{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:XZ4HTFRKV2RUK24C6MGYZRNLDU","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":"bc4dcf988cdec5fac0809ba3120101088a60d3337f24dfcf2e896d729e59f07f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-04-25T14:44:35Z","title_canon_sha256":"32ea8d3cf502ab85c4696877ad931223bda99e2a18bd7e447f727060f94a14f3"},"schema_version":"1.0","source":{"id":"2304.12874","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.12874","created_at":"2026-07-05T07:16:40Z"},{"alias_kind":"arxiv_version","alias_value":"2304.12874v1","created_at":"2026-07-05T07:16:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.12874","created_at":"2026-07-05T07:16:40Z"},{"alias_kind":"pith_short_12","alias_value":"XZ4HTFRKV2RU","created_at":"2026-07-05T07:16:40Z"},{"alias_kind":"pith_short_16","alias_value":"XZ4HTFRKV2RUK24C","created_at":"2026-07-05T07:16:40Z"},{"alias_kind":"pith_short_8","alias_value":"XZ4HTFRK","created_at":"2026-07-05T07:16:40Z"}],"graph_snapshots":[{"event_id":"sha256:e64dc7a60a0c38c8f2228aedeb6354deb8025a520ce3af88c38fef034a839ab6","target":"graph","created_at":"2026-07-05T07:16:40Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2304.12874/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We show that rhombohedral four-layer graphene (4LG) nearly aligned with a hexagonal boron nitride (hBN) substrate often develops nearly flat isolated low energy bands with non-zero valley Chern numbers. The bandwidths of the isolated flatbands are controllable through an electric field and twist angle, becoming as narrow as $\\sim10~$meV for interlayer potential differences between top and bottom layers of $|\\Delta|\\approx 10\\sim15~$meV and $\\theta \\sim 0.5^{\\circ}$ at the graphene and boron nitride interface. The local density of states (LDOS) analysis shows that the nearly flat band states ar","authors_text":"Bheema Lingam Chittari, Jeil Jung, Yeonju Kim, Youngju Park","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-04-25T14:44:35Z","title":"Topological flat bands in rhombohedral tetralayer and multilayer graphene on hexagonal boron nitride moire superlattices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.12874","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":"sha256:959ee649ba33b55267b1c44fc5b461431a5c9fbe067728e4f5c00c5eedb23007","target":"record","created_at":"2026-07-05T07:16:40Z","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":"bc4dcf988cdec5fac0809ba3120101088a60d3337f24dfcf2e896d729e59f07f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-04-25T14:44:35Z","title_canon_sha256":"32ea8d3cf502ab85c4696877ad931223bda99e2a18bd7e447f727060f94a14f3"},"schema_version":"1.0","source":{"id":"2304.12874","kind":"arxiv","version":1}},"canonical_sha256":"be7879962aaea3456b82f30d8cc5ab1d0f8993109af1eba2400b0e3ff28c920f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be7879962aaea3456b82f30d8cc5ab1d0f8993109af1eba2400b0e3ff28c920f","first_computed_at":"2026-07-05T07:16:40.695990Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:16:40.695990Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lRgbXEbRMLNMZgQAYjU8fOCRtuCL/PYDCcXlV7pNueB1DiUzzCF59ihEVngNBYQk0e0JUJ3KcvnSO/XqX7FSDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:16:40.696487Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.12874","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:959ee649ba33b55267b1c44fc5b461431a5c9fbe067728e4f5c00c5eedb23007","sha256:e64dc7a60a0c38c8f2228aedeb6354deb8025a520ce3af88c38fef034a839ab6"],"state_sha256":"79b2d639190ab42829fb13f243e73dcc49bbe6292bc1f8b921919ff289993a4d"}