{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:D3EHWHFUGNDGKTGAO5H7CXNQLZ","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":"be58bab072972998e002c43f8253dff4f815a1025a1bcc8a1ee6804bb2fb2bc5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-04-18T02:59:09Z","title_canon_sha256":"6322acf22a30b4687aeeb5a5bfac35edda22c2d9e2c2fd40308c0fe927c94e04"},"schema_version":"1.0","source":{"id":"1204.3964","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.3964","created_at":"2026-05-18T03:21:21Z"},{"alias_kind":"arxiv_version","alias_value":"1204.3964v1","created_at":"2026-05-18T03:21:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.3964","created_at":"2026-05-18T03:21:21Z"},{"alias_kind":"pith_short_12","alias_value":"D3EHWHFUGNDG","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"D3EHWHFUGNDGKTGA","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"D3EHWHFU","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:1ca19c5f3988ac6f3318fb3a050ed5b762e8110e0a6e506c3b8f2225eb3f690d","target":"graph","created_at":"2026-05-18T03:21:21Z","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":"We have calculated electric-dipole polarizabilities of the 3s^2 ^1S_0, 3s3p ^3P_0, and 3s3p ^1P_1 states of the Si^{2+} ion using recently developed configuration interaction + all-order method. Detailed evaluation of the uncertainties of the final results is carried out. Our value for the ground state electric-dipole polarizability 11.670(13) a.u. is in excellent agreement with the resonant excitation Stark ionization spectroscopy value 11.669(9) a.u. [Komara et al., J. Phys. B 38, 87 (2005); Mitroy, Phys. Rev. A 78, 052515 (2008)]. This work represents the most precise benchmark test to date","authors_text":"Charles W. Clark, M. G. Kozlov, M. S. Safronova, S. G. Porsev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-04-18T02:59:09Z","title":"Polarizabilities of Si^{2+}: a benchmark test of theory and experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.3964","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":"sha256:4cc510651656f25d0e30fb2ccf59f5936fb32ee10520fc0628cf46d3c1d65250","target":"record","created_at":"2026-05-18T03:21:21Z","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":"be58bab072972998e002c43f8253dff4f815a1025a1bcc8a1ee6804bb2fb2bc5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-04-18T02:59:09Z","title_canon_sha256":"6322acf22a30b4687aeeb5a5bfac35edda22c2d9e2c2fd40308c0fe927c94e04"},"schema_version":"1.0","source":{"id":"1204.3964","kind":"arxiv","version":1}},"canonical_sha256":"1ec87b1cb43346654cc0774ff15db05e423c3856d2c39f58f727312e68f428d5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ec87b1cb43346654cc0774ff15db05e423c3856d2c39f58f727312e68f428d5","first_computed_at":"2026-05-18T03:21:21.680039Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:21:21.680039Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ic9EiyskNZYZ25OhAmR9+RkS8heLc8mpF3QhOUVJXlMjhHWlJsxEG2q+zk3MGBxthKF+lLl4VX8vc6YMLj4aCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:21:21.680746Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.3964","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4cc510651656f25d0e30fb2ccf59f5936fb32ee10520fc0628cf46d3c1d65250","sha256:1ca19c5f3988ac6f3318fb3a050ed5b762e8110e0a6e506c3b8f2225eb3f690d"],"state_sha256":"f744c5316908c4d6d3fe92a593128df162f891a3ff9b3b2a046038bec5d5264e"}