{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:WQTY2LCDTS63I5K2P2VTSRFDI3","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":"88415d09a4c1e498bc5826d64e236c60c56cb6eee2231c3a1be5dbff6db9e223","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-08-02T16:38:22Z","title_canon_sha256":"e2e41d70deba5d9bddd8062d48e52ed53e9c42fd5c59a10cbdbb91fda95fcf2f"},"schema_version":"1.0","source":{"id":"1408.0394","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.0394","created_at":"2026-05-18T01:40:59Z"},{"alias_kind":"arxiv_version","alias_value":"1408.0394v1","created_at":"2026-05-18T01:40:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.0394","created_at":"2026-05-18T01:40:59Z"},{"alias_kind":"pith_short_12","alias_value":"WQTY2LCDTS63","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WQTY2LCDTS63I5K2","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WQTY2LCD","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:a4e972ea7cee516425321f7a86c423e28c74d95d9939a2fd6fc320c07187912c","target":"graph","created_at":"2026-05-18T01:40:59Z","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 reason why the half-integer quantum Hall effect (QHE) is suppressed in graphene grown by chemical vapor deposition (CVD) is unclear. We propose that it might be connected to extended defects in the material and present results for the quantum Hall effect in graphene with [0001] tilt grain boundaries connecting opposite sides of Hall bar devices. Such grain boundaries contain 5-7 ring complexes that host defect states that hybridize to form bands with varying degree of metallicity depending on grain boundary defect density. In a magnetic field, edge states on opposite sides of the Hall bar ","authors_text":"Anders Bergvall, Johan M. Carlsson, Tomas Lofwander","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-08-02T16:38:22Z","title":"Destroyed quantum Hall effect in graphene with [0001] tilt grain boundaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.0394","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":"sha256:1275d17e9bc6463248d812b36b401748752f5e3f377f89a93246fcecfb0f6045","target":"record","created_at":"2026-05-18T01:40:59Z","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":"88415d09a4c1e498bc5826d64e236c60c56cb6eee2231c3a1be5dbff6db9e223","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-08-02T16:38:22Z","title_canon_sha256":"e2e41d70deba5d9bddd8062d48e52ed53e9c42fd5c59a10cbdbb91fda95fcf2f"},"schema_version":"1.0","source":{"id":"1408.0394","kind":"arxiv","version":1}},"canonical_sha256":"b4278d2c439cbdb4755a7eab3944a346fca8b428fc674decade0c2b855d4e87c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4278d2c439cbdb4755a7eab3944a346fca8b428fc674decade0c2b855d4e87c","first_computed_at":"2026-05-18T01:40:59.949002Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:59.949002Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0y2zft9whfcUII81CvML9FccPXQZ0GVk+Tq/66V7kKb39osldDOojvH4xG2wy4QmP613W35RDmRXYzi0fqb5AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:59.949542Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.0394","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1275d17e9bc6463248d812b36b401748752f5e3f377f89a93246fcecfb0f6045","sha256:a4e972ea7cee516425321f7a86c423e28c74d95d9939a2fd6fc320c07187912c"],"state_sha256":"1808abe6593513a0c41a2eb3d16822cb5f5c9972673922505035f2ff5ef62beb"}