{"as_of":"2026-08-04T23:29:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:2ab202ad57e245239e673df3a921959a454d617180b93a378ccfbdf35c107e75","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":4,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":4,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-04T06:34:03.388597+00:00","state":"measured"},{"denominator":4,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":4,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-04T06:57:21.579911Z","state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"arxiv_reference","source_observed_at":"2026-05-10T13:10:26.572108Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2404.14194","last_updated":"2024-04-22T14:03:46Z","snapshot_observed_at":"2026-07-06T18:03:42.703304Z","submitted_at":"2024-04-22T14:03:46Z","title":"Optimal Multiparameter Metrology: The Quantum Compass Solution","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2404.14194","snapshot_observed_at":"2026-08-03T21:12:18.508433Z","title":null,"venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2511.16645","last_updated":"2026-08-03T13:46:43Z","snapshot_observed_at":"2026-08-04T22:31:09.361700Z","submitted_at":"2025-11-20T18:51:18Z","title":"Measurement incompatibility in Bayesian multiparameter quantum estimation","version":3},"reference_index":160,"source":"pdf_text","source_observed_at":"2026-08-03T21:12:18.508433Z"},"links":{"cited_paper":"/paper/2404.14194","citing_paper":"/paper/2511.16645"},"observation_digest":"sha256:c8f31ba2a4b0de661ed8fedeb03405412a5aeb857ac576d9a3813113f5c43ec2","observation_id":"63c2bbfd-b9d6-457d-8ebd-8201a64de7f5","resolution":{"observed_at":"2026-08-03T21:12:18.508433Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2404.14194","last_updated":"2024-04-22T14:03:46Z","snapshot_observed_at":"2026-07-06T18:03:42.703304Z","submitted_at":"2024-04-22T14:03:46Z","title":"Optimal Multiparameter Metrology: The Quantum Compass Solution","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2404.14194","snapshot_observed_at":"2026-08-04T06:57:21.579911Z","title":null,"venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2511.16645","last_updated":"2026-08-03T13:46:43Z","snapshot_observed_at":"2026-08-04T22:31:09.361700Z","submitted_at":"2025-11-20T18:51:18Z","title":"Measurement incompatibility in Bayesian multiparameter quantum estimation","version":4},"reference_index":160,"source":"pdf_text","source_observed_at":"2026-08-04T06:57:21.579911Z"},"links":{"cited_paper":"/paper/2404.14194","citing_paper":"/paper/2511.16645"},"observation_digest":"sha256:0cb20882b49b43d9944ef53accc69072d7f692064eabe3b731ce0c0b33c849bb","observation_id":"29bdf201-8416-42c6-b09d-16d8734da515","resolution":{"observed_at":"2026-08-04T06:57:21.579911Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2404.14194","last_updated":"2024-04-22T14:03:46Z","snapshot_observed_at":"2026-07-06T18:03:42.703304Z","submitted_at":"2024-04-22T14:03:46Z","title":"Optimal Multiparameter Metrology: The Quantum Compass Solution","version":1},"cited_work":{"arxiv_id":"2404.14194","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"2404.14194","snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":null,"venue":null,"work_id":"9d09aa27-3164-4e29-b4b8-e2cdcfa76790","year":2024},"citing_paper":{"arxiv_id":"2604.14298","last_updated":"2026-04-15T18:00:22Z","snapshot_observed_at":"2026-07-06T02:11:23.670680Z","submitted_at":"2026-04-15T18:00:22Z","title":"Precision Limits of Multiparameter Markovian-Noise Metrology","version":1},"reference_index":96,"source":"pdf_text","source_observed_at":"2026-05-10T13:08:56.238975Z"},"links":{"cited_paper":"/paper/2404.14194","citing_paper":"/paper/2604.14298"},"observation_digest":"sha256:c279f75190b49eefdfb7b957c4982fe29f8551961234d0190c71a94c79a094a7","observation_id":"8bcc1565-f3c9-4746-9bac-1a796da74d03","resolution":{"observed_at":"2026-05-10T13:10:26.574519Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-04T06:34:03.388597+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2404.14194","last_updated":"2024-04-22T14:03:46Z","snapshot_observed_at":"2026-07-06T18:03:42.703304Z","submitted_at":"2024-04-22T14:03:46Z","title":"Optimal Multiparameter Metrology: The Quantum Compass Solution","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2404.14194","snapshot_observed_at":"2026-08-02T02:50:21.485413Z","title":null,"venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2607.14231","last_updated":"2026-07-15T18:00:41Z","snapshot_observed_at":"2026-08-04T10:39:15.646258Z","submitted_at":"2026-07-15T18:00:41Z","title":"A Compass on the Quantum State Sphere: The Hopf Ansatz for Arbitrary Pure-State Optimization","version":1},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-02T02:50:21.485413Z"},"links":{"cited_paper":"/paper/2404.14194","citing_paper":"/paper/2607.14231"},"observation_digest":"sha256:cc2731c497d3a0ef46d942579da9da835d119cf66f9d2ef53e2d9a4bfa92579c","observation_id":"4ffc826d-2708-44c1-90d8-ae9ee85553d4","resolution":{"observed_at":"2026-08-02T02:50:21.485413Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"links":{"evidence":"/evidence","html":"/paper/2404.14194/citation-record","integrity":"/paper/2404.14194/integrity","json":"/paper/2404.14194/citation-record.json","paper":"/paper/2404.14194"},"outbound":[],"paper":{"arxiv_id":"2404.14194","last_updated":"2024-04-22T14:03:46Z","latest_version":1,"primary_category":"quant-ph","snapshot_observed_at":"2026-07-06T18:03:42.703304Z","submitted_at":"2024-04-22T14:03:46Z","title":"Optimal Multiparameter Metrology: The Quantum Compass Solution"},"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":"2026-08-04T06:34:03.388597+00:00","source":"crossref"},{"observed_at":"2026-08-04T06:33:57.428241+00:00","source":"retraction_watch"}],"thesis":"As of 4 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 4 inbound Pith citation observations for arXiv:2404.14194."}