_at":"2019-12-12T19:00:01Z","title":"Impossible measurements revisited","version":3},"cited_work":{"arxiv_id":"1912.06141","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"1912.06141","snapshot_observed_at":"2026-07-01T01:15:12.406972Z","title":"Borsten, I","venue":null,"work_id":"4307ed2a-d38f-42a2-819a-335b3fe0b3ea","year":2021},"citing_paper":{"arxiv_id":"2606.30853","last_updated":"2026-06-29T19:34:06Z","snapshot_observed_at":"2026-08-12T15:24:36.939257Z","submitted_at":"2026-06-29T19:34:06Z","title":"Rethinking quantum information in gravity and fields","version":1},"reference_index":198,"source":"pdf_text","source_observed_at":"2026-07-01T01:14:50.851412Z"},"links":{"cited_paper":"/paper/1912.06141","citing_paper":"/paper/2606.30853"},"observation_digest":"sha256:cc2193aab841ca5b696c9b008a0ef458e7f3ec19af5c10c0812e529625258240","observation_id":"de3f3186-7018-4dc2-8311-e2d910791dee","resolution":{"observed_at":"2026-07-01T01:15:12.408541Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1912.06141","last_updated":"2021-10-15T14:08:22Z","snapshot_observed_at":"2026-08-18T08:02:48.091989Z","submitted_at":"2019-12-12T19:00:01Z","title":"Impossible measurements revisited","version":3},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1912.06141","snapshot_observed_at":"2026-08-01T16:48:51.326566Z","title":"Borsten, I","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2607.17920","last_updated":"2026-07-20T13:16:36Z","snapshot_observed_at":"2026-08-18T08:09:08.106389Z","submitted_at":"2026-07-20T13:16:36Z","title":"Sensing relativistic quantum fields with minimally perturbing local measurements","version":1},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-08-01T16:48:51.326566Z"},"links":{"cited_paper":"/paper/1912.06141","citing_paper":"/paper/2607.17920"},"observation_digest":"sha256:e378252834a351db25bb4da841980290f648a9db5601d9c9b17f5a78b1db8855","observation_id":"595744ee-d956-4b57-b745-68322658054b","resolution":{"observed_at":"2026-08-01T16:48:51.326566Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"links":{"evidence":"/evidence","html":"/paper/1912.06141/citation-record","integrity":"/paper/1912.06141/integrity","json":"/paper/1912.06141/citation-record.json","paper":"/paper/1912.06141"},"outbound":[],"paper":{"arxiv_id":"1912.06141","last_updated":"2021-10-15T14:08:22Z","latest_version":3,"primary_category":"quant-ph","snapshot_observed_at":"2026-08-18T08:02:48.091989Z","submitted_at":"2019-12-12T19:00:01Z","title":"Impossible measurements revisited"},"reference_resolution":{"displayed":0,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":0,"verified_exact":0,"verified_fuzzy":0},"total_outbound_references":0},"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":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"thesis":"As of 18 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 3 inbound Pith citation observations for arXiv:1912.06141."}