{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:WIHRHPZ2RGTURH7J7VH52TXIAY","short_pith_number":"pith:WIHRHPZ2","canonical_record":{"source":{"id":"1410.4277","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-16T02:33:56Z","cross_cats_sorted":[],"title_canon_sha256":"22bba88b41088c74aa6e4052dfd5ad3c1e1131b5d3e9c2745fe7020ee0540e07","abstract_canon_sha256":"64f6834fc948e82094318f61b2b44e490144b2687f5802ad05bed1550b4eca97"},"schema_version":"1.0"},"canonical_sha256":"b20f13bf3a89a7489fe9fd4fdd4ee806238f9801d0fdc6fa8ab6a5c384663771","source":{"kind":"arxiv","id":"1410.4277","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.4277","created_at":"2026-05-18T01:41:47Z"},{"alias_kind":"arxiv_version","alias_value":"1410.4277v1","created_at":"2026-05-18T01:41:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.4277","created_at":"2026-05-18T01:41:47Z"},{"alias_kind":"pith_short_12","alias_value":"WIHRHPZ2RGTU","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WIHRHPZ2RGTURH7J","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WIHRHPZ2","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:WIHRHPZ2RGTURH7J7VH52TXIAY","target":"record","payload":{"canonical_record":{"source":{"id":"1410.4277","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-16T02:33:56Z","cross_cats_sorted":[],"title_canon_sha256":"22bba88b41088c74aa6e4052dfd5ad3c1e1131b5d3e9c2745fe7020ee0540e07","abstract_canon_sha256":"64f6834fc948e82094318f61b2b44e490144b2687f5802ad05bed1550b4eca97"},"schema_version":"1.0"},"canonical_sha256":"b20f13bf3a89a7489fe9fd4fdd4ee806238f9801d0fdc6fa8ab6a5c384663771","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:47.997640Z","signature_b64":"B/a67ADmHhtRXdsptKGbrOsnzTh7pwkJuPpqjjS3tJE2mKuYwKNZUGyZWNYJH2Kf0A9bDoA4UGTCzwEpSICUBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b20f13bf3a89a7489fe9fd4fdd4ee806238f9801d0fdc6fa8ab6a5c384663771","last_reissued_at":"2026-05-18T01:41:47.997180Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:47.997180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.4277","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":"2026-05-18T01:41:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wzaMFMu+q9ADVArFuZ3y3z9rAR163ck2Fy+T53M6VUQJfIv1LhMD3HhUbvlwfytF3+B8se7jmOLxdClXoX1oBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:16:38.309656Z"},"content_sha256":"6a7683aa24690ecb085966915e70c8f1dcde3b0b7f77021ed98d59e0f0433fe1","schema_version":"1.0","event_id":"sha256:6a7683aa24690ecb085966915e70c8f1dcde3b0b7f77021ed98d59e0f0433fe1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:WIHRHPZ2RGTURH7J7VH52TXIAY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Large spin accumulation voltages in epitaxial Mn5Ge3 contacts on Ge without oxide tunnel barrier","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Spiesser, H. Saito, K. Ando, R. Jansen, S. Yuasa","submitted_at":"2014-10-16T02:33:56Z","abstract_excerpt":"Spin injection in high-quality epitaxial Mn5Ge3 Schottky contacts on n-type Ge has been investigated using a three-terminal Hanle effect measurement. Clear Hanle and inverted Hanle signals with features characteristic of spin accumulation and spin precession are observed up to 200 K. Strikingly, the observed spin voltage is several orders of magnitude larger than predicted by the theory of spin injection and diffusive spin transport. Since the devices have no oxide tunnel barrier, the discrepancy between theory and experiments cannot be explained by the often-invoked spin accumulation in local"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.4277","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":"2026-05-18T01:41:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vWF73IzH+2QPvFQnV25zlvwGP6eNemi2nwEpKEvmZ3RGi+swYmLwN0YTzZ0xZ0+J6xO+B7WjwFkWkeTmOhvuBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:16:38.310307Z"},"content_sha256":"d0ad45c32d2ad378ceedbbf800b04f0edeedc9914a84540146b797cf4cc0a53f","schema_version":"1.0","event_id":"sha256:d0ad45c32d2ad378ceedbbf800b04f0edeedc9914a84540146b797cf4cc0a53f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WIHRHPZ2RGTURH7J7VH52TXIAY/bundle.json","state_url":"https://pith.science/pith