{"as_of":"2026-08-07T08:03:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:eb2f404482f7c08eb5eabffed94f23900fd062d9524ffa17050f3914b472a74f","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":"2026-08-07T06:34:17.273281+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":"2026-05-07T16:45:40.827298Z","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":"2026-05-11T23:36:13.838718Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2506.19003","last_updated":"2025-06-23T18:01:58Z","snapshot_observed_at":"2026-08-06T23:11:59.082510Z","submitted_at":"2025-06-23T18:01:58Z","title":"Fundamental Scaling Limit in Critical Quantum Metrology","version":1},"cited_work":{"arxiv_id":"2506.19003","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"2506.19003","snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":null,"venue":null,"work_id":"50e8ac08-9d3b-4041-a097-d8b9c77717ed","year":2025},"citing_paper":{"arxiv_id":"2604.25286","last_updated":"2026-04-28T06:48:58Z","snapshot_observed_at":"2026-08-02T05:52:55.012783Z","submitted_at":"2026-04-28T06:48:58Z","title":"Nonlinearity-enhanced Quantum Sensing in Discrete Time Crystal Probes","version":1},"reference_index":42,"source":"pdf_text","source_observed_at":"2026-05-07T16:45:40.827298Z"},"links":{"cited_paper":"/paper/2506.19003","citing_paper":"/paper/2604.25286"},"observation_digest":"sha256:c425fcdeabd32014eed504a42b47933e5ce4ffd4c31b4406aa16cd543e033145","observation_id":"1c96dd4e-d870-4cf2-bdb5-794bb0ae2f1d","resolution":{"observed_at":"2026-05-11T23:36:13.843181Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-07T06:34:17.273281+00:00","source":"crossref"},{"observed_at":"2026-08-07T06:34:11.927384+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/2506.19003/citation-record","integrity":"/paper/2506.19003/integrity","json":"/paper/2506.19003/citation-record.json","paper":"/paper/2506.19003"},"outbound":[],"paper":{"arxiv_id":"2506.19003","last_updated":"2025-06-23T18:01:58Z","latest_version":1,"primary_category":"quant-ph","snapshot_observed_at":"2026-08-06T23:11:59.082510Z","submitted_at":"2025-06-23T18:01:58Z","title":"Fundamental Scaling Limit in Critical Quantum Metrology"},"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":"2026-08-07T06:34:17.273281+00:00","source":"crossref"},{"observed_at":"2026-08-07T06:34:11.927384+00:00","source":"retraction_watch"}],"thesis":"As of 7 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 1 inbound Pith citation observation for arXiv:2506.19003."}