{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:QF5CYPGVJFUADDGG45W25O3Q7Y","short_pith_number":"pith:QF5CYPGV","canonical_record":{"source":{"id":"1206.4470","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-06-20T12:13:13Z","cross_cats_sorted":[],"title_canon_sha256":"15336584ae1377a30c84c9919aa7e96838a9d093d2b8469dd3bed82da8f57ba8","abstract_canon_sha256":"ea4cb8dc6da6d6668c3d4d80429663a8b42f5b55acd26b220c0a80c5ae2b014f"},"schema_version":"1.0"},"canonical_sha256":"817a2c3cd54968018cc6e76daebb70fe345fb6d35dc84b6926506ce224a0c60c","source":{"kind":"arxiv","id":"1206.4470","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.4470","created_at":"2026-05-18T03:17:34Z"},{"alias_kind":"arxiv_version","alias_value":"1206.4470v1","created_at":"2026-05-18T03:17:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.4470","created_at":"2026-05-18T03:17:34Z"},{"alias_kind":"pith_short_12","alias_value":"QF5CYPGVJFUA","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"QF5CYPGVJFUADDGG","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"QF5CYPGV","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:QF5CYPGVJFUADDGG45W25O3Q7Y","target":"record","payload":{"canonical_record":{"source":{"id":"1206.4470","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-06-20T12:13:13Z","cross_cats_sorted":[],"title_canon_sha256":"15336584ae1377a30c84c9919aa7e96838a9d093d2b8469dd3bed82da8f57ba8","abstract_canon_sha256":"ea4cb8dc6da6d6668c3d4d80429663a8b42f5b55acd26b220c0a80c5ae2b014f"},"schema_version":"1.0"},"canonical_sha256":"817a2c3cd54968018cc6e76daebb70fe345fb6d35dc84b6926506ce224a0c60c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:17:34.245012Z","signature_b64":"zrwACH0ndB8qsWoD9NdMlQbgVKk46RZbZJ0fNL3Nh9JI/VkJWOq9DVLcaGFBXPKIhr+R71IEBw1XG5R1TJxTDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"817a2c3cd54968018cc6e76daebb70fe345fb6d35dc84b6926506ce224a0c60c","last_reissued_at":"2026-05-18T03:17:34.244328Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:17:34.244328Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1206.4470","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":"2026-05-18T03:17:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hpZNsuQVeol9Fy4BtZLQUpBQoawmjbJXVhCTP4IXl8InRAgZgmkfEaWF+Tj0cAAYEBpMRw532TFdeUZjw9WpBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:29:13.854271Z"},"content_sha256":"29b0855d4ec315ee2265ca7a080cb051030bd01b165efba560f7efbca49120bc","schema_version":"1.0","event_id":"sha256:29b0855d4ec315ee2265ca7a080cb051030bd01b165efba560f7efbca49120bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:QF5CYPGVJFUADDGG45W25O3Q7Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A unified drift-diffusion theory for transverse spin currents in spin valves, domain walls and other textured magnets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Cyril Petitjean, David Luc, Xavier Waintal","submitted_at":"2012-06-20T12:13:13Z","abstract_excerpt":"Spins transverse to the magnetization of a ferromagnet only survives over a short distance. We develop a drift-diffusion approach that captures the main features of transverse spin effects in systems with arbitrary spin textures (vortices, domain walls) and generalizes the Valet-Fert theory. In addition to the standard characteristic lengths (mean free path for majority and manority electrons, spin diffusion length), the theory introduces two lengths scales, the transverse spin coherence length and the (Larmor) spin precession length. We show how those lengths can be extracted from ab-initio c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.4470","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":"2026-05-18T03:17:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N43nJADWPEZaT/TcIBpdJE9dV2byXH5Lk0rVag/4tl1HCTSsySIls1Mz4WuhclHrH27E79x7pzszMhc+cKuzCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:29:13.855027Z"},"content_sha256":"cca5c0815ccb599c504a7d3daafc50360727462d8657f1a28bb7f88bcbf655bc","schema_version":"1.0","event_id":"sha256:cca5c0815ccb599c504a7d3daafc50360727462d8657f1a28bb7f88bcbf655bc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QF5CYPGVJFUADDGG45W25O3Q7Y/bundle.json","state_url":"https://pith.science