{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:3RXKB4544NIEGFLNMT6YR3UKXM","short_pith_number":"pith:3RXKB454","canonical_record":{"source":{"id":"1903.01701","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-03-05T07:03:47Z","cross_cats_sorted":[],"title_canon_sha256":"0f0f1cda308f45cce34bb07a60e7bdd2220b7d1a2cf3fe3709a664a40e376268","abstract_canon_sha256":"f6cf447635b88645b7c5a1ab5175fed02ebaf044f23455711bbec109605780ea"},"schema_version":"1.0"},"canonical_sha256":"dc6ea0f3bce35043156d64fd88ee8abb21e468a15aa9c6230bb254edde59c84c","source":{"kind":"arxiv","id":"1903.01701","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.01701","created_at":"2026-07-05T00:57:04Z"},{"alias_kind":"arxiv_version","alias_value":"1903.01701v2","created_at":"2026-07-05T00:57:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.01701","created_at":"2026-07-05T00:57:04Z"},{"alias_kind":"pith_short_12","alias_value":"3RXKB4544NIE","created_at":"2026-07-05T00:57:04Z"},{"alias_kind":"pith_short_16","alias_value":"3RXKB4544NIEGFLN","created_at":"2026-07-05T00:57:04Z"},{"alias_kind":"pith_short_8","alias_value":"3RXKB454","created_at":"2026-07-05T00:57:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:3RXKB4544NIEGFLNMT6YR3UKXM","target":"record","payload":{"canonical_record":{"source":{"id":"1903.01701","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-03-05T07:03:47Z","cross_cats_sorted":[],"title_canon_sha256":"0f0f1cda308f45cce34bb07a60e7bdd2220b7d1a2cf3fe3709a664a40e376268","abstract_canon_sha256":"f6cf447635b88645b7c5a1ab5175fed02ebaf044f23455711bbec109605780ea"},"schema_version":"1.0"},"canonical_sha256":"dc6ea0f3bce35043156d64fd88ee8abb21e468a15aa9c6230bb254edde59c84c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:57:04.208126Z","signature_b64":"d9ru7xUE0LoJUN+LJbiG5pJS1656vR4u1Qn5dVMc+sLPxQjKZ9XvQoSuLonuTNlEyuptyPMkabp6ACXSa4W6DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc6ea0f3bce35043156d64fd88ee8abb21e468a15aa9c6230bb254edde59c84c","last_reissued_at":"2026-07-05T00:57:04.207686Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:57:04.207686Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.01701","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":"2026-07-05T00:57:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gqRS5Hps/NVzOYKJwIJTbdIcO7yGHN2dj+snNe1R0Oko+P3M/nxu0Es/wXRVaPB3F3NvndzUJu20rRY8GAHXBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T00:32:28.096627Z"},"content_sha256":"133d359c28b416acc474fd18ab80eb13a1547cf6aa30476988cd241ea0ead808","schema_version":"1.0","event_id":"sha256:133d359c28b416acc474fd18ab80eb13a1547cf6aa30476988cd241ea0ead808"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:3RXKB4544NIEGFLNMT6YR3UKXM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Metal-insulator transition and dominant $d+id$ pairing symmetry in twisted bilayer graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Tianxing Ma, Tongyun Huang, Wanying Chen, Yonghuan Chu","submitted_at":"2019-03-05T07:03:47Z","abstract_excerpt":"Motivated by recent experimental studies that have found signatures of a correlated insulator phase and tuning superconductivity in twisted bilayer graphene, we study the temperature-dependent conductivity, the spin correlation and the superconducting pairing correlation within a two-orbital Hubbard model on an emergent honeycomb lattice. The evaluation of the temperature dependence of the conductivity demonstrates that there is a metal-insulator transition, and the Mott phase at strong coupling is accompanied by antiferromagnetic order. The electronic correlation drives a $d+id$ superconducti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.01701","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1903.01701/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":"2026-07-05T00:57:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9DgY7KJf9P7rEDUlyEfQd/ZPgSeHCEvx/5/gbzgBXCy1jRb8AhvsVr/pDb57dCgh2aX1NIn+5zf9YzeScjc5Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T00:32:28.097134Z"},"content_sha256":"0090ba474e5b36fff5bc12f4c98c78a792d1cfd21fbce56f81d3ca803f234cf6","schema_version":"1.0","event_id":"sha256:0090ba474e5b36fff5bc12f4c98c78a792d1cfd21fbce56f81d3ca803f234cf6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3RXKB4544NIEGFLNMT6YR3UKXM/bundle.json","state_url":"https://pith