{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:OTQAAMT4JWVLKCE4CCDJY7K2WJ","short_pith_number":"pith:OTQAAMT4","canonical_record":{"source":{"id":"2412.13980","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2024-12-18T16:02:40Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"e8f8622e22764ebc9229d8013bc95c4cfe06571bdfa15776476edbeeebbec9d1","abstract_canon_sha256":"9b01a24c70d0d1a4f17990dd4951b4c79df52cbdc7a7e4a303f87723539c9e5b"},"schema_version":"1.0"},"canonical_sha256":"74e000327c4daab5089c10869c7d5ab256dee557dfeb0446a3e4c514dc63fa50","source":{"kind":"arxiv","id":"2412.13980","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.13980","created_at":"2026-07-05T09:51:11Z"},{"alias_kind":"arxiv_version","alias_value":"2412.13980v1","created_at":"2026-07-05T09:51:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.13980","created_at":"2026-07-05T09:51:11Z"},{"alias_kind":"pith_short_12","alias_value":"OTQAAMT4JWVL","created_at":"2026-07-05T09:51:11Z"},{"alias_kind":"pith_short_16","alias_value":"OTQAAMT4JWVLKCE4","created_at":"2026-07-05T09:51:11Z"},{"alias_kind":"pith_short_8","alias_value":"OTQAAMT4","created_at":"2026-07-05T09:51:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:OTQAAMT4JWVLKCE4CCDJY7K2WJ","target":"record","payload":{"canonical_record":{"source":{"id":"2412.13980","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2024-12-18T16:02:40Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"e8f8622e22764ebc9229d8013bc95c4cfe06571bdfa15776476edbeeebbec9d1","abstract_canon_sha256":"9b01a24c70d0d1a4f17990dd4951b4c79df52cbdc7a7e4a303f87723539c9e5b"},"schema_version":"1.0"},"canonical_sha256":"74e000327c4daab5089c10869c7d5ab256dee557dfeb0446a3e4c514dc63fa50","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:51:11.729684Z","signature_b64":"wHN39n+3Au4u3QlPe+2tUzsPRGfIvIu4wHoe7alUBrvw0hpTvH2PHUUngMvW8re6U7z6CsoVm71PxfgJdutPDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"74e000327c4daab5089c10869c7d5ab256dee557dfeb0446a3e4c514dc63fa50","last_reissued_at":"2026-07-05T09:51:11.729204Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:51:11.729204Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.13980","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":"2026-07-05T09:51:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n93ZOnypICtTWDITJ2A4QEdVB+treBMbwpXAap4HljYm+9aJZ2eD/Srf0a45iFOQFNcmo8M9JykyrrAMCvUfBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T14:17:44.576168Z"},"content_sha256":"30a9050aec5e0ade67f38540990eb939588ae674af6c063c0acf0925fddc64a6","schema_version":"1.0","event_id":"sha256:30a9050aec5e0ade67f38540990eb939588ae674af6c063c0acf0925fddc64a6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:OTQAAMT4JWVLKCE4CCDJY7K2WJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Correlated interaction effects in an anisotropic flat band fermion system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.str-el","authors_text":"Chang-Jin Zhang, Jing-Rong Wang","submitted_at":"2024-12-18T16:02:40Z","abstract_excerpt":"An anisotropic flat band fermion system with a novel dispersion that is linear along one direction and cubic along another is proposed in Phys. Rev. X. 13, 021012 (2023). We study the effects of Coulomb interaction in this fermion system by renormalization group theory and Dyson-Schwinger gap equation. We perform renormalizaton group analysis and find that fermion velocity is always restored along the direction that the fermions take cubic dispersion originally. Accordingly, the system takes the similar behaviors to the two-dimensional Dirac fermion system with Coulomb interaction in the low e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.13980","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2412.13980/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T09:51:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LgxKx5IvFvHSwBTfkAM5At479EQrcH6XIsdHR7SwSlNZujuEzjkiubyZRu/kCoLa6lIzdnoNYF9VC960zK1FDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T14:17:44.576886Z"},"content_sha256":"9e7f40d31b99b21bb10dd68b455fd5a7cebcec4f33dc36000a27483caa49f723","schema_version":"1.0","event_id":"sha256:9e7f40d31b99b21bb10dd68b455fd5a7cebcec4f33dc36000a27483caa49f723"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OTQAAMT4JWVLKCE4CCDJY7K2WJ/bundle.json","state_url":"https://