{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:VPESUV7JUFZBIP3CYR5RHNRTNC","short_pith_number":"pith:VPESUV7J","canonical_record":{"source":{"id":"1809.02276","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-07T01:49:47Z","cross_cats_sorted":[],"title_canon_sha256":"92cfb1c0e1ed45ee25816a00f017467b382d4ce51a6c41c000ec0e8ec847c743","abstract_canon_sha256":"a570652eca47e1930b1ce5f59d17aea5fb9543ea28c711521b35aee5a7fc79c0"},"schema_version":"1.0"},"canonical_sha256":"abc92a57e9a172143f62c47b13b6336891d39c3c5b948f82067a0f33ef70e055","source":{"kind":"arxiv","id":"1809.02276","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.02276","created_at":"2026-05-17T23:55:34Z"},{"alias_kind":"arxiv_version","alias_value":"1809.02276v2","created_at":"2026-05-17T23:55:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.02276","created_at":"2026-05-17T23:55:34Z"},{"alias_kind":"pith_short_12","alias_value":"VPESUV7JUFZB","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VPESUV7JUFZBIP3C","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VPESUV7J","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:VPESUV7JUFZBIP3CYR5RHNRTNC","target":"record","payload":{"canonical_record":{"source":{"id":"1809.02276","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-07T01:49:47Z","cross_cats_sorted":[],"title_canon_sha256":"92cfb1c0e1ed45ee25816a00f017467b382d4ce51a6c41c000ec0e8ec847c743","abstract_canon_sha256":"a570652eca47e1930b1ce5f59d17aea5fb9543ea28c711521b35aee5a7fc79c0"},"schema_version":"1.0"},"canonical_sha256":"abc92a57e9a172143f62c47b13b6336891d39c3c5b948f82067a0f33ef70e055","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:34.162292Z","signature_b64":"U4mtf/6h54MYwV/ma+bNR/VItA5rZsHybjHTtaTYvFG5HtuvGjA2bPFqxga/cA+0IyCamHzS5LyLYEJlfnnCBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"abc92a57e9a172143f62c47b13b6336891d39c3c5b948f82067a0f33ef70e055","last_reissued_at":"2026-05-17T23:55:34.161835Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:34.161835Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.02276","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":"2026-05-17T23:55:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cse4Xb5fWzQqZrt73xLkpWEf4DvwPPf45tyCqyfH8em8M50sZ1YVG76VBf944qfUMllrFLB6aRZw+PpNTds6Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T12:15:46.459824Z"},"content_sha256":"31edb16d7536d663719bb7a517b2505fd0a3d7b785aa08f48dea1699b2e38190","schema_version":"1.0","event_id":"sha256:31edb16d7536d663719bb7a517b2505fd0a3d7b785aa08f48dea1699b2e38190"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:VPESUV7JUFZBIP3CYR5RHNRTNC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Energy quantization at the \"three-quarter Dirac point\" in a magnetic field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Keita Kishigi, Yasumasa Hasegawa","submitted_at":"2018-09-07T01:49:47Z","abstract_excerpt":"The quantization of the energy in a magnetic field (Landau quantization) at a three-quarter Dirac point is studied theoretically. The three-quarter Dirac point is realized in the system of massless Dirac fermions with the critically tilted Dirac cone in one direction, where a linear term disappears and a quadratic term $\\alpha_2 q_x^2$ with aconstant $\\alpha_2$ plays an important role. The energy is obtained as $E_n \\propto \\alpha_2^{\\frac{3}{5}} (n B)^{\\frac{4}{5}}$, where $n=1, 2, 3, \\dots$, by means of numerically and analytically solving the differential equation, as well as by the semicla"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.02276","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":"2026-05-17T23:55:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7sh7DxDRACQZsnbDGldfla3lAsIAXQj9+q1ai6FVF3p++buUBmFKclv2sOeXeaTzX8s6lwd0f/JR+qI5A/06AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T12:15:46.460367Z"},"content_sha256":"6a5563f958b9b4304a68085002fb53efb0df679ee16e94ac74c949782c823787","schema_version":"1.0","event_id":"sha256:6a5563f958b9b4304a68085002fb53efb0df679ee16e94ac74c949782c823787"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VPESUV7JUFZBIP3CYR5RHNRTNC/bundle.json","state_url":"https://pith.