{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:KQOP6RXBB433GZYYQZC66G6NTQ","short_pith_number":"pith:KQOP6RXB","canonical_record":{"source":{"id":"2303.12380","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-03-22T08:29:21Z","cross_cats_sorted":[],"title_canon_sha256":"1e37c107165387eb35a75987d560feee979215407930c8870a843dc208d6deb1","abstract_canon_sha256":"9f654ce4531b3ad694ee3e441f9a38963e566a33a842270c1fa335099f790a25"},"schema_version":"1.0"},"canonical_sha256":"541cff46e10f37b367188645ef1bcd9c06ed15b17298876bd1def160efc85292","source":{"kind":"arxiv","id":"2303.12380","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.12380","created_at":"2026-07-05T06:46:46Z"},{"alias_kind":"arxiv_version","alias_value":"2303.12380v2","created_at":"2026-07-05T06:46:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.12380","created_at":"2026-07-05T06:46:46Z"},{"alias_kind":"pith_short_12","alias_value":"KQOP6RXBB433","created_at":"2026-07-05T06:46:46Z"},{"alias_kind":"pith_short_16","alias_value":"KQOP6RXBB433GZYY","created_at":"2026-07-05T06:46:46Z"},{"alias_kind":"pith_short_8","alias_value":"KQOP6RXB","created_at":"2026-07-05T06:46:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:KQOP6RXBB433GZYYQZC66G6NTQ","target":"record","payload":{"canonical_record":{"source":{"id":"2303.12380","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-03-22T08:29:21Z","cross_cats_sorted":[],"title_canon_sha256":"1e37c107165387eb35a75987d560feee979215407930c8870a843dc208d6deb1","abstract_canon_sha256":"9f654ce4531b3ad694ee3e441f9a38963e566a33a842270c1fa335099f790a25"},"schema_version":"1.0"},"canonical_sha256":"541cff46e10f37b367188645ef1bcd9c06ed15b17298876bd1def160efc85292","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:46:46.955874Z","signature_b64":"5ZCeAoulRHG6E7y86mz67RNnjnE/kdEctY02B7pXs8HU8jx8gbyFQlRxuHhbldmW+fXR3llTht+YFApNs9HkBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"541cff46e10f37b367188645ef1bcd9c06ed15b17298876bd1def160efc85292","last_reissued_at":"2026-07-05T06:46:46.955387Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:46:46.955387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.12380","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":"2026-07-05T06:46:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sO8+45qbSjA7us5UArpQkcPLeAb2V6gKx+KRfhJf3G4U1lns15toWRl0/TvuYV2YnRlmkDzBU6eLThjH/KiVDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T14:33:40.256852Z"},"content_sha256":"29e551eecddf5a800796570ed56060692666c5edd1c9d8b93ef61dc43df6d5b4","schema_version":"1.0","event_id":"sha256:29e551eecddf5a800796570ed56060692666c5edd1c9d8b93ef61dc43df6d5b4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:KQOP6RXBB433GZYYQZC66G6NTQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Twisted bilayer graphene reveals its flat bands under spin pumping","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Jihang Zhu, Lassaad Mandhour, Sonia Haddad, Takeo Kato","submitted_at":"2023-03-22T08:29:21Z","abstract_excerpt":"The salient property of the electronic band structure of twisted bilayer graphene (TBG), at the so-called magic angle (MA), is the emergence of flat bands around the charge neutrality point. These bands are associated with the observed superconducting phases and the correlated insulating states. Scanning tunneling microscopy combined with angle resolved photoemission spectroscopy are usually used to visualize the flatness of the band structure of TBG at the MA. Here, we theoretically argue that spin pumping (SP) provides a direct probe of the flat bands of TBG and an accurate determination of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.12380","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/2303.12380/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":"2026-07-05T06:46:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W2Jvy+m/UkZ45+Ife/MmNKvptGHbVb5FJkIoeRTxRWEfMc/FJuRLOR8xdaDWozbiD3v53jHN1nYLHQdG/fprAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T14:33:40.257764Z"},"content_sha256":"352bdd1e7af30782ad5c13e74a89f8dc6ddd1866960834962260692f2c73b2ff","schema_version":"1.0","event_id":"sha256:352bdd1e7af30782ad5c13e74a89f8dc6ddd1866960834962260692f2c73b2ff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KQOP6RXBB433GZYYQZC66G6NTQ/bundle.json","state_url":"https://pith.science