/WIHRHPZ2RGTURH7J7VH52TXIAY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WIHRHPZ2RGTURH7J7VH52TXIAY/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":"2026-05-28T22:16:38Z","links":{"resolver":"https://pith.science/pith/WIHRHPZ2RGTURH7J7VH52TXIAY","bundle":"https://pith.science/pith/WIHRHPZ2RGTURH7J7VH52TXIAY/bundle.json","state":"https://pith.science/pith/WIHRHPZ2RGTURH7J7VH52TXIAY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WIHRHPZ2RGTURH7J7VH52TXIAY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:WIHRHPZ2RGTURH7J7VH52TXIAY","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":"64f6834fc948e82094318f61b2b44e490144b2687f5802ad05bed1550b4eca97","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-16T02:33:56Z","title_canon_sha256":"22bba88b41088c74aa6e4052dfd5ad3c1e1131b5d3e9c2745fe7020ee0540e07"},"schema_version":"1.0","source":{"id":"1410.4277","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.4277","created_at":"2026-05-18T01:41:47Z"},{"alias_kind":"arxiv_version","alias_value":"1410.4277v1","created_at":"2026-05-18T01:41:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.4277","created_at":"2026-05-18T01:41:47Z"},{"alias_kind":"pith_short_12","alias_value":"WIHRHPZ2RGTU","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WIHRHPZ2RGTURH7J","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WIHRHPZ2","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:d0ad45c32d2ad378ceedbbf800b04f0edeedc9914a84540146b797cf4cc0a53f","target":"graph","created_at":"2026-05-18T01:41:47Z","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":"Spin injection in high-quality epitaxial Mn5Ge3 Schottky contacts on n-type Ge has been investigated using a three-terminal Hanle effect measurement. Clear Hanle and inverted Hanle signals with features characteristic of spin accumulation and spin precession are observed up to 200 K. Strikingly, the observed spin voltage is several orders of magnitude larger than predicted by the theory of spin injection and diffusive spin transport. Since the devices have no oxide tunnel barrier, the discrepancy between theory and experiments cannot be explained by the often-invoked spin accumulation in local","authors_text":"A. Spiesser, H. Saito, K. Ando, R. Jansen, S. Yuasa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-16T02:33:56Z","title":"Large spin accumulation voltages in epitaxial Mn5Ge3 contacts on Ge without oxide tunnel barrier"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.4277","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":"sha256:6a7683aa24690ecb085966915e70c8f1dcde3b0b7f77021ed98d59e0f0433fe1","target":"record","created_at":"2026-05-18T01:41:47Z","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":"64f6834fc948e82094318f61b2b44e490144b2687f5802ad05bed1550b4eca97","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-16T02:33:56Z","title_canon_sha256":"22bba88b41088c74aa6e4052dfd5ad3c1e1131b5d3e9c2745fe7020ee0540e07"},"schema_version":"1.0","source":{"id":"1410.4277","kind":"arxiv","version":1}},"canonical_sha256":"b20f13bf3a89a7489fe9fd4fdd4ee806238f9801d0fdc6fa8ab6a5c384663771","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b20f13bf3a89a7489fe9fd4fdd4ee806238f9801d0fdc6fa8ab6a5c384663771","first_computed_at":"2026-05-18T01:41:47.997180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:47.997180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"B/a67ADmHhtRXdsptKGbrOsnzTh7pwkJuPpqjjS3tJE2mKuYwKNZUGyZWNYJH2Kf0A9bDoA4UGTCzwEpSICUBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:47.997640Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.4277","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a7683aa24690ecb085966915e70c8f1dcde3b0b7f77021ed98d59e0f0433fe1","sha256:d0ad45c32d2ad378ceedbbf800b04f0edeedc9914a84540146b797cf4cc0a53f"],"state_sha256":"fb52e80679f6c7ed6463a53a08d8e26074f608d3182bc13e24c1b5c2aac1a550"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lr0Bo7CZZDtXVqHCLxApU6IYDXNtwdNCrv20i4DCP2uyFPBwbheISgQOQ2Dp1NvVaZ/54uo6LT2jdBi2Q3nbDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T22:16:38.314036Z","bundle_sha256":"f84e05fc19dc0174a0aeab827f4fbd91fa72aba6b2d74473180a2b3cc33f6702"}}