{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:6RP7SLWIYUHAPGJGDN5K67SEQ4","short_pith_number":"pith:6RP7SLWI","canonical_record":{"source":{"id":"1309.4653","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-09-18T14:09:01Z","cross_cats_sorted":[],"title_canon_sha256":"0ec49ea670fe6516886de76657fa507ece89ae31274166ea47c0a0979e6c8253","abstract_canon_sha256":"6d219e6634c06bce4530a85a81f9e2ac3aa7548d25dcaa9dfffb8b8f6a2cb176"},"schema_version":"1.0"},"canonical_sha256":"f45ff92ec8c50e0799261b7aaf7e44870ee20632aeb942cf8b1b0a312d301bf5","source":{"kind":"arxiv","id":"1309.4653","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.4653","created_at":"2026-05-18T03:12:58Z"},{"alias_kind":"arxiv_version","alias_value":"1309.4653v1","created_at":"2026-05-18T03:12:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.4653","created_at":"2026-05-18T03:12:58Z"},{"alias_kind":"pith_short_12","alias_value":"6RP7SLWIYUHA","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"6RP7SLWIYUHAPGJG","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"6RP7SLWI","created_at":"2026-05-18T12:27:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:6RP7SLWIYUHAPGJGDN5K67SEQ4","target":"record","payload":{"canonical_record":{"source":{"id":"1309.4653","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-09-18T14:09:01Z","cross_cats_sorted":[],"title_canon_sha256":"0ec49ea670fe6516886de76657fa507ece89ae31274166ea47c0a0979e6c8253","abstract_canon_sha256":"6d219e6634c06bce4530a85a81f9e2ac3aa7548d25dcaa9dfffb8b8f6a2cb176"},"schema_version":"1.0"},"canonical_sha256":"f45ff92ec8c50e0799261b7aaf7e44870ee20632aeb942cf8b1b0a312d301bf5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:12:58.664462Z","signature_b64":"aL09Q+Nau1gCS9CSQSmsF2jwmw2sx8cdv1cbLBydAlsvk5LlOO6q0Me6s57ptns1vz7ZRnH/MQWn70+8HGhFBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f45ff92ec8c50e0799261b7aaf7e44870ee20632aeb942cf8b1b0a312d301bf5","last_reissued_at":"2026-05-18T03:12:58.663880Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:12:58.663880Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.4653","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":"2026-05-18T03:12:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Dt7wHim6Ylu/nI+vPH9zhE4XZlXHBj6yVHqUbtCTO11fh0kOkaEkOetRPjAewAhju4FrMxkchF22mspT5KIAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T13:40:40.943807Z"},"content_sha256":"8a63254c45d131c697d8b40a6c3a210d616cea4e2a6ab1df99afc4bcf3d2d0d1","schema_version":"1.0","event_id":"sha256:8a63254c45d131c697d8b40a6c3a210d616cea4e2a6ab1df99afc4bcf3d2d0d1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:6RP7SLWIYUHAPGJGDN5K67SEQ4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tunable Superlattice in Graphene To Control the Number of Dirac Points","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Ajay K. Bhat, K. Sengupta, Mandar M. Deshmukh, Pritesh Parikh, Rajdeep Sensarma, Sameer Grover, Sudipta Dubey, Vibhor Singh, Vikram Tripathi","submitted_at":"2013-09-18T14:09:01Z","abstract_excerpt":"Superlattice in graphene generates extra Dirac points in the band structure and their number depends on the superlattice potential strength. Here, we have created a lateral superlattice in a graphene device with a tunable barrier height using a combination of two gates. In this Letter, we demonstrate the use of lateral superlattice to modify the band structure of graphene leading to the emergence of new Dirac cones. This controlled modification of the band structure persists up to 100 K."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.4653","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":"2026-05-18T03:12:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0yh3S+PkuH9VyiMEYiGi8aSLJuevUFaUoqMZukDJeKljdqEzvdLdSMxXfFwsXeOrKH/EjJdHgXlt9JDAd4NrCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T13:40:40.944541Z"},"content_sha256":"7c0ee4479e26678931b5ca8f47e15ba479a168a35a6b01ee23e65df95fdccdc1","schema_version":"1.0","event_id":"sha256:7c0ee4479e26678931b5ca8f47e15ba479a168a35a6b01ee23e65df95fdccdc1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6RP7SLWIYUHAPGJGDN5K67SEQ4/bundle.json","state_url":"https://pith.science