{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:F7HZPAGJDB63GCR6XNHHFT7J6K","short_pith_number":"pith:F7HZPAGJ","canonical_record":{"source":{"id":"cond-mat/0504705","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2005-04-27T17:19:32Z","cross_cats_sorted":[],"title_canon_sha256":"971f1384c8442ffa7d681bcbb7f18d005c09d1d5f924dc0d5a89162690bc31ad","abstract_canon_sha256":"7479fad7ba78a93f47db179d37a4bacd7ca24d4338d8164c89f4454392d749f5"},"schema_version":"1.0"},"canonical_sha256":"2fcf9780c9187db30a3ebb4e72cfe9f2a9d6f0eec8fc593ddb8e242d2886c1f9","source":{"kind":"arxiv","id":"cond-mat/0504705","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0504705","created_at":"2026-05-18T01:39:53Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0504705v2","created_at":"2026-05-18T01:39:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0504705","created_at":"2026-05-18T01:39:53Z"},{"alias_kind":"pith_short_12","alias_value":"F7HZPAGJDB63","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"F7HZPAGJDB63GCR6","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"F7HZPAGJ","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:F7HZPAGJDB63GCR6XNHHFT7J6K","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0504705","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2005-04-27T17:19:32Z","cross_cats_sorted":[],"title_canon_sha256":"971f1384c8442ffa7d681bcbb7f18d005c09d1d5f924dc0d5a89162690bc31ad","abstract_canon_sha256":"7479fad7ba78a93f47db179d37a4bacd7ca24d4338d8164c89f4454392d749f5"},"schema_version":"1.0"},"canonical_sha256":"2fcf9780c9187db30a3ebb4e72cfe9f2a9d6f0eec8fc593ddb8e242d2886c1f9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:53.216157Z","signature_b64":"ktgVhRtlX46WnBdeQ+omVr2k2qZNXXl8ttlEzfkGMiXHbrzgLimy+6UkIg8WCgEZN5Fx8R5ixT9h+vtwuQ2BCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2fcf9780c9187db30a3ebb4e72cfe9f2a9d6f0eec8fc593ddb8e242d2886c1f9","last_reissued_at":"2026-05-18T01:39:53.215642Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:53.215642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0504705","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":"2026-05-18T01:39:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kQNa2rc8ngLGaGhZ72vRNk81hEmwuajIFeQ3g1oXHnQv/maLUt9xcKYnIQ7P/nqbWW03RTYsJYkBGNrJW05rCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T06:24:43.042391Z"},"content_sha256":"fce3711285677e6a103c49ec683286ac7deedd4e6cc399ce3131f64416f650ff","schema_version":"1.0","event_id":"sha256:fce3711285677e6a103c49ec683286ac7deedd4e6cc399ce3131f64416f650ff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:F7HZPAGJDB63GCR6XNHHFT7J6K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Perpendicular spin valves with ultra-thin ferromagnetic layers","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Alexey A. Kovalev, Arne Brataas, Gerrit E.W. Bauer","submitted_at":"2005-04-27T17:19:32Z","abstract_excerpt":"We address two finite size effects in perpendicular transport through magnetic multilayers. When the magnetic layer thickness in spin valves becomes of the order or smaller than the spin-flip diffusion length, structural asymmetries affect the transport properties. A magnetic layer with thickness approaching the magnetic coherence length becomes transparent for spin currents polarized perpendicular to the magnetization. We use the generalized magnetoelectronic circuit theory to investigate both effects on the angular magnetoresistance (aMR) and spin transfer torque. We analyze recent aMR exper"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0504705","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":"2026-05-18T01:39:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"byJUZCF8H79Vdzr9RX4l7PWbq+TUU5/q0i0hDaFPgqGebSo38ipblPjufH66Wjo38r9ykTSWNhHE3dQtko/xAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T06:24:43.042937Z"},"content_sha256":"e57468124c10e4f0822c95b78d593052e46eddb1613277f9cea3af483bb227e3","schema_version":"1.0","event_id":"sha256:e57468124c10e4f0822c95b78d593052e46eddb1613277f9cea3af483bb227e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F7HZPAGJDB63GCR6XNHHFT7J6K/bundle.json","state_url":"https://pith.science/pith