{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:4GFUZURHXOWJLFN2ZWVH5NNGKP","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":"a72f7f1ae9fe94a65303185d2603f7bafcb18db46def2f75241b3537d552caf2","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-03-20T16:11:26Z","title_canon_sha256":"bc4cb0c96aac9d8ff1a30df4bd6ceabe8a3ff10048e89a383021645a57d10275"},"schema_version":"1.0","source":{"id":"0803.3021","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0803.3021","created_at":"2026-07-04T15:10:27Z"},{"alias_kind":"arxiv_version","alias_value":"0803.3021v2","created_at":"2026-07-04T15:10:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0803.3021","created_at":"2026-07-04T15:10:27Z"},{"alias_kind":"pith_short_12","alias_value":"4GFUZURHXOWJ","created_at":"2026-07-04T15:10:27Z"},{"alias_kind":"pith_short_16","alias_value":"4GFUZURHXOWJLFN2","created_at":"2026-07-04T15:10:27Z"},{"alias_kind":"pith_short_8","alias_value":"4GFUZURH","created_at":"2026-07-04T15:10:27Z"}],"graph_snapshots":[{"event_id":"sha256:3c3bfd2ed9d77391fc1cc48d2d992cdcfae5b3ad61605ef9aca15e0cebc843c6","target":"graph","created_at":"2026-07-04T15:10:27Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0803.3021/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"By partially substituting the tri-valence element La with di-valence element Sr in $LaOFeAs$, we introduced holes into the system. For the first time, we successfully synthesized the hole doped new superconductors $(La_{1-x}Sr_x)OFeAs$. The maximum superconducting transition temperature at about 25 K was observed at a doping level of x = 0.13. It is evidenced by Hall effect measurements that the conduction in this type of material is dominated by hole-like charge carriers, rather than electron-like ones. Together with the data of the electron doped system $La(O_{1-x}F_x)FeAs$, a generic phase ","authors_text":"Gang Mu, Hai-Hu Wen, Huan Yang, Lei Fang, Xiyu Zhu","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-03-20T16:11:26Z","title":"Superconductivity at 25 K in hole doped $(La_{1-x}Sr_x)OFeAs$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0803.3021","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":"sha256:8a04a1512351cd2d2ffd02f55157da5cd9d7b1d9968e054c86f30ad4a0e70e2a","target":"record","created_at":"2026-07-04T15:10:27Z","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":"a72f7f1ae9fe94a65303185d2603f7bafcb18db46def2f75241b3537d552caf2","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-03-20T16:11:26Z","title_canon_sha256":"bc4cb0c96aac9d8ff1a30df4bd6ceabe8a3ff10048e89a383021645a57d10275"},"schema_version":"1.0","source":{"id":"0803.3021","kind":"arxiv","version":2}},"canonical_sha256":"e18b4cd227bbac9595bacdaa7eb5a653edb138fccc48990647b48e97ba97b82d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e18b4cd227bbac9595bacdaa7eb5a653edb138fccc48990647b48e97ba97b82d","first_computed_at":"2026-07-04T15:10:27.125959Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:10:27.125959Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7CuC2gk4A0F+2Xx4276w7emsESHbG+VPSSHlliiMwLZ891JbXVvBewVRpmk4L3qqzPykAZ1hmeOcol6/3CG1Ag==","signature_status":"signed_v1","signed_at":"2026-07-04T15:10:27.126519Z","signed_message":"canonical_sha256_bytes"},"source_id":"0803.3021","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a04a1512351cd2d2ffd02f55157da5cd9d7b1d9968e054c86f30ad4a0e70e2a","sha256:3c3bfd2ed9d77391fc1cc48d2d992cdcfae5b3ad61605ef9aca15e0cebc843c6"],"state_sha256":"a1d7fd3e264d8631eb24f606c0261df40820c355ddf241b3aed637d1b22f8960"}