{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:2WVXN447UL3JA2Z7SRDJ2OE7I2","short_pith_number":"pith:2WVXN447","canonical_record":{"source":{"id":"2411.16188","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-11-25T08:40:13Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"f5a49601de39f602d9f2bdabacc591763f2e2ab74bcdd427c55b1914c7005951","abstract_canon_sha256":"1eb4e35b3bcefea78fe99673e9c72656c23b51cf7c558bac9a162d2828653a27"},"schema_version":"1.0"},"canonical_sha256":"d5ab76f39fa2f6906b3f94469d389f468a5064380b5eca506dc362e78c086fcf","source":{"kind":"arxiv","id":"2411.16188","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.16188","created_at":"2026-07-05T10:23:58Z"},{"alias_kind":"arxiv_version","alias_value":"2411.16188v3","created_at":"2026-07-05T10:23:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.16188","created_at":"2026-07-05T10:23:58Z"},{"alias_kind":"pith_short_12","alias_value":"2WVXN447UL3J","created_at":"2026-07-05T10:23:58Z"},{"alias_kind":"pith_short_16","alias_value":"2WVXN447UL3JA2Z7","created_at":"2026-07-05T10:23:58Z"},{"alias_kind":"pith_short_8","alias_value":"2WVXN447","created_at":"2026-07-05T10:23:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:2WVXN447UL3JA2Z7SRDJ2OE7I2","target":"record","payload":{"canonical_record":{"source":{"id":"2411.16188","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-11-25T08:40:13Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"f5a49601de39f602d9f2bdabacc591763f2e2ab74bcdd427c55b1914c7005951","abstract_canon_sha256":"1eb4e35b3bcefea78fe99673e9c72656c23b51cf7c558bac9a162d2828653a27"},"schema_version":"1.0"},"canonical_sha256":"d5ab76f39fa2f6906b3f94469d389f468a5064380b5eca506dc362e78c086fcf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:23:58.199759Z","signature_b64":"CSXeX4FYO7r07lbnVAQCjBVfjS1Bqb9otKYjPfkTtQUGtHyIHa9QAO08wDLjRrd4oYo0cHNXsnOOiN77j0AdBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5ab76f39fa2f6906b3f94469d389f468a5064380b5eca506dc362e78c086fcf","last_reissued_at":"2026-07-05T10:23:58.199095Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:23:58.199095Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.16188","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:23:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3SLO+x/YQtf4dNBBAlLLTT7P4HU14D3tcEx4N2sVtSVsuZlTXrEo6UF5/3Ta7v2uOokwTRI8fdaXQBRC24B5Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T02:16:07.806230Z"},"content_sha256":"58abe570d73e37b1a10d18e0169dbae351bcf70ee64b58e9b209718a24ad8ce6","schema_version":"1.0","event_id":"sha256:58abe570d73e37b1a10d18e0169dbae351bcf70ee64b58e9b209718a24ad8ce6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:2WVXN447UL3JA2Z7SRDJ2OE7I2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin-split flat bands at the band edge and two-dimensional hole gases towards quantum Hall effect in altermagnetic CoF$_2$","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Bang-Gui Liu, Bo-Wen Yu","submitted_at":"2024-11-25T08:40:13Z","abstract_excerpt":"Altermagnetic phase is recently found as a new magnetic phase in addition to the conventional collinear spin orders, and great efforts have been made to explore novel effects and potential applications in such materials. Here, we show that there are robust altermagnetic spin-split flat bands near the valence band edge in rutile CoF$_2$ through first-principles investigation. It is uncovered that the magnetic moments can remain in the z axis because of the magnetocrystalline energy due to the spin-orbits coupling and the spin orientation can be made more stable by magnetic field applied in the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.16188","kind":"arxiv","version":3},"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/2411.16188/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":"2026-07-05T10:23:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rpdgokyFx2UTjTK1qN7LvPXEvIPqf03lhPp376RGsP+khohwPyvygNImhJS3Q8njay55bDjaT6KhT6FcFl1oDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T02:16:07.807145Z"},"content_sha256":"2cf693e9e3640ebf63b5ade587693bda02c6582d5b4ccce696423dd1f39b4313","schema_version":"1.0","event_id":"sha256:2cf693e9e3640ebf63b5ade587693bda02c6582d5b4ccce696423dd1f39b4313"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2WVXN447UL3JA2Z7SRDJ2OE7I2/bundle.json","state_url":"https://pith.science