{"as_of":"2026-08-16T22:21:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:ee4b5b73ca0e9d898052c0c829248b13c8b81b63d89e9716df5e57face72800e","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":"2026-08-16T06:30:59.297886+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":"2026-08-14T13:17:05.559430Z","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":"2026-08-14T13:17:06.115519Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1907.03208","last_updated":"2019-07-07T00:57:51Z","snapshot_observed_at":"2026-08-16T18:56:49.575885Z","submitted_at":"2019-07-07T00:57:51Z","title":"Braiding photonic topological zero modes","version":1},"cited_work":{"arxiv_id":"1907.03208","doi":null,"metadata_source":"pith","pith_arxiv_id":"1907.03208","snapshot_observed_at":"2026-08-14T13:17:06.115519Z","title":"Braiding photonic topological zero modes","venue":"physics.optics","work_id":"a533942d-542b-4d1a-8112-e5f7c74fe593","year":2019},"citing_paper":{"arxiv_id":"1908.05687","last_updated":"2020-05-02T18:36:04Z","snapshot_observed_at":"2026-08-16T04:44:21.023878Z","submitted_at":"2019-08-15T18:00:03Z","title":"Bound states in the continuum of higher-order topological insulators","version":4},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-14T13:17:05.559430Z"},"links":{"cited_paper":"/paper/1907.03208","citing_paper":"/paper/1908.05687"},"observation_digest":"sha256:7b503514b9f72f17b5c852c049dc1b1de99815da1dae42c7f419c10fde0714d5","observation_id":"5c5b5df7-602f-436b-8175-f50fff4bb463","resolution":{"observed_at":"2026-08-14T13:17:06.124382Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/1907.03208/citation-record","integrity":"/paper/1907.03208/integrity","json":"/paper/1907.03208/citation-record.json","paper":"/paper/1907.03208"},"outbound":[],"paper":{"arxiv_id":"1907.03208","last_updated":"2019-07-07T00:57:51Z","latest_version":1,"primary_category":"physics.optics","snapshot_observed_at":"2026-08-16T18:56:49.575885Z","submitted_at":"2019-07-07T00:57:51Z","title":"Braiding photonic topological zero modes"},"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":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+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:1907.03208."}