/pith/6RP7SLWIYUHAPGJGDN5K67SEQ4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6RP7SLWIYUHAPGJGDN5K67SEQ4/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":"2026-05-25T13:40:40Z","links":{"resolver":"https://pith.science/pith/6RP7SLWIYUHAPGJGDN5K67SEQ4","bundle":"https://pith.science/pith/6RP7SLWIYUHAPGJGDN5K67SEQ4/bundle.json","state":"https://pith.science/pith/6RP7SLWIYUHAPGJGDN5K67SEQ4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6RP7SLWIYUHAPGJGDN5K67SEQ4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:6RP7SLWIYUHAPGJGDN5K67SEQ4","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":"6d219e6634c06bce4530a85a81f9e2ac3aa7548d25dcaa9dfffb8b8f6a2cb176","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-09-18T14:09:01Z","title_canon_sha256":"0ec49ea670fe6516886de76657fa507ece89ae31274166ea47c0a0979e6c8253"},"schema_version":"1.0","source":{"id":"1309.4653","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.4653","created_at":"2026-05-18T03:12:58Z"},{"alias_kind":"arxiv_version","alias_value":"1309.4653v1","created_at":"2026-05-18T03:12:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.4653","created_at":"2026-05-18T03:12:58Z"},{"alias_kind":"pith_short_12","alias_value":"6RP7SLWIYUHA","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"6RP7SLWIYUHAPGJG","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"6RP7SLWI","created_at":"2026-05-18T12:27:36Z"}],"graph_snapshots":[{"event_id":"sha256:7c0ee4479e26678931b5ca8f47e15ba479a168a35a6b01ee23e65df95fdccdc1","target":"graph","created_at":"2026-05-18T03:12:58Z","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":"Superlattice in graphene generates extra Dirac points in the band structure and their number depends on the superlattice potential strength. Here, we have created a lateral superlattice in a graphene device with a tunable barrier height using a combination of two gates. In this Letter, we demonstrate the use of lateral superlattice to modify the band structure of graphene leading to the emergence of new Dirac cones. This controlled modification of the band structure persists up to 100 K.","authors_text":"Ajay K. Bhat, K. Sengupta, Mandar M. Deshmukh, Pritesh Parikh, Rajdeep Sensarma, Sameer Grover, Sudipta Dubey, Vibhor Singh, Vikram Tripathi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-09-18T14:09:01Z","title":"Tunable Superlattice in Graphene To Control the Number of Dirac Points"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.4653","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":"sha256:8a63254c45d131c697d8b40a6c3a210d616cea4e2a6ab1df99afc4bcf3d2d0d1","target":"record","created_at":"2026-05-18T03:12:58Z","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":"6d219e6634c06bce4530a85a81f9e2ac3aa7548d25dcaa9dfffb8b8f6a2cb176","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-09-18T14:09:01Z","title_canon_sha256":"0ec49ea670fe6516886de76657fa507ece89ae31274166ea47c0a0979e6c8253"},"schema_version":"1.0","source":{"id":"1309.4653","kind":"arxiv","version":1}},"canonical_sha256":"f45ff92ec8c50e0799261b7aaf7e44870ee20632aeb942cf8b1b0a312d301bf5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f45ff92ec8c50e0799261b7aaf7e44870ee20632aeb942cf8b1b0a312d301bf5","first_computed_at":"2026-05-18T03:12:58.663880Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:12:58.663880Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aL09Q+Nau1gCS9CSQSmsF2jwmw2sx8cdv1cbLBydAlsvk5LlOO6q0Me6s57ptns1vz7ZRnH/MQWn70+8HGhFBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:12:58.664462Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.4653","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a63254c45d131c697d8b40a6c3a210d616cea4e2a6ab1df99afc4bcf3d2d0d1","sha256:7c0ee4479e26678931b5ca8f47e15ba479a168a35a6b01ee23e65df95fdccdc1"],"state_sha256":"2e103a174650c1dd55658ca12a23a55f5725a68779507e22327e867649c4cd4c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ca0gD2ico4Q4RfrbzwvBW+h9gRhTJCr7mj238oubepXs8uKDCBISqJ/NQw+ZKYhw9XJvh52lp9M909m9XRzJCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T13:40:40.948483Z","bundle_sha256":"5d7fe44027a43cab0db8d36a23ab9f2e66e52a19e10f7acea3a7994f95ad33f6"}}