{"as_of":"2026-08-19T03:31:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:a3501452c10ddbf9a026ea5d65b0b2a1aaff7c7c0f6b15da206bad87e4118999","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":"2026-08-18T06:34:40.430872+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/2111.06862/citation-record","integrity":"/paper/2111.06862/integrity","json":"/paper/2111.06862/citation-record.json","paper":"/paper/2111.06862"},"outbound":[],"paper":{"arxiv_id":"2111.06862","last_updated":"2022-08-18T10:59:46Z","latest_version":2,"primary_category":"cs.LG","snapshot_observed_at":"2026-08-18T23:05:20.859411Z","submitted_at":"2021-11-12T18:31:51Z","title":"Silicon Photonic Architecture for Training Deep Neural Networks with Direct Feedback Alignment"},"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":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"thesis":"As of 19 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 0 inbound Pith citation observations for arXiv:2111.06862."}