{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:2HO4HHC6QF3J2DQQIBUQ27FTZC","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":"98cc43d89316633d4e99a33bc41d4f29d116720ad90eb168b4039ae784e4cb0e","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-05-08T14:33:17Z","title_canon_sha256":"fd0b5f7752022fa3db9afb31576f1a1a3bc7bbf4bf89e527bb07333474677b8b"},"schema_version":"1.0","source":{"id":"0705.1102","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0705.1102","created_at":"2026-05-18T04:09:16Z"},{"alias_kind":"arxiv_version","alias_value":"0705.1102v2","created_at":"2026-05-18T04:09:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0705.1102","created_at":"2026-05-18T04:09:16Z"},{"alias_kind":"pith_short_12","alias_value":"2HO4HHC6QF3J","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"2HO4HHC6QF3J2DQQ","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"2HO4HHC6","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:89da38f84fdbf6e10f06fc123d905bc76cc428937f0f47a0264f25f78bc905d6","target":"graph","created_at":"2026-05-18T04:09:16Z","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 investigate the quantum Hall (QH) states near the charge neutral Dirac point of a high mobility graphene sample in high magnetic fields. We find that the QH states at filling factors $\\nu=\\pm1$ depend only on the perpendicular component of the field with respect to the graphene plane, indicating them to be not spin-related. A non-linear magnetic field dependence of the activation energy gap at filling factor $\\nu=1$ suggests a many-body origin. We therefore propose that the $\\nu=0$ and $\\pm1$ states arise from the lifting of the spin and sub-lattice degeneracy of the $n=0$ LL, respectively.","authors_text":"H. L. Stormer, P. Kim, Y. Zhang, Z. Jiang","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-05-08T14:33:17Z","title":"The Nature of Quantum Hall States near the Charge Neutral Dirac Point in Graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0705.1102","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":"sha256:38cafeb9188e2fe3706bb6a90dacbf5270ce0bffc5269031c37c5f07dd22735e","target":"record","created_at":"2026-05-18T04:09:16Z","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":"98cc43d89316633d4e99a33bc41d4f29d116720ad90eb168b4039ae784e4cb0e","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-05-08T14:33:17Z","title_canon_sha256":"fd0b5f7752022fa3db9afb31576f1a1a3bc7bbf4bf89e527bb07333474677b8b"},"schema_version":"1.0","source":{"id":"0705.1102","kind":"arxiv","version":2}},"canonical_sha256":"d1ddc39c5e81769d0e1040690d7cb3c8a86047aeee8a693e486e50f046d71ab8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1ddc39c5e81769d0e1040690d7cb3c8a86047aeee8a693e486e50f046d71ab8","first_computed_at":"2026-05-18T04:09:16.730478Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:09:16.730478Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NMK7VLXkVVdsnmgx/kVB5THwLl/e/YSOikQWq13KBr2mjBbMGwypbRkJb02ZgyAuHB8uZ3cVmpecYYvCpuiaAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:09:16.731131Z","signed_message":"canonical_sha256_bytes"},"source_id":"0705.1102","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:38cafeb9188e2fe3706bb6a90dacbf5270ce0bffc5269031c37c5f07dd22735e","sha256:89da38f84fdbf6e10f06fc123d905bc76cc428937f0f47a0264f25f78bc905d6"],"state_sha256":"269acc597dccdf790f08ea64b2f332e0f6ec178cee8fbb13f7078b52c91e7420"}