{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:YUV7SF4XOP52GGDIRFJ5FE44EQ","short_pith_number":"pith:YUV7SF4X","canonical_record":{"source":{"id":"1308.1395","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-08-06T19:59:43Z","cross_cats_sorted":["cond-mat.str-el","hep-th"],"title_canon_sha256":"02483f45fd8cb03bd06e118dea87d3579bc8e00b86214dfb060edce4ed103886","abstract_canon_sha256":"15d171f30cbd275302a35cb438ba72e110528d34a59986fce286286db0a06d5a"},"schema_version":"1.0"},"canonical_sha256":"c52bf9179773fba318688953d2939c2401ca76cd81d03e83855a2212885a31ac","source":{"kind":"arxiv","id":"1308.1395","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.1395","created_at":"2026-05-18T03:03:09Z"},{"alias_kind":"arxiv_version","alias_value":"1308.1395v2","created_at":"2026-05-18T03:03:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.1395","created_at":"2026-05-18T03:03:09Z"},{"alias_kind":"pith_short_12","alias_value":"YUV7SF4XOP52","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"YUV7SF4XOP52GGDI","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"YUV7SF4X","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:YUV7SF4XOP52GGDIRFJ5FE44EQ","target":"record","payload":{"canonical_record":{"source":{"id":"1308.1395","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-08-06T19:59:43Z","cross_cats_sorted":["cond-mat.str-el","hep-th"],"title_canon_sha256":"02483f45fd8cb03bd06e118dea87d3579bc8e00b86214dfb060edce4ed103886","abstract_canon_sha256":"15d171f30cbd275302a35cb438ba72e110528d34a59986fce286286db0a06d5a"},"schema_version":"1.0"},"canonical_sha256":"c52bf9179773fba318688953d2939c2401ca76cd81d03e83855a2212885a31ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:03:09.825669Z","signature_b64":"PaTi/4PgUGWOVfb07AZcbG3nXXwQoHoGw1hSORTS2mGahvC9llRQyqXZl7wXEznLJhB9Mz1dHqdOlpS06UEvAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c52bf9179773fba318688953d2939c2401ca76cd81d03e83855a2212885a31ac","last_reissued_at":"2026-05-18T03:03:09.824947Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:03:09.824947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.1395","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:03:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"id3VAnZ6i70dp7GGhEIlO003NpCOGYM47ggidSh5woMalc5Kvr6/Yw3JQE3hRlSPZXNaTopzBw9O5+QICf5XBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T13:27:23.823948Z"},"content_sha256":"4a1f28203e642532a3d4d191d60969f6441c0c50e9befed06bbe0afad8c3b61b","schema_version":"1.0","event_id":"sha256:4a1f28203e642532a3d4d191d60969f6441c0c50e9befed06bbe0afad8c3b61b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:YUV7SF4XOP52GGDIRFJ5FE44EQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bilayer graphene with parallel magnetic field and twisting: Phases and phase transitions in a highly tunable Dirac system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","hep-th"],"primary_cat":"cond-mat.mes-hall","authors_text":"Bitan Roy, Kun Yang","submitted_at":"2013-08-06T19:59:43Z","abstract_excerpt":"The effective theory for bilayer graphene (BLG), subject to parallel/in-plane magnetic fields, is derived. With a sizable magnetic field the trigonal warping becomes irrelevant, and one ends up with two Dirac points in the vicinity of each valley in the low-energy limit, similar to the twisted BLG. Combining twisting and parallel field thus gives rise to a Dirac system with tunable Fermi velocity and cutoff. If the interactions are sufficiently strong, several fully gapped states can be realized in these systems, in addition to the ones in a pristine setup. Transformations of the order paramet"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.1395","kind":"arxiv","version":2},"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":"2026-05-18T03:03:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZEHkh5r5tKfb4yH/iMfpXdw5hT1wGQ9w8tcm0w1vlq/taVcJZiTAXUgi2cl//vyTubxzQmzHIG88uKyjQ0DyDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T13:27:23.824621Z"},"content_sha256":"a95935e9dab7a9c70189ad2794e83850909da99dad4b2ed30bebbb77d629df68","schema_version":"1.0","event_id":"sha256:a95935e9dab7a9c70189ad2794e83850909da99dad4b2ed30bebbb77d629df68"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YUV7SF4XOP52GGDIRFJ5FE44EQ/bundle.json","state_url":"https://pith.