{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:BSKJXLOXZYZ766LVJCDLE3H47T","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":"29821d80f18eea076c8d5dce5294da9aa98e75ff71dad4b37de35f1ad4742e45","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-26T01:38:05Z","title_canon_sha256":"3193c531140654227d9a0079f78b91d28ede40168965ef4fbde6baec7ce699a2"},"schema_version":"1.0","source":{"id":"1201.5425","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.5425","created_at":"2026-05-18T03:55:23Z"},{"alias_kind":"arxiv_version","alias_value":"1201.5425v2","created_at":"2026-05-18T03:55:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.5425","created_at":"2026-05-18T03:55:23Z"},{"alias_kind":"pith_short_12","alias_value":"BSKJXLOXZYZ7","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"BSKJXLOXZYZ766LV","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"BSKJXLOX","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:a2b2e0037a6d66c2c43fa9752204db461a7ad346e3cc561a7d72bf44043e6ebb","target":"graph","created_at":"2026-05-18T03:55:23Z","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":"We have determined the Fermi surface in KOs$_2$O$_6$ ($T_c$ = 9.6 K and $B_{c2} \\sim$ 32 T) via de Haas-van Alphen (dHvA) oscillation measurements and a band structure calculation. We find effective masses up to 26(1) $m_e$ ($m_e$ is the free electron mass), which are unusually heavy for compounds where the mass enhancement is mostly due to electron-phonon interactions. Orbit-resolved mass enhancement parameters $\\lambda_{dHvA}$ are large but fairly homogeneous, concentrated in the range 5 -- 8. We discuss origins of the large homogeneous mass enhancement in terms of rattling motion of the K i","authors_text":"Andhika Kiswandhi, Eun-Sang Choi, Hisatomo Harima, James S. Brooks, Jun-ichi Yamaura, Kota Sato, Nobuyuki Kurita, Shinya Uji, Taichi Terashima, Zenji Hiroi","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-26T01:38:05Z","title":"Large and homogeneous mass enhancement in the rattling-induced superconductor KOs$_2$O$_6$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.5425","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":"sha256:3ad66f735f69a4e99461076dd57422691cca92a0307d45fe5053dcdd211f8392","target":"record","created_at":"2026-05-18T03:55:23Z","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":"29821d80f18eea076c8d5dce5294da9aa98e75ff71dad4b37de35f1ad4742e45","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-26T01:38:05Z","title_canon_sha256":"3193c531140654227d9a0079f78b91d28ede40168965ef4fbde6baec7ce699a2"},"schema_version":"1.0","source":{"id":"1201.5425","kind":"arxiv","version":2}},"canonical_sha256":"0c949badd7ce33ff79754886b26cfcfce196f6aed627d9ea7cacec82762eb5eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c949badd7ce33ff79754886b26cfcfce196f6aed627d9ea7cacec82762eb5eb","first_computed_at":"2026-05-18T03:55:23.307747Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:55:23.307747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"x15RfEVYHAo9eN7NqyqEyjBjkQgQVV8EZfTC8vifd6xnatmQbx90PvTiMaCdEV+lRarHC6Z6cZ/I+RyIAWwGBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:55:23.308275Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.5425","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ad66f735f69a4e99461076dd57422691cca92a0307d45fe5053dcdd211f8392","sha256:a2b2e0037a6d66c2c43fa9752204db461a7ad346e3cc561a7d72bf44043e6ebb"],"state_sha256":"da80dcd2a462fce21131213425db7c7895f7f3fa16904192a1838512b5bff47b"}