/pith/2WVXN447UL3JA2Z7SRDJ2OE7I2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2WVXN447UL3JA2Z7SRDJ2OE7I2/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":"2026-08-13T02:16:07Z","links":{"resolver":"https://pith.science/pith/2WVXN447UL3JA2Z7SRDJ2OE7I2","bundle":"https://pith.science/pith/2WVXN447UL3JA2Z7SRDJ2OE7I2/bundle.json","state":"https://pith.science/pith/2WVXN447UL3JA2Z7SRDJ2OE7I2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2WVXN447UL3JA2Z7SRDJ2OE7I2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:2WVXN447UL3JA2Z7SRDJ2OE7I2","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":"1eb4e35b3bcefea78fe99673e9c72656c23b51cf7c558bac9a162d2828653a27","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-11-25T08:40:13Z","title_canon_sha256":"f5a49601de39f602d9f2bdabacc591763f2e2ab74bcdd427c55b1914c7005951"},"schema_version":"1.0","source":{"id":"2411.16188","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.16188","created_at":"2026-07-05T10:23:58Z"},{"alias_kind":"arxiv_version","alias_value":"2411.16188v3","created_at":"2026-07-05T10:23:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.16188","created_at":"2026-07-05T10:23:58Z"},{"alias_kind":"pith_short_12","alias_value":"2WVXN447UL3J","created_at":"2026-07-05T10:23:58Z"},{"alias_kind":"pith_short_16","alias_value":"2WVXN447UL3JA2Z7","created_at":"2026-07-05T10:23:58Z"},{"alias_kind":"pith_short_8","alias_value":"2WVXN447","created_at":"2026-07-05T10:23:58Z"}],"graph_snapshots":[{"event_id":"sha256:2cf693e9e3640ebf63b5ade587693bda02c6582d5b4ccce696423dd1f39b4313","target":"graph","created_at":"2026-07-05T10:23:58Z","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/2411.16188/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Altermagnetic phase is recently found as a new magnetic phase in addition to the conventional collinear spin orders, and great efforts have been made to explore novel effects and potential applications in such materials. Here, we show that there are robust altermagnetic spin-split flat bands near the valence band edge in rutile CoF$_2$ through first-principles investigation. It is uncovered that the magnetic moments can remain in the z axis because of the magnetocrystalline energy due to the spin-orbits coupling and the spin orientation can be made more stable by magnetic field applied in the ","authors_text":"Bang-Gui Liu, Bo-Wen Yu","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-11-25T08:40:13Z","title":"Spin-split flat bands at the band edge and two-dimensional hole gases towards quantum Hall effect in altermagnetic CoF$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.16188","kind":"arxiv","version":3},"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":"sha256:58abe570d73e37b1a10d18e0169dbae351bcf70ee64b58e9b209718a24ad8ce6","target":"record","created_at":"2026-07-05T10:23:58Z","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":"1eb4e35b3bcefea78fe99673e9c72656c23b51cf7c558bac9a162d2828653a27","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-11-25T08:40:13Z","title_canon_sha256":"f5a49601de39f602d9f2bdabacc591763f2e2ab74bcdd427c55b1914c7005951"},"schema_version":"1.0","source":{"id":"2411.16188","kind":"arxiv","version":3}},"canonical_sha256":"d5ab76f39fa2f6906b3f94469d389f468a5064380b5eca506dc362e78c086fcf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5ab76f39fa2f6906b3f94469d389f468a5064380b5eca506dc362e78c086fcf","first_computed_at":"2026-07-05T10:23:58.199095Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:23:58.199095Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CSXeX4FYO7r07lbnVAQCjBVfjS1Bqb9otKYjPfkTtQUGtHyIHa9QAO08wDLjRrd4oYo0cHNXsnOOiN77j0AdBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:23:58.199759Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.16188","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:58abe570d73e37b1a10d18e0169dbae351bcf70ee64b58e9b209718a24ad8ce6","sha256:2cf693e9e3640ebf63b5ade587693bda02c6582d5b4ccce696423dd1f39b4313"],"state_sha256":"2d2d277c820b9f5863b7d05abfe2bf04a688bd45abe9193882aac9edf80f11dd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pmW9F+LvsZeKdKCPAgUTiU7hV0Fg8j9Q4mGM1oQ6hOct65kQm2z+wVsOpWurSxWKuVxwvhcqmTw4voxO9FLpAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T02:16:07.814157Z","bundle_sha256":"b269b716a06f11e744fef96d7baea892cbee6b1561d85b6df170c281af425767"}}