{"as_of":"2026-08-09T07:01:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:91dd8fdc4ebe37aba39c3985d43527963c2ef1061c178dbf509dafdbd19c5dfe","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":"2026-08-09T06:31:02.800959+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":"2026-08-06T14:48:14.889273Z","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":"2026-08-06T14:48:15.161404Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1908.09078","last_updated":"2019-08-24T02:56:17Z","snapshot_observed_at":"2026-08-09T04:31:37.915323Z","submitted_at":"2019-08-24T02:56:17Z","title":"KL property of exponent $1/2$ of $\\ell_{2,0}$-norm and DC regularized factorizations for low-rank matrix recovery","version":1},"cited_work":{"arxiv_id":"1908.09078","doi":null,"metadata_source":"pith","pith_arxiv_id":"1908.09078","snapshot_observed_at":"2026-08-06T14:48:15.161404Z","title":"KL property of exponent $1/2$ of $\\ell_{2,0}$-norm and DC regularized factorizations for low-rank matrix recovery","venue":"math.OC","work_id":"2b2d0996-6e4b-470d-9aa0-4a0e92912d65","year":2019},"citing_paper":{"arxiv_id":"2507.18114","last_updated":"2025-08-05T14:45:20Z","snapshot_observed_at":"2026-08-09T04:30:42.295004Z","submitted_at":"2025-07-24T05:55:28Z","title":"Nonconvex Optimization Framework for Group-Sparse Feedback Linear-Quadratic Optimal Control: Penalty Approach","version":3},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-06T14:48:14.889273Z"},"links":{"cited_paper":"/paper/1908.09078","citing_paper":"/paper/2507.18114"},"observation_digest":"sha256:e00a0722c3bf4f35b8b48d49a8a04874c922dbacb7767f52b6b2a3d594300d29","observation_id":"6bc1b604-278d-400b-a2d3-56445e0b24ab","resolution":{"observed_at":"2026-08-06T14:48:15.165401Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/1908.09078/citation-record","integrity":"/paper/1908.09078/integrity","json":"/paper/1908.09078/citation-record.json","paper":"/paper/1908.09078"},"outbound":[],"paper":{"arxiv_id":"1908.09078","last_updated":"2019-08-24T02:56:17Z","latest_version":1,"primary_category":"math.OC","snapshot_observed_at":"2026-08-09T04:31:37.915323Z","submitted_at":"2019-08-24T02:56:17Z","title":"KL property of exponent $1/2$ of $\\ell_{2,0}$-norm and DC regularized factorizations for low-rank matrix recovery"},"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":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"thesis":"As of 9 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 1 inbound Pith citation observation for arXiv:1908.09078."}