science/pith/YUV7SF4XOP52GGDIRFJ5FE44EQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YUV7SF4XOP52GGDIRFJ5FE44EQ/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":"2026-05-26T13:27:23Z","links":{"resolver":"https://pith.science/pith/YUV7SF4XOP52GGDIRFJ5FE44EQ","bundle":"https://pith.science/pith/YUV7SF4XOP52GGDIRFJ5FE44EQ/bundle.json","state":"https://pith.science/pith/YUV7SF4XOP52GGDIRFJ5FE44EQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YUV7SF4XOP52GGDIRFJ5FE44EQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:YUV7SF4XOP52GGDIRFJ5FE44EQ","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":"15d171f30cbd275302a35cb438ba72e110528d34a59986fce286286db0a06d5a","cross_cats_sorted":["cond-mat.str-el","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-08-06T19:59:43Z","title_canon_sha256":"02483f45fd8cb03bd06e118dea87d3579bc8e00b86214dfb060edce4ed103886"},"schema_version":"1.0","source":{"id":"1308.1395","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.1395","created_at":"2026-05-18T03:03:09Z"},{"alias_kind":"arxiv_version","alias_value":"1308.1395v2","created_at":"2026-05-18T03:03:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.1395","created_at":"2026-05-18T03:03:09Z"},{"alias_kind":"pith_short_12","alias_value":"YUV7SF4XOP52","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"YUV7SF4XOP52GGDI","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"YUV7SF4X","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:a95935e9dab7a9c70189ad2794e83850909da99dad4b2ed30bebbb77d629df68","target":"graph","created_at":"2026-05-18T03:03:09Z","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":"The effective theory for bilayer graphene (BLG), subject to parallel/in-plane magnetic fields, is derived. With a sizable magnetic field the trigonal warping becomes irrelevant, and one ends up with two Dirac points in the vicinity of each valley in the low-energy limit, similar to the twisted BLG. Combining twisting and parallel field thus gives rise to a Dirac system with tunable Fermi velocity and cutoff. If the interactions are sufficiently strong, several fully gapped states can be realized in these systems, in addition to the ones in a pristine setup. Transformations of the order paramet","authors_text":"Bitan Roy, Kun Yang","cross_cats":["cond-mat.str-el","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-08-06T19:59:43Z","title":"Bilayer graphene with parallel magnetic field and twisting: Phases and phase transitions in a highly tunable Dirac system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.1395","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":"sha256:4a1f28203e642532a3d4d191d60969f6441c0c50e9befed06bbe0afad8c3b61b","target":"record","created_at":"2026-05-18T03:03:09Z","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":"15d171f30cbd275302a35cb438ba72e110528d34a59986fce286286db0a06d5a","cross_cats_sorted":["cond-mat.str-el","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-08-06T19:59:43Z","title_canon_sha256":"02483f45fd8cb03bd06e118dea87d3579bc8e00b86214dfb060edce4ed103886"},"schema_version":"1.0","source":{"id":"1308.1395","kind":"arxiv","version":2}},"canonical_sha256":"c52bf9179773fba318688953d2939c2401ca76cd81d03e83855a2212885a31ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c52bf9179773fba318688953d2939c2401ca76cd81d03e83855a2212885a31ac","first_computed_at":"2026-05-18T03:03:09.824947Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:03:09.824947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PaTi/4PgUGWOVfb07AZcbG3nXXwQoHoGw1hSORTS2mGahvC9llRQyqXZl7wXEznLJhB9Mz1dHqdOlpS06UEvAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:03:09.825669Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.1395","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a1f28203e642532a3d4d191d60969f6441c0c50e9befed06bbe0afad8c3b61b","sha256:a95935e9dab7a9c70189ad2794e83850909da99dad4b2ed30bebbb77d629df68"],"state_sha256":"ce864997f60c8a76ed05aeba87b19e5ee33bf4d3fc539012e3689da62fa8d89d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gluc8UCJ/f8VCjHXVZw7oG4x3OkYysdDUqWFOttGJBVILBNe/pZunVZ3YLL4ggOS4EecGYcXSbXH2KwbCsJmCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T13:27:23.827938Z","bundle_sha256":"6c85ab69ccccdafee99a80e7374e37744e9aa4048be39dc8f2be3ba8542d0c33"}}