{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:VYJ4JSUKRIZPNXP6JNQ7ENLJLO","short_pith_number":"pith:VYJ4JSUK","canonical_record":{"source":{"id":"1006.1194","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-06-07T07:48:44Z","cross_cats_sorted":[],"title_canon_sha256":"caa6c82db304895c9d5f4778648bce0c1740de9d2494a0c0b9a68f28470106c6","abstract_canon_sha256":"bbd3dab4409c549ca079944dc630ed29fb56880e33328d0db35df3fbfa39ea8a"},"schema_version":"1.0"},"canonical_sha256":"ae13c4ca8a8a32f6ddfe4b61f235695b8d730cfaf3d7df5fe6aeaaac1ff2872b","source":{"kind":"arxiv","id":"1006.1194","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.1194","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"arxiv_version","alias_value":"1006.1194v1","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.1194","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"pith_short_12","alias_value":"VYJ4JSUKRIZP","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"VYJ4JSUKRIZPNXP6","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"VYJ4JSUK","created_at":"2026-05-18T12:26:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:VYJ4JSUKRIZPNXP6JNQ7ENLJLO","target":"record","payload":{"canonical_record":{"source":{"id":"1006.1194","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-06-07T07:48:44Z","cross_cats_sorted":[],"title_canon_sha256":"caa6c82db304895c9d5f4778648bce0c1740de9d2494a0c0b9a68f28470106c6","abstract_canon_sha256":"bbd3dab4409c549ca079944dc630ed29fb56880e33328d0db35df3fbfa39ea8a"},"schema_version":"1.0"},"canonical_sha256":"ae13c4ca8a8a32f6ddfe4b61f235695b8d730cfaf3d7df5fe6aeaaac1ff2872b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:56.875907Z","signature_b64":"iHrdGfjPSnu9zW3nXjvpXF/UjeCwUVpOA6qGigUKnx9g5+Q2KTIO8Cm8gqVKwt9yL/+CiNhyDq6uwKSNRO0QBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae13c4ca8a8a32f6ddfe4b61f235695b8d730cfaf3d7df5fe6aeaaac1ff2872b","last_reissued_at":"2026-05-18T02:06:56.875043Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:56.875043Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1006.1194","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":"2026-05-18T02:06:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zfD9dZj27I0eP8kd7Hg8B5TfhVqWmzl5u9FmRlB99IxjeNEOvQokMddxvZixLEZTUKSLWr9xbfvtdsqkKrVBAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T04:01:57.040154Z"},"content_sha256":"303bec87f1a4b20ed89a9dd0219988a22d49e66b226ddf3834e7c19d75b2c709","schema_version":"1.0","event_id":"sha256:303bec87f1a4b20ed89a9dd0219988a22d49e66b226ddf3834e7c19d75b2c709"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:VYJ4JSUKRIZPNXP6JNQ7ENLJLO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interface ferromagnetism and orbital reconstruction in BiFeO3- La0.7Sr0.3MnO3 heterostructures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"C. -C. Kao, C. -H. Yang, D. A. Arena, J. -S. Lee, J. -X. Zhang, L. W. Martin, M. D. Rossell, M. Huijben, M. J. Lee, P. Yu, Q. He, Q. M. Ramasse, R. Erni, R. Ramesh, S. Okamoto, S. Y. Yang, Y.-H. Chu","submitted_at":"2010-06-07T07:48:44Z","abstract_excerpt":"We report the formation of a novel ferromagnetic state in the antiferromagnet BiFeO3 at the interface with La0.7Sr0.3MnO3. Using x-ray magnetic circular dichroism at Mn and Fe L2,3-edges, we discovered that the development of this ferromagnetic spin structure is strongly associated with the onset of a significant exchange bias. Our results demonstrate that the magnetic state is directly related with an electronic orbital reconstruction at the interface, which is supported by the linearly polarized x-ray absorption measurement at oxygen K-edge."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.1194","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":""},"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":"2026-05-18T02:06:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aj2XzTCNaEAtvWyUehwpUMMMjC38mJty80x/ZqeTi6wtBah+8qQwSV0cNdTfZAI2NDnf7uZsnKB6K/xMtCLkBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T04:01:57.040934Z"},"content_sha256":"0c51fdf4068253cacc448af808e081f21a1e79b5825984ec968923393bbebac8","schema_version":"1.0","event_id":"sha256:0c51fdf4068253cacc448af808e081f21a1e79b5825984ec968923393bbebac8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VYJ4JSUKRIZPNXP6JNQ7ENLJLO/bundle