{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:2MRXIBBSMBPT6F6MVDX323OHWS","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":"7bfb00b03e309f3d0d134611b45e3d52d3a042bc26a5408238bcdf7ddc7bca3d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2025-09-08T09:13:59Z","title_canon_sha256":"bf872dad4b9c24f0d73169c6f4b5a91009e132db19a4311fc9a19b4d85423647"},"schema_version":"1.0","source":{"id":"2509.06460","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.06460","created_at":"2026-07-05T12:06:36Z"},{"alias_kind":"arxiv_version","alias_value":"2509.06460v1","created_at":"2026-07-05T12:06:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.06460","created_at":"2026-07-05T12:06:36Z"},{"alias_kind":"pith_short_12","alias_value":"2MRXIBBSMBPT","created_at":"2026-07-05T12:06:36Z"},{"alias_kind":"pith_short_16","alias_value":"2MRXIBBSMBPT6F6M","created_at":"2026-07-05T12:06:36Z"},{"alias_kind":"pith_short_8","alias_value":"2MRXIBBS","created_at":"2026-07-05T12:06:36Z"}],"graph_snapshots":[{"event_id":"sha256:3345894fa731562b6773478256d02127bd82f99c307a9a6e6604c5197762543f","target":"graph","created_at":"2026-07-05T12:06:36Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2509.06460/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Excited-state gradients and derivative couplings are critical for simulating excited-state dynamics. However, their calculations are very expensive within the coupled-cluster framework due to the steep scaling. In this work, we present two implementations of stochastic resolution of identity to CC2 (sRI-CC2) for excited-state analytical gradients and derivative couplings. The first method employs sRI for both Coulomb and exchange terms, reducing the formal scaling to cubic. However, this method has a significant stochastic noise. Consequently, we introduce a substitute, termed partial sRI-CC2,","authors_text":"Chenyang Li, Chongxiao Zhao, Wenjie Dou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2025-09-08T09:13:59Z","title":"Stochastic resolution of identity to CC2 for large systems: Excited-state gradients and derivative couplings"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.06460","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:ed44f4c02169944e15449f98e48d65e7efe65b6a1f9dcbcdd6ff3ddafa3b1b30","target":"record","created_at":"2026-07-05T12:06:36Z","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":"7bfb00b03e309f3d0d134611b45e3d52d3a042bc26a5408238bcdf7ddc7bca3d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2025-09-08T09:13:59Z","title_canon_sha256":"bf872dad4b9c24f0d73169c6f4b5a91009e132db19a4311fc9a19b4d85423647"},"schema_version":"1.0","source":{"id":"2509.06460","kind":"arxiv","version":1}},"canonical_sha256":"d323740432605f3f17cca8efbd6dc7b485cf21575cd3a9407b3d782de1b40e52","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d323740432605f3f17cca8efbd6dc7b485cf21575cd3a9407b3d782de1b40e52","first_computed_at":"2026-07-05T12:06:36.265144Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:06:36.265144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZQ2ngOS5Ct5rG4+XmCdrJujMYwzm0o99fLHTIBKBMHNxy4rrxFZVarhqrYYHDVb8GJw5p/VStxNcFQ7L6vfdBw==","signature_status":"signed_v1","signed_at":"2026-07-05T12:06:36.265654Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.06460","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ed44f4c02169944e15449f98e48d65e7efe65b6a1f9dcbcdd6ff3ddafa3b1b30","sha256:3345894fa731562b6773478256d02127bd82f99c307a9a6e6604c5197762543f"],"state_sha256":"1f1e905570b51b94ba9cd612fcba349815a518d5126c4bb4836710235ca82896"}