{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:XS2W5ZXPQDDAEABKGFOSW6VEHM","short_pith_number":"pith:XS2W5ZXP","schema_version":"1.0","canonical_sha256":"bcb56ee6ef80c602002a315d2b7aa43b2277b649ef42bd718f49689a23aff9c1","source":{"kind":"arxiv","id":"2605.22394","version":1},"attestation_state":"computed","paper":{"title":"Dynamic electron correlation energy for multireference wavefunction methods from one- and two-electron reduced density matrices","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Aleksandra Tucholska, Katarzyna Pernal, Micha{\\l} Hapka","submitted_at":"2026-05-21T12:28:15Z","abstract_excerpt":"Efficiently recovering dynamic correlation in strongly correlated systems without incurring prohibitive computational costs remains a central challenge in quantum chemistry. In this Perspective, we review and benchmark methods capable of recovering dynamic correlation for multireference wave functions exclusively from low-order reduced density matrices and densities. These approaches require at most the two-electron reduced density matrix of the reference wave function and fall into two categories: density functional theory (DFT)-based methods and purely ab initio multireference adiabatic conn"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2605.22394","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-05-21T12:28:15Z","cross_cats_sorted":[],"title_canon_sha256":"79e654df2338a30e56a346fe89dd8787c5d8de00fcc183a7ff7259815b31d76c","abstract_canon_sha256":"77e6d59dd7b206efdb5cfebe8b056a8b7564aef2909276889fabf8d269a6a70c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-22T01:04:41.367573Z","signature_b64":"dlTfqwr9v/X0cpOefPiyONltShquwRV4MuXVYwYyofRF+KXuME/Z+fPGJmVzaza5cAtsmGqrgqLE7jEsJuEaCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bcb56ee6ef80c602002a315d2b7aa43b2277b649ef42bd718f49689a23aff9c1","last_reissued_at":"2026-05-22T01:04:41.366911Z","signature_status":"signed_v1","first_computed_at":"2026-05-22T01:04:41.366911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dynamic electron correlation energy for multireference wavefunction methods from one- and two-electron reduced density matrices","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Aleksandra Tucholska, Katarzyna Pernal, Micha{\\l} Hapka","submitted_at":"2026-05-21T12:28:15Z","abstract_excerpt":"Efficiently recovering dynamic correlation in strongly correlated systems without incurring prohibitive computational costs remains a central challenge in quantum chemistry. In this Perspective, we review and benchmark methods capable of recovering dynamic correlation for multireference wave functions exclusively from low-order reduced density matrices and densities. These approaches require at most the two-electron reduced density matrix of the reference wave function and fall into two categories: density functional theory (DFT)-based methods and purely ab initio multireference adiabatic conn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.22394","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.22394/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2605.22394","created_at":"2026-05-22T01:04:41.367009+00:00"},{"alias_kind":"arxiv_version","alias_value":"2605.22394v1","created_at":"2026-05-22T01:04:41.367009+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.22394","created_at":"2026-05-22T01:04:41.367009+00:00"},{"alias_kind":"pith_short_12","alias_value":"XS2W5ZXPQDDA","created_at":"2026-05-22T01:04:41.367009+00:00"},{"alias_kind":"pith_short_16","alias_value":"XS2W5ZXPQDDAEABK","created_at":"2026-05-22T01:04:41.367009+00:00"},{"alias_kind":"pith_short_8","alias_value":"XS2W5ZXP","created_at":"2026-05-22T01:04:41.367009+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/XS2W5ZXPQDDAEABKGFOSW6VEHM","json":"https://pith.science/pith/XS2W5ZXPQDDAEABKGFOSW6VEHM.json","graph_json":"https://pith.science/api/pith-number/XS2W5ZXPQDDAEABKGFOSW6VEHM/graph.json","events_json":"https://pith.science/api/pith-number/XS2W5ZXPQDDAEABKGFOSW6VEHM/events.json","paper":"https://pith.science/paper/XS2W5ZXP"},"agent_actions":{"view_html":"https://pith.science/pith/XS2W5ZXPQDDAEABKGFOSW6VEHM","download_json":"https://pith.science/pith/XS2W5ZXPQDDAEABKGFOSW6VEHM.json","view_paper":"https://pith.science/paper/XS2W5ZXP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2605.22394&json=true","fetch_graph":"https://pith.science/api/pith-number/XS2W5ZXPQDDAEABKGFOSW6VEHM/graph.json","fetch_events":"https://pith.science/api/pith-number/XS2W5ZXPQDDAEABKGFOSW6VEHM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XS2W5ZXPQDDAEABKGFOSW6VEHM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XS2W5ZXPQDDAEABKGFOSW6VEHM/action/storage_attestation","attest_author":"https://pith.science/pith/XS2W5ZXPQDDAEABKGFOSW6VEHM/action/author_attestation","sign_citation":"https://pith.science/pith/XS2W5ZXPQDDAEABKGFOSW6VEHM/action/citation_signature","submit_replication":"https://pith.science/pith/XS2W5ZXPQDDAEABKGFOSW6VEHM/action/replication_record"}},"created_at":"2026-05-22T01:04:41.367009+00:00","updated_at":"2026-05-22T01:04:41.367009+00:00"}