{"as_of":"2026-08-16T03:07:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:182d09e2e1c8bb527cc251c3ae390f9bfddc53ffdd2068cfa0b46aabd2e6d8c1","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":"2026-08-14T05:40:36.329199Z","state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"cited_works","source_observed_at":null,"state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1905.04965","last_updated":"2019-05-13T11:00:40Z","snapshot_observed_at":"2026-08-15T20:16:12.002992Z","submitted_at":"2019-05-13T11:00:40Z","title":"Geometric classification of non-Hermitian topological systems through the singularity ring","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1905.04965","snapshot_observed_at":"2026-08-14T05:40:36.329199Z","title":null,"venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"1909.00809","last_updated":"2019-09-02T17:55:43Z","snapshot_observed_at":"2026-08-15T16:09:30.214565Z","submitted_at":"2019-09-02T17:55:43Z","title":"Perspective on topological states of non-Hermitian lattices","version":1},"reference_index":53,"source":"pdf_text","source_observed_at":"2026-08-14T05:40:36.329199Z"},"links":{"cited_paper":"/paper/1905.04965","citing_paper":"/paper/1909.00809"},"observation_digest":"sha256:d1a8b620fac0967a5422ccf865d2835ec77672d18c97473b38d2c3071d7b26e2","observation_id":"006893bf-79fa-4ce0-bc46-e7540b229bae","resolution":{"observed_at":"2026-08-14T05:40:36.329199Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"links":{"evidence":"/evidence","html":"/paper/1905.04965/citation-record","integrity":"/paper/1905.04965/integrity","json":"/paper/1905.04965/citation-record.json","paper":"/paper/1905.04965"},"outbound":[],"paper":{"arxiv_id":"1905.04965","last_updated":"2019-05-13T11:00:40Z","latest_version":1,"primary_category":"cond-mat.mes-hall","snapshot_observed_at":"2026-08-15T20:16:12.002992Z","submitted_at":"2019-05-13T11:00:40Z","title":"Geometric classification of non-Hermitian topological systems through the singularity ring"},"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 16 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 1 inbound Pith citation observation for arXiv:1905.04965."}