{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:BDJGOU7XHH7NLIGMDLVH5IHOUM","short_pith_number":"pith:BDJGOU7X","canonical_record":{"source":{"id":"1701.02027","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-01-08T22:29:51Z","cross_cats_sorted":[],"title_canon_sha256":"5726f4fd2a9d1d85c2382cc0ea79281ab3927dcefd59805212cc989a16b4fc8f","abstract_canon_sha256":"cbdebdd0a3f4d6644cfd10c94c7577d961224a26305b5ce68de3a5840c7ccb06"},"schema_version":"1.0"},"canonical_sha256":"08d26753f739fed5a0cc1aea7ea0eea3183a5782d01dd1263ac539a8de29e00e","source":{"kind":"arxiv","id":"1701.02027","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.02027","created_at":"2026-05-18T00:53:11Z"},{"alias_kind":"arxiv_version","alias_value":"1701.02027v1","created_at":"2026-05-18T00:53:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.02027","created_at":"2026-05-18T00:53:11Z"},{"alias_kind":"pith_short_12","alias_value":"BDJGOU7XHH7N","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BDJGOU7XHH7NLIGM","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BDJGOU7X","created_at":"2026-05-18T12:31:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:BDJGOU7XHH7NLIGMDLVH5IHOUM","target":"record","payload":{"canonical_record":{"source":{"id":"1701.02027","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-01-08T22:29:51Z","cross_cats_sorted":[],"title_canon_sha256":"5726f4fd2a9d1d85c2382cc0ea79281ab3927dcefd59805212cc989a16b4fc8f","abstract_canon_sha256":"cbdebdd0a3f4d6644cfd10c94c7577d961224a26305b5ce68de3a5840c7ccb06"},"schema_version":"1.0"},"canonical_sha256":"08d26753f739fed5a0cc1aea7ea0eea3183a5782d01dd1263ac539a8de29e00e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:11.815148Z","signature_b64":"FavUvRPPc2VNji+LiL163u7X0HrIhkSoo//RuJxB41nOgK0sVLEALa9O/bkohFY8XySEuwgBeQEG/6jbIIhrBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"08d26753f739fed5a0cc1aea7ea0eea3183a5782d01dd1263ac539a8de29e00e","last_reissued_at":"2026-05-18T00:53:11.814470Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:11.814470Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.02027","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":"2026-05-18T00:53:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f9eYb8UYQ/vjwqFBS9DCyd5ISMwRdHA4sGfjGH+GZ6v6OhU8Q1+hiY+SlD+TBFiXidLzNiFy4OAp4b2MN0kMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T05:50:59.211060Z"},"content_sha256":"dea95c307993011eefebdf851983fffef5308148e15703b5788b67180c96e17a","schema_version":"1.0","event_id":"sha256:dea95c307993011eefebdf851983fffef5308148e15703b5788b67180c96e17a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:BDJGOU7XHH7NLIGMDLVH5IHOUM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Separate magnetization switching of hexagonal Co/BN/Co junctions grown epitaxially on c-sapphire","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alexander A. Tonkikh, Peter Werner","submitted_at":"2017-01-08T22:29:51Z","abstract_excerpt":"Magnetic tunnel junctions (MTJ) have been grown by using molecular beam epitaxy on c-plane Al2O3 substrates. The MTJ stacks consist of two ferromagnetic hcp-Co layers separated by a thin insulating h-BN barrier. The samples have been grown in a single run revealing single crystalline epitaxial structures with sharp interfaces as observed by applying transmission electron microscopy. The in-plane magnetization experiments have revealed separate magnetization switching of a thin top Co (soft) layer and a thick bottom Co (hard) layer. At zero magnetic field the two Co layers are found in an antip"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.02027","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":"2026-05-18T00:53:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KKL2IQGdyvBCLezQY53vXUe1SGfmY0W5TBs/gb2Ijgu8Z3+PMiMlCBtYCh8T8JErHI9j9ujWqm6rsNp8b2mWBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T05:50:59.211834Z"},"content_sha256":"c4318afbacbcb2193d40078db9b4f228f4d310cc268fd9b398b63aedcd69791a","schema_version":"1.0","event_id":"sha256:c4318afbacbcb2193d40078db9b4f228f4d310cc268fd9b398b63aedcd69791a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BDJGOU7XHH7NLIGMDLVH5IHOUM/bundle.json","state_url":