/F7HZPAGJDB63GCR6XNHHFT7J6K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F7HZPAGJDB63GCR6XNHHFT7J6K/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":"2026-06-02T06:24:43Z","links":{"resolver":"https://pith.science/pith/F7HZPAGJDB63GCR6XNHHFT7J6K","bundle":"https://pith.science/pith/F7HZPAGJDB63GCR6XNHHFT7J6K/bundle.json","state":"https://pith.science/pith/F7HZPAGJDB63GCR6XNHHFT7J6K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F7HZPAGJDB63GCR6XNHHFT7J6K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:F7HZPAGJDB63GCR6XNHHFT7J6K","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":"7479fad7ba78a93f47db179d37a4bacd7ca24d4338d8164c89f4454392d749f5","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2005-04-27T17:19:32Z","title_canon_sha256":"971f1384c8442ffa7d681bcbb7f18d005c09d1d5f924dc0d5a89162690bc31ad"},"schema_version":"1.0","source":{"id":"cond-mat/0504705","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0504705","created_at":"2026-05-18T01:39:53Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0504705v2","created_at":"2026-05-18T01:39:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0504705","created_at":"2026-05-18T01:39:53Z"},{"alias_kind":"pith_short_12","alias_value":"F7HZPAGJDB63","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"F7HZPAGJDB63GCR6","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"F7HZPAGJ","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:e57468124c10e4f0822c95b78d593052e46eddb1613277f9cea3af483bb227e3","target":"graph","created_at":"2026-05-18T01:39:53Z","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 address two finite size effects in perpendicular transport through magnetic multilayers. When the magnetic layer thickness in spin valves becomes of the order or smaller than the spin-flip diffusion length, structural asymmetries affect the transport properties. A magnetic layer with thickness approaching the magnetic coherence length becomes transparent for spin currents polarized perpendicular to the magnetization. We use the generalized magnetoelectronic circuit theory to investigate both effects on the angular magnetoresistance (aMR) and spin transfer torque. We analyze recent aMR exper","authors_text":"Alexey A. Kovalev, Arne Brataas, Gerrit E.W. Bauer","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2005-04-27T17:19:32Z","title":"Perpendicular spin valves with ultra-thin ferromagnetic layers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0504705","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:fce3711285677e6a103c49ec683286ac7deedd4e6cc399ce3131f64416f650ff","target":"record","created_at":"2026-05-18T01:39:53Z","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":"7479fad7ba78a93f47db179d37a4bacd7ca24d4338d8164c89f4454392d749f5","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2005-04-27T17:19:32Z","title_canon_sha256":"971f1384c8442ffa7d681bcbb7f18d005c09d1d5f924dc0d5a89162690bc31ad"},"schema_version":"1.0","source":{"id":"cond-mat/0504705","kind":"arxiv","version":2}},"canonical_sha256":"2fcf9780c9187db30a3ebb4e72cfe9f2a9d6f0eec8fc593ddb8e242d2886c1f9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2fcf9780c9187db30a3ebb4e72cfe9f2a9d6f0eec8fc593ddb8e242d2886c1f9","first_computed_at":"2026-05-18T01:39:53.215642Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:53.215642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ktgVhRtlX46WnBdeQ+omVr2k2qZNXXl8ttlEzfkGMiXHbrzgLimy+6UkIg8WCgEZN5Fx8R5ixT9h+vtwuQ2BCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:53.216157Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0504705","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fce3711285677e6a103c49ec683286ac7deedd4e6cc399ce3131f64416f650ff","sha256:e57468124c10e4f0822c95b78d593052e46eddb1613277f9cea3af483bb227e3"],"state_sha256":"5dd26d824cc575e0475ddc64b2f156ff9ac26b77f1fa8a8014836b75d8399111"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vb2FVnJLAHr6mwaTrhOlDtsgMleLy9Y81xqOxs0JlKEc8k/657wdosw1eGprmmRSibHINBbGinG4QULAplS+BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T06:24:43.045995Z","bundle_sha256":"8ed50f7be16c0ccaa0acdf79800bd2c3bce4e9cb6a07cdca3e6d053f030cc21e"}}