{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:G6NVNAYX4JTDNKWZOGE2MTM7DZ","short_pith_number":"pith:G6NVNAYX","canonical_record":{"source":{"id":"0708.1381","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.other","submitted_at":"2007-08-10T08:55:27Z","cross_cats_sorted":[],"title_canon_sha256":"c59e68fae57595da8d85b66358976a7674e6ef58cb749be9d1ffa7052d574b58","abstract_canon_sha256":"019075888c54330fad8a6f59eb017bacdf3c83fc4a64b03d427d414ee53608ab"},"schema_version":"1.0"},"canonical_sha256":"379b568317e26636aad97189a64d9f1e5e2ed577c7d3819921db25392ad3c1dd","source":{"kind":"arxiv","id":"0708.1381","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0708.1381","created_at":"2026-05-18T04:42:24Z"},{"alias_kind":"arxiv_version","alias_value":"0708.1381v1","created_at":"2026-05-18T04:42:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0708.1381","created_at":"2026-05-18T04:42:24Z"},{"alias_kind":"pith_short_12","alias_value":"G6NVNAYX4JTD","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"G6NVNAYX4JTDNKWZ","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"G6NVNAYX","created_at":"2026-05-18T12:25:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:G6NVNAYX4JTDNKWZOGE2MTM7DZ","target":"record","payload":{"canonical_record":{"source":{"id":"0708.1381","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.other","submitted_at":"2007-08-10T08:55:27Z","cross_cats_sorted":[],"title_canon_sha256":"c59e68fae57595da8d85b66358976a7674e6ef58cb749be9d1ffa7052d574b58","abstract_canon_sha256":"019075888c54330fad8a6f59eb017bacdf3c83fc4a64b03d427d414ee53608ab"},"schema_version":"1.0"},"canonical_sha256":"379b568317e26636aad97189a64d9f1e5e2ed577c7d3819921db25392ad3c1dd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:42:24.002232Z","signature_b64":"UcGOORms9Oun23Ufbud1spXG2Xm76rS4LC1i8VaqbvxYzjtPhnUb+n0/qtMIsSKXNYMfMlf1lBT8lBdc7rPTAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"379b568317e26636aad97189a64d9f1e5e2ed577c7d3819921db25392ad3c1dd","last_reissued_at":"2026-05-18T04:42:24.001782Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:42:24.001782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0708.1381","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:42:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+uFIzPzwITUAAKOZubUA/S7JtTw6O9ac5SrRmSDKFZT1xW0in5oiZ2DM9ybLUP1vGA0XPxDRlHP3GKTjTUN5Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:39:28.078414Z"},"content_sha256":"d2f573410f62315aee26a7fbe08fb7665bc638e560b90ae417ade3a1762ebf1a","schema_version":"1.0","event_id":"sha256:d2f573410f62315aee26a7fbe08fb7665bc638e560b90ae417ade3a1762ebf1a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:G6NVNAYX4JTDNKWZOGE2MTM7DZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Troubleshooting Time-Dependent Density-Functional Theory for Photochemical Applications: Oxirane","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.other","authors_text":"Alberto Vela, Andrei Ipatov, Claudia Filippi, Felipe Cordova, L. Joubert Doriol, Mark E. Casida","submitted_at":"2007-08-10T08:55:27Z","abstract_excerpt":"The development of analytic-gradient methodology for excited states within conventional time-dependent density-functional theory (TDDFT) would seem to offer a relatively inexpensive alternative to better established quantum-chemical approaches for the modeling of photochemical reactions. However, even though TDDFT is formally exact, practical calculations involve the use of approximate functionals, in particular the TDDFT adiabatic approximation, whose use in photochemical applications must be further validated. Here, we investigate the prototypical case of the symmetric CC ring opening of