{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:4KG2P4FB2BRNT6HY54TTXCO5AW","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":"96b82ccda9fd3b4b91967fefb6fd7dc8e73326b15345ce50bd780aed8ae7d3ce","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2004-12-10T16:33:29Z","title_canon_sha256":"843c2ed785568d6f7eabf73275a328813d9ddb05611e2e85ee3ba9c213718158"},"schema_version":"1.0","source":{"id":"cond-mat/0412277","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0412277","created_at":"2026-05-18T01:09:00Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0412277v1","created_at":"2026-05-18T01:09:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0412277","created_at":"2026-05-18T01:09:00Z"},{"alias_kind":"pith_short_12","alias_value":"4KG2P4FB2BRN","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"4KG2P4FB2BRNT6HY","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"4KG2P4FB","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:d08ddeb3e0c44ff52c1a72eaf569e3f662527f12c40849b4e43e87da8097c772","target":"graph","created_at":"2026-05-18T01:09:00Z","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 short-range organization around Ni atoms in orthorhombic $R$NiO$_{3}$ ($R$=Pr,Nd,Eu) perovskites has been studied over a wide temperature range by Ni K-edge x-ray absorption spectroscopy. Our results demonstrate that two different Ni sites, with different average Ni-O bond lengths, coexist in those orthorhombic compounds and that important modifications in the Ni nearest neighbors environment take place across the metal-insulator transition. We report evidences for the existence of short-range charge-order in the insulating state, as found in the monoclinic compounds. Moreover, our results","authors_text":"Aline Y. Ramos, C\\'inthia Piamonteze, H\\'elio C. N. Tolentino, Jose A. Alonso, Maria J. Mart\\'inez-Lope, Maria T. Casais, Nestor E. Massa","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2004-12-10T16:33:29Z","title":"Short-range charge-order in $R$NiO$_{3}$ perovskites ($R$=Pr,Nd,Eu) probed by X-ray absorption spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0412277","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":"sha256:8ef78cc18e0a299f0d8b411e190a5797c987d16af4062a1a507ce7c11871a006","target":"record","created_at":"2026-05-18T01:09:00Z","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":"96b82ccda9fd3b4b91967fefb6fd7dc8e73326b15345ce50bd780aed8ae7d3ce","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2004-12-10T16:33:29Z","title_canon_sha256":"843c2ed785568d6f7eabf73275a328813d9ddb05611e2e85ee3ba9c213718158"},"schema_version":"1.0","source":{"id":"cond-mat/0412277","kind":"arxiv","version":1}},"canonical_sha256":"e28da7f0a1d062d9f8f8ef273b89dd05aef3ddbfafbee8ad2916ca434e150fc6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e28da7f0a1d062d9f8f8ef273b89dd05aef3ddbfafbee8ad2916ca434e150fc6","first_computed_at":"2026-05-18T01:09:00.531920Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:00.531920Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eQBlvio1IcbDJQF+xG76g4EwhO3rRC9ninQfWO617ekPvHCZeHOJ4Iqk2g6OfzCsgF34jpfw0t3KjycQgSViCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:00.532356Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0412277","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ef78cc18e0a299f0d8b411e190a5797c987d16af4062a1a507ce7c11871a006","sha256:d08ddeb3e0c44ff52c1a72eaf569e3f662527f12c40849b4e43e87da8097c772"],"state_sha256":"fa6d863527e570ede6aaad45cb3df65df186562b7173bacfb2daf8adfe00c4d3"}