pith.science/pith/OTQAAMT4JWVLKCE4CCDJY7K2WJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OTQAAMT4JWVLKCE4CCDJY7K2WJ/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":"2026-08-18T14:17:44Z","links":{"resolver":"https://pith.science/pith/OTQAAMT4JWVLKCE4CCDJY7K2WJ","bundle":"https://pith.science/pith/OTQAAMT4JWVLKCE4CCDJY7K2WJ/bundle.json","state":"https://pith.science/pith/OTQAAMT4JWVLKCE4CCDJY7K2WJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OTQAAMT4JWVLKCE4CCDJY7K2WJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:OTQAAMT4JWVLKCE4CCDJY7K2WJ","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":"9b01a24c70d0d1a4f17990dd4951b4c79df52cbdc7a7e4a303f87723539c9e5b","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2024-12-18T16:02:40Z","title_canon_sha256":"e8f8622e22764ebc9229d8013bc95c4cfe06571bdfa15776476edbeeebbec9d1"},"schema_version":"1.0","source":{"id":"2412.13980","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.13980","created_at":"2026-07-05T09:51:11Z"},{"alias_kind":"arxiv_version","alias_value":"2412.13980v1","created_at":"2026-07-05T09:51:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.13980","created_at":"2026-07-05T09:51:11Z"},{"alias_kind":"pith_short_12","alias_value":"OTQAAMT4JWVL","created_at":"2026-07-05T09:51:11Z"},{"alias_kind":"pith_short_16","alias_value":"OTQAAMT4JWVLKCE4","created_at":"2026-07-05T09:51:11Z"},{"alias_kind":"pith_short_8","alias_value":"OTQAAMT4","created_at":"2026-07-05T09:51:11Z"}],"graph_snapshots":[{"event_id":"sha256:9e7f40d31b99b21bb10dd68b455fd5a7cebcec4f33dc36000a27483caa49f723","target":"graph","created_at":"2026-07-05T09:51:11Z","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/2412.13980/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An anisotropic flat band fermion system with a novel dispersion that is linear along one direction and cubic along another is proposed in Phys. Rev. X. 13, 021012 (2023). We study the effects of Coulomb interaction in this fermion system by renormalization group theory and Dyson-Schwinger gap equation. We perform renormalizaton group analysis and find that fermion velocity is always restored along the direction that the fermions take cubic dispersion originally. Accordingly, the system takes the similar behaviors to the two-dimensional Dirac fermion system with Coulomb interaction in the low e","authors_text":"Chang-Jin Zhang, Jing-Rong Wang","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2024-12-18T16:02:40Z","title":"Correlated interaction effects in an anisotropic flat band fermion system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.13980","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":"sha256:30a9050aec5e0ade67f38540990eb939588ae674af6c063c0acf0925fddc64a6","target":"record","created_at":"2026-07-05T09:51:11Z","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":"9b01a24c70d0d1a4f17990dd4951b4c79df52cbdc7a7e4a303f87723539c9e5b","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2024-12-18T16:02:40Z","title_canon_sha256":"e8f8622e22764ebc9229d8013bc95c4cfe06571bdfa15776476edbeeebbec9d1"},"schema_version":"1.0","source":{"id":"2412.13980","kind":"arxiv","version":1}},"canonical_sha256":"74e000327c4daab5089c10869c7d5ab256dee557dfeb0446a3e4c514dc63fa50","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"74e000327c4daab5089c10869c7d5ab256dee557dfeb0446a3e4c514dc63fa50","first_computed_at":"2026-07-05T09:51:11.729204Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:51:11.729204Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wHN39n+3Au4u3QlPe+2tUzsPRGfIvIu4wHoe7alUBrvw0hpTvH2PHUUngMvW8re6U7z6CsoVm71PxfgJdutPDA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:51:11.729684Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.13980","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:30a9050aec5e0ade67f38540990eb939588ae674af6c063c0acf0925fddc64a6","sha256:9e7f40d31b99b21bb10dd68b455fd5a7cebcec4f33dc36000a27483caa49f723"],"state_sha256":"692101c8d58e101ffad7f2f0cc8c6df274aa854bbe492876a871568935871913"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fcEwv0vnMgU87BMU5bZ+VrJH3YJE8b0fNxuFvuQmy4S8wxq2nkrq9pwPek4pJM7SOa0NnJQ2MGCFKhTAW9m7CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T14:17:44.600656Z","bundle_sha256":"21af8e06861a30235198270c5acf2f4eed9dabafd37a53865e594e5b43021238"}}