{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:ZLRI6ZZISP2B6TYM3SXGWAEDR3","short_pith_number":"pith:ZLRI6ZZI","canonical_record":{"source":{"id":"1304.5394","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-04-19T12:29:43Z","cross_cats_sorted":[],"title_canon_sha256":"180330aa0fbea4a1bbb834698899ddcf5877895a02b22bc730643adbdea0a4ad","abstract_canon_sha256":"1b0755ae6e46537ac001f7d771eb3f9c42bebdec07558209120ee76e16ecee70"},"schema_version":"1.0"},"canonical_sha256":"cae28f672893f41f4f0cdcae6b00838ed6f92c37e98c72723e137dfb804204c0","source":{"kind":"arxiv","id":"1304.5394","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.5394","created_at":"2026-05-18T03:26:51Z"},{"alias_kind":"arxiv_version","alias_value":"1304.5394v1","created_at":"2026-05-18T03:26:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.5394","created_at":"2026-05-18T03:26:51Z"},{"alias_kind":"pith_short_12","alias_value":"ZLRI6ZZISP2B","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"ZLRI6ZZISP2B6TYM","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"ZLRI6ZZI","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:ZLRI6ZZISP2B6TYM3SXGWAEDR3","target":"record","payload":{"canonical_record":{"source":{"id":"1304.5394","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-04-19T12:29:43Z","cross_cats_sorted":[],"title_canon_sha256":"180330aa0fbea4a1bbb834698899ddcf5877895a02b22bc730643adbdea0a4ad","abstract_canon_sha256":"1b0755ae6e46537ac001f7d771eb3f9c42bebdec07558209120ee76e16ecee70"},"schema_version":"1.0"},"canonical_sha256":"cae28f672893f41f4f0cdcae6b00838ed6f92c37e98c72723e137dfb804204c0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:26:51.972828Z","signature_b64":"DtaRG4nayb/JtR7y27Nbv7LTplXMBk3p2Huct66rpGu+ARd0YTDGmoKxEeemDDTCcx00k643s9ax8zc+YvH/CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cae28f672893f41f4f0cdcae6b00838ed6f92c37e98c72723e137dfb804204c0","last_reissued_at":"2026-05-18T03:26:51.972233Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:26:51.972233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.5394","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":"2026-05-18T03:26:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m5ve2qHLU3c3JMADL0NiW//f4RfxRNbjOYzcpJnNDGMbUoYn0XnyyZEA4rVV1DHv7Xff/soiuKXeHJesbK67Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:35:07.728480Z"},"content_sha256":"63742908a159b26f860986400d470b058a5f35739a5660f7f0944673c54d5404","schema_version":"1.0","event_id":"sha256:63742908a159b26f860986400d470b058a5f35739a5660f7f0944673c54d5404"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:ZLRI6ZZISP2B6TYM3SXGWAEDR3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interfacial Coupling in Multiferroic-Ferromagnet Heterostructures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"D. T. Pierce, E. Arenholz, J. D. Clarkson, Jian Liu, J. T. Heron, J. Unguris, M. Trassin, R. J. Paull, S. R. Bowden","submitted_at":"2013-04-19T12:29:43Z","abstract_excerpt":"We report local probe investigations of the magnetic interaction between BiFeO3 films and a ferromagnetic Co0.9Fe0.1 layer. Within the constraints of intralayer exchange coupling in the Co0.9Fe0.1, the multiferroic imprint in the ferromagnet results in a collinear arrangement of the local magnetization and the in-plane BiFeO3 ferroelectric polarization. The magnetic anisotropy is uniaxial, and an in-plane effective coupling field of order 10 mT is derived. Measurements as a function of multiferroic layer thickness show that the influence of the multiferroic layer on the magnetic layer becomes "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.5394","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":"2026-05-18T03:26:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ijQgm/zb1vnCozFGkVQKRpJmm17IZt2wFkoMktK9tywMOypPsPT5VaE8Ee88ozcU5Lj8wIqgBYVEOxWFb90SAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:35:07.729142Z"},"content_sha256":"b1d31879752760365d2f9c53e4a0e3fe403e32886fa7655404e7aea57510c160","schema_version":"1.0","event_id":"sha256:b1d31879752760365d2f9c53e4a0e3fe403e32886fa7655404e7aea57510c160"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZLRI6ZZISP2B6TYM3SXGWAEDR3/bundle.json","state_url":"https://pith.science