{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:2IK2ODWGZ257DUBXLM3O2FEVJB","short_pith_number":"pith:2IK2ODWG","schema_version":"1.0","canonical_sha256":"d215a70ec6cebbf1d0375b36ed1495485cbac21d8c8cac07205802f912751e69","source":{"kind":"arxiv","id":"1304.4192","version":2},"attestation_state":"computed","paper":{"title":"Multi-reference symmetry-projected variational approaches for ground and excited states of the one-dimensional Hubbard model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Carlos A. Jim\\'enez-Hoyos, Gustavo E. Scuseria, R. Rodr\\'iguez-Guzm\\'an, R. Schutski","submitted_at":"2013-04-15T18:13:44Z","abstract_excerpt":"We present a multi-reference configuration mixing scheme for describing ground and excited states, with well defined spin and space group symmetry quantum numbers, of the one-dimensional Hubbard model with nearest-neighbor hopping and periodic boundary conditions. Within this scheme, each state is expanded in terms of non-orthogonal and variationally determined symmetry-projected configurations. The results for lattices up to 30 and 50 sites compare well with the exact Lieb-Wu solutions as well as with results from other state-of-the-art approximations. In addition to spin-spin correlation fun"},"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":"1304.4192","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-04-15T18:13:44Z","cross_cats_sorted":[],"title_canon_sha256":"70aff37636102e87df6a618a6edc61fd747094e0f4267c917326b58e6aa2ad81","abstract_canon_sha256":"433c73e4b881960527c450392cb02c4c6f1da0ae62695ec4b5c5f24a645101bd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:19:45.375063Z","signature_b64":"ypfad/v5ibOwZvzIURsSS62mk8RTEBcV7ibI2TQzFCv8d+UzEwdEfZP6WrMerhi3szMrgnqM9WkUPUDf/WYpCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d215a70ec6cebbf1d0375b36ed1495485cbac21d8c8cac07205802f912751e69","last_reissued_at":"2026-05-18T03:19:45.374508Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:19:45.374508Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multi-reference symmetry-projected variational approaches for ground and excited states of the one-dimensional Hubbard model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Carlos A. Jim\\'enez-Hoyos, Gustavo E. Scuseria, R. Rodr\\'iguez-Guzm\\'an, R. Schutski","submitted_at":"2013-04-15T18:13:44Z","abstract_excerpt":"We present a multi-reference configuration mixing scheme for describing ground and excited states, with well defined spin and space group symmetry quantum numbers, of the one-dimensional Hubbard model with nearest-neighbor hopping and periodic boundary conditions. Within this scheme, each state is expanded in terms of non-orthogonal and variationally determined symmetry-projected configurations. The results for lattices up to 30 and 50 sites compare well with the exact Lieb-Wu solutions as well as with results from other state-of-the-art approximations. In addition to spin-spin correlation fun"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.4192","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1304.4192","created_at":"2026-05-18T03:19:45.374595+00:00"},{"alias_kind":"arxiv_version","alias_value":"1304.4192v2","created_at":"2026-05-18T03:19:45.374595+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.4192","created_at":"2026-05-18T03:19:45.374595+00:00"},{"alias_kind":"pith_short_12","alias_value":"2IK2ODWGZ257","created_at":"2026-05-18T12:27:30.460161+00:00"},{"alias_kind":"pith_short_16","alias_value":"2IK2ODWGZ257DUBX","created_at":"2026-05-18T12:27:30.460161+00:00"},{"alias_kind":"pith_short_8","alias_value":"2IK2ODWG","created_at":"2026-05-18T12:27:30.460161+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/2IK2ODWGZ257DUBXLM3O2FEVJB","json":"https://pith.science/pith/2IK2ODWGZ257DUBXLM3O2FEVJB.json","graph_json":"https://pith.science/api/pith-number/2IK2ODWGZ257DUBXLM3O2FEVJB/graph.json","events_json":"https://pith.science/api/pith-number/2IK2ODWGZ257DUBXLM3O2FEVJB/events.json","paper":"https://pith.science/paper/2IK2ODWG"},"agent_actions":{"view_html":"https://pith.science/pith/2IK2ODWGZ257DUBXLM3O2FEVJB","download_json":"https://pith.science/pith/2IK2ODWGZ257DUBXLM3O2FEVJB.json","view_paper":"https://pith.science/paper/2IK2ODWG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1304.4192&json=true","fetch_graph":"https://pith.science/api/pith-number/2IK2ODWGZ257DUBXLM3O2FEVJB/graph.json","fetch_events":"https://pith.science/api/pith-number/2IK2ODWGZ257DUBXLM3O2FEVJB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2IK2ODWGZ257DUBXLM3O2FEVJB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2IK2ODWGZ257DUBXLM3O2FEVJB/action/storage_attestation","attest_author":"https://pith.science/pith/2IK2ODWGZ257DUBXLM3O2FEVJB/action/author_attestation","sign_citation":"https://pith.science/pith/2IK2ODWGZ257DUBXLM3O2FEVJB/action/citation_signature","submit_replication":"https://pith.science/pith/2IK2ODWGZ257DUBXLM3O2FEVJB/action/replication_record"}},"created_at":"2026-05-18T03:19:45.374595+00:00","updated_at":"2026-05-18T03:19:45.374595+00:00"}