{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:GCWK5GPTIEMOJR5A4HO2XUESIY","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":"30e0dd4100c0fb7abc67f319cc1a94d4c0aee942485ddc49acf09b1172869bfb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2014-04-23T20:02:16Z","title_canon_sha256":"351afc4738244490f0da96661daa3a071c547eb60c938161649cf50948fb8a1a"},"schema_version":"1.0","source":{"id":"1404.5966","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.5966","created_at":"2026-05-18T01:43:25Z"},{"alias_kind":"arxiv_version","alias_value":"1404.5966v1","created_at":"2026-05-18T01:43:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.5966","created_at":"2026-05-18T01:43:25Z"},{"alias_kind":"pith_short_12","alias_value":"GCWK5GPTIEMO","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GCWK5GPTIEMOJR5A","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GCWK5GPT","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:94d6b01bdc7e95390805644c0a85c1f8427ffcf00dfe2d1792715172dbdfc3ac","target":"graph","created_at":"2026-05-18T01:43:25Z","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 new state specific correlation correction to configuration interaction singles (CIS) excitation energies is preseted using coupled cluster perturbation theory (CCPT). General expressions for CIS-CCPT are derived and expanded explicitly to first order in the wavefunction and second order in the energy. By virtue of the nature of CCPT this method is {\\it a priori} size extensive and incorporates infinite order effects into the wavefunction. This results in a balanced singles space excited state theory that at second order is an improvement over the ubiquitous CIS(D) method and comparable in qu","authors_text":"Jason N. Byrd, Rodney J. Bartlett, Victor F. Lotrich","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2014-04-23T20:02:16Z","title":"Correlation correction to configuration interaction singles from coupled cluster perturbation theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.5966","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":"sha256:6b8c9a9142fab8a4196471f94d048c05782c17d5b0162c181016f8d046ccba22","target":"record","created_at":"2026-05-18T01:43:25Z","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":"30e0dd4100c0fb7abc67f319cc1a94d4c0aee942485ddc49acf09b1172869bfb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2014-04-23T20:02:16Z","title_canon_sha256":"351afc4738244490f0da96661daa3a071c547eb60c938161649cf50948fb8a1a"},"schema_version":"1.0","source":{"id":"1404.5966","kind":"arxiv","version":1}},"canonical_sha256":"30acae99f34118e4c7a0e1ddabd092460d84f63ab6a8ac8eefb1fdefe163296a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30acae99f34118e4c7a0e1ddabd092460d84f63ab6a8ac8eefb1fdefe163296a","first_computed_at":"2026-05-18T01:43:25.629471Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:25.629471Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JHZXkDvDeULSBt1uKNUh/JxJQ4nV7+Z8VaPjkcrPOjNToxpedzhhgvZESPCauQLgwNQWy0lKFz5GxjgmmLkvCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:25.630099Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.5966","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b8c9a9142fab8a4196471f94d048c05782c17d5b0162c181016f8d046ccba22","sha256:94d6b01bdc7e95390805644c0a85c1f8427ffcf00dfe2d1792715172dbdfc3ac"],"state_sha256":"3b2012a2488dd621bfea505049cdbfe927335ddad3c1c6a5e94ca5207fc1eda8"}