{"as_of":"2026-08-20T10:15:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:c6ce299b6196e60fe3fad6587f68bdbb731eede244c5586e7cb620350f06149d","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":1,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":1,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-20T06:33:59.587034+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":"2026-08-15T15:45:36.313522Z","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":"2026-08-15T15:45:37.104565Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"0904.0163","last_updated":"2009-04-01T14:05:08Z","snapshot_observed_at":"2026-08-15T05:51:36.178750Z","submitted_at":"2009-04-01T14:05:08Z","title":"Quantum Optical Metrology -- The Lowdown on High-N00N States","version":1},"cited_work":{"arxiv_id":"0904.0163","doi":null,"metadata_source":"pith","pith_arxiv_id":"0904.0163","snapshot_observed_at":"2026-08-15T15:45:37.104565Z","title":"Quantum Optical Metrology -- The Lowdown on High-N00N States","venue":"quant-ph","work_id":"15205326-e891-4709-ab5d-854204f74a3d","year":2009},"citing_paper":{"arxiv_id":"2607.25699","last_updated":"2026-07-28T13:22:33Z","snapshot_observed_at":"2026-08-20T07:18:35.486520Z","submitted_at":"2026-07-28T13:22:33Z","title":"Counterfactual Quantum Sensing: What Interaction-Free Measurement Can and Cannot Buy","version":1},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-15T15:45:36.313522Z"},"links":{"cited_paper":"/paper/0904.0163","citing_paper":"/paper/2607.25699"},"observation_digest":"sha256:749820fc0c90c94f55550fa6f89d69c45a571f24790fa7ba8a7a65560c59b883","observation_id":"5f736176-314d-48f7-982f-71f840e3c78a","resolution":{"observed_at":"2026-08-15T15:45:37.110371Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/0904.0163/citation-record","integrity":"/paper/0904.0163/integrity","json":"/paper/0904.0163/citation-record.json","paper":"/paper/0904.0163"},"outbound":[],"paper":{"arxiv_id":"0904.0163","last_updated":"2009-04-01T14:05:08Z","latest_version":1,"primary_category":"quant-ph","snapshot_observed_at":"2026-08-15T05:51:36.178750Z","submitted_at":"2009-04-01T14:05:08Z","title":"Quantum Optical Metrology -- The Lowdown on High-N00N States"},"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":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"thesis":"As of 20 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 1 inbound Pith citation observation for arXiv:0904.0163."}