{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:ASDMBM36TUTZNENK5UJCCQGOQM","short_pith_number":"pith:ASDMBM36","canonical_record":{"source":{"id":"1305.5093","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-05-22T11:41:28Z","cross_cats_sorted":[],"title_canon_sha256":"0e226c9d324063a852ec52cbc015d784b5ea9feb96410461bc9ad011844bb481","abstract_canon_sha256":"5b43bfec0aa65ba41b1ff76b931fb9af8d6aad997eb82db66dc9ba97a713ccf7"},"schema_version":"1.0"},"canonical_sha256":"0486c0b37e9d279691aaed122140ce8315dedfd33c079eac2246fbc6e640bc00","source":{"kind":"arxiv","id":"1305.5093","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.5093","created_at":"2026-05-18T01:49:47Z"},{"alias_kind":"arxiv_version","alias_value":"1305.5093v1","created_at":"2026-05-18T01:49:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.5093","created_at":"2026-05-18T01:49:47Z"},{"alias_kind":"pith_short_12","alias_value":"ASDMBM36TUTZ","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"ASDMBM36TUTZNENK","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"ASDMBM36","created_at":"2026-05-18T12:27:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:ASDMBM36TUTZNENK5UJCCQGOQM","target":"record","payload":{"canonical_record":{"source":{"id":"1305.5093","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-05-22T11:41:28Z","cross_cats_sorted":[],"title_canon_sha256":"0e226c9d324063a852ec52cbc015d784b5ea9feb96410461bc9ad011844bb481","abstract_canon_sha256":"5b43bfec0aa65ba41b1ff76b931fb9af8d6aad997eb82db66dc9ba97a713ccf7"},"schema_version":"1.0"},"canonical_sha256":"0486c0b37e9d279691aaed122140ce8315dedfd33c079eac2246fbc6e640bc00","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:47.892035Z","signature_b64":"p7AMv8gdpXqwDvyKqJJnjlfvmCE4aAp1iEcmfKcDH2uZPuPoQ2yeNnGu5RajjBsHmPYrTMcp91wyrJR44DNzBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0486c0b37e9d279691aaed122140ce8315dedfd33c079eac2246fbc6e640bc00","last_reissued_at":"2026-05-18T01:49:47.891517Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:47.891517Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.5093","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":"2026-05-18T01:49:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5L9JROF568NFzAkpvcCaVv/jyhjfvFSZNZ1vbV4azqOOaDTIckCmgogch64YLavFo23J13HK2GfOKe9eaACQBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:13:07.335236Z"},"content_sha256":"8ada1f2c40e79567828a7cf05078210853479fe80fc433a27104d4ae4ce0d3fb","schema_version":"1.0","event_id":"sha256:8ada1f2c40e79567828a7cf05078210853479fe80fc433a27104d4ae4ce0d3fb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:ASDMBM36TUTZNENK5UJCCQGOQM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electric control of the magnetization in BiFeO$_3$/LaFeO$_3$ superlattices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Jacek C. Wojdel, Jorge Iniguez, Philippe Ghosez, Zeila Zanolli","submitted_at":"2013-05-22T11:41:28Z","abstract_excerpt":"First-principles techniques are used to investigate the behavior of BiFeO$_{3}$/LaFeO$_{3}$ perovskite oxide superlattices epitaxially grown on a (001)-SrTiO$_3$ substrate. The calculations show that 1/1 superlattices exhibit a $Pmc2_1$ ground state combining a trilinear coupling of one polar and two oxygen rotational lattice modes, and weak ferromagnetism. The microscopic mechanism allowing one to manipulate the magnetization with an electric field in such systems is presented and its dependence on strain and chemical substitution is discussed. BiFeO$_{3}$/LaFeO$_{3}$ artificial superlattices"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.5093","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":"2026-05-18T01:49:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yl/xgTS1jCMtADKp8BMjiyayzLprOMrsw8TDyxsCabNyGoAAyCwjsWj9nKVI8MRIam+F672KC5L8E0XUTIwbAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:13:07.335603Z"},"content_sha256":"75cac12d052b9e45d0f0cedbfae27dd3adf1821545a5e69819a9d6a6a737ee0b","schema_version":"1.0","event_id":"sha256:75cac12d052b9e45d0f0cedbfae27dd3adf1821545a5e69819a9d6a6a737ee0b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ASDMBM36TUTZNENK5UJCCQGOQM/bundle.json","state_url":"https