{"as_of":"2026-08-21T06:53:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:c4ebab06dcc23135f2f8024c6ba8ec25ae2437c99776b4daa4986b9d0ebe9b9d","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":"2026-08-21T06:32:19.484+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":"2026-08-15T18:46:11.461653Z","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":"2026-08-15T18:46:13.006961Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2106.09028","last_updated":"2022-06-13T19:14:23Z","snapshot_observed_at":"2026-08-16T18:16:37.095164Z","submitted_at":"2021-06-16T18:00:00Z","title":"Exponential Error Convergence in Data Classification with Optimized Random Features: Acceleration by Quantum Machine Learning","version":2},"cited_work":{"arxiv_id":"2106.09028","doi":null,"metadata_source":"pith","pith_arxiv_id":"2106.09028","snapshot_observed_at":"2026-08-15T18:46:13.006961Z","title":"Exponential Error Convergence in Data Classification with Optimized Random Features: Acceleration by Quantum Machine Learning","venue":"quant-ph","work_id":"9e90b7f2-8512-43ad-8691-b165dfca2bc9","year":2021},"citing_paper":{"arxiv_id":"2506.18979","last_updated":"2025-06-23T18:00:02Z","snapshot_observed_at":"2026-08-16T15:24:50.505072Z","submitted_at":"2025-06-23T18:00:02Z","title":"Transversal Surface-Code Game Powered by Neutral Atoms","version":1},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-15T18:46:11.461653Z"},"links":{"cited_paper":"/paper/2106.09028","citing_paper":"/paper/2506.18979"},"observation_digest":"sha256:564209532854c506ae8dae9982b5d69488636a1e165d43dba0c77a44026b2c93","observation_id":"2ceafc9b-7696-4a24-8530-9a3b8db126ba","resolution":{"observed_at":"2026-08-15T18:46:13.011407Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"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"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/2106.09028/citation-record","integrity":"/paper/2106.09028/integrity","json":"/paper/2106.09028/citation-record.json","paper":"/paper/2106.09028"},"outbound":[],"paper":{"arxiv_id":"2106.09028","last_updated":"2022-06-13T19:14:23Z","latest_version":2,"primary_category":"quant-ph","snapshot_observed_at":"2026-08-16T18:16:37.095164Z","submitted_at":"2021-06-16T18:00:00Z","title":"Exponential Error Convergence in Data Classification with Optimized Random Features: Acceleration by Quantum Machine Learning"},"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 21 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 1 inbound Pith citation observation for arXiv:2106.09028."}