.json","state_url":"https://pith.science/pith/VYJ4JSUKRIZPNXP6JNQ7ENLJLO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VYJ4JSUKRIZPNXP6JNQ7ENLJLO/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":"2026-06-05T04:01:57Z","links":{"resolver":"https://pith.science/pith/VYJ4JSUKRIZPNXP6JNQ7ENLJLO","bundle":"https://pith.science/pith/VYJ4JSUKRIZPNXP6JNQ7ENLJLO/bundle.json","state":"https://pith.science/pith/VYJ4JSUKRIZPNXP6JNQ7ENLJLO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VYJ4JSUKRIZPNXP6JNQ7ENLJLO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:VYJ4JSUKRIZPNXP6JNQ7ENLJLO","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":"bbd3dab4409c549ca079944dc630ed29fb56880e33328d0db35df3fbfa39ea8a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-06-07T07:48:44Z","title_canon_sha256":"caa6c82db304895c9d5f4778648bce0c1740de9d2494a0c0b9a68f28470106c6"},"schema_version":"1.0","source":{"id":"1006.1194","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.1194","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"arxiv_version","alias_value":"1006.1194v1","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.1194","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"pith_short_12","alias_value":"VYJ4JSUKRIZP","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"VYJ4JSUKRIZPNXP6","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"VYJ4JSUK","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:0c51fdf4068253cacc448af808e081f21a1e79b5825984ec968923393bbebac8","target":"graph","created_at":"2026-05-18T02:06:56Z","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":"We report the formation of a novel ferromagnetic state in the antiferromagnet BiFeO3 at the interface with La0.7Sr0.3MnO3. Using x-ray magnetic circular dichroism at Mn and Fe L2,3-edges, we discovered that the development of this ferromagnetic spin structure is strongly associated with the onset of a significant exchange bias. Our results demonstrate that the magnetic state is directly related with an electronic orbital reconstruction at the interface, which is supported by the linearly polarized x-ray absorption measurement at oxygen K-edge.","authors_text":"C. -C. Kao, C. -H. Yang, D. A. Arena, J. -S. Lee, J. -X. Zhang, L. W. Martin, M. D. Rossell, M. Huijben, M. J. Lee, P. Yu, Q. He, Q. M. Ramasse, R. Erni, R. Ramesh, S. Okamoto, S. Y. Yang, Y.-H. Chu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-06-07T07:48:44Z","title":"Interface ferromagnetism and orbital reconstruction in BiFeO3- La0.7Sr0.3MnO3 heterostructures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.1194","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":"sha256:303bec87f1a4b20ed89a9dd0219988a22d49e66b226ddf3834e7c19d75b2c709","target":"record","created_at":"2026-05-18T02:06:56Z","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":"bbd3dab4409c549ca079944dc630ed29fb56880e33328d0db35df3fbfa39ea8a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-06-07T07:48:44Z","title_canon_sha256":"caa6c82db304895c9d5f4778648bce0c1740de9d2494a0c0b9a68f28470106c6"},"schema_version":"1.0","source":{"id":"1006.1194","kind":"arxiv","version":1}},"canonical_sha256":"ae13c4ca8a8a32f6ddfe4b61f235695b8d730cfaf3d7df5fe6aeaaac1ff2872b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae13c4ca8a8a32f6ddfe4b61f235695b8d730cfaf3d7df5fe6aeaaac1ff2872b","first_computed_at":"2026-05-18T02:06:56.875043Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:06:56.875043Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iHrdGfjPSnu9zW3nXjvpXF/UjeCwUVpOA6qGigUKnx9g5+Q2KTIO8Cm8gqVKwt9yL/+CiNhyDq6uwKSNRO0QBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:06:56.875907Z","signed_message":"canonical_sha256_bytes"},"source_id":"1006.1194","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:303bec87f1a4b20ed89a9dd0219988a22d49e66b226ddf3834e7c19d75b2c709","sha256:0c51fdf4068253cacc448af808e081f21a1e79b5825984ec968923393bbebac8"],"state_sha256":"d5dea105af851acf67dddc2b11e13c4c5233dc95406d5a9006d6a7c1c9356e33"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O6nCVn71HzflW0dmaF96yogjrdaMRjzhJf3Qw5LxbOmIVDn7/B8d2hgJDMGsXfzAz8+f1tRgjNH1a2phmAvoCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T04:01:57.044698Z","bundle_sha256":"67f40ebbe31a100afea226c026160e72dd697ef841d6b3d38096ff84b85abb5e"}}