{"as_of":"2026-08-17T13:27:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:3f2c0d8d9fbc978e7cc434ddee8ae7af2303c10a47707a6ec1af1925bbe86634","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":"2026-08-17T06:30:58.91139+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":"2026-08-14T10:10:59.855958Z","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":"2026-08-14T05:59:55.932849Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1607.04118","last_updated":"2018-03-05T22:49:41Z","snapshot_observed_at":"2026-08-14T21:48:24.109545Z","submitted_at":"2016-07-14T13:15:07Z","title":"Algebraic method for group classification of (1+1)-dimensional linear Schr\\\"odinger equations","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1607.04118","snapshot_observed_at":"2026-08-14T10:10:59.855958Z","title":null,"venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"1909.00036","last_updated":"2019-08-30T18:54:43Z","snapshot_observed_at":"2026-08-17T01:46:01.302478Z","submitted_at":"2019-08-30T18:54:43Z","title":"Equivalence groupoid of a class of general Burgers-Korteweg-de Vries equations with space-dependent coefficients","version":1},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-14T10:10:59.855958Z"},"links":{"cited_paper":"/paper/1607.04118","citing_paper":"/paper/1909.00036"},"observation_digest":"sha256:2760aaaffc6d0c4166122c1928ea047804836587224217a3c24736c3780aef68","observation_id":"2557a784-1535-4e21-9460-1a1bbb8152c0","resolution":{"observed_at":"2026-08-14T10:10:59.855958Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1607.04118","last_updated":"2018-03-05T22:49:41Z","snapshot_observed_at":"2026-08-14T21:48:24.109545Z","submitted_at":"2016-07-14T13:15:07Z","title":"Algebraic method for group classification of (1+1)-dimensional linear Schr\\\"odinger equations","version":2},"cited_work":{"arxiv_id":"1607.04118","doi":null,"metadata_source":"pith","pith_arxiv_id":"1607.04118","snapshot_observed_at":"2026-08-14T05:59:55.932849Z","title":"Algebraic method for group classification of (1+1)-dimensional linear Schr\\\"odinger equations","venue":"math-ph","work_id":"5ebdc434-9bd0-426e-b5d2-969bdd7268f5","year":2016},"citing_paper":{"arxiv_id":"1909.00477","last_updated":"2019-09-01T21:41:02Z","snapshot_observed_at":"2026-08-17T07:40:57.853007Z","submitted_at":"2019-09-01T21:41:02Z","title":"Differential invariants for a class of diffusion equations","version":1},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-14T05:59:55.801072Z"},"links":{"cited_paper":"/paper/1607.04118","citing_paper":"/paper/1909.00477"},"observation_digest":"sha256:24da3c8b48a352faf2c00e6e9b2e2fbd3db7855f52833c8760c0ad91b2c8feb6","observation_id":"751fa6eb-7081-48d3-a8d1-0824739cc0af","resolution":{"observed_at":"2026-08-14T05:59:55.936892Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-17T06:30:58.91139+00:00","source":"crossref"},{"observed_at":"2026-08-17T06:30:54.323127+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/1607.04118/citation-record","integrity":"/paper/1607.04118/integrity","json":"/paper/1607.04118/citation-record.json","paper":"/paper/1607.04118"},"outbound":[],"paper":{"arxiv_id":"1607.04118","last_updated":"2018-03-05T22:49:41Z","latest_version":2,"primary_category":"math-ph","snapshot_observed_at":"2026-08-14T21:48:24.109545Z","submitted_at":"2016-07-14T13:15:07Z","title":"Algebraic method for group classification of (1+1)-dimensional linear Schr\\\"odinger equations"},"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":"2026-08-17T06:30:58.91139+00:00","source":"crossref"},{"observed_at":"2026-08-17T06:30:54.323127+00:00","source":"retraction_watch"}],"thesis":"As of 17 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:1607.04118."}