{"as_of":"2026-08-11T06:09:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:51c1e75b2f1eedd08328fc5e27bd5bcd1f425fa8da185f756a932e67d68d128a","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":2,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":2,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-10T06:31:04.303077+00:00","state":"measured"},{"denominator":2,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":2,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-06T01:04:27.451790Z","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":"2026-08-06T01:02:01.721634Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1807.01852","last_updated":"2019-03-07T02:36:44Z","snapshot_observed_at":"2026-07-06T06:48:29.164157Z","submitted_at":"2018-07-05T05:53:21Z","title":"Efficient online quantum state estimation using a matrix-exponentiated gradient method","version":2},"cited_work":{"arxiv_id":"1807.01852","doi":null,"metadata_source":"pith","pith_arxiv_id":"1807.01852","snapshot_observed_at":"2026-08-06T01:02:01.721634Z","title":"Efficient online quantum state estimation using a matrix-exponentiated gradient method","venue":"quant-ph","work_id":"8640db7e-70c6-47df-af3f-a0d8ed35a73d","year":2018},"citing_paper":{"arxiv_id":"2508.03993","last_updated":"2025-08-06T00:52:29Z","snapshot_observed_at":"2026-08-07T08:39:30.908980Z","submitted_at":"2025-08-06T00:52:29Z","title":"Thermalization with partial information","version":1},"reference_index":74,"source":"arxiv_source","source_observed_at":"2026-08-06T01:01:47.876462Z"},"links":{"cited_paper":"/paper/1807.01852","citing_paper":"/paper/2508.03993"},"observation_digest":"sha256:4c34ee49e2f1a2338bbca8e3928e0098963f9cd921656ada72318d67611629b8","observation_id":"0982d132-e839-4a4b-8a2b-affb8e82e44b","resolution":{"observed_at":"2026-08-06T01:02:01.829739Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-10T06:31:04.303077+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-10T06:31:04.303077+00:00","source":"crossref"},{"observed_at":"2026-08-10T06:30:57.382061+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1807.01852","last_updated":"2019-03-07T02:36:44Z","snapshot_observed_at":"2026-07-06T06:48:29.164157Z","submitted_at":"2018-07-05T05:53:21Z","title":"Efficient online quantum state estimation using a matrix-exponentiated gradient method","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1807.01852","snapshot_observed_at":"2026-08-06T01:04:27.451790Z","title":"Youssry , author C","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"2508.03994","last_updated":"2025-08-06T00:52:30Z","snapshot_observed_at":"2026-08-06T01:03:49.847664Z","submitted_at":"2025-08-06T00:52:30Z","title":"Maximum channel entropy principle and microcanonical channels","version":1},"reference_index":70,"source":"arxiv_source","source_observed_at":"2026-08-06T01:04:27.451790Z"},"links":{"cited_paper":"/paper/1807.01852","citing_paper":"/paper/2508.03994"},"observation_digest":"sha256:57a5ccd9fd590fc28962c66b7191c2ab71676d1977e102c5c5ea117a754fcb3c","observation_id":"59fc552e-141a-4668-bd14-1a113b1c8f53","resolution":{"observed_at":"2026-08-06T01:04:27.451790Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"links":{"evidence":"/evidence","html":"/paper/1807.01852/citation-record","integrity":"/paper/1807.01852/integrity","json":"/paper/1807.01852/citation-record.json","paper":"/paper/1807.01852"},"outbound":[],"paper":{"arxiv_id":"1807.01852","last_updated":"2019-03-07T02:36:44Z","latest_version":2,"primary_category":"quant-ph","snapshot_observed_at":"2026-07-06T06:48:29.164157Z","submitted_at":"2018-07-05T05:53:21Z","title":"Efficient online quantum state estimation using a matrix-exponentiated gradient method"},"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":"2026-08-10T06:31:04.303077+00:00","source":"crossref"},{"observed_at":"2026-08-10T06:30:57.382061+00:00","source":"retraction_watch"}],"thesis":"As of 11 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:1807.01852."}