{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:UNTWWSIWJCWEQKAULLAOP4OKTD","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":"f288f5c93cb91f7da00021ecc7990f65695d259680059a2f07a4b6827b6ed7de","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.other","submitted_at":"2004-04-23T06:42:04Z","title_canon_sha256":"109744724823e4c67b271eb439db15c5750e0d90d6a763086fa71a0af658006a"},"schema_version":"1.0","source":{"id":"cond-mat/0404559","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0404559","created_at":"2026-05-18T01:09:02Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0404559v1","created_at":"2026-05-18T01:09:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0404559","created_at":"2026-05-18T01:09:02Z"},{"alias_kind":"pith_short_12","alias_value":"UNTWWSIWJCWE","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"UNTWWSIWJCWEQKAU","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"UNTWWSIW","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:cfc3fe092d07e1b5da9cf8fdff7ce5e80dd4cfbef96fb6b81d11268752e5b808","target":"graph","created_at":"2026-05-18T01:09:02Z","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"},"paper":{"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.","authors_text":"J. E. Alvarellos, J. Jung, P. Garc\\'ia-Gonz\\'alez, R. W. Godby","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"","primary_cat":"cond-mat.other","submitted_at":"2004-04-23T06:42:04Z","title":"Assessment of density functional approximations: long-range correlations and self-interaction effects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0404559","kind":"arxiv","version":1},"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":"sha256:031cf61f7091f411890d2b275a10e3428a43e6677c2a8773c1a561bb7f14f7e4","target":"record","created_at":"2026-05-18T01:09:02Z","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":"f288f5c93cb91f7da00021ecc7990f65695d259680059a2f07a4b6827b6ed7de","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.other","submitted_at":"2004-04-23T06:42:04Z","title_canon_sha256":"109744724823e4c67b271eb439db15c5750e0d90d6a763086fa71a0af658006a"},"schema_version":"1.0","source":{"id":"cond-mat/0404559","kind":"arxiv","version":1}},"canonical_sha256":"a3676b491648ac4828145ac0e7f1ca98c44f233f202d74f6de5ee8282bd9fe2d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3676b491648ac4828145ac0e7f1ca98c44f233f202d74f6de5ee8282bd9fe2d","first_computed_at":"2026-05-18T01:09:02.357490Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:02.357490Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+5OEMnPe9hPCRbWznzgL5mBoHxE4WYT6shnXtPjhIjZiLI+B9P95ieGOFcnh2Oc9l65VS/14srGPe35TVJBvBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:02.358095Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0404559","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:031cf61f7091f411890d2b275a10e3428a43e6677c2a8773c1a561bb7f14f7e4","sha256:cfc3fe092d07e1b5da9cf8fdff7ce5e80dd4cfbef96fb6b81d11268752e5b808"],"state_sha256":"1a850a601ac8272ba9499ec85138a50ea5337f214df9e62b473a6f0daca4b3c8"}