{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:5NGESG5CHN7YVECGK6VZ5EFDSY","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":"277527588c2b117b1abdd6c10e81e94bd459699a732df35e0b010acc7065bc8c","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-02T00:59:40Z","title_canon_sha256":"aee4efbfdbeabb4442693e032c67e580a7e37638f523dd99dd374798ed398253"},"schema_version":"1.0","source":{"id":"1304.0512","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.0512","created_at":"2026-05-18T01:50:50Z"},{"alias_kind":"arxiv_version","alias_value":"1304.0512v1","created_at":"2026-05-18T01:50:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.0512","created_at":"2026-05-18T01:50:50Z"},{"alias_kind":"pith_short_12","alias_value":"5NGESG5CHN7Y","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"5NGESG5CHN7YVECG","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"5NGESG5C","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:42f7b16954e9b6df3534742fe8ef208e580d3902eb2dbd9f028c1d3c30624416","target":"graph","created_at":"2026-05-18T01:50:50Z","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 on Cu nuclear quadrupole resonance (NQR) and NMR studies of an optimally hole-doped superconductor Ca2-xNaxCuO2Cl2 (Tc ~ 28 K for x ~ 0.2). In spite of robust oxygen composition, we observed a multiple broad NQR frequency spectrum and nonexponential Cu nuclear spin-lattice relaxation, being similar to those of La2-xSrxCuO4-d.","authors_text":"I. Yamada, M. Azuma, M. Takano, T. Machi, Y. Itoh","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-02T00:59:40Z","title":"Cu NQR and NMR Studies of Optimally Doped Ca2-xNaxCuO2Cl2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.0512","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":"sha256:4bb62f0f67e1abb20e5539d4f03befb672336da633eba86879fc76d4abc4c0b1","target":"record","created_at":"2026-05-18T01:50:50Z","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":"277527588c2b117b1abdd6c10e81e94bd459699a732df35e0b010acc7065bc8c","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-02T00:59:40Z","title_canon_sha256":"aee4efbfdbeabb4442693e032c67e580a7e37638f523dd99dd374798ed398253"},"schema_version":"1.0","source":{"id":"1304.0512","kind":"arxiv","version":1}},"canonical_sha256":"eb4c491ba23b7f8a904657ab9e90a3961b5ef1781c82a6c107d737268be156d5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb4c491ba23b7f8a904657ab9e90a3961b5ef1781c82a6c107d737268be156d5","first_computed_at":"2026-05-18T01:50:50.230830Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:50.230830Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Jiqgj+xM+69XyPx3UKgBq/lsjGh5aoxIhjkQK4GynOQ6b4u7dS5dhJeUDP8QYuoUobJoxyoKponyAATTkUMvAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:50.231550Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.0512","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4bb62f0f67e1abb20e5539d4f03befb672336da633eba86879fc76d4abc4c0b1","sha256:42f7b16954e9b6df3534742fe8ef208e580d3902eb2dbd9f028c1d3c30624416"],"state_sha256":"c2daa1110254c07241310537f58dea6c509eade84673611b1ecb618ebcec408c"}