{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:OQIPJ55ZZ2HSY7F5VWVQTCXMQT","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":"6bb84a8ef456b32c3642da58d3625894265703dd353b8fb59fa3ee21522f658e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2010-04-27T16:20:58Z","title_canon_sha256":"528af7133bec117259c0fb1eea19049b0226eacc8f601515ca49bf695ae51ff6"},"schema_version":"1.0","source":{"id":"1004.4850","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.4850","created_at":"2026-05-18T02:24:15Z"},{"alias_kind":"arxiv_version","alias_value":"1004.4850v2","created_at":"2026-05-18T02:24:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.4850","created_at":"2026-05-18T02:24:15Z"},{"alias_kind":"pith_short_12","alias_value":"OQIPJ55ZZ2HS","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"OQIPJ55ZZ2HSY7F5","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"OQIPJ55Z","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:ff8f86d17482dc73ece4e0d3df201ab7f1d25f3dfabb8bc89912a251596c0295","target":"graph","created_at":"2026-05-18T02:24:15Z","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":"A local approximation for dynamic polarizability leads to a nonlocal functional for the long-range dispersion interaction energy via an imaginary-frequency integral. We analyze several local polarizability approximations and argue that the form underlying the construction of our recent van der Waals functional [O. A. Vydrov and T. Van Voorhis, Phys. Rev. Lett. 103, 063004 (2009)] is particularly well physically justified. Using this improved formula, we compute dynamic dipole polarizabilities and van der Waals C_6 coefficients for a set of atoms and molecules. Good agreement with the benchmark","authors_text":"Oleg A. Vydrov, Troy Van Voorhis","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2010-04-27T16:20:58Z","title":"Dispersion interactions from a local polarizability model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.4850","kind":"arxiv","version":2},"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:f0f781363ab15c78664295795bcfe3fc3513f92b13c48a0b6b6774cdb1957a65","target":"record","created_at":"2026-05-18T02:24:15Z","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":"6bb84a8ef456b32c3642da58d3625894265703dd353b8fb59fa3ee21522f658e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2010-04-27T16:20:58Z","title_canon_sha256":"528af7133bec117259c0fb1eea19049b0226eacc8f601515ca49bf695ae51ff6"},"schema_version":"1.0","source":{"id":"1004.4850","kind":"arxiv","version":2}},"canonical_sha256":"7410f4f7b9ce8f2c7cbdadab098aec84f04993f3a47574f7eee7d810518e8673","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7410f4f7b9ce8f2c7cbdadab098aec84f04993f3a47574f7eee7d810518e8673","first_computed_at":"2026-05-18T02:24:15.776838Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:24:15.776838Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dogpcCfG04nIswkR2r1F49Vgxpp81nJqcl+d9TbvcYYikF1dKmPOoeYBdAhhdKpyRghWpMNsd79OKR8x2aRTAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:24:15.777569Z","signed_message":"canonical_sha256_bytes"},"source_id":"1004.4850","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0f781363ab15c78664295795bcfe3fc3513f92b13c48a0b6b6774cdb1957a65","sha256:ff8f86d17482dc73ece4e0d3df201ab7f1d25f3dfabb8bc89912a251596c0295"],"state_sha256":"57b169ccafa099e0be5b672ee95a7673d45b2258d76f1e69184b1effeb4f829e"}