{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:TENHWKJDTPKM3J7YBOGT5OZLNE","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":"5a4defafaacda69f3cc22ee2d82399d8e05d01c6f3a05ea08ef52608af48ac2c","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-03-19T01:42:13Z","title_canon_sha256":"8e802b296767588a0146a7c62cfe3a393c2ddc9a0646b6ea247153ab87112fce"},"schema_version":"1.0","source":{"id":"0803.2740","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0803.2740","created_at":"2026-05-18T02:16:00Z"},{"alias_kind":"arxiv_version","alias_value":"0803.2740v4","created_at":"2026-05-18T02:16:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0803.2740","created_at":"2026-05-18T02:16:00Z"},{"alias_kind":"pith_short_12","alias_value":"TENHWKJDTPKM","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"TENHWKJDTPKM3J7Y","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"TENHWKJD","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:17a577ad17816e3e088eb70afcc52e7724b99bd70c889116d5175d8f870e7f6b","target":"graph","created_at":"2026-05-18T02:16:00Z","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 argue that the newly discovered superconductivity in a nearly magnetic, Fe-based layered compound is unconventional and mediated by antiferromagnetic spin fluctuations, though different from the usual superexchange and specific to this compound. This resulting state is an example of extended s-wave pairing with a sign reversal of the order parameter between different Fermi surface sheets. The main role of doping in this scenario is to lower the density of states and suppress the pair-breaking ferromagnetic fluctuations.","authors_text":"D.J. Singh, I.I. Mazin, M.D. Johannes, M.H. Du","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-03-19T01:42:13Z","title":"Unconventional sign-reversing superconductivity in LaFeAsO_(1-x)F_x"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0803.2740","kind":"arxiv","version":4},"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":"sha256:5445aeb9e8840a00e04396d417f1c71c67393d66bab16521ba7f3fd34282200a","target":"record","created_at":"2026-05-18T02:16:00Z","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":"5a4defafaacda69f3cc22ee2d82399d8e05d01c6f3a05ea08ef52608af48ac2c","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-03-19T01:42:13Z","title_canon_sha256":"8e802b296767588a0146a7c62cfe3a393c2ddc9a0646b6ea247153ab87112fce"},"schema_version":"1.0","source":{"id":"0803.2740","kind":"arxiv","version":4}},"canonical_sha256":"991a7b29239bd4cda7f80b8d3ebb2b690a79d1fc84877de40d4b58a6acbf19ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"991a7b29239bd4cda7f80b8d3ebb2b690a79d1fc84877de40d4b58a6acbf19ab","first_computed_at":"2026-05-18T02:16:00.087191Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:16:00.087191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zK0v3P1D+uPnXlURZi74DYTjcvHcCe/G+FXdJ1YQ7XzMpk2Nhhi/nv3AKoyfb2sy8qhoQ5DsA5+Dta5TO3gDDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:16:00.087715Z","signed_message":"canonical_sha256_bytes"},"source_id":"0803.2740","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5445aeb9e8840a00e04396d417f1c71c67393d66bab16521ba7f3fd34282200a","sha256:17a577ad17816e3e088eb70afcc52e7724b99bd70c889116d5175d8f870e7f6b"],"state_sha256":"7271258985576812f63615967b489c1c65993150ac7b5fa98273f943afe350c0"}