{"as_of":"2026-08-20T07:26:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:ef0b2f2d9831a68838e3d35aba0da93708717c252bc22ee8beeda2a7212ba1f9","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":3,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":3,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-20T06:33:59.587034+00:00","state":"measured"},{"denominator":3,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":3,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-06T14:40:22.788519Z","state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"arxiv_reference","source_observed_at":"2026-05-16T19:58:23.336468Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2406.01990","last_updated":"2024-06-04T06:10:52Z","snapshot_observed_at":"2026-08-16T13:46:26.203194Z","submitted_at":"2024-06-04T06:10:52Z","title":"50 GeV $\\pi^-$ in, nothing out: a sensitive probe of invisible $\\eta$ and $\\eta'$ decays with NA64h","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2406.01990","snapshot_observed_at":"2026-08-06T14:40:22.788519Z","title":"Dark-Sector Search via Pion-Produced η and η’ Mesons Decaying Invisibly in the NA64h Detector","venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2507.18254","last_updated":"2025-07-24T09:54:23Z","snapshot_observed_at":"2026-08-15T07:05:32.562213Z","submitted_at":"2025-07-24T09:54:23Z","title":"Axion Searches at the CERN SPS: From Their Dawn to Current Prospects","version":1},"reference_index":32,"source":"pdf_text","source_observed_at":"2026-08-06T14:40:22.788519Z"},"links":{"cited_paper":"/paper/2406.01990","citing_paper":"/paper/2507.18254"},"observation_digest":"sha256:d27d85403b0b19826cfbbf7e8c7a8504b1bc6785c2c38bd0cc92b29ede31eb72","observation_id":"37ffcb84-a46f-4568-942a-882f4ed98aef","resolution":{"observed_at":"2026-08-06T14:40:22.788519Z","resolver_source":null,"status":"malformed_identifier"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2406.01990","last_updated":"2024-06-04T06:10:52Z","snapshot_observed_at":"2026-08-16T13:46:26.203194Z","submitted_at":"2024-06-04T06:10:52Z","title":"50 GeV $\\pi^-$ in, nothing out: a sensitive probe of invisible $\\eta$ and $\\eta'$ decays with NA64h","version":1},"cited_work":{"arxiv_id":"2406.01990","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"2406.01990","snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":null,"venue":null,"work_id":"87144fec-1898-4ea5-a410-dd9178252b76","year":2024},"citing_paper":{"arxiv_id":"2512.20825","last_updated":"2026-04-17T08:29:50Z","snapshot_observed_at":"2026-08-19T11:13:09.418312Z","submitted_at":"2025-12-23T22:59:02Z","title":"Irreducible Constraints on Hadronically Interacting Sub-GeV Dark Matter","version":2},"reference_index":48,"source":"pdf_text","source_observed_at":"2026-05-16T19:54:44.766195Z"},"links":{"cited_paper":"/paper/2406.01990","citing_paper":"/paper/2512.20825"},"observation_digest":"sha256:77d629735c29d7577aa59ce4df9c68eed487845e69f83292ba94de9ae5e95606","observation_id":"b3726d40-2b75-4948-ad66-58019a3d92b4","resolution":{"observed_at":"2026-05-16T19:58:23.338123Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2406.01990","last_updated":"2024-06-04T06:10:52Z","snapshot_observed_at":"2026-08-16T13:46:26.203194Z","submitted_at":"2024-06-04T06:10:52Z","title":"50 GeV $\\pi^-$ in, nothing out: a sensitive probe of invisible $\\eta$ and $\\eta'$ decays with NA64h","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2406.01990","snapshot_observed_at":"2026-08-02T06:19:58.804177Z","title":null,"venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2607.12956","last_updated":"2026-07-19T14:28:52Z","snapshot_observed_at":"2026-08-15T09:14:50.957439Z","submitted_at":"2026-07-14T16:51:14Z","title":"Naturally quality-safe GeV axion with charm coupling","version":2},"reference_index":35,"source":"pdf_text","source_observed_at":"2026-08-02T06:19:58.804177Z"},"links":{"cited_paper":"/paper/2406.01990","citing_paper":"/paper/2607.12956"},"observation_digest":"sha256:7bc2b94963440aa07288ed5efc243ca8df2452d1d58146df60cb342e673fa615","observation_id":"d244e261-61d3-4939-9ad7-086b85f0793e","resolution":{"observed_at":"2026-08-02T06:19:58.804177Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"links":{"evidence":"/evidence","html":"/paper/2406.01990/citation-record","integrity":"/paper/2406.01990/integrity","json":"/paper/2406.01990/citation-record.json","paper":"/paper/2406.01990"},"outbound":[],"paper":{"arxiv_id":"2406.01990","last_updated":"2024-06-04T06:10:52Z","latest_version":1,"primary_category":"hep-ex","snapshot_observed_at":"2026-08-16T13:46:26.203194Z","submitted_at":"2024-06-04T06:10:52Z","title":"50 GeV $\\pi^-$ in, nothing out: a sensitive probe of invisible $\\eta$ and $\\eta'$ decays with NA64h"},"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":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"thesis":"As of 20 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 3 inbound Pith citation observations for arXiv:2406.01990."}