{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:VCWZE4LOOT7YTGRCAIU2ZZIKNA","short_pith_number":"pith:VCWZE4LO","schema_version":"1.0","canonical_sha256":"a8ad92716e74ff899a220229ace50a6832e9cfbff14720fb976b224f8fa85d1e","source":{"kind":"arxiv","id":"2606.23990","version":1},"attestation_state":"computed","paper":{"title":"Observation of even-denominator fractional quantum Hall states at $\\nu = 3/4$ and 5/4 in the lowest Landau level","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Adbhut Gupta, Chengyu Wang, Kirk W. Baldwin, Loren N. Pfeiffer, Mansour Shayegan, Siddharth Kumar Singh","submitted_at":"2026-06-22T22:48:25Z","abstract_excerpt":"Two-dimensional electron systems (2DESs) confined to wide GaAs quantum wells provide a unique platform to study exotic fractional quantum Hall states (FQHSs) because the 2DES has a bilayer charge distribution with significant interlayer tunneling. Precise control over the 2DES density allows the tuning of the interlayer tunneling over a wide range. Here, we present our discovery of new even-denominator FQHSs in the lowest Landau level (orbital index \\textit{N} = 0) at filling factors $\\nu = 3/4$ and 5/4 in an ultrahigh-quality 2DES confined to a 72.5-nm-wide GaAs quantum well. The ground state"},"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":"2606.23990","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-06-22T22:48:25Z","cross_cats_sorted":[],"title_canon_sha256":"1f474bab7f22ec14c5b21f79301a72664bc5f9553ea93f62ca4e42020d0da990","abstract_canon_sha256":"a3aa2e573cf5e5e5184bc9d94904728a45defd6779e854509f4373cd92725dad"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-24T00:14:32.427291Z","signature_b64":"Gf5Bx2VyRf8RxPRlKdBDQy2HH2O87GnTyF1PKW7QCXRInn+rYSHo6z5vXSDLWZzE6RyeScmLxy8odJC26E8rAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a8ad92716e74ff899a220229ace50a6832e9cfbff14720fb976b224f8fa85d1e","last_reissued_at":"2026-06-24T00:14:32.426888Z","signature_status":"signed_v1","first_computed_at":"2026-06-24T00:14:32.426888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observation of even-denominator fractional quantum Hall states at $\\nu = 3/4$ and 5/4 in the lowest Landau level","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Adbhut Gupta, Chengyu Wang, Kirk W. Baldwin, Loren N. Pfeiffer, Mansour Shayegan, Siddharth Kumar Singh","submitted_at":"2026-06-22T22:48:25Z","abstract_excerpt":"Two-dimensional electron systems (2DESs) confined to wide GaAs quantum wells provide a unique platform to study exotic fractional quantum Hall states (FQHSs) because the 2DES has a bilayer charge distribution with significant interlayer tunneling. Precise control over the 2DES density allows the tuning of the interlayer tunneling over a wide range. Here, we present our discovery of new even-denominator FQHSs in the lowest Landau level (orbital index \\textit{N} = 0) at filling factors $\\nu = 3/4$ and 5/4 in an ultrahigh-quality 2DES confined to a 72.5-nm-wide GaAs quantum well. The ground state"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.23990","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/2606.23990/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2606.23990","created_at":"2026-06-24T00:14:32.426952+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.23990v1","created_at":"2026-06-24T00:14:32.426952+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.23990","created_at":"2026-06-24T00:14:32.426952+00:00"},{"alias_kind":"pith_short_12","alias_value":"VCWZE4LOOT7Y","created_at":"2026-06-24T00:14:32.426952+00:00"},{"alias_kind":"pith_short_16","alias_value":"VCWZE4LOOT7YTGRC","created_at":"2026-06-24T00:14:32.426952+00:00"},{"alias_kind":"pith_short_8","alias_value":"VCWZE4LO","created_at":"2026-06-24T00:14:32.426952+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VCWZE4LOOT7YTGRCAIU2ZZIKNA","json":"https://pith.science/pith/VCWZE4LOOT7YTGRCAIU2ZZIKNA.json","graph_json":"https://pith.science/api/pith-number/VCWZE4LOOT7YTGRCAIU2ZZIKNA/graph.json","events_json":"https://pith.science/api/pith-number/VCWZE4LOOT7YTGRCAIU2ZZIKNA/events.json","paper":"https://pith.science/paper/VCWZE4LO"},"agent_actions":{"view_html":"https://pith.science/pith/VCWZE4LOOT7YTGRCAIU2ZZIKNA","download_json":"https://pith.science/pith/VCWZE4LOOT7YTGRCAIU2ZZIKNA.json","view_paper":"https://pith.science/paper/VCWZE4LO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.23990&json=true","fetch_graph":"https://pith.science/api/pith-number/VCWZE4LOOT7YTGRCAIU2ZZIKNA/graph.json","fetch_events":"https://pith.science/api/pith-number/VCWZE4LOOT7YTGRCAIU2ZZIKNA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VCWZE4LOOT7YTGRCAIU2ZZIKNA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VCWZE4LOOT7YTGRCAIU2ZZIKNA/action/storage_attestation","attest_author":"https://pith.science/pith/VCWZE4LOOT7YTGRCAIU2ZZIKNA/action/author_attestation","sign_citation":"https://pith.science/pith/VCWZE4LOOT7YTGRCAIU2ZZIKNA/action/citation_signature","submit_replication":"https://pith.science/pith/VCWZE4LOOT7YTGRCAIU2ZZIKNA/action/replication_record"}},"created_at":"2026-06-24T00:14:32.426952+00:00","updated_at":"2026-06-24T00:14:32.426952+00:00"}