{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:6K6JY7ZLPXYEOXFNVDDXTTL3L4","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":"0e4b62cc95f0c0f1fde841fa234666015b25f6f4828ac288dd8c25bd4ca43a39","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-04-07T04:55:13Z","title_canon_sha256":"69c594c6be6c2837cb1fc3611ae648a5b8e3e90de147f80f4c66876d15032109"},"schema_version":"1.0","source":{"id":"1404.1655","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.1655","created_at":"2026-05-18T02:32:14Z"},{"alias_kind":"arxiv_version","alias_value":"1404.1655v2","created_at":"2026-05-18T02:32:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.1655","created_at":"2026-05-18T02:32:14Z"},{"alias_kind":"pith_short_12","alias_value":"6K6JY7ZLPXYE","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"6K6JY7ZLPXYEOXFN","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"6K6JY7ZL","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:8832bb0fd078d586920e83171936d7d46a36b2bbef4cc1dd4b46f9e98a86104a","target":"graph","created_at":"2026-05-18T02:32:14Z","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":"Intrinsic bilayer graphene is a gapless semimetal. Under the application of a bias field it becomes a semiconductor with a direct band gap that is proportional to the applied field. Under a layer-asymmetric strain (where the upper layer undergoes compression and lower layer tension or visa-versa) we find that the band gap of a biased bilayer graphene ribbon becomes indirect and, for higher strains, becomes negative returning the material its original semimetal state. As a result, the conductivity of the ribbon increases and can be almost an order of magnitude larger that of the intrinsic unbia","authors_text":"J. A. Crosse","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-04-07T04:55:13Z","title":"Strain dependent conductivity in biased bilayer graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.1655","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":"sha256:9b3195fd60931f1cf3d57b0eae641985a7a0966b0f2c00bad17128f2cf0ec10e","target":"record","created_at":"2026-05-18T02:32:14Z","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":"0e4b62cc95f0c0f1fde841fa234666015b25f6f4828ac288dd8c25bd4ca43a39","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-04-07T04:55:13Z","title_canon_sha256":"69c594c6be6c2837cb1fc3611ae648a5b8e3e90de147f80f4c66876d15032109"},"schema_version":"1.0","source":{"id":"1404.1655","kind":"arxiv","version":2}},"canonical_sha256":"f2bc9c7f2b7df0475cada8c779cd7b5f155f2694724cdc257f7155a942e25fd1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2bc9c7f2b7df0475cada8c779cd7b5f155f2694724cdc257f7155a942e25fd1","first_computed_at":"2026-05-18T02:32:14.097719Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:14.097719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RSIz5fKdmek4JZVKyZjR4R6fWo11ultaqCH4EuSGSUADMDBbH9KVVZDwkOlapkxGMjZfEuFxmUlQS2qQaYvVCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:14.098428Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.1655","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b3195fd60931f1cf3d57b0eae641985a7a0966b0f2c00bad17128f2cf0ec10e","sha256:8832bb0fd078d586920e83171936d7d46a36b2bbef4cc1dd4b46f9e98a86104a"],"state_sha256":"d4574add30c780850383caff63c77eeca632cd59077be8c5655b1602dc9df1e3"}