oxi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0708.1381","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:42:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w6AnFQVGuCIc8KMN3XbyTQVmWVIBYYqiw9m3SV74PVCJ0Tssc0S2flLN/rW2TvH/IhT1bJE+fRmJ2WHT0/2bAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:39:28.079080Z"},"content_sha256":"cebf34fa7be0e970321681fb12571b1d62eb067f8ca48a2bdd7cc6e030a3f248","schema_version":"1.0","event_id":"sha256:cebf34fa7be0e970321681fb12571b1d62eb067f8ca48a2bdd7cc6e030a3f248"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G6NVNAYX4JTDNKWZOGE2MTM7DZ/bundle.json","state_url":"https://pith.science/pith/G6NVNAYX4JTDNKWZOGE2MTM7DZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G6NVNAYX4JTDNKWZOGE2MTM7DZ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-27T08:39:28Z","links":{"resolver":"https://pith.science/pith/G6NVNAYX4JTDNKWZOGE2MTM7DZ","bundle":"https://pith.science/pith/G6NVNAYX4JTDNKWZOGE2MTM7DZ/bundle.json","state":"https://pith.science/pith/G6NVNAYX4JTDNKWZOGE2MTM7DZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G6NVNAYX4JTDNKWZOGE2MTM7DZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:G6NVNAYX4JTDNKWZOGE2MTM7DZ","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":"019075888c54330fad8a6f59eb017bacdf3c83fc4a64b03d427d414ee53608ab","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.other","submitted_at":"2007-08-10T08:55:27Z","title_canon_sha256":"c59e68fae57595da8d85b66358976a7674e6ef58cb749be9d1ffa7052d574b58"},"schema_version":"1.0","source":{"id":"0708.1381","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0708.1381","created_at":"2026-05-18T04:42:24Z"},{"alias_kind":"arxiv_version","alias_value":"0708.1381v1","created_at":"2026-05-18T04:42:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0708.1381","created_at":"2026-05-18T04:42:24Z"},{"alias_kind":"pith_short_12","alias_value":"G6NVNAYX4JTD","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"G6NVNAYX4JTDNKWZ","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"G6NVNAYX","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:cebf34fa7be0e970321681fb12571b1d62eb067f8ca48a2bdd7cc6e030a3f248","target":"graph","created_at":"2026-05-18T04:42:24Z","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 development of analytic-gradient methodology for excited states within conventional time-dependent density-functional theory (TDDFT) would seem to offer a relatively inexpensive alternative to better established quantum-chemical approaches for the modeling of photochemical reactions. However, even though TDDFT is formally exact, practical calculations involve the use of approximate functionals, in particular the TDDFT adiabatic approximation, whose use in photochemical applications must be further validated. Here, we investigate the prototypical case of the symmetric CC ring opening of oxi","authors_text":"Alberto Vela, Andrei Ipatov, Claudia Filippi, Felipe Cordova, L. Joubert Doriol, Mark E. Casida","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.other","submitted_at":"2007-08-10T08:55:27Z","title":"Troubleshooting Time-Dependent Density-Functional Theory for Photochemical Applications: Oxirane"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0708.1381","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:d2f573410f62315aee26a7fbe08fb7665bc638e560b90ae417ade3a1762ebf1a","target":"record","created_at":"2026-05-18T04:42:24Z","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":"019075888c54330fad8a6f59eb017bacdf3c83fc4a64b03d427d414ee53608ab","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.other","submitted_at":"2007-08-10T08:55:27Z","title_canon_sha256":"c59e68fae57595da8d85b66358976a7674e6ef58cb749be9d1ffa7052d574b58"},"schema_version":"1.0","source":{"id":"0708.1381","kind":"arxiv","version":1}},"canonical_sha256":"379b568317e26636aad97189a64d9f1e5e2ed577c7d3819921db25392ad3c1dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"379b568317e26636aad97189a64d9f1e5e2ed577c7d3819921db25392ad3c1dd","first_computed_at":"2026-05-18T04:42:24.001782Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:42:24.001782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UcGOORms9Oun23Ufbud1spXG2Xm76rS4LC1i8VaqbvxYzjtPhnUb+n0/qtMIsSKXNYMfMlf1lBT8lBdc7rPTAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:42:24.002232Z","signed_message":"canonical_sha256_bytes"},"source_id":"0708.1381","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d2f573410f62315aee26a7fbe08fb7665bc638e560b90ae417ade3a1762ebf1a","sha256:cebf34fa7be0e970321681fb12571b1d62eb067f8ca48a2bdd7cc6e030a3f248"],"state_sha256":"4ed503707b30ebf4207862a833e5078d3fb78fc07f65a31120e3ee30c993322b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZcUfksnvC4haibAKNGI8QB2zu5CizpCLT+GEOuXPbo2bx+kC8TUl41Mngc1S6GwxU96qEBGFn1qakDYXWazKBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T08:39:28.082675Z","bundle_sha256":"5b0f6e60020f305f2e1725ad7a99f10620dbf7ef76cee4b4a5af286f1597393e"}}