{"as_of":"2026-08-15T22:15:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:1a8b673359f30f07d405951ae13e4f9a8683df4df07c536c36a2348e8ba1e835","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":"2026-08-15T06:32:42.880941+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":"2026-08-12T05:51:03.902642Z","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":"2026-08-12T06:16:15.957210Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2108.01007","last_updated":"2021-08-02T16:09:16Z","snapshot_observed_at":"2026-08-15T16:55:09.403878Z","submitted_at":"2021-08-02T16:09:16Z","title":"Temporal metamaterials with gain and loss","version":1},"cited_work":{"arxiv_id":"2108.01007","doi":"10.48550/arxiv.2108.01007","metadata_source":"pith","pith_arxiv_id":"2108.01007","snapshot_observed_at":"2026-08-12T06:16:15.957210Z","title":"Temporal metamaterials with gain and loss","venue":"physics.optics","work_id":"d802d706-eb13-4c46-a6fe-8766b301d7e5","year":2021},"citing_paper":{"arxiv_id":"2411.19847","last_updated":"2024-12-02T10:27:24Z","snapshot_observed_at":"2026-08-12T05:43:50.820749Z","submitted_at":"2024-11-29T17:05:43Z","title":"Emulating photonic time interfaces via smooth temporal transitions","version":2},"reference_index":47,"source":"pdf_text","source_observed_at":"2026-08-12T05:51:03.902642Z"},"links":{"cited_paper":"/paper/2108.01007","citing_paper":"/paper/2411.19847"},"observation_digest":"sha256:d880f30b197a1b193eaf6244b68497290dbed5be2cb21c87ee3e7a4c8de42bee","observation_id":"12367322-b05b-4428-b086-25326c544409","resolution":{"observed_at":"2026-08-12T05:51:04.179566Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-15T06:32:42.880941+00:00","source":"crossref"},{"observed_at":"2026-08-15T06:32:39.529945+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/2108.01007/citation-record","integrity":"/paper/2108.01007/integrity","json":"/paper/2108.01007/citation-record.json","paper":"/paper/2108.01007"},"outbound":[],"paper":{"arxiv_id":"2108.01007","last_updated":"2021-08-02T16:09:16Z","latest_version":1,"primary_category":"physics.optics","snapshot_observed_at":"2026-08-15T16:55:09.403878Z","submitted_at":"2021-08-02T16:09:16Z","title":"Temporal metamaterials with gain and loss"},"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":"2026-08-15T06:32:42.880941+00:00","source":"crossref"},{"observed_at":"2026-08-15T06:32:39.529945+00:00","source":"retraction_watch"}],"thesis":"As of 15 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 1 inbound Pith citation observation for arXiv:2108.01007."}