{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:5DZOZV7A5MUPXTMRYW56FZL7W6","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":"34c0bf136f16f0e7269409f414c179b18d902a120d01294351b0ca9207d3431d","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2011-10-19T04:40:45Z","title_canon_sha256":"8693a74523665889114599b419c5868d15b9965f241469b2f519af7d6fe6b5ef"},"schema_version":"1.0","source":{"id":"1110.4179","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.4179","created_at":"2026-05-18T04:10:38Z"},{"alias_kind":"arxiv_version","alias_value":"1110.4179v1","created_at":"2026-05-18T04:10:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.4179","created_at":"2026-05-18T04:10:38Z"},{"alias_kind":"pith_short_12","alias_value":"5DZOZV7A5MUP","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"5DZOZV7A5MUPXTMR","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"5DZOZV7A","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:5a28f7dc8a850495d1a7ce261da5bdad0eafcfedc861b8056385a9d70fc794ba","target":"graph","created_at":"2026-05-18T04:10:38Z","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 present semiempirical tight binding calculations on thienylenevinylene oligomers up to the hexadecamer stage (n=16) and ab initio calculations based on the local density approximation up to n=8. The results correctly describe the experimental variations of the gap versus size, the optical spectra, and the electrochemical redox potentials. We propose a simple model to deduce from the band structure of the polymer chain the electronic states of the oligomers close to the gap. We analyze the evolution of the gap as a function of the torsion angle between consecutive cells: the modifications ar","authors_text":"Christophe Delerue (IEMN), Christophe Krzeminski (IEMN), Didier Sti\\'evenard (IEMN), Eric Levillain (CIMMA), Guy Allan (IEMN), Jean Roncali (CIMMA), P. Frere, Vincent Haguet (IEMN)","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2011-10-19T04:40:45Z","title":"Theoretical characterization of the electronic properties of extended thienylenevinylene oligomers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.4179","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":"sha256:004b6f9b54c26bb67f4b39578d873d5093ec7f629d961f5f033838e154b5d92c","target":"record","created_at":"2026-05-18T04:10:38Z","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":"34c0bf136f16f0e7269409f414c179b18d902a120d01294351b0ca9207d3431d","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2011-10-19T04:40:45Z","title_canon_sha256":"8693a74523665889114599b419c5868d15b9965f241469b2f519af7d6fe6b5ef"},"schema_version":"1.0","source":{"id":"1110.4179","kind":"arxiv","version":1}},"canonical_sha256":"e8f2ecd7e0eb28fbcd91c5bbe2e57fb7bb3e6cb0448786f44f609ce92b6979ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e8f2ecd7e0eb28fbcd91c5bbe2e57fb7bb3e6cb0448786f44f609ce92b6979ad","first_computed_at":"2026-05-18T04:10:38.005417Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:10:38.005417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8FQQnc7GbV78eSeUpaJZLP1g7dm0c4L/F3iRYYAlpYMWzqltAtrFRTaPNXx6T9drJr0EDP5/OEdoQTfNfcfcBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:10:38.006148Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.4179","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:004b6f9b54c26bb67f4b39578d873d5093ec7f629d961f5f033838e154b5d92c","sha256:5a28f7dc8a850495d1a7ce261da5bdad0eafcfedc861b8056385a9d70fc794ba"],"state_sha256":"8314f6c9a7fd5a87612f861eda6adfbeba9d6141b1e7deff71b8066b6b52417c"}