{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:YZVPB5FURHAIHDYDK3YU37D2KR","short_pith_number":"pith:YZVPB5FU","canonical_record":{"source":{"id":"1003.2669","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-03-13T03:20:11Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"d75fc79b4ba84a877adb9953acb3afa9d6db8480fd884926cb4f56144b47b031","abstract_canon_sha256":"f6d0d0526bf7159dc4dd95c59794d2c13c2551a270edead8deae6776cf1dc9b3"},"schema_version":"1.0"},"canonical_sha256":"c66af0f4b489c0838f0356f14dfc7a5452c0a757053eb83ccd280e22dddee309","source":{"kind":"arxiv","id":"1003.2669","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.2669","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"arxiv_version","alias_value":"1003.2669v2","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.2669","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"pith_short_12","alias_value":"YZVPB5FURHAI","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"YZVPB5FURHAIHDYD","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"YZVPB5FU","created_at":"2026-05-18T12:26:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:YZVPB5FURHAIHDYDK3YU37D2KR","target":"record","payload":{"canonical_record":{"source":{"id":"1003.2669","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-03-13T03:20:11Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"d75fc79b4ba84a877adb9953acb3afa9d6db8480fd884926cb4f56144b47b031","abstract_canon_sha256":"f6d0d0526bf7159dc4dd95c59794d2c13c2551a270edead8deae6776cf1dc9b3"},"schema_version":"1.0"},"canonical_sha256":"c66af0f4b489c0838f0356f14dfc7a5452c0a757053eb83ccd280e22dddee309","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:36:08.653251Z","signature_b64":"dYw/idJycl0rwQ1zTpuqM8W51c0mff2IVBLJ5+Uajl0u3bBVUa+7UEKj/iLg3fSnMq+G+UZzsnscnUrZmFlrDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c66af0f4b489c0838f0356f14dfc7a5452c0a757053eb83ccd280e22dddee309","last_reissued_at":"2026-05-18T04:36:08.652694Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:36:08.652694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1003.2669","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":"2026-05-18T04:36:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f9eP/SSzbFXwjSdp6SiM5ozt78EzA313307T6cMUwK3V3dzqNp1fVOQ8mGxVyuCDTRO6bitgJ9JpCROJTXVUAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T03:04:20.370146Z"},"content_sha256":"bd6c992ff31235f248235f75d7b438a3a762b8211bb94b730dc4f120d6208010","schema_version":"1.0","event_id":"sha256:bd6c992ff31235f248235f75d7b438a3a762b8211bb94b730dc4f120d6208010"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:YZVPB5FURHAIHDYDK3YU37D2KR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tunneling Spin Injection into Single Layer Graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. G. Swartz, Jared J. I. Wong, K. M. McCreary, K. Pi, R. K. Kawakami, Wei Han, Yan Li","submitted_at":"2010-03-13T03:20:11Z","abstract_excerpt":"We achieve tunneling spin injection from Co into single layer graphene (SLG) using TiO2 seeded MgO barriers. A non-local magnetoresistance ({\\Delta}RNL) of 130 {\\Omega} is observed at room temperature, which is the largest value observed in any material. Investigating {\\Delta}RNL vs. SLG conductivity from the transparent to the tunneling contact regimes demonstrates the contrasting behaviors predicted by the drift-diffusion theory of spin transport. Furthermore, tunnel barriers reduce the contact-induced spin relaxation and are therefore important for future investigations of spin relaxation i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.2669","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":"2026-05-18T04:36:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FALfHAEYCuNbtB/sw1Z2Fsx1ubc/WKZuEVQwVKxUF65kZF5wdK75BgT7p7N4zveWQpMShxC2J7Hl3Xl8PenAAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T03:04:20.370526Z"},"content_sha256":"28a6c9acae04594158f045ef403ef8e5b349641bc0beab7636a5ad14a0009344","schema_version":"1.0","event_id":"sha256:28a6c9acae04594158f045ef403ef8e5b349641bc0beab7636a5ad14a0009344"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YZVPB5FURHAIHDYDK3YU37D2KR/bundle.json","state