{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:FVSXZKZXKEUJLKDM5HPCIPPG2P","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":"69ff5eec0ebffd7b9f270adf5998f4729f04451d7d5e7efadf61d912ed3da557","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-03-22T00:21:02Z","title_canon_sha256":"055145140e3e5fa398a92fbcc207ef3ddc22025e9dddd34ed182f547a00c81f1"},"schema_version":"1.0","source":{"id":"1103.4178","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.4178","created_at":"2026-05-18T04:26:21Z"},{"alias_kind":"arxiv_version","alias_value":"1103.4178v1","created_at":"2026-05-18T04:26:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.4178","created_at":"2026-05-18T04:26:21Z"},{"alias_kind":"pith_short_12","alias_value":"FVSXZKZXKEUJ","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FVSXZKZXKEUJLKDM","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FVSXZKZX","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:467737777c40b54e3b518e4402444d922847411829ba42c5193f67b7db1a6606","target":"graph","created_at":"2026-05-18T04:26:21Z","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 report the direct observation of multiple `spin zeroes' in angle-dependent magnetic quantum oscillations measured up to 85T in YBa2Cu3O6+x, at which the amplitude falls to a deep minimum accompanied by a phase inversion of the measured quantum oscillations, enabling the product of the effective mass and effective g-factor m*g* to be tightly constrained. We find an evolution of the location of the spin zeros with applied magnetic field, and suggest that this effect and the absence of a spin zero at low angles can be produced by more than one Fermi surface component, and an effective g-factor","authors_text":"C. H. Mielke, D. A. Bonn, F. F. Balakirev, G. G. Lonzarich, M. M. Altarawneh, N. Harrison, Ruixing Liang, Suchitra E. Sebastian, W. N. Hardy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-03-22T00:21:02Z","title":"Direct observation of multiple spin zeroes in the underdoped high temperature superconductor YBa2Cu3O6+x"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.4178","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:d63720f714dfa998c9f983808eccd36b2019fcf7d57911d765809a7a1e0f8123","target":"record","created_at":"2026-05-18T04:26:21Z","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":"69ff5eec0ebffd7b9f270adf5998f4729f04451d7d5e7efadf61d912ed3da557","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-03-22T00:21:02Z","title_canon_sha256":"055145140e3e5fa398a92fbcc207ef3ddc22025e9dddd34ed182f547a00c81f1"},"schema_version":"1.0","source":{"id":"1103.4178","kind":"arxiv","version":1}},"canonical_sha256":"2d657cab37512895a86ce9de243de6d3c818b04ea4aa18d38c20d349a75d13d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d657cab37512895a86ce9de243de6d3c818b04ea4aa18d38c20d349a75d13d4","first_computed_at":"2026-05-18T04:26:21.426870Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:26:21.426870Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vNumEipYRu4SpJ0PBKf8Najm4c2lgB2XktN2M7vLxOpEjIhkwy3sOAGKr18o6Wf6mMgGwqntx98jUBVJWIvoDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:26:21.427460Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.4178","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d63720f714dfa998c9f983808eccd36b2019fcf7d57911d765809a7a1e0f8123","sha256:467737777c40b54e3b518e4402444d922847411829ba42c5193f67b7db1a6606"],"state_sha256":"ae785788f0f71d58b970a6db1df8b8a15a82d0a5611c80f71283d47315b49436"}