/pith/KQOP6RXBB433GZYYQZC66G6NTQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KQOP6RXBB433GZYYQZC66G6NTQ/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":"2026-08-19T14:33:40Z","links":{"resolver":"https://pith.science/pith/KQOP6RXBB433GZYYQZC66G6NTQ","bundle":"https://pith.science/pith/KQOP6RXBB433GZYYQZC66G6NTQ/bundle.json","state":"https://pith.science/pith/KQOP6RXBB433GZYYQZC66G6NTQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KQOP6RXBB433GZYYQZC66G6NTQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:KQOP6RXBB433GZYYQZC66G6NTQ","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":"9f654ce4531b3ad694ee3e441f9a38963e566a33a842270c1fa335099f790a25","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-03-22T08:29:21Z","title_canon_sha256":"1e37c107165387eb35a75987d560feee979215407930c8870a843dc208d6deb1"},"schema_version":"1.0","source":{"id":"2303.12380","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.12380","created_at":"2026-07-05T06:46:46Z"},{"alias_kind":"arxiv_version","alias_value":"2303.12380v2","created_at":"2026-07-05T06:46:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.12380","created_at":"2026-07-05T06:46:46Z"},{"alias_kind":"pith_short_12","alias_value":"KQOP6RXBB433","created_at":"2026-07-05T06:46:46Z"},{"alias_kind":"pith_short_16","alias_value":"KQOP6RXBB433GZYY","created_at":"2026-07-05T06:46:46Z"},{"alias_kind":"pith_short_8","alias_value":"KQOP6RXB","created_at":"2026-07-05T06:46:46Z"}],"graph_snapshots":[{"event_id":"sha256:352bdd1e7af30782ad5c13e74a89f8dc6ddd1866960834962260692f2c73b2ff","target":"graph","created_at":"2026-07-05T06:46:46Z","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/2303.12380/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The salient property of the electronic band structure of twisted bilayer graphene (TBG), at the so-called magic angle (MA), is the emergence of flat bands around the charge neutrality point. These bands are associated with the observed superconducting phases and the correlated insulating states. Scanning tunneling microscopy combined with angle resolved photoemission spectroscopy are usually used to visualize the flatness of the band structure of TBG at the MA. Here, we theoretically argue that spin pumping (SP) provides a direct probe of the flat bands of TBG and an accurate determination of ","authors_text":"Jihang Zhu, Lassaad Mandhour, Sonia Haddad, Takeo Kato","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-03-22T08:29:21Z","title":"Twisted bilayer graphene reveals its flat bands under spin pumping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.12380","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":"sha256:29e551eecddf5a800796570ed56060692666c5edd1c9d8b93ef61dc43df6d5b4","target":"record","created_at":"2026-07-05T06:46:46Z","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":"9f654ce4531b3ad694ee3e441f9a38963e566a33a842270c1fa335099f790a25","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-03-22T08:29:21Z","title_canon_sha256":"1e37c107165387eb35a75987d560feee979215407930c8870a843dc208d6deb1"},"schema_version":"1.0","source":{"id":"2303.12380","kind":"arxiv","version":2}},"canonical_sha256":"541cff46e10f37b367188645ef1bcd9c06ed15b17298876bd1def160efc85292","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"541cff46e10f37b367188645ef1bcd9c06ed15b17298876bd1def160efc85292","first_computed_at":"2026-07-05T06:46:46.955387Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:46:46.955387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5ZCeAoulRHG6E7y86mz67RNnjnE/kdEctY02B7pXs8HU8jx8gbyFQlRxuHhbldmW+fXR3llTht+YFApNs9HkBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:46:46.955874Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.12380","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:29e551eecddf5a800796570ed56060692666c5edd1c9d8b93ef61dc43df6d5b4","sha256:352bdd1e7af30782ad5c13e74a89f8dc6ddd1866960834962260692f2c73b2ff"],"state_sha256":"7c6ef29071915a4fad43a1bb1f25763879c54849a46c160e24c71f392bb123e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e3BWIctqQDqKP7LifGoQJfCzR4/yuK3cWDqAqiR24o6738t+7Irx8FjsGvRM+smtFmbl2YVywIwKonYb60DVDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T14:33:40.264047Z","bundle_sha256":"7f3164011e634dc47d047a09121d94261c38835ba1f8b4590cd53318a49c75ac"}}