{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:MC4FQ2J3IWZAQM2GLM5QLYX77H","short_pith_number":"pith:MC4FQ2J3","canonical_record":{"source":{"id":"1711.02253","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-11-07T01:51:09Z","cross_cats_sorted":[],"title_canon_sha256":"1594ccf6afc721f8b28e0d7562ee09fb5507fa27d83a06aae6146e2489333be0","abstract_canon_sha256":"2f358b000ff616a9d15a4c439c31f63bb16c4aad7cc6ac508ed816f56063dafe"},"schema_version":"1.0"},"canonical_sha256":"60b858693b45b20833465b3b05e2fff9ee149aa534504df1a1618e4e2ecef297","source":{"kind":"arxiv","id":"1711.02253","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.02253","created_at":"2026-05-18T00:11:40Z"},{"alias_kind":"arxiv_version","alias_value":"1711.02253v1","created_at":"2026-05-18T00:11:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.02253","created_at":"2026-05-18T00:11:40Z"},{"alias_kind":"pith_short_12","alias_value":"MC4FQ2J3IWZA","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MC4FQ2J3IWZAQM2G","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MC4FQ2J3","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:MC4FQ2J3IWZAQM2GLM5QLYX77H","target":"record","payload":{"canonical_record":{"source":{"id":"1711.02253","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-11-07T01:51:09Z","cross_cats_sorted":[],"title_canon_sha256":"1594ccf6afc721f8b28e0d7562ee09fb5507fa27d83a06aae6146e2489333be0","abstract_canon_sha256":"2f358b000ff616a9d15a4c439c31f63bb16c4aad7cc6ac508ed816f56063dafe"},"schema_version":"1.0"},"canonical_sha256":"60b858693b45b20833465b3b05e2fff9ee149aa534504df1a1618e4e2ecef297","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:40.195189Z","signature_b64":"q1EZ+ae4kqToECnb87rL5eJDCN06MtBBdfBUlrM3JNI3Q+0LYZrNIe0OqBMzShEfpIFLGMrZ8yyOM8oQ4cI7BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"60b858693b45b20833465b3b05e2fff9ee149aa534504df1a1618e4e2ecef297","last_reissued_at":"2026-05-18T00:11:40.194485Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:40.194485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1711.02253","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":"2026-05-18T00:11:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TEcAaczvTBji/NE8ZQrtBVvZUHxWjXSNXA0kjfPoqvNysHjERYZyphO43w6JW+4bGEvPrYUrRTDpICY5e0F0Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:39:13.535596Z"},"content_sha256":"6a9338187c0d35a0a649becb4ee5a6deadfff36ebd96536c9134b3d4d8872c9a","schema_version":"1.0","event_id":"sha256:6a9338187c0d35a0a649becb4ee5a6deadfff36ebd96536c9134b3d4d8872c9a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:MC4FQ2J3IWZAQM2GLM5QLYX77H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Microscopic origin of electric-field-induced modulation of Curie temperature in cobalt","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Daichi Chiba, Fuyuki Ando, Kihiro T. Yamada, Mio Ishibashi, Takahiro Moriyama, Teruo Ono, Tomohiro Koyama, Yoichi Shiota","submitted_at":"2017-11-07T01:51:09Z","abstract_excerpt":"The Curie temperature is one of the most fundamental physical properties of ferromagnetic materials and can be described by Weiss molecular field theory with the exchange interaction of neighboring atoms. Recently, the electric-field-induced modulation of the Curie temperature has been demonstrated in transition metals. This can be interpreted as indirect evidence for the electrical modulation of exchange coupling. However, the scenario has not yet been experimentally verified. Here, we demonstrate the electrical control of exchange coupling in cobalt film from direct magnetization measurement"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.02253","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":"2026-05-18T00:11:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+oRFcMrTL7+3kl/tXGUZuwZjlCLfEuGdlDbu0n5hGKYCROqc1gQISvOoson+WTB/FKXy8JuaR/AGceNhx8TiAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:39:13.535944Z"},"content_sha256":"f11296140dcd4e04325ba569000b050b0bf7dabeb6be02cbf7d45375104906a2","schema_version":"1.0","event_id":"sha256:f11296140dcd4e04325ba569000b050b0bf7dabeb6be02cbf7d45375104906a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MC4FQ2J3IWZAQM2GLM5QLYX77H/bundle.json","state_url":"https://pith.science