{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:DFBPNO6T53KE7TY7B6UXDUJHXZ","short_pith_number":"pith:DFBPNO6T","canonical_record":{"source":{"id":"1201.1105","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-01-05T10:34:57Z","cross_cats_sorted":[],"title_canon_sha256":"caee83d6eaa935e4b2588b4228f8bf814d50231e89267266bce89e8265fbbbc2","abstract_canon_sha256":"d3f29eb80bfe31ff5f9b0e6189fd4ca8c6374c0399074578088e9381eadcab69"},"schema_version":"1.0"},"canonical_sha256":"1942f6bbd3eed44fcf1f0fa971d127be5213e1878d3ff928271d751ee4eff246","source":{"kind":"arxiv","id":"1201.1105","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1105","created_at":"2026-05-18T04:05:06Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1105v1","created_at":"2026-05-18T04:05:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1105","created_at":"2026-05-18T04:05:06Z"},{"alias_kind":"pith_short_12","alias_value":"DFBPNO6T53KE","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"DFBPNO6T53KE7TY7","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"DFBPNO6T","created_at":"2026-05-18T12:27:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:DFBPNO6T53KE7TY7B6UXDUJHXZ","target":"record","payload":{"canonical_record":{"source":{"id":"1201.1105","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-01-05T10:34:57Z","cross_cats_sorted":[],"title_canon_sha256":"caee83d6eaa935e4b2588b4228f8bf814d50231e89267266bce89e8265fbbbc2","abstract_canon_sha256":"d3f29eb80bfe31ff5f9b0e6189fd4ca8c6374c0399074578088e9381eadcab69"},"schema_version":"1.0"},"canonical_sha256":"1942f6bbd3eed44fcf1f0fa971d127be5213e1878d3ff928271d751ee4eff246","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:05:06.146418Z","signature_b64":"Yyg4MP4wFMLV+W11le2G/a8Qz39V0RbFo9AD5OeAzOSx3SHUY04vZ3PtK62DsDjJPNs2caRlhdcssCqc4pEDDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1942f6bbd3eed44fcf1f0fa971d127be5213e1878d3ff928271d751ee4eff246","last_reissued_at":"2026-05-18T04:05:06.145661Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:05:06.145661Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.1105","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:05:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NoBapMTS9x4Xnd1IBgtVE36BSpwrglIEpwYBDViFXlBFrNBO5J03vE1yVvwPjAK2aJYRFJUgs1439dsJaHPPCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T18:37:52.616784Z"},"content_sha256":"40855792b2e679ef56275454ad5ea55096f8051064e94676e2a5ae9e7838ceb5","schema_version":"1.0","event_id":"sha256:40855792b2e679ef56275454ad5ea55096f8051064e94676e2a5ae9e7838ceb5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:DFBPNO6T53KE7TY7B6UXDUJHXZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gate tunable non-linear currents in bilayer graphene diodes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Hiroki Shioya, Michihisa Yamamoto, Monica F. Craciun, Saverio Russo, Seigo Tarucha","submitted_at":"2012-01-05T10:34:57Z","abstract_excerpt":"Electric transport of double gated bilayer graphene devices is studied as a function of charge density and bandgap. A top gate electrode can be used to control locally the Fermi level to create a pn junction between the double-gated and single-gated region. These bilayer graphene pn diodes are characterized by non-linear currents and directional current rectification, and we show the rectified direction of the source-drain voltage can be controlled by using gate voltages. A systematic study of the pn junction characteristics allows to extract a gate-dependent bandgap value which ranges from 0 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1105","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:05:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ljbdw/e3F32jBQZJt5wdoYwfYBTUa236UoEelsfAi64E15M6JMaJxJsMBdKIcR19mDGaGWWcasXi+i9xk8w8Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T18:37:52.617506Z"},"content_sha256":"5ec1b2bb3b4fef1e7a4eae76e934583134e2cdac35162e06fe0b402c97bf046e","schema_version":"1.0","event_id":"sha256:5ec1b2bb3b4fef1e7a4eae76e934583134e2cdac35162e06fe0b402c97bf046e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DFBPNO6T53KE7TY7B6UXDUJHXZ/bundle.json","state_url":"https://pith.science