://pith.science/pith/ASDMBM36TUTZNENK5UJCCQGOQM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ASDMBM36TUTZNENK5UJCCQGOQM/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":"2026-05-30T01:13:07Z","links":{"resolver":"https://pith.science/pith/ASDMBM36TUTZNENK5UJCCQGOQM","bundle":"https://pith.science/pith/ASDMBM36TUTZNENK5UJCCQGOQM/bundle.json","state":"https://pith.science/pith/ASDMBM36TUTZNENK5UJCCQGOQM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ASDMBM36TUTZNENK5UJCCQGOQM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ASDMBM36TUTZNENK5UJCCQGOQM","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":"5b43bfec0aa65ba41b1ff76b931fb9af8d6aad997eb82db66dc9ba97a713ccf7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-05-22T11:41:28Z","title_canon_sha256":"0e226c9d324063a852ec52cbc015d784b5ea9feb96410461bc9ad011844bb481"},"schema_version":"1.0","source":{"id":"1305.5093","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.5093","created_at":"2026-05-18T01:49:47Z"},{"alias_kind":"arxiv_version","alias_value":"1305.5093v1","created_at":"2026-05-18T01:49:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.5093","created_at":"2026-05-18T01:49:47Z"},{"alias_kind":"pith_short_12","alias_value":"ASDMBM36TUTZ","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"ASDMBM36TUTZNENK","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"ASDMBM36","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:75cac12d052b9e45d0f0cedbfae27dd3adf1821545a5e69819a9d6a6a737ee0b","target":"graph","created_at":"2026-05-18T01:49:47Z","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":"First-principles techniques are used to investigate the behavior of BiFeO$_{3}$/LaFeO$_{3}$ perovskite oxide superlattices epitaxially grown on a (001)-SrTiO$_3$ substrate. The calculations show that 1/1 superlattices exhibit a $Pmc2_1$ ground state combining a trilinear coupling of one polar and two oxygen rotational lattice modes, and weak ferromagnetism. The microscopic mechanism allowing one to manipulate the magnetization with an electric field in such systems is presented and its dependence on strain and chemical substitution is discussed. BiFeO$_{3}$/LaFeO$_{3}$ artificial superlattices","authors_text":"Jacek C. Wojdel, Jorge Iniguez, Philippe Ghosez, Zeila Zanolli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-05-22T11:41:28Z","title":"Electric control of the magnetization in BiFeO$_3$/LaFeO$_3$ superlattices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.5093","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":"sha256:8ada1f2c40e79567828a7cf05078210853479fe80fc433a27104d4ae4ce0d3fb","target":"record","created_at":"2026-05-18T01:49:47Z","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":"5b43bfec0aa65ba41b1ff76b931fb9af8d6aad997eb82db66dc9ba97a713ccf7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-05-22T11:41:28Z","title_canon_sha256":"0e226c9d324063a852ec52cbc015d784b5ea9feb96410461bc9ad011844bb481"},"schema_version":"1.0","source":{"id":"1305.5093","kind":"arxiv","version":1}},"canonical_sha256":"0486c0b37e9d279691aaed122140ce8315dedfd33c079eac2246fbc6e640bc00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0486c0b37e9d279691aaed122140ce8315dedfd33c079eac2246fbc6e640bc00","first_computed_at":"2026-05-18T01:49:47.891517Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:47.891517Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p7AMv8gdpXqwDvyKqJJnjlfvmCE4aAp1iEcmfKcDH2uZPuPoQ2yeNnGu5RajjBsHmPYrTMcp91wyrJR44DNzBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:47.892035Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.5093","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ada1f2c40e79567828a7cf05078210853479fe80fc433a27104d4ae4ce0d3fb","sha256:75cac12d052b9e45d0f0cedbfae27dd3adf1821545a5e69819a9d6a6a737ee0b"],"state_sha256":"c9f764646e2c06ed09eef9fa048a69699346f4456d5edf8697fbbfb207c10e70"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aQ8nExSO5DpKMUwbyWEddybZIQpPHgdPiN5IIX2ktX0xZWJShQFnQ0HnR6lgIPruTXUdM6sRVvhU4scX4VobAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T01:13:07.337585Z","bundle_sha256":"b8f5428017ac6a82dcbd155027c365b94e9a4bc003c1cf79b16b87d64015c928"}}