{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:LKNHTN5ZCQSJW24FEX75URNP7B","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"49b26ee9700e1c5d9ff7297de5feadadaeb28d92d93922af51e62dd602403f87","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-01-03T21:35:56Z","title_canon_sha256":"76888d3dc34c803278c76b3c80e2c3bf67afd57c3c5bd3fbcad8c2d5bcb78a6f"},"schema_version":"1.0","source":{"id":"2101.00708","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.00708","created_at":"2026-07-05T03:22:33Z"},{"alias_kind":"arxiv_version","alias_value":"2101.00708v3","created_at":"2026-07-05T03:22:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.00708","created_at":"2026-07-05T03:22:33Z"},{"alias_kind":"pith_short_12","alias_value":"LKNHTN5ZCQSJ","created_at":"2026-07-05T03:22:33Z"},{"alias_kind":"pith_short_16","alias_value":"LKNHTN5ZCQSJW24F","created_at":"2026-07-05T03:22:33Z"},{"alias_kind":"pith_short_8","alias_value":"LKNHTN5Z","created_at":"2026-07-05T03:22:33Z"}],"graph_snapshots":[{"event_id":"sha256:243935da4d277cca9310b196ecdbf46268d1c5322ce4a45671f4dfdaa306f016","target":"graph","created_at":"2026-07-05T03:22:33Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2101.00708/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Local three- and four-point correlators yield important insight into strongly correlated systems and have many applications. However, the nonperturbative, accurate computation of multipoint correlators is challenging, particularly in the real-frequency domain for systems at low temperatures. In the accompanying paper, we introduce generalized spectral representations for multipoint correlators. Here, we develop a numerical renormalization group (NRG) approach, capable of efficiently evaluating these spectral representations, to compute local three- and four-point correlators of quantum impurit","authors_text":"Fabian B. Kugler, Jan von Delft, Seung-Sup B. Lee","cross_cats":["cond-mat.mes-hall","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-01-03T21:35:56Z","title":"Computing local multipoint correlators using the numerical renormalization group"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.00708","kind":"arxiv","version":3},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:2741de0402430aea2dfe87ebb37ab2c84bcda42c02223aaa203b6192f1da942e","target":"record","created_at":"2026-07-05T03:22:33Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"49b26ee9700e1c5d9ff7297de5feadadaeb28d92d93922af51e62dd602403f87","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-01-03T21:35:56Z","title_canon_sha256":"76888d3dc34c803278c76b3c80e2c3bf67afd57c3c5bd3fbcad8c2d5bcb78a6f"},"schema_version":"1.0","source":{"id":"2101.00708","kind":"arxiv","version":3}},"canonical_sha256":"5a9a79b7b914249b6b8525ffda45aff871d7684c9716fa8fe88525e763b57264","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5a9a79b7b914249b6b8525ffda45aff871d7684c9716fa8fe88525e763b57264","first_computed_at":"2026-07-05T03:22:33.639112Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:22:33.639112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ktYHnFykJwimF6wIy5rCZop8+anq9HCXPJJMaeqJJedGt273hnNlnQWkPVKoUt8pY9jBkIJqlg1pNsA/Q8PxBg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:22:33.639678Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.00708","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2741de0402430aea2dfe87ebb37ab2c84bcda42c02223aaa203b6192f1da942e","sha256:243935da4d277cca9310b196ecdbf46268d1c5322ce4a45671f4dfdaa306f016"],"state_sha256":"a9e863124cc9a3960feef1c06a81e6aa77a12ed6b888b8048a045fe72148b2c1"}