/pith/DFBPNO6T53KE7TY7B6UXDUJHXZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DFBPNO6T53KE7TY7B6UXDUJHXZ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T18:37:52Z","links":{"resolver":"https://pith.science/pith/DFBPNO6T53KE7TY7B6UXDUJHXZ","bundle":"https://pith.science/pith/DFBPNO6T53KE7TY7B6UXDUJHXZ/bundle.json","state":"https://pith.science/pith/DFBPNO6T53KE7TY7B6UXDUJHXZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DFBPNO6T53KE7TY7B6UXDUJHXZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:DFBPNO6T53KE7TY7B6UXDUJHXZ","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":"d3f29eb80bfe31ff5f9b0e6189fd4ca8c6374c0399074578088e9381eadcab69","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-01-05T10:34:57Z","title_canon_sha256":"caee83d6eaa935e4b2588b4228f8bf814d50231e89267266bce89e8265fbbbc2"},"schema_version":"1.0","source":{"id":"1201.1105","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1105","created_at":"2026-05-18T04:05:06Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1105v1","created_at":"2026-05-18T04:05:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1105","created_at":"2026-05-18T04:05:06Z"},{"alias_kind":"pith_short_12","alias_value":"DFBPNO6T53KE","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"DFBPNO6T53KE7TY7","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"DFBPNO6T","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:5ec1b2bb3b4fef1e7a4eae76e934583134e2cdac35162e06fe0b402c97bf046e","target":"graph","created_at":"2026-05-18T04:05:06Z","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":"Electric transport of double gated bilayer graphene devices is studied as a function of charge density and bandgap. A top gate electrode can be used to control locally the Fermi level to create a pn junction between the double-gated and single-gated region. These bilayer graphene pn diodes are characterized by non-linear currents and directional current rectification, and we show the rectified direction of the source-drain voltage can be controlled by using gate voltages. A systematic study of the pn junction characteristics allows to extract a gate-dependent bandgap value which ranges from 0 ","authors_text":"Hiroki Shioya, Michihisa Yamamoto, Monica F. Craciun, Saverio Russo, Seigo Tarucha","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-01-05T10:34:57Z","title":"Gate tunable non-linear currents in bilayer graphene diodes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1105","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":"sha256:40855792b2e679ef56275454ad5ea55096f8051064e94676e2a5ae9e7838ceb5","target":"record","created_at":"2026-05-18T04:05:06Z","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":"d3f29eb80bfe31ff5f9b0e6189fd4ca8c6374c0399074578088e9381eadcab69","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-01-05T10:34:57Z","title_canon_sha256":"caee83d6eaa935e4b2588b4228f8bf814d50231e89267266bce89e8265fbbbc2"},"schema_version":"1.0","source":{"id":"1201.1105","kind":"arxiv","version":1}},"canonical_sha256":"1942f6bbd3eed44fcf1f0fa971d127be5213e1878d3ff928271d751ee4eff246","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1942f6bbd3eed44fcf1f0fa971d127be5213e1878d3ff928271d751ee4eff246","first_computed_at":"2026-05-18T04:05:06.145661Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:05:06.145661Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Yyg4MP4wFMLV+W11le2G/a8Qz39V0RbFo9AD5OeAzOSx3SHUY04vZ3PtK62DsDjJPNs2caRlhdcssCqc4pEDDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:05:06.146418Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.1105","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40855792b2e679ef56275454ad5ea55096f8051064e94676e2a5ae9e7838ceb5","sha256:5ec1b2bb3b4fef1e7a4eae76e934583134e2cdac35162e06fe0b402c97bf046e"],"state_sha256":"d3444a2333deaffb2245a9d812d046279c622a7e3c55f9aad93fab233639952a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2IT6SL688xIq/Zsp+Y5ZNikGY28pbNSIIUgOO//BsyIMp6/7Hmi7OX95VrDw5nzPXal9ekMKBpYLREdK0BaLCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T18:37:52.621021Z","bundle_sha256":"69ab35ab7a15ce95ca476d5d3be1a0e49b86c6028ff0d9d9bec60d9b11358d3d"}}