{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:XZ3ZPVN2N5RDH6MIPHH7VQLH7C","short_pith_number":"pith:XZ3ZPVN2","canonical_record":{"source":{"id":"1312.0159","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-11-30T22:45:58Z","cross_cats_sorted":[],"title_canon_sha256":"5cac71e7668cc0e7dc1dbe61f3cc6875cb87006e055fc15b6c4c9e38cff161b3","abstract_canon_sha256":"b586038f17b3619ac25a6fb3839f78433d00a5faeee73f1ff1642e4b80c49a02"},"schema_version":"1.0"},"canonical_sha256":"be7797d5ba6f6233f98879cffac167f8ac1c095885bfcff8d2ffa7a4979072d2","source":{"kind":"arxiv","id":"1312.0159","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.0159","created_at":"2026-05-18T02:52:41Z"},{"alias_kind":"arxiv_version","alias_value":"1312.0159v1","created_at":"2026-05-18T02:52:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.0159","created_at":"2026-05-18T02:52:41Z"},{"alias_kind":"pith_short_12","alias_value":"XZ3ZPVN2N5RD","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XZ3ZPVN2N5RDH6MI","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XZ3ZPVN2","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:XZ3ZPVN2N5RDH6MIPHH7VQLH7C","target":"record","payload":{"canonical_record":{"source":{"id":"1312.0159","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-11-30T22:45:58Z","cross_cats_sorted":[],"title_canon_sha256":"5cac71e7668cc0e7dc1dbe61f3cc6875cb87006e055fc15b6c4c9e38cff161b3","abstract_canon_sha256":"b586038f17b3619ac25a6fb3839f78433d00a5faeee73f1ff1642e4b80c49a02"},"schema_version":"1.0"},"canonical_sha256":"be7797d5ba6f6233f98879cffac167f8ac1c095885bfcff8d2ffa7a4979072d2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:52:41.737292Z","signature_b64":"4Ztgcrv602ESPJ/9m6p9mCp08zfb9Hl+t6XROM2pIXSQ7XVJDBP2Q2GXPjMfaw3O+nKc//WR31KACdzZ2r+4CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be7797d5ba6f6233f98879cffac167f8ac1c095885bfcff8d2ffa7a4979072d2","last_reissued_at":"2026-05-18T02:52:41.736727Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:52:41.736727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.0159","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":"2026-05-18T02:52:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/rvuolZn3KnJ2WhMmh6HB0GvAq7QmIoZrtuEX1g5kmumtAtegszCD1XeHwJUpFybYlehg+pRNsBK8V1wp6fmBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T23:31:01.438303Z"},"content_sha256":"4947a51c5a276eb5279110c9283a909ce827ec602519a9e2412dc34cca089fc0","schema_version":"1.0","event_id":"sha256:4947a51c5a276eb5279110c9283a909ce827ec602519a9e2412dc34cca089fc0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:XZ3ZPVN2N5RDH6MIPHH7VQLH7C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fabrication and characterisation of nanospintronic devices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Baumgartner, C. Schoenenberger, J. Gramich, J. Samm, M. Weiss","submitted_at":"2013-11-30T22:45:58Z","abstract_excerpt":"We report an improved fabrication scheme for carbon based nanospintronic devices and demonstrate the necessity for a careful data analysis to investigate the fundamental physical mechanisms leading to magnetoresistance. The processing with a low-density polymer and an optimised recipe allows us to improve the electrical, magnetic and structural quality of ferromagnetic Permalloy contacts on lateral carbon nanotube (CNT) quantum dot spin valve devices, with comparable results for thermal and sputter deposition of the material. We show that spintronic nanostructures require an extended data anal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.0159","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":"2026-05-18T02:52:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2ynQWjgNDuX8K9atpqA6yB0Ix3joaWxl/Swd/nuRw8u2nuqViCnO9873oc5BLYmOsZtU5qwFAPLT5TznTKMVCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T23:31:01.438993Z"},"content_sha256":"c2188c4c9cf236b19ca75a44b080222287df705e05be6c999c41847f076f37bd","schema_version":"1.0","event_id":"sha256:c2188c4c9cf236b19ca75a44b080222287df705e05be6c999c41847f076f37bd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XZ3ZPVN2N5RDH6MIPHH7VQLH7C/bundle.json","state_url":"https://pith.science/pith