/pith/ZLRI6ZZISP2B6TYM3SXGWAEDR3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZLRI6ZZISP2B6TYM3SXGWAEDR3/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":"2026-05-26T10:35:07Z","links":{"resolver":"https://pith.science/pith/ZLRI6ZZISP2B6TYM3SXGWAEDR3","bundle":"https://pith.science/pith/ZLRI6ZZISP2B6TYM3SXGWAEDR3/bundle.json","state":"https://pith.science/pith/ZLRI6ZZISP2B6TYM3SXGWAEDR3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZLRI6ZZISP2B6TYM3SXGWAEDR3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ZLRI6ZZISP2B6TYM3SXGWAEDR3","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":"1b0755ae6e46537ac001f7d771eb3f9c42bebdec07558209120ee76e16ecee70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-04-19T12:29:43Z","title_canon_sha256":"180330aa0fbea4a1bbb834698899ddcf5877895a02b22bc730643adbdea0a4ad"},"schema_version":"1.0","source":{"id":"1304.5394","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.5394","created_at":"2026-05-18T03:26:51Z"},{"alias_kind":"arxiv_version","alias_value":"1304.5394v1","created_at":"2026-05-18T03:26:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.5394","created_at":"2026-05-18T03:26:51Z"},{"alias_kind":"pith_short_12","alias_value":"ZLRI6ZZISP2B","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"ZLRI6ZZISP2B6TYM","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"ZLRI6ZZI","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:b1d31879752760365d2f9c53e4a0e3fe403e32886fa7655404e7aea57510c160","target":"graph","created_at":"2026-05-18T03:26:51Z","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 local probe investigations of the magnetic interaction between BiFeO3 films and a ferromagnetic Co0.9Fe0.1 layer. Within the constraints of intralayer exchange coupling in the Co0.9Fe0.1, the multiferroic imprint in the ferromagnet results in a collinear arrangement of the local magnetization and the in-plane BiFeO3 ferroelectric polarization. The magnetic anisotropy is uniaxial, and an in-plane effective coupling field of order 10 mT is derived. Measurements as a function of multiferroic layer thickness show that the influence of the multiferroic layer on the magnetic layer becomes ","authors_text":"D. T. Pierce, E. Arenholz, J. D. Clarkson, Jian Liu, J. T. Heron, J. Unguris, M. Trassin, R. J. Paull, S. R. Bowden","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-04-19T12:29:43Z","title":"Interfacial Coupling in Multiferroic-Ferromagnet Heterostructures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.5394","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":"sha256:63742908a159b26f860986400d470b058a5f35739a5660f7f0944673c54d5404","target":"record","created_at":"2026-05-18T03:26:51Z","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":"1b0755ae6e46537ac001f7d771eb3f9c42bebdec07558209120ee76e16ecee70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-04-19T12:29:43Z","title_canon_sha256":"180330aa0fbea4a1bbb834698899ddcf5877895a02b22bc730643adbdea0a4ad"},"schema_version":"1.0","source":{"id":"1304.5394","kind":"arxiv","version":1}},"canonical_sha256":"cae28f672893f41f4f0cdcae6b00838ed6f92c37e98c72723e137dfb804204c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cae28f672893f41f4f0cdcae6b00838ed6f92c37e98c72723e137dfb804204c0","first_computed_at":"2026-05-18T03:26:51.972233Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:26:51.972233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DtaRG4nayb/JtR7y27Nbv7LTplXMBk3p2Huct66rpGu+ARd0YTDGmoKxEeemDDTCcx00k643s9ax8zc+YvH/CA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:26:51.972828Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.5394","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:63742908a159b26f860986400d470b058a5f35739a5660f7f0944673c54d5404","sha256:b1d31879752760365d2f9c53e4a0e3fe403e32886fa7655404e7aea57510c160"],"state_sha256":"705c314ffc1c91c31e2e726f50fa1d61f0f56bf9e7e3d4978e6120188cccd9db"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yynVU3deXRwB/94NQZwDhPIda0tPA5J4zZGTP9nlDNy+ivOyvesq7X1O030+6HW5NGwOG9/yhXyYmy/M1eyZAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:35:07.733707Z","bundle_sha256":"d9bbac7e18b99929265c9973cfb71afd39e7cb793c6143ce8d5203e10990ee88"}}