{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:ERXKQDSMHJRBIXVTPLFII6KU22","short_pith_number":"pith:ERXKQDSM","schema_version":"1.0","canonical_sha256":"246ea80e4c3a62145eb37aca847954d69029f44ca35741545094a5934e946cd3","source":{"kind":"arxiv","id":"1905.12388","version":1},"attestation_state":"computed","paper":{"title":"Direct Entropy Measurement in a Mesoscopic Quantum System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Christian Olsen, Geoffrey C. Gardner, Joshua Folk, Michael Manfra, Mohammad Samani, Nikolaus Hartman, Saeed Fallahi, Silvia L\\\"uscher","submitted_at":"2019-05-29T12:52:59Z","abstract_excerpt":"The entropy of an electronic system offers important insights into the nature of its quantum mechanical ground state. This is particularly valuable in cases where the state is difficult to identify by conventional experimental probes, such as conductance. Traditionally, entropy measurements are based on bulk properties, such as heat capacity, that are easily observed in macroscopic samples but are unmeasurably small in systems that consist of only a few particles. In this work, we develop a mesoscopic circuit to directly measure the entropy of just a few electrons, and demonstrate its efficacy"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1905.12388","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-05-29T12:52:59Z","cross_cats_sorted":[],"title_canon_sha256":"c8f8bc1b4344a7c22d73e98dd0a87bc1dbe6f71f5f8f5e7bc2ac8352560284b9","abstract_canon_sha256":"d2a49e147071b0abe6561e38ed5d736c77bf3b1d1f1a354fef4d2941dee10eab"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:44.494206Z","signature_b64":"+6jfUiOFPTup9f3CPhRbY6YpuBx3dphYN9j4FzR0GvfpyZex9Nx77+3mP72HHC0UF6NjsWS+wdHWujJRh+vVAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"246ea80e4c3a62145eb37aca847954d69029f44ca35741545094a5934e946cd3","last_reissued_at":"2026-05-17T23:44:44.493420Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:44.493420Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Direct Entropy Measurement in a Mesoscopic Quantum System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Christian Olsen, Geoffrey C. Gardner, Joshua Folk, Michael Manfra, Mohammad Samani, Nikolaus Hartman, Saeed Fallahi, Silvia L\\\"uscher","submitted_at":"2019-05-29T12:52:59Z","abstract_excerpt":"The entropy of an electronic system offers important insights into the nature of its quantum mechanical ground state. This is particularly valuable in cases where the state is difficult to identify by conventional experimental probes, such as conductance. Traditionally, entropy measurements are based on bulk properties, such as heat capacity, that are easily observed in macroscopic samples but are unmeasurably small in systems that consist of only a few particles. In this work, we develop a mesoscopic circuit to directly measure the entropy of just a few electrons, and demonstrate its efficacy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.12388","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1905.12388","created_at":"2026-05-17T23:44:44.493553+00:00"},{"alias_kind":"arxiv_version","alias_value":"1905.12388v1","created_at":"2026-05-17T23:44:44.493553+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.12388","created_at":"2026-05-17T23:44:44.493553+00:00"},{"alias_kind":"pith_short_12","alias_value":"ERXKQDSMHJRB","created_at":"2026-05-18T12:33:15.570797+00:00"},{"alias_kind":"pith_short_16","alias_value":"ERXKQDSMHJRBIXVT","created_at":"2026-05-18T12:33:15.570797+00:00"},{"alias_kind":"pith_short_8","alias_value":"ERXKQDSM","created_at":"2026-05-18T12:33:15.570797+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.03876","citing_title":"Remote entropy measurement in coupled quantum dots","ref_index":7,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ERXKQDSMHJRBIXVTPLFII6KU22","json":"https://pith.science/pith/ERXKQDSMHJRBIXVTPLFII6KU22.json","graph_json":"https://pith.science/api/pith-number/ERXKQDSMHJRBIXVTPLFII6KU22/graph.json","events_json":"https://pith.science/api/pith-number/ERXKQDSMHJRBIXVTPLFII6KU22/events.json","paper":"https://pith.science/paper/ERXKQDSM"},"agent_actions":{"view_html":"https://pith.science/pith/ERXKQDSMHJRBIXVTPLFII6KU22","download_json":"https://pith.science/pith/ERXKQDSMHJRBIXVTPLFII6KU22.json","view_paper":"https://pith.science/paper/ERXKQDSM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1905.12388&json=true","fetch_graph":"https://pith.science/api/pith-number/ERXKQDSMHJRBIXVTPLFII6KU22/graph.json","fetch_events":"https://pith.science/api/pith-number/ERXKQDSMHJRBIXVTPLFII6KU22/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ERXKQDSMHJRBIXVTPLFII6KU22/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ERXKQDSMHJRBIXVTPLFII6KU22/action/storage_attestation","attest_author":"https://pith.science/pith/ERXKQDSMHJRBIXVTPLFII6KU22/action/author_attestation","sign_citation":"https://pith.science/pith/ERXKQDSMHJRBIXVTPLFII6KU22/action/citation_signature","submit_replication":"https://pith.science/pith/ERXKQDSMHJRBIXVTPLFII6KU22/action/replication_record"}},"created_at":"2026-05-17T23:44:44.493553+00:00","updated_at":"2026-05-17T23:44:44.493553+00:00"}