{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:F33CVZ5VIGAHRGUBF4VVUDMLQA","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":"2d5f61d64c4b4b6f608652dc709ea677483ca4f0fc6c188138302f946a653846","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-07-09T01:41:58Z","title_canon_sha256":"4e558ca27e383edca6c8e15aab8e872c90a683157c850c12706a5ec2fbe4c34f"},"schema_version":"1.0","source":{"id":"1307.2318","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.2318","created_at":"2026-05-18T03:07:23Z"},{"alias_kind":"arxiv_version","alias_value":"1307.2318v1","created_at":"2026-05-18T03:07:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.2318","created_at":"2026-05-18T03:07:23Z"},{"alias_kind":"pith_short_12","alias_value":"F33CVZ5VIGAH","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"F33CVZ5VIGAHRGUB","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"F33CVZ5V","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:b833183a8673bfd4b9c013bb677a5bfd52465a8d8d60cc7c21e8f4cfc50c3f37","target":"graph","created_at":"2026-05-18T03:07:23Z","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":"Efficient electron-refrigeration based on a normal-metal/spin-filter/superconductor junction is proposed and demonstrated theoretically. The spin-filtering effect leads to values of the cooling power much higher than in conventional normal-metal/nonmagnetic-insulator/superconductor coolers and allows for an efficient extraction of heat from the normal metal. We demonstrate that highly efficient cooling can be realized in both ballistic and diffusive multi-channel junctions in which the reduction of the electron temperature from 300 mK to around 50 mK can be achieved. Our results indicate the p","authors_text":"Andrey S. Vasenko, Asier Ozaeta, Frank W. J. Hekking, F. Sebastian Bergeret, Shiro Kawabata","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-07-09T01:41:58Z","title":"Efficient electron refrigeration using superconductor/spin-filter devices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.2318","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:f7cad25f0b2d98e0327c904e95eda625cf6eeb66f2f90f3c7fff1fa88dce49ac","target":"record","created_at":"2026-05-18T03:07:23Z","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":"2d5f61d64c4b4b6f608652dc709ea677483ca4f0fc6c188138302f946a653846","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-07-09T01:41:58Z","title_canon_sha256":"4e558ca27e383edca6c8e15aab8e872c90a683157c850c12706a5ec2fbe4c34f"},"schema_version":"1.0","source":{"id":"1307.2318","kind":"arxiv","version":1}},"canonical_sha256":"2ef62ae7b54180789a812f2b5a0d8b803666fce8bb7f90c748491a7a8f43727e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ef62ae7b54180789a812f2b5a0d8b803666fce8bb7f90c748491a7a8f43727e","first_computed_at":"2026-05-18T03:07:23.176198Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:07:23.176198Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dsT0qkHaODGxhxazp7FjtyvEP8fR4EUnuxi89G8/xNVpEy1OW6so7RI7Tgo8XVTDROyoaQ5XAztD2BS8PczfBw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:07:23.176899Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.2318","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f7cad25f0b2d98e0327c904e95eda625cf6eeb66f2f90f3c7fff1fa88dce49ac","sha256:b833183a8673bfd4b9c013bb677a5bfd52465a8d8d60cc7c21e8f4cfc50c3f37"],"state_sha256":"bf649bea485cf67f377f81a9f3d7fd244347bfca5ea5c39b548aceb74cccd3cb"}