{"as_of":"2026-08-12T06:51:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:0dd4e866ff42a5924f97f929d764bf6adf92e1c42deaa32bbb6ce5304a7b30be","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":"2026-08-12T06:34:41.77262+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":"2026-08-08T11:52:01.836212Z","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":"2026-08-08T11:52:02.514143Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2305.07896","last_updated":"2023-05-13T11:33:26Z","snapshot_observed_at":"2026-08-09T23:57:44.204634Z","submitted_at":"2023-05-13T11:33:26Z","title":"Gradient Impedance Matching Layers Enable Broadband Water-Air Sound Transmission","version":1},"cited_work":{"arxiv_id":"2305.07896","doi":null,"metadata_source":"pith","pith_arxiv_id":"2305.07896","snapshot_observed_at":"2026-08-08T11:52:02.514143Z","title":"Gradient Impedance Matching Layers Enable Broadband Water-Air Sound Transmission","venue":"physics.app-ph","work_id":"7eb97515-3b6b-46e0-a230-db5e9b8a7816","year":2023},"citing_paper":{"arxiv_id":"2502.07723","last_updated":"2025-02-11T17:37:13Z","snapshot_observed_at":"2026-08-09T16:50:43.437671Z","submitted_at":"2025-02-11T17:37:13Z","title":"Total acoustic transmission between fluids using a solid material with emphasis on the air-water interface","version":1},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-08T11:52:01.836212Z"},"links":{"cited_paper":"/paper/2305.07896","citing_paper":"/paper/2502.07723"},"observation_digest":"sha256:b992fe3cfbc00a5edf65d6dcc346dd7aff7be1ce81f4c4aed1cc6abb3b0c33a8","observation_id":"3be84c2f-c6ba-47f6-af01-944a1638b34d","resolution":{"observed_at":"2026-08-08T11:52:02.521636Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-12T06:34:41.77262+00:00","source":"crossref"},{"observed_at":"2026-08-12T06:34:36.333875+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/2305.07896/citation-record","integrity":"/paper/2305.07896/integrity","json":"/paper/2305.07896/citation-record.json","paper":"/paper/2305.07896"},"outbound":[],"paper":{"arxiv_id":"2305.07896","last_updated":"2023-05-13T11:33:26Z","latest_version":1,"primary_category":"physics.app-ph","snapshot_observed_at":"2026-08-09T23:57:44.204634Z","submitted_at":"2023-05-13T11:33:26Z","title":"Gradient Impedance Matching Layers Enable Broadband Water-Air Sound Transmission"},"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":"2026-08-12T06:34:41.77262+00:00","source":"crossref"},{"observed_at":"2026-08-12T06:34:36.333875+00:00","source":"retraction_watch"}],"thesis":"As of 12 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 1 inbound Pith citation observation for arXiv:2305.07896."}