{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:RHOQ5PFGIRTZUDP6FWSHYEHLTY","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":"3b14529f90685bec9de4ac51720ab8705ead1845fd3ee2dfbdf69e440dd1ff41","cross_cats_sorted":["physics.chem-ph","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-23T05:22:40Z","title_canon_sha256":"b699287ad23679462e054760eeb6a2a1c430bffc445009b50d0ac9b912d4017c"},"schema_version":"1.0","source":{"id":"1809.08535","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.08535","created_at":"2026-07-05T00:07:05Z"},{"alias_kind":"arxiv_version","alias_value":"1809.08535v2","created_at":"2026-07-05T00:07:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.08535","created_at":"2026-07-05T00:07:05Z"},{"alias_kind":"pith_short_12","alias_value":"RHOQ5PFGIRTZ","created_at":"2026-07-05T00:07:05Z"},{"alias_kind":"pith_short_16","alias_value":"RHOQ5PFGIRTZUDP6","created_at":"2026-07-05T00:07:05Z"},{"alias_kind":"pith_short_8","alias_value":"RHOQ5PFG","created_at":"2026-07-05T00:07:05Z"}],"graph_snapshots":[{"event_id":"sha256:c1752176c7afb1904540354a78132dd4856dbacd960c3036fdd32edfea63f717","target":"graph","created_at":"2026-07-05T00:07:05Z","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/1809.08535/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Refrigerators soak up heat energy from a low-temperature region and dump it into a higher temperature region using external work done on the system. Refrigerators are useful in cooling down a system to very low temperatures. In this letter, we show that a monolayer of strained graphene can be used in designing a quantum refrigerator with an excellent coefficient of performance and large cooling power. The operating point at which the strained graphene device works best as a quantum refrigerator is derived and the effects of strain and temperature on cooling are discussed.","authors_text":"Arjun Mani, Colin Benjamin","cross_cats":["physics.chem-ph","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-23T05:22:40Z","title":"Optimal quantum refrigeration in strained graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.08535","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:c70bf17582a62b4a5704b0c52da2996132ed5b1deee7da2245ce80175effaa9a","target":"record","created_at":"2026-07-05T00:07:05Z","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":"3b14529f90685bec9de4ac51720ab8705ead1845fd3ee2dfbdf69e440dd1ff41","cross_cats_sorted":["physics.chem-ph","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-23T05:22:40Z","title_canon_sha256":"b699287ad23679462e054760eeb6a2a1c430bffc445009b50d0ac9b912d4017c"},"schema_version":"1.0","source":{"id":"1809.08535","kind":"arxiv","version":2}},"canonical_sha256":"89dd0ebca644679a0dfe2da47c10eb9e009ad1fc2671f5c1b2469939ec415e7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"89dd0ebca644679a0dfe2da47c10eb9e009ad1fc2671f5c1b2469939ec415e7d","first_computed_at":"2026-07-05T00:07:05.662045Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:07:05.662045Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sEbf03jCH/QMO+yQpy0a4q7oCEiWNSmzb66Nt09KMZvJpyuIeDQAh2liAkqz0hHsDbVbrH0147z1aAKbvtLFDA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:07:05.662666Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.08535","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c70bf17582a62b4a5704b0c52da2996132ed5b1deee7da2245ce80175effaa9a","sha256:c1752176c7afb1904540354a78132dd4856dbacd960c3036fdd32edfea63f717"],"state_sha256":"67d034f1738b523e6a2d64a68ce4369cd988e93a6351be6455c945bf7964fdf8"}