{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:SX6UPOIA4ZXU2ZGHERJR3FYJYK","short_pith_number":"pith:SX6UPOIA","canonical_record":{"source":{"id":"0808.0778","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-08-06T06:19:35Z","cross_cats_sorted":[],"title_canon_sha256":"09ae6c4888813e0f5b70209c8c8bcd8e35b0e1fa70a68b73f38115b5685cf58e","abstract_canon_sha256":"622110af3c061657e6e39e402e3c7d75c6c58e65a99f1366f79b640ba3627dc8"},"schema_version":"1.0"},"canonical_sha256":"95fd47b900e66f4d64c724531d9709c2879e0e3f74a41cfa70472793eb4bb850","source":{"kind":"arxiv","id":"0808.0778","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0808.0778","created_at":"2026-07-04T17:12:15Z"},{"alias_kind":"arxiv_version","alias_value":"0808.0778v1","created_at":"2026-07-04T17:12:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0808.0778","created_at":"2026-07-04T17:12:15Z"},{"alias_kind":"pith_short_12","alias_value":"SX6UPOIA4ZXU","created_at":"2026-07-04T17:12:15Z"},{"alias_kind":"pith_short_16","alias_value":"SX6UPOIA4ZXU2ZGH","created_at":"2026-07-04T17:12:15Z"},{"alias_kind":"pith_short_8","alias_value":"SX6UPOIA","created_at":"2026-07-04T17:12:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:SX6UPOIA4ZXU2ZGHERJR3FYJYK","target":"record","payload":{"canonical_record":{"source":{"id":"0808.0778","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-08-06T06:19:35Z","cross_cats_sorted":[],"title_canon_sha256":"09ae6c4888813e0f5b70209c8c8bcd8e35b0e1fa70a68b73f38115b5685cf58e","abstract_canon_sha256":"622110af3c061657e6e39e402e3c7d75c6c58e65a99f1366f79b640ba3627dc8"},"schema_version":"1.0"},"canonical_sha256":"95fd47b900e66f4d64c724531d9709c2879e0e3f74a41cfa70472793eb4bb850","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:12:15.423567Z","signature_b64":"UOz+W0hnggUvEWA5GbEFslxJZbMCf01bdd8ydOIDKcgR6db+A075I54rV3Xk48W3iCyGcXC4mGg6wptMtlrBBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"95fd47b900e66f4d64c724531d9709c2879e0e3f74a41cfa70472793eb4bb850","last_reissued_at":"2026-07-04T17:12:15.423209Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:12:15.423209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0808.0778","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":"2026-07-04T17:12:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OxOJ07HuCi4wB0aLcIhVW5WZix1LapP7fiR0mKi5LVkAvfORJn/FtAiXWIoRFbs+CwDddEWMJedhHzIYJIHSAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:17:40.215881Z"},"content_sha256":"e9d5b6993e3d41a44d2a9c0c574949fb2d00362f1abb922280cb56203d7e8731","schema_version":"1.0","event_id":"sha256:e9d5b6993e3d41a44d2a9c0c574949fb2d00362f1abb922280cb56203d7e8731"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:SX6UPOIA4ZXU2ZGHERJR3FYJYK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Double quantum dot as detector of spin bias","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Qing-Feng Sun, Shun-Qing Shen, Yanxia Xing","submitted_at":"2008-08-06T06:19:35Z","abstract_excerpt":"It was proposed that a double quantum dot can be used to be a detector of spin bias. Electron transport through a double quantum dot is investigated theoretically when a pure spin bias is applied on two conducting leads contacted to the quantum dot. It is found that the spin polarization in the left and right dots may be induced spontaneously while the intra-dot levels are located within the spin bias window and breaks the left-right symmetry of the two quantum dots. As a result, a large current emerges. For an open external circuit an charge bias instead of a charge current will be induced in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0808.0778","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0808.0778/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T17:12:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d3grYGkMdeJBM6GceSyJ3zwvt0o4EsHpxNIZrgpOoykZyvNIHCT/d9Oa73OnfHS+nuKtgaW1AUGYfs/8XAAUCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:17:40.216389Z"},"content_sha256":"7a791569446ecb3e5941a8595ade62d5067df12e4ccdfafc4efc7d5f2ee9867c","schema_version":"1.0","event_id":"sha256:7a791569446ecb3e5941a8595ade62d5067df12e4ccdfafc4efc7d5f2ee9867c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SX6UPOIA4ZXU2ZGHERJR3FYJYK/bundle.json","state_url":"https://pith.science/pith/SX6UPOIA4ZXU2ZGHERJR3FYJYK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SX6UPOIA4ZXU2ZGHERJR3FYJYK/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":"2026-08-03T16:17:40Z","links":{"resolver":"https://pith.science/pith/SX6UPOIA4ZXU2ZGHERJR3FYJYK","bundle":"https://pith.science/pith/SX6UPOIA4ZXU2ZGHERJR3FYJYK/bundle.json","state":"https://pith.science/pith/SX6UPOIA4ZXU2ZGHERJR3FYJYK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SX6UPOIA4ZXU2ZGHERJR3FYJYK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:SX6UPOIA4ZXU2ZGHERJR3FYJYK","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":"622110af3c061657e6e39e402e3c7d75c6c58e65a99f1366f79b640ba3627dc8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-08-06T06:19:35Z","title_canon_sha256":"09ae6c4888813e0f5b70209c8c8bcd8e35b0e1fa70a68b73f38115b5685cf58e"},"schema_version":"1.0","source":{"id":"0808.0778","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0808.0778","created_at":"2026-07-04T17:12:15Z"},{"alias_kind":"arxiv_version","alias_value":"0808.0778v1","created_at":"2026-07-04T17:12:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0808.0778","created_at":"2026-07-04T17:12:15Z"},{"alias_kind":"pith_short_12","alias_value":"SX6UPOIA4ZXU","created_at":"2026-07-04T17:12:15Z"},{"alias_kind":"pith_short_16","alias_value":"SX6UPOIA4ZXU2ZGH","created_at":"2026-07-04T17:12:15Z"},{"alias_kind":"pith_short_8","alias_value":"SX6UPOIA","created_at":"2026-07-04T17:12:15Z"}],"graph_snapshots":[{"event_id":"sha256:7a791569446ecb3e5941a8595ade62d5067df12e4ccdfafc4efc7d5f2ee9867c","target":"graph","created_at":"2026-07-04T17:12:15Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0808.0778/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It was proposed that a double quantum dot can be used to be a detector of spin bias. Electron transport through a double quantum dot is investigated theoretically when a pure spin bias is applied on two conducting leads contacted to the quantum dot. It is found that the spin polarization in the left and right dots may be induced spontaneously while the intra-dot levels are located within the spin bias window and breaks the left-right symmetry of the two quantum dots. As a result, a large current emerges. For an open external circuit an charge bias instead of a charge current will be induced in","authors_text":"Qing-Feng Sun, Shun-Qing Shen, Yanxia Xing","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-08-06T06:19:35Z","title":"Double quantum dot as detector of spin bias"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0808.0778","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:e9d5b6993e3d41a44d2a9c0c574949fb2d00362f1abb922280cb56203d7e8731","target":"record","created_at":"2026-07-04T17:12:15Z","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":"622110af3c061657e6e39e402e3c7d75c6c58e65a99f1366f79b640ba3627dc8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-08-06T06:19:35Z","title_canon_sha256":"09ae6c4888813e0f5b70209c8c8bcd8e35b0e1fa70a68b73f38115b5685cf58e"},"schema_version":"1.0","source":{"id":"0808.0778","kind":"arxiv","version":1}},"canonical_sha256":"95fd47b900e66f4d64c724531d9709c2879e0e3f74a41cfa70472793eb4bb850","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"95fd47b900e66f4d64c724531d9709c2879e0e3f74a41cfa70472793eb4bb850","first_computed_at":"2026-07-04T17:12:15.423209Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:12:15.423209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UOz+W0hnggUvEWA5GbEFslxJZbMCf01bdd8ydOIDKcgR6db+A075I54rV3Xk48W3iCyGcXC4mGg6wptMtlrBBw==","signature_status":"signed_v1","signed_at":"2026-07-04T17:12:15.423567Z","signed_message":"canonical_sha256_bytes"},"source_id":"0808.0778","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e9d5b6993e3d41a44d2a9c0c574949fb2d00362f1abb922280cb56203d7e8731","sha256:7a791569446ecb3e5941a8595ade62d5067df12e4ccdfafc4efc7d5f2ee9867c"],"state_sha256":"9e3cac4b9e9e76633cfb7b3de1ca3c300fa6284db2fc12fb15a30a4716d1c4b4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ahXGUCKe4D8V6K4mBV1Ubcp6mCFGsFPzYskzx4OnZ4n8wHcA5TR6PUsh8OVtt0OYpP24C7Bt6vKX0W35F5oRAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:17:40.219925Z","bundle_sha256":"a21d0b20174db65e203759a3636c6e1b0a8261f587aa2c5c64e1f7c5003e9850"}}