{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:SMMOY4ZAPE3QYJG3SJD2XUWNP3","short_pith_number":"pith:SMMOY4ZA","canonical_record":{"source":{"id":"1902.04239","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-12T05:00:15Z","cross_cats_sorted":[],"title_canon_sha256":"7c9ea9ccbd97f4845897fb9c4467b1a112734b0148efd4e5b49424ecc2eb77f2","abstract_canon_sha256":"f81e76ba9f77d38c36e4332987a79e90295ff43ea2ab0da659a1351527eb1ca8"},"schema_version":"1.0"},"canonical_sha256":"9318ec732079370c24db9247abd2cd7edd724c63e5e25b8cd77832b465b02a31","source":{"kind":"arxiv","id":"1902.04239","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.04239","created_at":"2026-05-17T23:43:03Z"},{"alias_kind":"arxiv_version","alias_value":"1902.04239v2","created_at":"2026-05-17T23:43:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.04239","created_at":"2026-05-17T23:43:03Z"},{"alias_kind":"pith_short_12","alias_value":"SMMOY4ZAPE3Q","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"SMMOY4ZAPE3QYJG3","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"SMMOY4ZA","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:SMMOY4ZAPE3QYJG3SJD2XUWNP3","target":"record","payload":{"canonical_record":{"source":{"id":"1902.04239","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-12T05:00:15Z","cross_cats_sorted":[],"title_canon_sha256":"7c9ea9ccbd97f4845897fb9c4467b1a112734b0148efd4e5b49424ecc2eb77f2","abstract_canon_sha256":"f81e76ba9f77d38c36e4332987a79e90295ff43ea2ab0da659a1351527eb1ca8"},"schema_version":"1.0"},"canonical_sha256":"9318ec732079370c24db9247abd2cd7edd724c63e5e25b8cd77832b465b02a31","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:03.428533Z","signature_b64":"Vid8c95n7c03pQ+YLCNF19wKtbpqfQrSpcRNnbtHGKbQv2BE9LefA4G5LoD01rwlSbm/WGgzKWAaLKbHIDSvAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9318ec732079370c24db9247abd2cd7edd724c63e5e25b8cd77832b465b02a31","last_reissued_at":"2026-05-17T23:43:03.427938Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:03.427938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.04239","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:43:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tbcS0n8ySiXr/rOddFTtrLw1ovNQMEGkotDekwYfCAE3aDNOVKZA81wipoRdGxvDTcZrbv7ugPpQ9qybJgMCDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:39:48.789736Z"},"content_sha256":"56ffe7b0c2e08c46d4d371979731b6b7e822a547a16faf955f7e8d08bf63ae4d","schema_version":"1.0","event_id":"sha256:56ffe7b0c2e08c46d4d371979731b6b7e822a547a16faf955f7e8d08bf63ae4d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:SMMOY4ZAPE3QYJG3SJD2XUWNP3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin transparency for an interface of an ultrathin magnet within the spin dephasing length","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Kyoung-Whan Kim","submitted_at":"2019-02-12T05:00:15Z","abstract_excerpt":"We examine a modified drift-diffusion formalism to describe spin transport near an ultrathin magnet whose thickness is similar to or less than the spin dephasing length. Most of the previous theories on spin torque assume the transverse component of a injected spin current dephases perfectly thus are fully absorbed into the ferromagnet. However, in the state-of-art multilayer systems under consideration of recent studies, the thicknesses of ferromagnets are on the order of or less than a nanometer, thus one cannot safely assume the spin dephasing to be perfect. To describe the effects of a fin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.04239","kind":"arxiv","version":2},"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":"2026-05-17T23:43:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jxuTFPIooPSkThIOYK25d0SP4bUJqlLbpm1bE/bF56ICPtX5bTwUhjFKOAhkzM4ghI2tk15hczXFj8weOsuaBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:39:48.790518Z"},"content_sha256":"a52c007d3cf9c94ddba67e3c7e3c76d8d39276880d75efcc9dd105174e702dd0","schema_version":"1.0","event_id":"sha256:a52c007d3cf9c94ddba67e3c7e3c76d8d39276880d75efcc9dd105174e702dd0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SMMOY4ZAPE3QYJG3SJD2XUWNP3/bundle.json","state_url":"https://pith.science/pith/SMMOY4ZAPE3QYJG3SJD2XUWNP3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SMMOY4ZAPE3QYJG3SJD2XUWNP3/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":"2026-06-01T00:39:48Z","links":{"resolver":"https://pith.science/pith/SMMOY4ZAPE3QYJG3SJD2XUWNP3","bundle":"https://pith.science/pith/SMMOY4ZAPE3QYJG3SJD2XUWNP3/bundle.json","state":"https://pith.science/pith/SMMOY4ZAPE3QYJG3SJD2XUWNP3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SMMOY4ZAPE3QYJG3SJD2XUWNP3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:SMMOY4ZAPE3QYJG3SJD2XUWNP3","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":"f81e76ba9f77d38c36e4332987a79e90295ff43ea2ab0da659a1351527eb1ca8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-12T05:00:15Z","title_canon_sha256":"7c9ea9ccbd97f4845897fb9c4467b1a112734b0148efd4e5b49424ecc2eb77f2"},"schema_version":"1.0","source":{"id":"1902.04239","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.04239","created_at":"2026-05-17T23:43:03Z"},{"alias_kind":"arxiv_version","alias_value":"1902.04239v2","created_at":"2026-05-17T23:43:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.04239","created_at":"2026-05-17T23:43:03Z"},{"alias_kind":"pith_short_12","alias_value":"SMMOY4ZAPE3Q","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"SMMOY4ZAPE3QYJG3","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"SMMOY4ZA","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:a52c007d3cf9c94ddba67e3c7e3c76d8d39276880d75efcc9dd105174e702dd0","target":"graph","created_at":"2026-05-17T23:43:03Z","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 examine a modified drift-diffusion formalism to describe spin transport near an ultrathin magnet whose thickness is similar to or less than the spin dephasing length. Most of the previous theories on spin torque assume the transverse component of a injected spin current dephases perfectly thus are fully absorbed into the ferromagnet. However, in the state-of-art multilayer systems under consideration of recent studies, the thicknesses of ferromagnets are on the order of or less than a nanometer, thus one cannot safely assume the spin dephasing to be perfect. To describe the effects of a fin","authors_text":"Kyoung-Whan Kim","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-12T05:00:15Z","title":"Spin transparency for an interface of an ultrathin magnet within the spin dephasing length"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.04239","kind":"arxiv","version":2},"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":"sha256:56ffe7b0c2e08c46d4d371979731b6b7e822a547a16faf955f7e8d08bf63ae4d","target":"record","created_at":"2026-05-17T23:43:03Z","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":"f81e76ba9f77d38c36e4332987a79e90295ff43ea2ab0da659a1351527eb1ca8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-12T05:00:15Z","title_canon_sha256":"7c9ea9ccbd97f4845897fb9c4467b1a112734b0148efd4e5b49424ecc2eb77f2"},"schema_version":"1.0","source":{"id":"1902.04239","kind":"arxiv","version":2}},"canonical_sha256":"9318ec732079370c24db9247abd2cd7edd724c63e5e25b8cd77832b465b02a31","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9318ec732079370c24db9247abd2cd7edd724c63e5e25b8cd77832b465b02a31","first_computed_at":"2026-05-17T23:43:03.427938Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:03.427938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Vid8c95n7c03pQ+YLCNF19wKtbpqfQrSpcRNnbtHGKbQv2BE9LefA4G5LoD01rwlSbm/WGgzKWAaLKbHIDSvAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:03.428533Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.04239","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56ffe7b0c2e08c46d4d371979731b6b7e822a547a16faf955f7e8d08bf63ae4d","sha256:a52c007d3cf9c94ddba67e3c7e3c76d8d39276880d75efcc9dd105174e702dd0"],"state_sha256":"b98f114432c0c24fb9c951287e12461b8c1cde1f2b2cf3a5dc6e2ec597c5cac8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZqYERkuDZdfs5HGIfl0ZWxEmMRjFNnOgdsi3fIuswfHUBWh7U4xVg+g74ddGJ81s969q9q5cVh8wpy6GKlJgDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T00:39:48.794597Z","bundle_sha256":"3327394f4c29916c0bc1d22851d282b30801f2725bfdbd798c98a9e7d87b5741"}}