{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:UNTWWSIWJCWEQKAULLAOP4OKTD","short_pith_number":"pith:UNTWWSIW","schema_version":"1.0","canonical_sha256":"a3676b491648ac4828145ac0e7f1ca98c44f233f202d74f6de5ee8282bd9fe2d","source":{"kind":"arxiv","id":"cond-mat/0404559","version":1},"attestation_state":"computed","paper":{"title":"Assessment of density functional approximations: long-range correlations and self-interaction effects","license":"","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.other","authors_text":"J. E. Alvarellos, J. Jung, P. Garc\\'ia-Gonz\\'alez, R. W. Godby","submitted_at":"2004-04-23T06:42:04Z","abstract_excerpt":"The complex nature of electron-electron correlations is made manifest in the very simple but non-trivial problem of two electrons confined within a sphere. The description of highly non-local correlation and self-interaction effects by widely used local and semi-local exchange-correlation energy density functionals is shown to be unsatisfactory in most cases. Even the best such functionals exhibit significant errors in the Kohn-Sham potentials and density profiles."},"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":"cond-mat/0404559","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.other","submitted_at":"2004-04-23T06:42:04Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"109744724823e4c67b271eb439db15c5750e0d90d6a763086fa71a0af658006a","abstract_canon_sha256":"f288f5c93cb91f7da00021ecc7990f65695d259680059a2f07a4b6827b6ed7de"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:02.358095Z","signature_b64":"+5OEMnPe9hPCRbWznzgL5mBoHxE4WYT6shnXtPjhIjZiLI+B9P95ieGOFcnh2Oc9l65VS/14srGPe35TVJBvBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3676b491648ac4828145ac0e7f1ca98c44f233f202d74f6de5ee8282bd9fe2d","last_reissued_at":"2026-05-18T01:09:02.357490Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:02.357490Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Assessment of density functional approximations: long-range correlations and self-interaction effects","license":"","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.other","authors_text":"J. E. Alvarellos, J. Jung, P. Garc\\'ia-Gonz\\'alez, R. W. Godby","submitted_at":"2004-04-23T06:42:04Z","abstract_excerpt":"The complex nature of electron-electron correlations is made manifest in the very simple but non-trivial problem of two electrons confined within a sphere. The description of highly non-local correlation and self-interaction effects by widely used local and semi-local exchange-correlation energy density functionals is shown to be unsatisfactory in most cases. Even the best such functionals exhibit significant errors in the Kohn-Sham potentials and density profiles."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0404559","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":""},"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":"cond-mat/0404559","created_at":"2026-05-18T01:09:02.357576+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0404559v1","created_at":"2026-05-18T01:09:02.357576+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0404559","created_at":"2026-05-18T01:09:02.357576+00:00"},{"alias_kind":"pith_short_12","alias_value":"UNTWWSIWJCWE","created_at":"2026-05-18T12:25:52.687210+00:00"},{"alias_kind":"pith_short_16","alias_value":"UNTWWSIWJCWEQKAU","created_at":"2026-05-18T12:25:52.687210+00:00"},{"alias_kind":"pith_short_8","alias_value":"UNTWWSIW","created_at":"2026-05-18T12:25:52.687210+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/UNTWWSIWJCWEQKAULLAOP4OKTD","json":"https://pith.science/pith/UNTWWSIWJCWEQKAULLAOP4OKTD.json","graph_json":"https://pith.science/api/pith-number/UNTWWSIWJCWEQKAULLAOP4OKTD/graph.json","events_json":"https://pith.science/api/pith-number/UNTWWSIWJCWEQKAULLAOP4OKTD/events.json","paper":"https://pith.science/paper/UNTWWSIW"},"agent_actions":{"view_html":"https://pith.science/pith/UNTWWSIWJCWEQKAULLAOP4OKTD","download_json":"https://pith.science/pith/UNTWWSIWJCWEQKAULLAOP4OKTD.json","view_paper":"https://pith.science/paper/UNTWWSIW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0404559&json=true","fetch_graph":"https://pith.science/api/pith-number/UNTWWSIWJCWEQKAULLAOP4OKTD/graph.json","fetch_events":"https://pith.science/api/pith-number/UNTWWSIWJCWEQKAULLAOP4OKTD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UNTWWSIWJCWEQKAULLAOP4OKTD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UNTWWSIWJCWEQKAULLAOP4OKTD/action/storage_attestation","attest_author":"https://pith.science/pith/UNTWWSIWJCWEQKAULLAOP4OKTD/action/author_attestation","sign_citation":"https://pith.science/pith/UNTWWSIWJCWEQKAULLAOP4OKTD/action/citation_signature","submit_replication":"https://pith.science/pith/UNTWWSIWJCWEQKAULLAOP4OKTD/action/replication_record"}},"created_at":"2026-05-18T01:09:02.357576+00:00","updated_at":"2026-05-18T01:09:02.357576+00:00"}