{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:C7AON6CZQAZJOK6IJXXDNHGAUW","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":"90d399aedc78a84f97d1e511699e0fc9173583d130b87ad1aa0eff4d77138a9e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2009-09-30T04:56:41Z","title_canon_sha256":"fc72a877cd2d6d0029a19eb27e7323b395ba381266c340c60c6b1b7a05e8ac37"},"schema_version":"1.0","source":{"id":"0909.5491","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.5491","created_at":"2026-05-18T02:11:36Z"},{"alias_kind":"arxiv_version","alias_value":"0909.5491v1","created_at":"2026-05-18T02:11:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.5491","created_at":"2026-05-18T02:11:36Z"},{"alias_kind":"pith_short_12","alias_value":"C7AON6CZQAZJ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"C7AON6CZQAZJOK6I","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"C7AON6CZ","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:af149dd62745b191987afde45bdac40e11ca17a8a0081453b5a20d1293ed9fb0","target":"graph","created_at":"2026-05-18T02:11:36Z","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 constrained electron density method of embedding a Kohn-Sham system in a substrate system (first described by P. Cortona, Phys. Rev. B {\\bf 44}, 8454 (1991) and T.A. Wesolowski and A. Warshel, J. Phys. Chem {\\bf 97}, 8050 (1993)) is applied with a plane-wave basis and both local and non-local pseudopotentials. This method divides the electron density of the system into substrate and embedded electron densities, the sum of which is the electron density of the system of interest. Coupling between the substrate and embedded systems is achieved via approximate kinetic energy functionals. Bulk ","authors_text":"D. M. Bird, J. R. Trail","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2009-09-30T04:56:41Z","title":"Density-functional embedding using a plane-wave basis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.5491","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":"sha256:69eb469b78f7a9f300c867e368a79a8566044cb48f5f2867228c073089ce713e","target":"record","created_at":"2026-05-18T02:11:36Z","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":"90d399aedc78a84f97d1e511699e0fc9173583d130b87ad1aa0eff4d77138a9e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2009-09-30T04:56:41Z","title_canon_sha256":"fc72a877cd2d6d0029a19eb27e7323b395ba381266c340c60c6b1b7a05e8ac37"},"schema_version":"1.0","source":{"id":"0909.5491","kind":"arxiv","version":1}},"canonical_sha256":"17c0e6f8598032972bc84dee369cc0a5a13ad57dd71a1786f9510c07083a160c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17c0e6f8598032972bc84dee369cc0a5a13ad57dd71a1786f9510c07083a160c","first_computed_at":"2026-05-18T02:11:36.175937Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:11:36.175937Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9uudImr8TReFYB0uzK//dkSFVhcGkUoC/ZmJyXV0Fj6YFnUjpP6+R/DAU4r1CXn46RmUeFvNDurzes0Tv8nmDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:11:36.176942Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.5491","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:69eb469b78f7a9f300c867e368a79a8566044cb48f5f2867228c073089ce713e","sha256:af149dd62745b191987afde45bdac40e11ca17a8a0081453b5a20d1293ed9fb0"],"state_sha256":"a6695b7e8830c87995c034475ad30674978b4dc94e6e45c2ee6c5611415572e0"}