science/pith/VPESUV7JUFZBIP3CYR5RHNRTNC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VPESUV7JUFZBIP3CYR5RHNRTNC/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":"2026-05-31T12:15:46Z","links":{"resolver":"https://pith.science/pith/VPESUV7JUFZBIP3CYR5RHNRTNC","bundle":"https://pith.science/pith/VPESUV7JUFZBIP3CYR5RHNRTNC/bundle.json","state":"https://pith.science/pith/VPESUV7JUFZBIP3CYR5RHNRTNC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VPESUV7JUFZBIP3CYR5RHNRTNC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:VPESUV7JUFZBIP3CYR5RHNRTNC","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":"a570652eca47e1930b1ce5f59d17aea5fb9543ea28c711521b35aee5a7fc79c0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-07T01:49:47Z","title_canon_sha256":"92cfb1c0e1ed45ee25816a00f017467b382d4ce51a6c41c000ec0e8ec847c743"},"schema_version":"1.0","source":{"id":"1809.02276","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.02276","created_at":"2026-05-17T23:55:34Z"},{"alias_kind":"arxiv_version","alias_value":"1809.02276v2","created_at":"2026-05-17T23:55:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.02276","created_at":"2026-05-17T23:55:34Z"},{"alias_kind":"pith_short_12","alias_value":"VPESUV7JUFZB","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VPESUV7JUFZBIP3C","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VPESUV7J","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:6a5563f958b9b4304a68085002fb53efb0df679ee16e94ac74c949782c823787","target":"graph","created_at":"2026-05-17T23:55:34Z","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 quantization of the energy in a magnetic field (Landau quantization) at a three-quarter Dirac point is studied theoretically. The three-quarter Dirac point is realized in the system of massless Dirac fermions with the critically tilted Dirac cone in one direction, where a linear term disappears and a quadratic term $\\alpha_2 q_x^2$ with aconstant $\\alpha_2$ plays an important role. The energy is obtained as $E_n \\propto \\alpha_2^{\\frac{3}{5}} (n B)^{\\frac{4}{5}}$, where $n=1, 2, 3, \\dots$, by means of numerically and analytically solving the differential equation, as well as by the semicla","authors_text":"Keita Kishigi, Yasumasa Hasegawa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-07T01:49:47Z","title":"Energy quantization at the \"three-quarter Dirac point\" in a magnetic field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.02276","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":"sha256:31edb16d7536d663719bb7a517b2505fd0a3d7b785aa08f48dea1699b2e38190","target":"record","created_at":"2026-05-17T23:55:34Z","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":"a570652eca47e1930b1ce5f59d17aea5fb9543ea28c711521b35aee5a7fc79c0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-07T01:49:47Z","title_canon_sha256":"92cfb1c0e1ed45ee25816a00f017467b382d4ce51a6c41c000ec0e8ec847c743"},"schema_version":"1.0","source":{"id":"1809.02276","kind":"arxiv","version":2}},"canonical_sha256":"abc92a57e9a172143f62c47b13b6336891d39c3c5b948f82067a0f33ef70e055","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"abc92a57e9a172143f62c47b13b6336891d39c3c5b948f82067a0f33ef70e055","first_computed_at":"2026-05-17T23:55:34.161835Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:34.161835Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U4mtf/6h54MYwV/ma+bNR/VItA5rZsHybjHTtaTYvFG5HtuvGjA2bPFqxga/cA+0IyCamHzS5LyLYEJlfnnCBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:34.162292Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.02276","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:31edb16d7536d663719bb7a517b2505fd0a3d7b785aa08f48dea1699b2e38190","sha256:6a5563f958b9b4304a68085002fb53efb0df679ee16e94ac74c949782c823787"],"state_sha256":"b6b28fa885d4fbcbaac8c70ca35e27a897b8e83d154efab34abf17e455b2cbaa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FxH3Nvnq/UyOio+xMj70xeBrC0J3bHOPpiLriNA+9DrueR/MvjXVTkw5s3cnPNHxdljM/bEBeAgfVyUG37lnBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T12:15:46.463545Z","bundle_sha256":"410da17869d1813bb897068a9ebfbac125eb0803aff34eeb3cbe37faeea891fc"}}