/pith/QF5CYPGVJFUADDGG45W25O3Q7Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QF5CYPGVJFUADDGG45W25O3Q7Y/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":"2026-06-06T15:29:13Z","links":{"resolver":"https://pith.science/pith/QF5CYPGVJFUADDGG45W25O3Q7Y","bundle":"https://pith.science/pith/QF5CYPGVJFUADDGG45W25O3Q7Y/bundle.json","state":"https://pith.science/pith/QF5CYPGVJFUADDGG45W25O3Q7Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QF5CYPGVJFUADDGG45W25O3Q7Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:QF5CYPGVJFUADDGG45W25O3Q7Y","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":"ea4cb8dc6da6d6668c3d4d80429663a8b42f5b55acd26b220c0a80c5ae2b014f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-06-20T12:13:13Z","title_canon_sha256":"15336584ae1377a30c84c9919aa7e96838a9d093d2b8469dd3bed82da8f57ba8"},"schema_version":"1.0","source":{"id":"1206.4470","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.4470","created_at":"2026-05-18T03:17:34Z"},{"alias_kind":"arxiv_version","alias_value":"1206.4470v1","created_at":"2026-05-18T03:17:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.4470","created_at":"2026-05-18T03:17:34Z"},{"alias_kind":"pith_short_12","alias_value":"QF5CYPGVJFUA","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"QF5CYPGVJFUADDGG","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"QF5CYPGV","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:cca5c0815ccb599c504a7d3daafc50360727462d8657f1a28bb7f88bcbf655bc","target":"graph","created_at":"2026-05-18T03:17:34Z","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":"Spins transverse to the magnetization of a ferromagnet only survives over a short distance. We develop a drift-diffusion approach that captures the main features of transverse spin effects in systems with arbitrary spin textures (vortices, domain walls) and generalizes the Valet-Fert theory. In addition to the standard characteristic lengths (mean free path for majority and manority electrons, spin diffusion length), the theory introduces two lengths scales, the transverse spin coherence length and the (Larmor) spin precession length. We show how those lengths can be extracted from ab-initio c","authors_text":"Cyril Petitjean, David Luc, Xavier Waintal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-06-20T12:13:13Z","title":"A unified drift-diffusion theory for transverse spin currents in spin valves, domain walls and other textured magnets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.4470","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":"sha256:29b0855d4ec315ee2265ca7a080cb051030bd01b165efba560f7efbca49120bc","target":"record","created_at":"2026-05-18T03:17:34Z","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":"ea4cb8dc6da6d6668c3d4d80429663a8b42f5b55acd26b220c0a80c5ae2b014f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-06-20T12:13:13Z","title_canon_sha256":"15336584ae1377a30c84c9919aa7e96838a9d093d2b8469dd3bed82da8f57ba8"},"schema_version":"1.0","source":{"id":"1206.4470","kind":"arxiv","version":1}},"canonical_sha256":"817a2c3cd54968018cc6e76daebb70fe345fb6d35dc84b6926506ce224a0c60c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"817a2c3cd54968018cc6e76daebb70fe345fb6d35dc84b6926506ce224a0c60c","first_computed_at":"2026-05-18T03:17:34.244328Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:17:34.244328Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zrwACH0ndB8qsWoD9NdMlQbgVKk46RZbZJ0fNL3Nh9JI/VkJWOq9DVLcaGFBXPKIhr+R71IEBw1XG5R1TJxTDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:17:34.245012Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.4470","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:29b0855d4ec315ee2265ca7a080cb051030bd01b165efba560f7efbca49120bc","sha256:cca5c0815ccb599c504a7d3daafc50360727462d8657f1a28bb7f88bcbf655bc"],"state_sha256":"0bf6726b0f18087fcfcdc34f41e665580ef078d076df407bcafae0bbb2ca1481"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1ZuxOm77YG1VnoTTrmlEAO+hGlrm/wYjBpwfp8QA9WortLI+LnwV8yGls8qzN0aJ6CpoMc+afqyWA8RqnE56AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T15:29:13.859593Z","bundle_sha256":"ff84fbf3dea614ba4baa43c43ba98277385da444fb5953f1ecdc81cb5f46e869"}}