{"as_of":"2026-08-21T09:01:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:7a11819601f5fa9ce2646417b1b0b4f0645021a39df5595c345f5d24e32ffad8","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":"2026-08-21T06:32:19.484+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":"2026-08-14T05:49:48.165288Z","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":"2026-08-14T05:49:48.365489Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1912.12530","last_updated":"2019-12-28T21:57:48Z","snapshot_observed_at":"2026-08-03T23:33:53.389271Z","submitted_at":"2019-12-28T21:57:48Z","title":"Reframing SU(1,1) interferometry","version":1},"cited_work":{"arxiv_id":"1912.12530","doi":null,"metadata_source":"pith","pith_arxiv_id":"1912.12530","snapshot_observed_at":"2026-08-14T05:49:48.365489Z","title":"Reframing SU(1,1) interferometry","venue":"quant-ph","work_id":"8123baef-42ec-4116-944e-1f29370c0cfe","year":2019},"citing_paper":{"arxiv_id":"1909.00827","last_updated":"2020-03-09T02:39:40Z","snapshot_observed_at":"2026-08-17T23:39:50.502754Z","submitted_at":"2019-09-02T18:40:17Z","title":"In situ characterization of linear-optical networks in randomized boson sampling","version":2},"reference_index":39,"source":"pdf_text","source_observed_at":"2026-08-14T05:49:48.165288Z"},"links":{"cited_paper":"/paper/1912.12530","citing_paper":"/paper/1909.00827"},"observation_digest":"sha256:1eb4c8628af8ec16f33e1b68e3e01811d25b6f795c3eb40ad9c7b0336ffba60d","observation_id":"4c228f16-c492-4484-9203-992e51fd574d","resolution":{"observed_at":"2026-08-14T05:49:48.370653Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/1912.12530/citation-record","integrity":"/paper/1912.12530/integrity","json":"/paper/1912.12530/citation-record.json","paper":"/paper/1912.12530"},"outbound":[],"paper":{"arxiv_id":"1912.12530","last_updated":"2019-12-28T21:57:48Z","latest_version":1,"primary_category":"quant-ph","snapshot_observed_at":"2026-08-03T23:33:53.389271Z","submitted_at":"2019-12-28T21:57:48Z","title":"Reframing SU(1,1) interferometry"},"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":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"thesis":"As of 21 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 1 inbound Pith citation observation for arXiv:1912.12530."}