{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:FHRRXX3BWCNM264MEUK74TC4QE","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":"a1d61e01456b389bdfadf1ea8e309bc321bb203708a674bfede0548141eaf7ad","cross_cats_sorted":["physics.chem-ph","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-11-12T06:15:06Z","title_canon_sha256":"e8ef724166c9ca69512c73ce1b9d76cbceadc81379ca8361f2fcf3d32500fef2"},"schema_version":"1.0","source":{"id":"1411.3082","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.3082","created_at":"2026-05-18T02:37:50Z"},{"alias_kind":"arxiv_version","alias_value":"1411.3082v1","created_at":"2026-05-18T02:37:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.3082","created_at":"2026-05-18T02:37:50Z"},{"alias_kind":"pith_short_12","alias_value":"FHRRXX3BWCNM","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FHRRXX3BWCNM264M","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FHRRXX3B","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:126e2fd4a9f0690108d374af1f2dbdbf7f456881fe8a12b86708e2e1fcae2667","target":"graph","created_at":"2026-05-18T02:37:50Z","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 structure of approximate two electron wavefunction is deeply investigated, both theoretically and numerically, in the strong-field driven ionization dynamics. Theoretical analyses clarify that for two electron singlet systems, the previously proposed time-dependent extended Hartree-Fock (TD-EHF) method [Phys. Rev. A 51, 3999 (1995)] is equivalent to the multiconfiguration time-dependent Hartree-Fock method with two occupied orbitals. The latter wavefunction is further transformed into the natural expansion form, enabling the direct propagation of the natural orbitals (NOs). These methods, ","authors_text":"Kenichi L Ishikawa, Takeshi Sato","cross_cats":["physics.chem-ph","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-11-12T06:15:06Z","title":"The structure of approximate two electron wavefunctions in intense laser driven ionization dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.3082","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":"sha256:4643cb1d8a6f812d3eb039f0cd254761e7e3a87bae8f6b24fffe7b36e6e997a7","target":"record","created_at":"2026-05-18T02:37:50Z","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":"a1d61e01456b389bdfadf1ea8e309bc321bb203708a674bfede0548141eaf7ad","cross_cats_sorted":["physics.chem-ph","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-11-12T06:15:06Z","title_canon_sha256":"e8ef724166c9ca69512c73ce1b9d76cbceadc81379ca8361f2fcf3d32500fef2"},"schema_version":"1.0","source":{"id":"1411.3082","kind":"arxiv","version":1}},"canonical_sha256":"29e31bdf61b09acd7b8c2515fe4c5c8102f66db5937dfff678507b8287225091","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29e31bdf61b09acd7b8c2515fe4c5c8102f66db5937dfff678507b8287225091","first_computed_at":"2026-05-18T02:37:50.995000Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:37:50.995000Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Yc4Uq+qmhFbWtuBd66LxXsWT50Kmx167eiAeoToX3cl0RqxHdXHSsDvQJLtkUzn8Ep1GaqNSmPo1mKtIatSDCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:37:50.995575Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.3082","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4643cb1d8a6f812d3eb039f0cd254761e7e3a87bae8f6b24fffe7b36e6e997a7","sha256:126e2fd4a9f0690108d374af1f2dbdbf7f456881fe8a12b86708e2e1fcae2667"],"state_sha256":"e2b03604ff3adf03e9430ecbe6ac61a13b55fa17394abae48cc3772f744bffa0"}