{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:NDG6BZC7T7LYLDBSF24BDMOTT3","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":"4821e1495f8dca1b640d6551076851abd5e3b646e5f3192f83ecb56f5c51018f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-10-26T01:05:41Z","title_canon_sha256":"990429a8a333a4b7a5930417701f8d56ff0f55dfb1d24f2fa1b4e2f8695c4fba"},"schema_version":"1.0","source":{"id":"1010.5294","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.5294","created_at":"2026-05-18T02:04:58Z"},{"alias_kind":"arxiv_version","alias_value":"1010.5294v1","created_at":"2026-05-18T02:04:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.5294","created_at":"2026-05-18T02:04:58Z"},{"alias_kind":"pith_short_12","alias_value":"NDG6BZC7T7LY","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"NDG6BZC7T7LYLDBS","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"NDG6BZC7","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:fcebf99a84cfeb4c16d867a20c0e44ad77aea7f072b51a567de1cda9e87050ee","target":"graph","created_at":"2026-05-18T02:04:58Z","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":"Magnetic measurements up to 1000 K have been performed on hydrothermally synthesized $\\alpha$-Fe$_{2}$O$_{3}$ nanoparticles (60 nm) using a Quantum Design vibrating sample magnetometer. A high vacuum environment (1$\\times$10$^{-5}$ torr) during the magnetic measurement up to 1000 K leads to a complete reduction of $\\alpha$-Fe$_{2}$O$_{3}$  to Fe$_{3}$O$_{4}$. This precludes the determination of the N\\'eel temperature for the $\\alpha$-Fe$_{2}$O$_{3}$ nanoparticles. In contrast, coating $\\alpha$-Fe$_{2}$O$_{3}$ nanoparticles with SiO$_{2}$ stabilizes the $\\alpha$-Fe$_{2}$O$_{3}$ phase up to 930 ","authors_text":"Fan Zhao, Guo-meng Zhao, Jun Wang, Wei Wu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-10-26T01:05:41Z","title":"Suppression of the N\\'eel temperature in hydrothermally synthesized alpha-Fe2O3 nanoparticles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.5294","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:d5b8f1b905451dd577a8502a8ca4718de28f71e4fab05d056d05f07dad1ccbad","target":"record","created_at":"2026-05-18T02:04:58Z","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":"4821e1495f8dca1b640d6551076851abd5e3b646e5f3192f83ecb56f5c51018f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-10-26T01:05:41Z","title_canon_sha256":"990429a8a333a4b7a5930417701f8d56ff0f55dfb1d24f2fa1b4e2f8695c4fba"},"schema_version":"1.0","source":{"id":"1010.5294","kind":"arxiv","version":1}},"canonical_sha256":"68cde0e45f9fd7858c322eb811b1d39ed9f8d7fecd21bdf33733a7e23209ab94","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"68cde0e45f9fd7858c322eb811b1d39ed9f8d7fecd21bdf33733a7e23209ab94","first_computed_at":"2026-05-18T02:04:58.525537Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:58.525537Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"crHw9FJBbnpXWsf+Zq98BqgV5lBqtenRO+koqHJwXWHQBOVMG6VVESAsp0Hf3ImcLYkG32ZtPpBJHdnxDsvIBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:58.526338Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.5294","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d5b8f1b905451dd577a8502a8ca4718de28f71e4fab05d056d05f07dad1ccbad","sha256:fcebf99a84cfeb4c16d867a20c0e44ad77aea7f072b51a567de1cda9e87050ee"],"state_sha256":"115fa67bafe37d70e288afb71e8e5596109f2943a0dc9ec30bea3ed700b61286"}