{"as_of":"2026-08-22T07:27:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:35605f33787b23fc5e35b4f5f50c58581422e108e0a755cebdd5f0b86aa3520f","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":"2026-08-22T06:32:14.747728+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":"2026-08-14T14:21:01.544495Z","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":"2026-05-18T15:36:34.496243Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"1907.09528","last_updated":"2019-12-24T22:09:29Z","snapshot_observed_at":"2026-08-18T16:36:09.467710Z","submitted_at":"2019-07-22T18:58:32Z","title":"Topological and subsystem codes on low-degree graphs with flag qubits","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1907.09528","snapshot_observed_at":"2026-08-14T14:21:01.544495Z","title":"Topological and subsystem codes on low-degree graphs with flag qubits,","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"1908.03579","last_updated":"2020-01-13T16:08:00Z","snapshot_observed_at":"2026-08-21T00:27:12.676196Z","submitted_at":"2019-08-09T18:00:06Z","title":"Fault-tolerant bosonic quantum error correction with the surface-GKP code","version":2},"reference_index":43,"source":"pdf_text","source_observed_at":"2026-08-14T14:21:01.544495Z"},"links":{"cited_paper":"/paper/1907.09528","citing_paper":"/paper/1908.03579"},"observation_digest":"sha256:93b56ed0bca0fde40dc6fb8f17f1c5f9df870e3220dfc7983f462b197a84639a","observation_id":"726ac998-845a-4b70-a34e-f1d71ef8402e","resolution":{"observed_at":"2026-08-14T14:21:01.544495Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1907.09528","last_updated":"2019-12-24T22:09:29Z","snapshot_observed_at":"2026-08-18T16:36:09.467710Z","submitted_at":"2019-07-22T18:58:32Z","title":"Topological and subsystem codes on low-degree graphs with flag qubits","version":2},"cited_work":{"arxiv_id":"1907.09528","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"1907.09528","snapshot_observed_at":"2026-06-05T21:23:00.469572Z","title":"Chamberland, G","venue":null,"work_id":"f33f2084-5757-4652-b94a-98749d250f73","year":2020},"citing_paper":{"arxiv_id":"2509.13528","last_updated":"2026-01-24T20:44:39Z","snapshot_observed_at":"2026-08-17T11:46:56.481906Z","submitted_at":"2025-09-16T20:48:53Z","title":"Evaluating the Limits of QAOA Parameter Transfer at High-Rounds on Sparse Ising Models With Geometrically Local Cubic Terms","version":2},"reference_index":50,"source":"pdf_text","source_observed_at":"2026-05-18T15:32:56.280828Z"},"links":{"cited_paper":"/paper/1907.09528","citing_paper":"/paper/2509.13528"},"observation_digest":"sha256:81730bcb0edd9b869588bf4b6d0ed2dbf16ae3ba14b7b77b0230ec792ae77ab0","observation_id":"33106121-1647-45fe-b96c-caf9e1acf590","resolution":{"observed_at":"2026-05-18T15:36:34.498953Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1907.09528","last_updated":"2019-12-24T22:09:29Z","snapshot_observed_at":"2026-08-18T16:36:09.467710Z","submitted_at":"2019-07-22T18:58:32Z","title":"Topological and subsystem codes on low-degree graphs with flag qubits","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1907.09528","snapshot_observed_at":"2026-08-01T21:35:58.155687Z","title":"Chamberland, G","venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"2607.16047","last_updated":"2026-07-17T15:20:57Z","snapshot_observed_at":"2026-08-15T13:25:46.859353Z","submitted_at":"2026-07-17T15:20:57Z","title":"Rigorous Time-dependent Hamiltonian Learning via Continuous Weak Measurements","version":1},"reference_index":52,"source":"pdf_text","source_observed_at":"2026-08-01T21:35:58.155687Z"},"links":{"cited_paper":"/paper/1907.09528","citing_paper":"/paper/2607.16047"},"observation_digest":"sha256:1f0658d1be445344cb3e7c711240a8586e8abb8acf5b37d0c54ec938103f1c8a","observation_id":"240d8a20-7a3b-4047-9b5a-fd648f0b224d","resolution":{"observed_at":"2026-08-01T21:35:58.155687Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1907.09528","last_updated":"2019-12-24T22:09:29Z","snapshot_observed_at":"2026-08-18T16:36:09.467710Z","submitted_at":"2019-07-22T18:58:32Z","title":"Topological and subsystem codes on low-degree graphs with flag qubits","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1907.09528","snapshot_observed_at":"2026-07-31T05:16:55.468520Z","title":"Chamberland, G","venue":null,"work_id":null,"year":2020},"citing_paper":{"arxiv_id":"2607.24947","last_updated":"2026-07-27T18:01:39Z","snapshot_observed_at":"2026-08-16T01:52:00.681967Z","submitted_at":"2026-07-27T18:01:39Z","title":"Realizing Error Suppression in Partially Fault-Tolerant Quantum Simulations with IBM Quantum Computers","version":1},"reference_index":35,"source":"pdf_text","source_observed_at":"2026-07-31T05:16:55.468520Z"},"links":{"cited_paper":"/paper/1907.09528","citing_paper":"/paper/2607.24947"},"observation_digest":"sha256:b934bacd7ffec4f62ad3a89ca82e4d228a95d645c1c0effcd967a6eef8794cc7","observation_id":"0c8218cf-f899-4bed-817a-c35dcf1e7f58","resolution":{"observed_at":"2026-07-31T05:16:55.468520Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"links":{"evidence":"/evidence","html":"/paper/1907.09528/citation-record","integrity":"/paper/1907.09528/integrity","json":"/paper/1907.09528/citation-record.json","paper":"/paper/1907.09528"},"outbound":[],"paper":{"arxiv_id":"1907.09528","last_updated":"2019-12-24T22:09:29Z","latest_version":2,"primary_category":"quant-ph","snapshot_observed_at":"2026-08-18T16:36:09.467710Z","submitted_at":"2019-07-22T18:58:32Z","title":"Topological and subsystem codes on low-degree graphs with flag qubits"},"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":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"thesis":"As of 22 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 4 inbound Pith citation observations for arXiv:1907.09528."}