{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:UBSPEAFTS3OVAJ5V7L6SYHNVZH","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":"63e05f7aa2769513ff87adb87165687ab9a1622346ec0627f177f672f210fbac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-01-10T22:29:20Z","title_canon_sha256":"874ec51e1697e2b0f65982a1b19c21883cc71801563b193f739905236ce0a8b4"},"schema_version":"1.0","source":{"id":"1901.03420","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.03420","created_at":"2026-07-04T23:55:36Z"},{"alias_kind":"arxiv_version","alias_value":"1901.03420v4","created_at":"2026-07-04T23:55:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.03420","created_at":"2026-07-04T23:55:36Z"},{"alias_kind":"pith_short_12","alias_value":"UBSPEAFTS3OV","created_at":"2026-07-04T23:55:36Z"},{"alias_kind":"pith_short_16","alias_value":"UBSPEAFTS3OVAJ5V","created_at":"2026-07-04T23:55:36Z"},{"alias_kind":"pith_short_8","alias_value":"UBSPEAFT","created_at":"2026-07-04T23:55:36Z"}],"graph_snapshots":[{"event_id":"sha256:ebf26917350aaddc1aa200012804e0bd192409c0632b27f7d4ac3bbc87d2eb52","target":"graph","created_at":"2026-07-04T23:55:36Z","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/1901.03420/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We introduce a complete physical model for the single-particle electronic structure of twisted bilayer graphene (tBLG), which incorporates the crucial role of lattice relaxation. Our model, based on $k \\cdot p$ perturbation theory, combines the accuracy of DFT calculations through effective tight-binding Hamiltonians with the computational efficiency and complete control of the twist angle offered by continuum models. The inclusion of relaxation significantly changes the bandstructure at the first magic-angle twist corresponding to flat bands near the Fermi level (the \"low-energy\" states), and","authors_text":"Efthimios Kaxiras, Shiang Fang, Stephen Carr, Ziyan Zhu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-01-10T22:29:20Z","title":"An exact continuum model for low-energy electronic states of twisted bilayer graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.03420","kind":"arxiv","version":4},"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":"sha256:8a55294e55a8cce851076496ec833a36ccf230aac92a4a228ea905462d8ee618","target":"record","created_at":"2026-07-04T23:55:36Z","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":"63e05f7aa2769513ff87adb87165687ab9a1622346ec0627f177f672f210fbac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-01-10T22:29:20Z","title_canon_sha256":"874ec51e1697e2b0f65982a1b19c21883cc71801563b193f739905236ce0a8b4"},"schema_version":"1.0","source":{"id":"1901.03420","kind":"arxiv","version":4}},"canonical_sha256":"a064f200b396dd5027b5fafd2c1db5c9cb7f716b81d91a97158615a2e9bfe2a3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a064f200b396dd5027b5fafd2c1db5c9cb7f716b81d91a97158615a2e9bfe2a3","first_computed_at":"2026-07-04T23:55:36.576488Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:55:36.576488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"09mgjBzFWBM2xmOeGqwMBzok2rXThKz9legGz39DrpLpd8jQULTLvQy28NxolKWbg8vQHzNZQ5LEHnYcUdL1AA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:55:36.577036Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.03420","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a55294e55a8cce851076496ec833a36ccf230aac92a4a228ea905462d8ee618","sha256:ebf26917350aaddc1aa200012804e0bd192409c0632b27f7d4ac3bbc87d2eb52"],"state_sha256":"462dcecab51989a7c238c73eb0bab36ec43ac4aed3ac3e3e6b8d0721fb791995"}