{"as_of":"2026-08-22T14:23:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:504ea70275ca167bb6f75371cce9061b6868e9a45bc5b68518a50e36e670d53b","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":2,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":2,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-22T06:32:14.747728+00:00","state":"measured"},{"denominator":2,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":2,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-10T21:19:48.835465Z","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":"2026-08-10T17:55:08.142734Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2405.03493","last_updated":"2024-06-13T08:40:14Z","snapshot_observed_at":"2026-08-16T13:55:02.327218Z","submitted_at":"2024-05-06T14:03:42Z","title":"Polarization-entangled photon pair generation from an epsilon-near-zero metasurface","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2405.03493","snapshot_observed_at":"2026-08-10T21:19:48.835465Z","title":"Polarization-entangled photon pair generation from an epsilon-near-zero metasurface,","venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2501.05516","last_updated":"2025-03-08T00:56:42Z","snapshot_observed_at":"2026-08-14T16:25:14.553801Z","submitted_at":"2025-01-09T19:00:08Z","title":"A simple model for entangled photon generation in resonant structures","version":3},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-10T21:19:48.835465Z"},"links":{"cited_paper":"/paper/2405.03493","citing_paper":"/paper/2501.05516"},"observation_digest":"sha256:003d0c2a21532a1853296a00924ef103488ab40f336e223f218c390bec79f8c3","observation_id":"0e534b48-d81d-463b-9f06-53f0c2c7e4c0","resolution":{"observed_at":"2026-08-10T21:19:48.835465Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2405.03493","last_updated":"2024-06-13T08:40:14Z","snapshot_observed_at":"2026-08-16T13:55:02.327218Z","submitted_at":"2024-05-06T14:03:42Z","title":"Polarization-entangled photon pair generation from an epsilon-near-zero metasurface","version":2},"cited_work":{"arxiv_id":"2405.03493","doi":null,"metadata_source":"pith","pith_arxiv_id":"2405.03493","snapshot_observed_at":"2026-08-10T17:55:08.142734Z","title":"Polarization-entangled photon pair generation from an epsilon-near-zero metasurface","venue":"physics.optics","work_id":"43006dec-bcf5-46af-bad4-26938b9254bd","year":2024},"citing_paper":{"arxiv_id":"2501.11850","last_updated":"2025-01-21T03:07:58Z","snapshot_observed_at":"2026-08-16T15:14:51.153598Z","submitted_at":"2025-01-21T03:07:58Z","title":"Two-photon Interference of Biphotons Emitted by Overlapping Resonances in Metasurfaces","version":1},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-08-10T17:55:07.946964Z"},"links":{"cited_paper":"/paper/2405.03493","citing_paper":"/paper/2501.11850"},"observation_digest":"sha256:1b24021198a1cb1dcb6f930232edf5483acfae2877a75c63fae614dfc8f6dbbc","observation_id":"ef3030a6-f525-4b96-9036-9eeadc778be4","resolution":{"observed_at":"2026-08-10T17:55:08.148228Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/2405.03493/citation-record","integrity":"/paper/2405.03493/integrity","json":"/paper/2405.03493/citation-record.json","paper":"/paper/2405.03493"},"outbound":[],"paper":{"arxiv_id":"2405.03493","last_updated":"2024-06-13T08:40:14Z","latest_version":2,"primary_category":"physics.optics","snapshot_observed_at":"2026-08-16T13:55:02.327218Z","submitted_at":"2024-05-06T14:03:42Z","title":"Polarization-entangled photon pair generation from an epsilon-near-zero metasurface"},"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":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"thesis":"As of 22 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:2405.03493."}