_url":"https://pith.science/pith/YZVPB5FURHAIHDYDK3YU37D2KR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YZVPB5FURHAIHDYDK3YU37D2KR/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":"2026-06-22T03:04:20Z","links":{"resolver":"https://pith.science/pith/YZVPB5FURHAIHDYDK3YU37D2KR","bundle":"https://pith.science/pith/YZVPB5FURHAIHDYDK3YU37D2KR/bundle.json","state":"https://pith.science/pith/YZVPB5FURHAIHDYDK3YU37D2KR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YZVPB5FURHAIHDYDK3YU37D2KR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:YZVPB5FURHAIHDYDK3YU37D2KR","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":"f6d0d0526bf7159dc4dd95c59794d2c13c2551a270edead8deae6776cf1dc9b3","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-03-13T03:20:11Z","title_canon_sha256":"d75fc79b4ba84a877adb9953acb3afa9d6db8480fd884926cb4f56144b47b031"},"schema_version":"1.0","source":{"id":"1003.2669","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.2669","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"arxiv_version","alias_value":"1003.2669v2","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.2669","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"pith_short_12","alias_value":"YZVPB5FURHAI","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"YZVPB5FURHAIHDYD","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"YZVPB5FU","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:28a6c9acae04594158f045ef403ef8e5b349641bc0beab7636a5ad14a0009344","target":"graph","created_at":"2026-05-18T04:36:08Z","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 achieve tunneling spin injection from Co into single layer graphene (SLG) using TiO2 seeded MgO barriers. A non-local magnetoresistance ({\\Delta}RNL) of 130 {\\Omega} is observed at room temperature, which is the largest value observed in any material. Investigating {\\Delta}RNL vs. SLG conductivity from the transparent to the tunneling contact regimes demonstrates the contrasting behaviors predicted by the drift-diffusion theory of spin transport. Furthermore, tunnel barriers reduce the contact-induced spin relaxation and are therefore important for future investigations of spin relaxation i","authors_text":"A. G. Swartz, Jared J. I. Wong, K. M. McCreary, K. Pi, R. K. Kawakami, Wei Han, Yan Li","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-03-13T03:20:11Z","title":"Tunneling Spin Injection into Single Layer Graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.2669","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:bd6c992ff31235f248235f75d7b438a3a762b8211bb94b730dc4f120d6208010","target":"record","created_at":"2026-05-18T04:36:08Z","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":"f6d0d0526bf7159dc4dd95c59794d2c13c2551a270edead8deae6776cf1dc9b3","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-03-13T03:20:11Z","title_canon_sha256":"d75fc79b4ba84a877adb9953acb3afa9d6db8480fd884926cb4f56144b47b031"},"schema_version":"1.0","source":{"id":"1003.2669","kind":"arxiv","version":2}},"canonical_sha256":"c66af0f4b489c0838f0356f14dfc7a5452c0a757053eb83ccd280e22dddee309","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c66af0f4b489c0838f0356f14dfc7a5452c0a757053eb83ccd280e22dddee309","first_computed_at":"2026-05-18T04:36:08.652694Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:36:08.652694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dYw/idJycl0rwQ1zTpuqM8W51c0mff2IVBLJ5+Uajl0u3bBVUa+7UEKj/iLg3fSnMq+G+UZzsnscnUrZmFlrDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:36:08.653251Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.2669","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bd6c992ff31235f248235f75d7b438a3a762b8211bb94b730dc4f120d6208010","sha256:28a6c9acae04594158f045ef403ef8e5b349641bc0beab7636a5ad14a0009344"],"state_sha256":"60d8cc887ae4a8aa3b7f08d8e20826792f7389ebff88109e33e533657b1d4402"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YtVrbnn8N3ag+9BFn9v++0ldi+mMgFX23RbdYQvEInkY9bphj2fX2dUWgy7gecFbeqGHG1/GN0JndgKgqkDwCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T03:04:20.372718Z","bundle_sha256":"86facedcf2fcca982d6c367c7a6f4c09599aed916e977bb7aa511d72a2b23318"}}