{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:O7CH3RBJT6WQLUINVZSMBF22VE","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":"f1e89a7d4cbfaa272b9459fefcc5b13f2d44ac174326a968594e31abbc3bc1fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-04-10T08:52:50Z","title_canon_sha256":"bdae51f19965350d90fc4a7e172a5f8fa4ee0fae880c4d57ee6123aeb5342ba8"},"schema_version":"1.0","source":{"id":"1404.2738","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.2738","created_at":"2026-05-18T02:48:56Z"},{"alias_kind":"arxiv_version","alias_value":"1404.2738v1","created_at":"2026-05-18T02:48:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.2738","created_at":"2026-05-18T02:48:56Z"},{"alias_kind":"pith_short_12","alias_value":"O7CH3RBJT6WQ","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"O7CH3RBJT6WQLUIN","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"O7CH3RBJ","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:51de6b24939ed583f30e10355a22cfb1ef2f1e5bf147f3e1241d85d84b653360","target":"graph","created_at":"2026-05-18T02:48:56Z","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":"Synthesis of a series of layered iron arsenides Ca1-xRExFeAs2 (112) was attempted by heating at 1000 C under a high-pressure of 2 GPa. The 112 phase successfully forms with RE = La, Ce, Nd, Sm, Eu and Gd, while Tb, Dy and Ho substituted and RE free samples does not contain the 112 phase. The Ce, Nd, Sm, Eu and Gd doped Ca1-xRExFeAs2 are new compounds. All of them exhibit superconducting transition except for the Ce doped sample. The behaviour of the critical temperature, with the RE ionic radii have been investigated.","authors_text":"Akira Iyo, Akiyasu Yamamoto, Alberto Sala, Hiraku Ogino, Hiroshi Eisaki, Hiroyuki Yakita, Jun-ichi Shimoyama, Kohji Kishio, Marina Putti, Masaya Fujioka, Shigeyuki Ishida, Tomoyuki Okada, Yoshihiko Takano","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-04-10T08:52:50Z","title":"Synthesis and physical properties of Ca1-xRExFeAs2 with RE = La ~ Gd"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.2738","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":"sha256:514e0955b29ca6f3ce45ca1a7736ad44313086252f9c4afe314111285182f537","target":"record","created_at":"2026-05-18T02:48:56Z","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":"f1e89a7d4cbfaa272b9459fefcc5b13f2d44ac174326a968594e31abbc3bc1fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-04-10T08:52:50Z","title_canon_sha256":"bdae51f19965350d90fc4a7e172a5f8fa4ee0fae880c4d57ee6123aeb5342ba8"},"schema_version":"1.0","source":{"id":"1404.2738","kind":"arxiv","version":1}},"canonical_sha256":"77c47dc4299fad05d10dae64c0975aa91e0dc80f3abecdf6d7f1303c6d46cb32","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"77c47dc4299fad05d10dae64c0975aa91e0dc80f3abecdf6d7f1303c6d46cb32","first_computed_at":"2026-05-18T02:48:56.285975Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:48:56.285975Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LxtLro4l257pwCPajtmzUHyo1oaISghoOUWgDWo+ToRyBNOSAz1hHrevAOR6jD1KhOFSlgVXYWpjJo/x8R/7BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:48:56.286762Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.2738","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:514e0955b29ca6f3ce45ca1a7736ad44313086252f9c4afe314111285182f537","sha256:51de6b24939ed583f30e10355a22cfb1ef2f1e5bf147f3e1241d85d84b653360"],"state_sha256":"3ddd0e63e894aa6bea4913832a440032671155e017e13cc60c44831cfb84ad5f"}