{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:K72Z66SSUNZLO2J3EWJKDWKBUW","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":"39ba7806c9434a562443110a53dd44e0e08de2f9da7b17592a4f6e327de9c272","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-09-24T22:22:58Z","title_canon_sha256":"044eaf413586bd34fd6b77b30978351282fe72333ce8f8dd86b0b09d75b5b37a"},"schema_version":"1.0","source":{"id":"1209.5447","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.5447","created_at":"2026-05-18T03:27:42Z"},{"alias_kind":"arxiv_version","alias_value":"1209.5447v2","created_at":"2026-05-18T03:27:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.5447","created_at":"2026-05-18T03:27:42Z"},{"alias_kind":"pith_short_12","alias_value":"K72Z66SSUNZL","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"K72Z66SSUNZLO2J3","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"K72Z66SS","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:e36af72db3d3399255d03b16b61ffebabd258386249997c838be477410a99a08","target":"graph","created_at":"2026-05-18T03:27:42Z","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":"A new layered Ti-based pnictide oxide superconductor, Ba1-xNaxTi2Sb2O (0.0 <= x <= 0.33), is reported. X-ray studies reveal it crystallizes in the tetragonal CeCr2Si2C structure. The undoped parent compound, BaTi2Sb2O (P4/mmm; a=4.1196(1){\\AA}; c=8.0951(2){\\AA}), exhibits a CDW/SDW transition at 54K. Upon chemical doping with Na, the CDW/SDW transition is systematically suppressed and super-conductivity arises with the critical temperatures, Tc, increasing to 5.5 K. Bulk superconductivity is confirmed by resistivity, magnetic and heat capacity measurements. Like the high-Tc cuprates and the ir","authors_text":"Angela M\\\"oller, Arnold M. Guloy, Bernd Lorenz, Joshua Tapp, Melissa Gooch, Paul C.W. Chu, Phuong Doan, Zhongjia Tang","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-09-24T22:22:58Z","title":"Ba1-xNaxTi2Sb2O (0.0 <= x <= 0.33): A Layered Titanium-based Pnictide Oxide Superconductor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.5447","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":"sha256:7f140da405b09fb3ad4dcd9b9a33991fe31d3f54f8f090cb13dad04e71a90728","target":"record","created_at":"2026-05-18T03:27:42Z","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":"39ba7806c9434a562443110a53dd44e0e08de2f9da7b17592a4f6e327de9c272","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-09-24T22:22:58Z","title_canon_sha256":"044eaf413586bd34fd6b77b30978351282fe72333ce8f8dd86b0b09d75b5b37a"},"schema_version":"1.0","source":{"id":"1209.5447","kind":"arxiv","version":2}},"canonical_sha256":"57f59f7a52a372b7693b2592a1d941a588bcf52faee2b20d02fc9d8e9f12acb0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57f59f7a52a372b7693b2592a1d941a588bcf52faee2b20d02fc9d8e9f12acb0","first_computed_at":"2026-05-18T03:27:42.758357Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:27:42.758357Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"07KGb/noJo0RsZMfuZVToGOyOzyTC34DL3JubVt9FAiEFnW3H6VbwyauWuOckRy4KXtBxt9QJN35AFcI+mQMCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:27:42.758773Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.5447","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f140da405b09fb3ad4dcd9b9a33991fe31d3f54f8f090cb13dad04e71a90728","sha256:e36af72db3d3399255d03b16b61ffebabd258386249997c838be477410a99a08"],"state_sha256":"88a0782b142c92bb5cb614c452e4336cf8bc36152ae7b2bd9b69987fa3231f06"}