/pith/MC4FQ2J3IWZAQM2GLM5QLYX77H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MC4FQ2J3IWZAQM2GLM5QLYX77H/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":"2026-05-28T04:39:13Z","links":{"resolver":"https://pith.science/pith/MC4FQ2J3IWZAQM2GLM5QLYX77H","bundle":"https://pith.science/pith/MC4FQ2J3IWZAQM2GLM5QLYX77H/bundle.json","state":"https://pith.science/pith/MC4FQ2J3IWZAQM2GLM5QLYX77H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MC4FQ2J3IWZAQM2GLM5QLYX77H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:MC4FQ2J3IWZAQM2GLM5QLYX77H","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":"2f358b000ff616a9d15a4c439c31f63bb16c4aad7cc6ac508ed816f56063dafe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-11-07T01:51:09Z","title_canon_sha256":"1594ccf6afc721f8b28e0d7562ee09fb5507fa27d83a06aae6146e2489333be0"},"schema_version":"1.0","source":{"id":"1711.02253","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.02253","created_at":"2026-05-18T00:11:40Z"},{"alias_kind":"arxiv_version","alias_value":"1711.02253v1","created_at":"2026-05-18T00:11:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.02253","created_at":"2026-05-18T00:11:40Z"},{"alias_kind":"pith_short_12","alias_value":"MC4FQ2J3IWZA","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MC4FQ2J3IWZAQM2G","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MC4FQ2J3","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:f11296140dcd4e04325ba569000b050b0bf7dabeb6be02cbf7d45375104906a2","target":"graph","created_at":"2026-05-18T00:11:40Z","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":"The Curie temperature is one of the most fundamental physical properties of ferromagnetic materials and can be described by Weiss molecular field theory with the exchange interaction of neighboring atoms. Recently, the electric-field-induced modulation of the Curie temperature has been demonstrated in transition metals. This can be interpreted as indirect evidence for the electrical modulation of exchange coupling. However, the scenario has not yet been experimentally verified. Here, we demonstrate the electrical control of exchange coupling in cobalt film from direct magnetization measurement","authors_text":"Daichi Chiba, Fuyuki Ando, Kihiro T. Yamada, Mio Ishibashi, Takahiro Moriyama, Teruo Ono, Tomohiro Koyama, Yoichi Shiota","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-11-07T01:51:09Z","title":"Microscopic origin of electric-field-induced modulation of Curie temperature in cobalt"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.02253","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":"sha256:6a9338187c0d35a0a649becb4ee5a6deadfff36ebd96536c9134b3d4d8872c9a","target":"record","created_at":"2026-05-18T00:11:40Z","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":"2f358b000ff616a9d15a4c439c31f63bb16c4aad7cc6ac508ed816f56063dafe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-11-07T01:51:09Z","title_canon_sha256":"1594ccf6afc721f8b28e0d7562ee09fb5507fa27d83a06aae6146e2489333be0"},"schema_version":"1.0","source":{"id":"1711.02253","kind":"arxiv","version":1}},"canonical_sha256":"60b858693b45b20833465b3b05e2fff9ee149aa534504df1a1618e4e2ecef297","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"60b858693b45b20833465b3b05e2fff9ee149aa534504df1a1618e4e2ecef297","first_computed_at":"2026-05-18T00:11:40.194485Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:40.194485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q1EZ+ae4kqToECnb87rL5eJDCN06MtBBdfBUlrM3JNI3Q+0LYZrNIe0OqBMzShEfpIFLGMrZ8yyOM8oQ4cI7BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:40.195189Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.02253","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a9338187c0d35a0a649becb4ee5a6deadfff36ebd96536c9134b3d4d8872c9a","sha256:f11296140dcd4e04325ba569000b050b0bf7dabeb6be02cbf7d45375104906a2"],"state_sha256":"8dd763b96d695bb850219c3c8c4b6128e0c2f31866680dd2299108cb28095542"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jEu+VX2h42BzpKFII2FJ5ShKjtyn4q/mcvcl/GVBBNTX2afmynG4Y77YTKaXMelZHebJyX+JCLXslpa2QwlKCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T04:39:13.537886Z","bundle_sha256":"28989fb9d4397972f87a3b16ce6163a8f731c3247820a76c2e19471294fac73e"}}