.science/pith/3RXKB4544NIEGFLNMT6YR3UKXM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3RXKB4544NIEGFLNMT6YR3UKXM/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":"2026-08-16T00:32:28Z","links":{"resolver":"https://pith.science/pith/3RXKB4544NIEGFLNMT6YR3UKXM","bundle":"https://pith.science/pith/3RXKB4544NIEGFLNMT6YR3UKXM/bundle.json","state":"https://pith.science/pith/3RXKB4544NIEGFLNMT6YR3UKXM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3RXKB4544NIEGFLNMT6YR3UKXM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:3RXKB4544NIEGFLNMT6YR3UKXM","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":"f6cf447635b88645b7c5a1ab5175fed02ebaf044f23455711bbec109605780ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-03-05T07:03:47Z","title_canon_sha256":"0f0f1cda308f45cce34bb07a60e7bdd2220b7d1a2cf3fe3709a664a40e376268"},"schema_version":"1.0","source":{"id":"1903.01701","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.01701","created_at":"2026-07-05T00:57:04Z"},{"alias_kind":"arxiv_version","alias_value":"1903.01701v2","created_at":"2026-07-05T00:57:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.01701","created_at":"2026-07-05T00:57:04Z"},{"alias_kind":"pith_short_12","alias_value":"3RXKB4544NIE","created_at":"2026-07-05T00:57:04Z"},{"alias_kind":"pith_short_16","alias_value":"3RXKB4544NIEGFLN","created_at":"2026-07-05T00:57:04Z"},{"alias_kind":"pith_short_8","alias_value":"3RXKB454","created_at":"2026-07-05T00:57:04Z"}],"graph_snapshots":[{"event_id":"sha256:0090ba474e5b36fff5bc12f4c98c78a792d1cfd21fbce56f81d3ca803f234cf6","target":"graph","created_at":"2026-07-05T00:57:04Z","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/1903.01701/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Motivated by recent experimental studies that have found signatures of a correlated insulator phase and tuning superconductivity in twisted bilayer graphene, we study the temperature-dependent conductivity, the spin correlation and the superconducting pairing correlation within a two-orbital Hubbard model on an emergent honeycomb lattice. The evaluation of the temperature dependence of the conductivity demonstrates that there is a metal-insulator transition, and the Mott phase at strong coupling is accompanied by antiferromagnetic order. The electronic correlation drives a $d+id$ superconducti","authors_text":"Tianxing Ma, Tongyun Huang, Wanying Chen, Yonghuan Chu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-03-05T07:03:47Z","title":"Metal-insulator transition and dominant $d+id$ pairing symmetry in twisted bilayer graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.01701","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":"sha256:133d359c28b416acc474fd18ab80eb13a1547cf6aa30476988cd241ea0ead808","target":"record","created_at":"2026-07-05T00:57:04Z","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":"f6cf447635b88645b7c5a1ab5175fed02ebaf044f23455711bbec109605780ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-03-05T07:03:47Z","title_canon_sha256":"0f0f1cda308f45cce34bb07a60e7bdd2220b7d1a2cf3fe3709a664a40e376268"},"schema_version":"1.0","source":{"id":"1903.01701","kind":"arxiv","version":2}},"canonical_sha256":"dc6ea0f3bce35043156d64fd88ee8abb21e468a15aa9c6230bb254edde59c84c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc6ea0f3bce35043156d64fd88ee8abb21e468a15aa9c6230bb254edde59c84c","first_computed_at":"2026-07-05T00:57:04.207686Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:57:04.207686Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"d9ru7xUE0LoJUN+LJbiG5pJS1656vR4u1Qn5dVMc+sLPxQjKZ9XvQoSuLonuTNlEyuptyPMkabp6ACXSa4W6DA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:57:04.208126Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.01701","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:133d359c28b416acc474fd18ab80eb13a1547cf6aa30476988cd241ea0ead808","sha256:0090ba474e5b36fff5bc12f4c98c78a792d1cfd21fbce56f81d3ca803f234cf6"],"state_sha256":"ad78b91bf8123edb1a244d79de75093758cf359eda09ce4f129e4b5af15eb101"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CJ8Cwj+mamwDw/rl59mUYsKrfZ38heaXHZEMpIwc85Fc3wHweO0ywIcDyuQPY5QnZjQyt55wcsi1BrPeBra4Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T00:32:28.101432Z","bundle_sha256":"60ff16f7830b0ac224ef9d4302402d51a56db9469a50667cb7a4d24a9fab7bfd"}}