{"as_of":"2026-08-15T14:50:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:7f29849da61289da74a1e422c9d75b081a1a898889ea0a4db9ddcb1db9824d39","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":3,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":3,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-15T06:32:42.880941+00:00","state":"measured"},{"denominator":3,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":3,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-14T13:17:26.841223Z","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":"2026-08-14T10:15:35.574335Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1907.09040","last_updated":"2019-10-18T20:59:31Z","snapshot_observed_at":"2026-08-14T16:03:57.813444Z","submitted_at":"2019-07-21T21:49:11Z","title":"Unitary partitioning approach to the measurement problem in the Variational Quantum Eigensolver method","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1907.09040","snapshot_observed_at":"2026-08-14T13:17:26.841223Z","title":"Unitary partitioning approach to the measurement problem in the variational quantum eigensolver method,","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"1908.05628","last_updated":"2020-09-22T20:29:45Z","snapshot_observed_at":"2026-08-15T06:35:46.266006Z","submitted_at":"2019-08-15T16:36:41Z","title":"Nearly Optimal Measurement Scheduling for Partial Tomography of Quantum States","version":3},"reference_index":36,"source":"pdf_text","source_observed_at":"2026-08-14T13:17:26.841223Z"},"links":{"cited_paper":"/paper/1907.09040","citing_paper":"/paper/1908.05628"},"observation_digest":"sha256:da1761d58af6463e6e46f5aabfcb13060ea508f4d334e81e42214c7a4967f7bd","observation_id":"290b2c91-396d-4d21-ab32-8d1a350b664e","resolution":{"observed_at":"2026-08-14T13:17:26.841223Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1907.09040","last_updated":"2019-10-18T20:59:31Z","snapshot_observed_at":"2026-08-14T16:03:57.813444Z","submitted_at":"2019-07-21T21:49:11Z","title":"Unitary partitioning approach to the measurement problem in the Variational Quantum Eigensolver method","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1907.09040","snapshot_observed_at":"2026-08-14T11:07:19.251863Z","title":"Unitary partitioning approach to the measurement problem in the variational quantum eigensolver method,","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"1908.09836","last_updated":"2020-12-04T03:19:48Z","snapshot_observed_at":"2026-08-15T14:17:33.597388Z","submitted_at":"2019-08-26T18:00:01Z","title":"Variational Quantum Algorithm for Non-equilibrium Steady States","version":5},"reference_index":67,"source":"pdf_text","source_observed_at":"2026-08-14T11:07:19.251863Z"},"links":{"cited_paper":"/paper/1907.09040","citing_paper":"/paper/1908.09836"},"observation_digest":"sha256:d762c42c56574f7d824cc6db7d1b14b048c89817a5f8d09dec8435b657d4f052","observation_id":"9b93a866-853c-4889-88c2-e642e21dffe8","resolution":{"observed_at":"2026-08-14T11:07:19.251863Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1907.09040","last_updated":"2019-10-18T20:59:31Z","snapshot_observed_at":"2026-08-14T16:03:57.813444Z","submitted_at":"2019-07-21T21:49:11Z","title":"Unitary partitioning approach to the measurement problem in the Variational Quantum Eigensolver method","version":2},"cited_work":{"arxiv_id":"1907.09040","doi":null,"metadata_source":"pith","pith_arxiv_id":"1907.09040","snapshot_observed_at":"2026-08-14T10:15:35.574335Z","title":"Unitary partitioning approach to the measurement problem in the Variational Quantum Eigensolver method","venue":"quant-ph","work_id":"8efbac9b-928d-416b-910b-190cf9b6538b","year":2019},"citing_paper":{"arxiv_id":"1908.11857","last_updated":"2019-08-30T17:36:50Z","snapshot_observed_at":"2026-08-14T10:03:24.035041Z","submitted_at":"2019-08-30T17:36:50Z","title":"$O(N^3)$ Measurement Cost for Variational Quantum Eigensolver on Molecular Hamiltonians","version":1},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-14T10:15:35.297706Z"},"links":{"cited_paper":"/paper/1907.09040","citing_paper":"/paper/1908.11857"},"observation_digest":"sha256:86f75e2fc1f76518190090b2b94ca3cfa6b19aeb0502402f376508a7e91d0881","observation_id":"f5050558-6211-4808-aa98-789e0b9cacb1","resolution":{"observed_at":"2026-08-14T10:15:35.579274Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-15T06:32:42.880941+00:00","source":"crossref"},{"observed_at":"2026-08-15T06:32:39.529945+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/1907.09040/citation-record","integrity":"/paper/1907.09040/integrity","json":"/paper/1907.09040/citation-record.json","paper":"/paper/1907.09040"},"outbound":[],"paper":{"arxiv_id":"1907.09040","last_updated":"2019-10-18T20:59:31Z","latest_version":2,"primary_category":"quant-ph","snapshot_observed_at":"2026-08-14T16:03:57.813444Z","submitted_at":"2019-07-21T21:49:11Z","title":"Unitary partitioning approach to the measurement problem in the Variational Quantum Eigensolver 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":"2026-08-15T06:32:42.880941+00:00","source":"crossref"},{"observed_at":"2026-08-15T06:32:39.529945+00:00","source":"retraction_watch"}],"thesis":"As of 15 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 3 inbound Pith citation observations for arXiv:1907.09040."}