{"as_of":"2026-08-16T21:36:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:2a99a3f74ed57fe99f268bee2e187fa71079d2d5cdc21db53033563f3fec5f2b","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":"2026-08-16T06:30:59.297886+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":"2026-08-15T15:15:58.080165Z","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":"2026-05-11T23:56:15.665930Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2103.07871","last_updated":"2021-04-20T14:44:59Z","snapshot_observed_at":"2026-08-16T18:39:04.722732Z","submitted_at":"2021-03-14T08:47:27Z","title":"The strange partner of the $Z_{c}$ structures in a coupled-channels model","version":2},"cited_work":{"arxiv_id":"2103.07871","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"2103.07871","snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":null,"venue":null,"work_id":"8a59dcff-384b-4efc-8a3f-20aeb176b51b","year":2021},"citing_paper":{"arxiv_id":"2604.25607","last_updated":"2026-04-28T13:11:21Z","snapshot_observed_at":"2026-08-12T16:14:26.393967Z","submitted_at":"2026-04-28T13:11:21Z","title":"Determination of the $Z_c(3900)$ and the $Z_{cs}(3985)$ states from joint analysis of experimental and lattice data","version":1},"reference_index":80,"source":"pdf_text","source_observed_at":"2026-05-07T15:58:57.306436Z"},"links":{"cited_paper":"/paper/2103.07871","citing_paper":"/paper/2604.25607"},"observation_digest":"sha256:e3f566e5bd4819561e5c23801f2c8f04a94da48471563267f88d06bca3d052aa","observation_id":"ee606581-862e-40ce-b2d0-395e8362261b","resolution":{"observed_at":"2026-05-11T23:56:15.669239Z","resolver_source":"arxiv_id","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"}},{"citation":{"cited_paper":{"arxiv_id":"2103.07871","last_updated":"2021-04-20T14:44:59Z","snapshot_observed_at":"2026-08-16T18:39:04.722732Z","submitted_at":"2021-03-14T08:47:27Z","title":"The strange partner of the $Z_{c}$ structures in a coupled-channels model","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2103.07871","snapshot_observed_at":"2026-08-15T15:15:58.080165Z","title":null,"venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2608.01237","last_updated":"2026-08-02T13:46:47Z","snapshot_observed_at":"2026-08-16T02:26:18.830515Z","submitted_at":"2026-08-02T13:46:47Z","title":"A femtoscopic tale of two $C$-parities: the $Z_c(3900)$ and the isovector partner of the $X(3872)$","version":1},"reference_index":64,"source":"pdf_text","source_observed_at":"2026-08-15T15:15:58.080165Z"},"links":{"cited_paper":"/paper/2103.07871","citing_paper":"/paper/2608.01237"},"observation_digest":"sha256:052026ce1f9970e583dffdec995f04e3ab56f9fdcb28f0e0dc6e3ccfc639b9bf","observation_id":"6beb7822-f166-44ac-8863-343b904cdce4","resolution":{"observed_at":"2026-08-15T15:15:58.080165Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"links":{"evidence":"/evidence","html":"/paper/2103.07871/citation-record","integrity":"/paper/2103.07871/integrity","json":"/paper/2103.07871/citation-record.json","paper":"/paper/2103.07871"},"outbound":[],"paper":{"arxiv_id":"2103.07871","last_updated":"2021-04-20T14:44:59Z","latest_version":2,"primary_category":"hep-ph","snapshot_observed_at":"2026-08-16T18:39:04.722732Z","submitted_at":"2021-03-14T08:47:27Z","title":"The strange partner of the $Z_{c}$ structures in a coupled-channels model"},"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 2 inbound Pith citation observations for arXiv:2103.07871."}