{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4RL2EVIJ4C5SHQCEFT2ODXFYEE","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":"97bad32be157bcb83d91b5e9f6cd37a69f982d2b0b23ee80eb30d2b7dc66f2bc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-11-26T01:27:24Z","title_canon_sha256":"ad4965f889137cfea62ebcef22bcf43176d56ac60210afcf7b80af246e922b24"},"schema_version":"1.0","source":{"id":"1311.6538","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.6538","created_at":"2026-05-18T03:06:12Z"},{"alias_kind":"arxiv_version","alias_value":"1311.6538v1","created_at":"2026-05-18T03:06:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.6538","created_at":"2026-05-18T03:06:12Z"},{"alias_kind":"pith_short_12","alias_value":"4RL2EVIJ4C5S","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4RL2EVIJ4C5SHQCE","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4RL2EVIJ","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:4b7ccbfcedb61c872483bbc4e32dc5b5456e1dc2ba7595aa57ad79d8cbed8eb1","target":"graph","created_at":"2026-05-18T03:06:12Z","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":"In the s = 1/2 antiferromagnetic spin chain material TiPO4 the formation of a spin gap takes place in a two step process with two characteristic temperatures, T*=111 K and TSP=74 K. We observe an unusual lattice dynamics over a large temperature regime as well as evidence for an orbital instability preceding the spin-Peierls transition. We relate different intrachain exchange interactions of the high temperature compared to the spin-Peierls phase to a modification of the orbital ordering pattern. In particular, our observation of a high energy excitation of mixed electronic and lattice origin ","authors_text":"Angela M\\\"oller, Dirk Wulferding, Joseph M. Law, Karina V. Lamonova, Kwang-Yong Choi, Peter Lemmens, Reinhard K. Kremer, Robert Glaum, Roman Yu. Babkin, Yurii G. Pashkevich","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-11-26T01:27:24Z","title":"Lattice and orbital fluctuations in TiPO4"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.6538","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":"sha256:207971afcda9b2cd61423c67453f862904b1653b65956396462cb1c31232dc9f","target":"record","created_at":"2026-05-18T03:06:12Z","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":"97bad32be157bcb83d91b5e9f6cd37a69f982d2b0b23ee80eb30d2b7dc66f2bc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-11-26T01:27:24Z","title_canon_sha256":"ad4965f889137cfea62ebcef22bcf43176d56ac60210afcf7b80af246e922b24"},"schema_version":"1.0","source":{"id":"1311.6538","kind":"arxiv","version":1}},"canonical_sha256":"e457a25509e0bb23c0442cf4e1dcb8210b0e6570c28e7c770f9d4020d59969a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e457a25509e0bb23c0442cf4e1dcb8210b0e6570c28e7c770f9d4020d59969a5","first_computed_at":"2026-05-18T03:06:12.416436Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:06:12.416436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S10dLgLZNan3Pzijwg9PBB1bYidlm2zhhtnpT0YcocqdUP0ugCCo9OaK+8SHtMkzI7cayrDq/KTbq5hAAQJsDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:06:12.416899Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.6538","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:207971afcda9b2cd61423c67453f862904b1653b65956396462cb1c31232dc9f","sha256:4b7ccbfcedb61c872483bbc4e32dc5b5456e1dc2ba7595aa57ad79d8cbed8eb1"],"state_sha256":"4ab7de2232b629a0f23510829d1e42ba89c1fa8c44abb8d346a8556545755bc4"}