/XZ3ZPVN2N5RDH6MIPHH7VQLH7C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XZ3ZPVN2N5RDH6MIPHH7VQLH7C/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":"2026-06-04T23:31:01Z","links":{"resolver":"https://pith.science/pith/XZ3ZPVN2N5RDH6MIPHH7VQLH7C","bundle":"https://pith.science/pith/XZ3ZPVN2N5RDH6MIPHH7VQLH7C/bundle.json","state":"https://pith.science/pith/XZ3ZPVN2N5RDH6MIPHH7VQLH7C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XZ3ZPVN2N5RDH6MIPHH7VQLH7C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:XZ3ZPVN2N5RDH6MIPHH7VQLH7C","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":"b586038f17b3619ac25a6fb3839f78433d00a5faeee73f1ff1642e4b80c49a02","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-11-30T22:45:58Z","title_canon_sha256":"5cac71e7668cc0e7dc1dbe61f3cc6875cb87006e055fc15b6c4c9e38cff161b3"},"schema_version":"1.0","source":{"id":"1312.0159","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.0159","created_at":"2026-05-18T02:52:41Z"},{"alias_kind":"arxiv_version","alias_value":"1312.0159v1","created_at":"2026-05-18T02:52:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.0159","created_at":"2026-05-18T02:52:41Z"},{"alias_kind":"pith_short_12","alias_value":"XZ3ZPVN2N5RD","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XZ3ZPVN2N5RDH6MI","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XZ3ZPVN2","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:c2188c4c9cf236b19ca75a44b080222287df705e05be6c999c41847f076f37bd","target":"graph","created_at":"2026-05-18T02:52:41Z","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 report an improved fabrication scheme for carbon based nanospintronic devices and demonstrate the necessity for a careful data analysis to investigate the fundamental physical mechanisms leading to magnetoresistance. The processing with a low-density polymer and an optimised recipe allows us to improve the electrical, magnetic and structural quality of ferromagnetic Permalloy contacts on lateral carbon nanotube (CNT) quantum dot spin valve devices, with comparable results for thermal and sputter deposition of the material. We show that spintronic nanostructures require an extended data anal","authors_text":"A. Baumgartner, C. Schoenenberger, J. Gramich, J. Samm, M. Weiss","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-11-30T22:45:58Z","title":"Fabrication and characterisation of nanospintronic devices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.0159","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":"sha256:4947a51c5a276eb5279110c9283a909ce827ec602519a9e2412dc34cca089fc0","target":"record","created_at":"2026-05-18T02:52:41Z","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":"b586038f17b3619ac25a6fb3839f78433d00a5faeee73f1ff1642e4b80c49a02","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-11-30T22:45:58Z","title_canon_sha256":"5cac71e7668cc0e7dc1dbe61f3cc6875cb87006e055fc15b6c4c9e38cff161b3"},"schema_version":"1.0","source":{"id":"1312.0159","kind":"arxiv","version":1}},"canonical_sha256":"be7797d5ba6f6233f98879cffac167f8ac1c095885bfcff8d2ffa7a4979072d2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be7797d5ba6f6233f98879cffac167f8ac1c095885bfcff8d2ffa7a4979072d2","first_computed_at":"2026-05-18T02:52:41.736727Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:52:41.736727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4Ztgcrv602ESPJ/9m6p9mCp08zfb9Hl+t6XROM2pIXSQ7XVJDBP2Q2GXPjMfaw3O+nKc//WR31KACdzZ2r+4CA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:52:41.737292Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.0159","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4947a51c5a276eb5279110c9283a909ce827ec602519a9e2412dc34cca089fc0","sha256:c2188c4c9cf236b19ca75a44b080222287df705e05be6c999c41847f076f37bd"],"state_sha256":"0c05dba09d66f12a2664e4209055a476e8068dd54956e6488e3db6c6697156e4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jhiN9wZ+tmCuD85YJie8VkgabVWsx5JhV/t1+1vcAUHZCgbDq3H+0bNFHgqaD+/Prgv/TO43eDrWKlaUjtH9CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T23:31:01.442524Z","bundle_sha256":"c7ffe8c9d48409454ce0c7a938d6b60ff7e5fdba81be33a8d650c53b26b8b0f9"}}