{"as_of":"2026-08-22T01:38:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:4886beb2cc45eeb471c5e8b195ee1e674542222e70764b7f152d336361ae736e","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":0,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":0,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-21T06:32:19.484+00:00","state":"measured"},{"denominator":0,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"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":[],"links":{"evidence":"/evidence","html":"/paper/1904.09765/citation-record","integrity":"/paper/1904.09765/integrity","json":"/paper/1904.09765/citation-record.json","paper":"/paper/1904.09765"},"outbound":[],"paper":{"arxiv_id":"1904.09765","last_updated":"2019-04-22T08:08:12Z","latest_version":1,"primary_category":"cs.SD","snapshot_observed_at":"2026-08-14T16:43:17.079488Z","submitted_at":"2019-04-22T08:08:12Z","title":"hf0: A hybrid pitch extraction method for multimodal voice"},"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":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"thesis":"As of 22 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 0 inbound Pith citation observations for arXiv:1904.09765."}