{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:MT2STKVJNDV5S4SVFAU2NWSEPB","short_pith_number":"pith:MT2STKVJ","schema_version":"1.0","canonical_sha256":"64f529aaa968ebd972552829a6da447859ed139548a645b942ffd2a84ff6bcb5","source":{"kind":"arxiv","id":"0802.3240","version":1},"attestation_state":"computed","paper":{"title":"NMR study on the local structure in La-based high-Tc cuprates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.str-el","authors_text":"A. Oosawa, J. Tonishi, K. Yamada, M. Fujita, T. Adachi, T. Goto, T. Suzuki, Y. Koike","submitted_at":"2008-02-22T00:49:29Z","abstract_excerpt":"To date, there has been no evidence for the macroscopic structural phase transition to the low temperature tetragonal structure (LTT) with a space group P42/ncm in high-TC cuprate of rare earth-free La2-xSrxCuO4 (LSCO). By investigating Cu-NMR on single crystals, we have found that spatially incoherent LTT structure emerges below 50 K in the sample with x=0.12. This incoherent structure is considered to play a key role for the slight depression of the superconductivity around x=1/8."},"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":"0802.3240","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-02-22T00:49:29Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"3777c89adc0453d6cefeb6e1e551138d86b4561bb15b18ec6af1dc9a8b149f3c","abstract_canon_sha256":"923492f727d118287ad108ef802181f8fbba4cb7d8713f4421ea570ff19ac668"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:16:00.928721Z","signature_b64":"y1Zcc29vv8/+Myls8OlNjE0WbZ9phHNRgcvlpu2p1PieLOOD2wwgHXX5I8bb9Dzdu7eGEJlC6X4FlQoyt+YtDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"64f529aaa968ebd972552829a6da447859ed139548a645b942ffd2a84ff6bcb5","last_reissued_at":"2026-05-18T02:16:00.928293Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:16:00.928293Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"NMR study on the local structure in La-based high-Tc cuprates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.str-el","authors_text":"A. Oosawa, J. Tonishi, K. Yamada, M. Fujita, T. Adachi, T. Goto, T. Suzuki, Y. Koike","submitted_at":"2008-02-22T00:49:29Z","abstract_excerpt":"To date, there has been no evidence for the macroscopic structural phase transition to the low temperature tetragonal structure (LTT) with a space group P42/ncm in high-TC cuprate of rare earth-free La2-xSrxCuO4 (LSCO). By investigating Cu-NMR on single crystals, we have found that spatially incoherent LTT structure emerges below 50 K in the sample with x=0.12. This incoherent structure is considered to play a key role for the slight depression of the superconductivity around x=1/8."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.3240","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":"0802.3240","created_at":"2026-05-18T02:16:00.928366+00:00"},{"alias_kind":"arxiv_version","alias_value":"0802.3240v1","created_at":"2026-05-18T02:16:00.928366+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0802.3240","created_at":"2026-05-18T02:16:00.928366+00:00"},{"alias_kind":"pith_short_12","alias_value":"MT2STKVJNDV5","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_16","alias_value":"MT2STKVJNDV5S4SV","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_8","alias_value":"MT2STKVJ","created_at":"2026-05-18T12:25:57.157939+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/MT2STKVJNDV5S4SVFAU2NWSEPB","json":"https://pith.science/pith/MT2STKVJNDV5S4SVFAU2NWSEPB.json","graph_json":"https://pith.science/api/pith-number/MT2STKVJNDV5S4SVFAU2NWSEPB/graph.json","events_json":"https://pith.science/api/pith-number/MT2STKVJNDV5S4SVFAU2NWSEPB/events.json","paper":"https://pith.science/paper/MT2STKVJ"},"agent_actions":{"view_html":"https://pith.science/pith/MT2STKVJNDV5S4SVFAU2NWSEPB","download_json":"https://pith.science/pith/MT2STKVJNDV5S4SVFAU2NWSEPB.json","view_paper":"https://pith.science/paper/MT2STKVJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0802.3240&json=true","fetch_graph":"https://pith.science/api/pith-number/MT2STKVJNDV5S4SVFAU2NWSEPB/graph.json","fetch_events":"https://pith.science/api/pith-number/MT2STKVJNDV5S4SVFAU2NWSEPB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MT2STKVJNDV5S4SVFAU2NWSEPB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MT2STKVJNDV5S4SVFAU2NWSEPB/action/storage_attestation","attest_author":"https://pith.science/pith/MT2STKVJNDV5S4SVFAU2NWSEPB/action/author_attestation","sign_citation":"https://pith.science/pith/MT2STKVJNDV5S4SVFAU2NWSEPB/action/citation_signature","submit_replication":"https://pith.science/pith/MT2STKVJNDV5S4SVFAU2NWSEPB/action/replication_record"}},"created_at":"2026-05-18T02:16:00.928366+00:00","updated_at":"2026-05-18T02:16:00.928366+00:00"}