"https://pith.science/pith/BDJGOU7XHH7NLIGMDLVH5IHOUM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BDJGOU7XHH7NLIGMDLVH5IHOUM/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":"2026-06-10T05:50:59Z","links":{"resolver":"https://pith.science/pith/BDJGOU7XHH7NLIGMDLVH5IHOUM","bundle":"https://pith.science/pith/BDJGOU7XHH7NLIGMDLVH5IHOUM/bundle.json","state":"https://pith.science/pith/BDJGOU7XHH7NLIGMDLVH5IHOUM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BDJGOU7XHH7NLIGMDLVH5IHOUM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:BDJGOU7XHH7NLIGMDLVH5IHOUM","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":"cbdebdd0a3f4d6644cfd10c94c7577d961224a26305b5ce68de3a5840c7ccb06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-01-08T22:29:51Z","title_canon_sha256":"5726f4fd2a9d1d85c2382cc0ea79281ab3927dcefd59805212cc989a16b4fc8f"},"schema_version":"1.0","source":{"id":"1701.02027","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.02027","created_at":"2026-05-18T00:53:11Z"},{"alias_kind":"arxiv_version","alias_value":"1701.02027v1","created_at":"2026-05-18T00:53:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.02027","created_at":"2026-05-18T00:53:11Z"},{"alias_kind":"pith_short_12","alias_value":"BDJGOU7XHH7N","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BDJGOU7XHH7NLIGM","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BDJGOU7X","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:c4318afbacbcb2193d40078db9b4f228f4d310cc268fd9b398b63aedcd69791a","target":"graph","created_at":"2026-05-18T00:53:11Z","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":"Magnetic tunnel junctions (MTJ) have been grown by using molecular beam epitaxy on c-plane Al2O3 substrates. The MTJ stacks consist of two ferromagnetic hcp-Co layers separated by a thin insulating h-BN barrier. The samples have been grown in a single run revealing single crystalline epitaxial structures with sharp interfaces as observed by applying transmission electron microscopy. The in-plane magnetization experiments have revealed separate magnetization switching of a thin top Co (soft) layer and a thick bottom Co (hard) layer. At zero magnetic field the two Co layers are found in an antip","authors_text":"Alexander A. Tonkikh, Peter Werner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-01-08T22:29:51Z","title":"Separate magnetization switching of hexagonal Co/BN/Co junctions grown epitaxially on c-sapphire"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.02027","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:dea95c307993011eefebdf851983fffef5308148e15703b5788b67180c96e17a","target":"record","created_at":"2026-05-18T00:53:11Z","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":"cbdebdd0a3f4d6644cfd10c94c7577d961224a26305b5ce68de3a5840c7ccb06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-01-08T22:29:51Z","title_canon_sha256":"5726f4fd2a9d1d85c2382cc0ea79281ab3927dcefd59805212cc989a16b4fc8f"},"schema_version":"1.0","source":{"id":"1701.02027","kind":"arxiv","version":1}},"canonical_sha256":"08d26753f739fed5a0cc1aea7ea0eea3183a5782d01dd1263ac539a8de29e00e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"08d26753f739fed5a0cc1aea7ea0eea3183a5782d01dd1263ac539a8de29e00e","first_computed_at":"2026-05-18T00:53:11.814470Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:11.814470Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FavUvRPPc2VNji+LiL163u7X0HrIhkSoo//RuJxB41nOgK0sVLEALa9O/bkohFY8XySEuwgBeQEG/6jbIIhrBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:11.815148Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.02027","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dea95c307993011eefebdf851983fffef5308148e15703b5788b67180c96e17a","sha256:c4318afbacbcb2193d40078db9b4f228f4d310cc268fd9b398b63aedcd69791a"],"state_sha256":"98b2ea02e807428e74604fef4e740c7591cb7492e9c02093a475e588a496481b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+N4jxyrYIix63UewwhzAh53mFwxoxqw95s93/gtrYXCFmQE49fQRfiWeWIfh8B1KoTDwqlgdUUrYnRnSt4qjAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T05:50:59.215586Z","bundle_sha256":"9f2e81764117631e208caa0e672a82f2be5bc2d672f6379a9e89975b4aec853e"}}