{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:MKS4GSZXDKKWYCXZZ2KYUQBAFC","short_pith_number":"pith:MKS4GSZX","schema_version":"1.0","canonical_sha256":"62a5c34b371a956c0af9ce958a4020288cd2fd7281e79bfc9e269399aa270270","source":{"kind":"arxiv","id":"1310.4104","version":1},"attestation_state":"computed","paper":{"title":"Implementation of van der Waals Density Functional Approach to the Spin-Polarized System: Interaction Potential between Oxygen Molecules","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Ikutaro Hamada, Makoto Nakamura, Masao Obata, Tatsuki Oda","submitted_at":"2013-10-08T22:40:53Z","abstract_excerpt":"We propose a practical approach to spin-polarized systems within the van der Waals density functional (vdW-DF). The method was applied to a gas phase oxygen molecule and a parallel (H-type) pair of oxygen molecules. It was found that vdW-DF improves the equilibrium distance and binding energy. In particular, one type of vdW-DF can describe such systems reasonably well. The van der Waals interaction has been confirmed to have an energy comparable to the magnetic one, while emerging at a distance rather longer than the latter."},"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":"1310.4104","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-10-08T22:40:53Z","cross_cats_sorted":[],"title_canon_sha256":"7a8ee21472f643c6bbacb047cf57340f24baf8dd45accf32e432ea5f2ff24140","abstract_canon_sha256":"2bd60071a249f4ab582b6ae684d5f57506322d68d8951245ba0968060facfbc0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:10:25.051443Z","signature_b64":"ArTRExY/klfR5XMCG7+dhVP/MoazgQWeFUyiuHtpMpzUqa5qv39FVY96tq8hTd/xoOHgjk2YyV0TTGnDNlp3Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"62a5c34b371a956c0af9ce958a4020288cd2fd7281e79bfc9e269399aa270270","last_reissued_at":"2026-05-18T03:10:25.050680Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:10:25.050680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Implementation of van der Waals Density Functional Approach to the Spin-Polarized System: Interaction Potential between Oxygen Molecules","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Ikutaro Hamada, Makoto Nakamura, Masao Obata, Tatsuki Oda","submitted_at":"2013-10-08T22:40:53Z","abstract_excerpt":"We propose a practical approach to spin-polarized systems within the van der Waals density functional (vdW-DF). The method was applied to a gas phase oxygen molecule and a parallel (H-type) pair of oxygen molecules. It was found that vdW-DF improves the equilibrium distance and binding energy. In particular, one type of vdW-DF can describe such systems reasonably well. The van der Waals interaction has been confirmed to have an energy comparable to the magnetic one, while emerging at a distance rather longer than the latter."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.4104","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":"1310.4104","created_at":"2026-05-18T03:10:25.050779+00:00"},{"alias_kind":"arxiv_version","alias_value":"1310.4104v1","created_at":"2026-05-18T03:10:25.050779+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.4104","created_at":"2026-05-18T03:10:25.050779+00:00"},{"alias_kind":"pith_short_12","alias_value":"MKS4GSZXDKKW","created_at":"2026-05-18T12:27:52.871228+00:00"},{"alias_kind":"pith_short_16","alias_value":"MKS4GSZXDKKWYCXZ","created_at":"2026-05-18T12:27:52.871228+00:00"},{"alias_kind":"pith_short_8","alias_value":"MKS4GSZX","created_at":"2026-05-18T12:27:52.871228+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/MKS4GSZXDKKWYCXZZ2KYUQBAFC","json":"https://pith.science/pith/MKS4GSZXDKKWYCXZZ2KYUQBAFC.json","graph_json":"https://pith.science/api/pith-number/MKS4GSZXDKKWYCXZZ2KYUQBAFC/graph.json","events_json":"https://pith.science/api/pith-number/MKS4GSZXDKKWYCXZZ2KYUQBAFC/events.json","paper":"https://pith.science/paper/MKS4GSZX"},"agent_actions":{"view_html":"https://pith.science/pith/MKS4GSZXDKKWYCXZZ2KYUQBAFC","download_json":"https://pith.science/pith/MKS4GSZXDKKWYCXZZ2KYUQBAFC.json","view_paper":"https://pith.science/paper/MKS4GSZX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1310.4104&json=true","fetch_graph":"https://pith.science/api/pith-number/MKS4GSZXDKKWYCXZZ2KYUQBAFC/graph.json","fetch_events":"https://pith.science/api/pith-number/MKS4GSZXDKKWYCXZZ2KYUQBAFC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MKS4GSZXDKKWYCXZZ2KYUQBAFC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MKS4GSZXDKKWYCXZZ2KYUQBAFC/action/storage_attestation","attest_author":"https://pith.science/pith/MKS4GSZXDKKWYCXZZ2KYUQBAFC/action/author_attestation","sign_citation":"https://pith.science/pith/MKS4GSZXDKKWYCXZZ2KYUQBAFC/action/citation_signature","submit_replication":"https://pith.science/pith/MKS4GSZXDKKWYCXZZ2KYUQBAFC/action/replication_record"}},"created_at":"2026-05-18T03:10:25.050779+00:00","updated_at":"2026-05-18T03:10:25.050779+00:00"}