{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:UHMLXW5SSBEQNYPMITGKP76PI4","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":"759213c3a17221585e04f1736d1bb24b56f54688186297c2c82b84e821d412a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-06-24T16:16:05Z","title_canon_sha256":"9864ca7caa9129d051c3371ee152609280818b6d200024f6fcca24fae71a6862"},"schema_version":"1.0","source":{"id":"0906.4513","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0906.4513","created_at":"2026-07-04T17:22:27Z"},{"alias_kind":"arxiv_version","alias_value":"0906.4513v2","created_at":"2026-07-04T17:22:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.4513","created_at":"2026-07-04T17:22:27Z"},{"alias_kind":"pith_short_12","alias_value":"UHMLXW5SSBEQ","created_at":"2026-07-04T17:22:27Z"},{"alias_kind":"pith_short_16","alias_value":"UHMLXW5SSBEQNYPM","created_at":"2026-07-04T17:22:27Z"},{"alias_kind":"pith_short_8","alias_value":"UHMLXW5S","created_at":"2026-07-04T17:22:27Z"}],"graph_snapshots":[{"event_id":"sha256:09ba24d2035c516d35529514f85d77ef8e07cd0dd7b048da12634158bce20fce","target":"graph","created_at":"2026-07-04T17:22:27Z","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/0906.4513/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Low-temperature specific heat (SH) and resistivity were measured on Ba(Fe_{1-x}Co_x)_2As_2 single crystals in wide doping region. A sizeable residual specific heat coefficient \\gamma_0 was observed in the low temperature limit of all samples. The specific heat jump near T_c, i.e. \\Delta C/T|_{T_c} and the upper critical field H_{c2}^c (H||c) were also determined. It is found that -\\gamma_0, \\Delta C/T|_{T_c}, \\sqrt{H_{c2}^c} and T_c all shared a similar evolution with doping. All these can be well understood within the model of S$^\\pm$ pairing symmetry when accounting the Co-dopants as unitary","authors_text":"Bing Shen, Bin Zeng, Cong Ren, Gang Mu, Hai-Hu Wen, Lei Fang, Lei Shan, Peng Cheng, Zhaosheng Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-06-24T16:16:05Z","title":"Impurity Scattering Effect on Superconductivity and the Violation of Anderson Theorem in Ba(Fe_{1-x}Co_x)_2As_2 Single Crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.4513","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":"sha256:237e61554a8296f7795b839ac9f44cd1b43449150a1a546fd60f8953b5e84409","target":"record","created_at":"2026-07-04T17:22:27Z","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":"759213c3a17221585e04f1736d1bb24b56f54688186297c2c82b84e821d412a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-06-24T16:16:05Z","title_canon_sha256":"9864ca7caa9129d051c3371ee152609280818b6d200024f6fcca24fae71a6862"},"schema_version":"1.0","source":{"id":"0906.4513","kind":"arxiv","version":2}},"canonical_sha256":"a1d8bbdbb2904906e1ec44cca7ffcf470da8eac5c7bc689e247c3803c0ae129a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a1d8bbdbb2904906e1ec44cca7ffcf470da8eac5c7bc689e247c3803c0ae129a","first_computed_at":"2026-07-04T17:22:27.958113Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:22:27.958113Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7CYWjfvI+Sva8SjR/Qqvn2I4s5LmLseP3rDdndRGbi+1mQLrGONs25eD7K1pEhzFtvDPqznPl1peJozEM2viDw==","signature_status":"signed_v1","signed_at":"2026-07-04T17:22:27.958515Z","signed_message":"canonical_sha256_bytes"},"source_id":"0906.4513","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:237e61554a8296f7795b839ac9f44cd1b43449150a1a546fd60f8953b5e84409","sha256:09ba24d2035c516d35529514f85d77ef8e07cd0dd7b048da12634158bce20fce"],"state_sha256":"8c62723b2b603d9c6922f3a3be174bad5861e787b9651c0a8a5509fe7ab92f4b"}