{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:O3UGGH6A7P2QTWRJ5JOSSZQYF6","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":"1640aceb00fcc396af59caec29c41928eb5de6879c2d621572399ce5ebc54e6b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-07-10T10:47:14Z","title_canon_sha256":"9c5ecfebd1c361463d7ce775b83f7218d03e07db06a87aaa9d4e336193e69a6f"},"schema_version":"1.0","source":{"id":"1207.2463","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.2463","created_at":"2026-05-18T03:51:15Z"},{"alias_kind":"arxiv_version","alias_value":"1207.2463v1","created_at":"2026-05-18T03:51:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.2463","created_at":"2026-05-18T03:51:15Z"},{"alias_kind":"pith_short_12","alias_value":"O3UGGH6A7P2Q","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"O3UGGH6A7P2QTWRJ","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"O3UGGH6A","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:336db0a2ec442221d141459d04db732ab33a657a3211227ef8f5b4ec000e52d4","target":"graph","created_at":"2026-05-18T03:51:15Z","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 magnetic field dependences of birefringence in a $NdFe_3(BO_3)_4$ single crystal have been measured in the case where the direction of light propagation coincides with the trigonal crystal axis $C_3$ ($k\\|C_3$), and the external magnetic field is oriented along the second-order axis $C_2$ ($H\\|C_2$). In the temperature range, in which an incommensurate phase exists with the formation of a long-period antiferromagnetic helix, the strongly pronounced jumps in the field dependence of birefringence are revealed and identified as a firstorder spin-orientation phase transition. The phase transit","authors_text":"D. N. Merenkov, L. N. Bezmaternykh, M. I. Pashchenko, V. A. Bedarev, V. L. Temerov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-07-10T10:47:14Z","title":"Magnetooptical Study of Spin-Orientation Phase Transition in $NdFe_3(BO_3)_4$ Single Crystal"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.2463","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":"sha256:6a6412a79d8324db8b8e63117b2ea45b1e8376c7f8057cb0f59aa50e9cd74572","target":"record","created_at":"2026-05-18T03:51:15Z","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":"1640aceb00fcc396af59caec29c41928eb5de6879c2d621572399ce5ebc54e6b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-07-10T10:47:14Z","title_canon_sha256":"9c5ecfebd1c361463d7ce775b83f7218d03e07db06a87aaa9d4e336193e69a6f"},"schema_version":"1.0","source":{"id":"1207.2463","kind":"arxiv","version":1}},"canonical_sha256":"76e8631fc0fbf509da29ea5d2966182f9e332c03cc7dd7678da739e6f9f57198","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"76e8631fc0fbf509da29ea5d2966182f9e332c03cc7dd7678da739e6f9f57198","first_computed_at":"2026-05-18T03:51:15.342300Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:51:15.342300Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+gTC1s7+F661a5ApQuWopXCUpvtXim2GoCHMMjWFD+pDQ8DCTc46shc67Nn8sBrCZxwZ6oyA57iN1WBLYeBoBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:51:15.342880Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.2463","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a6412a79d8324db8b8e63117b2ea45b1e8376c7f8057cb0f59aa50e9cd74572","sha256:336db0a2ec442221d141459d04db732ab33a657a3211227ef8f5b4ec000e52d4"],"state_sha256":"b3f299a7533620e3564adcc9b34667495841281350fba6421d1157a763b48339"}