{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ZN6O2LD3D6W3MV5JXBVCV5Z46W","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":"fd7c1f21c0d17c094e21151927407731eaa81a427df89cabbda2032092c950b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-12-10T03:42:39Z","title_canon_sha256":"904e2f09d700e840b7b936fc9b3b9d88438cb590e2c9052058de0211c4035af4"},"schema_version":"1.0","source":{"id":"1412.3189","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3189","created_at":"2026-05-18T02:14:17Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3189v2","created_at":"2026-05-18T02:14:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3189","created_at":"2026-05-18T02:14:17Z"},{"alias_kind":"pith_short_12","alias_value":"ZN6O2LD3D6W3","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZN6O2LD3D6W3MV5J","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZN6O2LD3","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:9fb90834f59a78eb0a7e9306c0a5655a0a61ce0bd906b16083e31fc1dd6cadc8","target":"graph","created_at":"2026-05-18T02:14:17Z","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 report a nearly ideal quantum anomalous Hall effect in a three-dimensional topological insulator thin film with ferromagnetic doping. Near zero applied magnetic field we measure exact quantization in Hall resistance to within a part per 10,000 and longitudinal resistivity under 1 ohm per square, with chiral edge transport explicitly confirmed by non-local measurements. Deviations from this behavior are found to be caused by thermally-activated carriers, which can be eliminated by taking advantage of an unexpected magnetocaloric effect.","authors_text":"A. J. Bestwick, D. Goldhaber-Gordon, E. J. Fox, Kang L. Wang, Lei Pan, Xufeng Kou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-12-10T03:42:39Z","title":"Precise quantization of anomalous Hall effect near zero magnetic field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3189","kind":"arxiv","version":2},"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:f8779bdc7adc22d4c971db5dfef878d40ebd711d1fcedf975be37de2588f438e","target":"record","created_at":"2026-05-18T02:14:17Z","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":"fd7c1f21c0d17c094e21151927407731eaa81a427df89cabbda2032092c950b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-12-10T03:42:39Z","title_canon_sha256":"904e2f09d700e840b7b936fc9b3b9d88438cb590e2c9052058de0211c4035af4"},"schema_version":"1.0","source":{"id":"1412.3189","kind":"arxiv","version":2}},"canonical_sha256":"cb7ced2c7b1fadb657a9b86a2af73cf5ad6a68e8d7e326f7c648192f4a2d8632","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cb7ced2c7b1fadb657a9b86a2af73cf5ad6a68e8d7e326f7c648192f4a2d8632","first_computed_at":"2026-05-18T02:14:17.230623Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:17.230623Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fu23rsR8vwqtfsKW4NTTFjZcWcWOASlEElDL07QSmQLCJCvmMGvZmWqRKJbUIAmJtphhWE2hHj9vOJN2atWMDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:17.231385Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.3189","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f8779bdc7adc22d4c971db5dfef878d40ebd711d1fcedf975be37de2588f438e","sha256:9fb90834f59a78eb0a7e9306c0a5655a0a61ce0bd906b16083e31fc1dd6cadc8"],"state_sha256":"0c0ad6645593d168139b7a597fae4d6172a4b41d93193fd942ea254046d8807a"}