{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:2V6XGGABNPPBX7LQ3EO52MCJZS","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":"70eb44ddde99934dc81112acae0a5dfb04087b0a39f5f2e99eee501da3348ef1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-12-09T17:33:21Z","title_canon_sha256":"2b634d0a397dc4af860c1dd9eccb8ff22836c2061ad22330dbdf444a29e786be"},"schema_version":"1.0","source":{"id":"0912.1811","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.1811","created_at":"2026-05-18T03:23:56Z"},{"alias_kind":"arxiv_version","alias_value":"0912.1811v1","created_at":"2026-05-18T03:23:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.1811","created_at":"2026-05-18T03:23:56Z"},{"alias_kind":"pith_short_12","alias_value":"2V6XGGABNPPB","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"2V6XGGABNPPBX7LQ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"2V6XGGAB","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:5fe7e51b57028ea4e5472bbbccd30f95cb45d4886d0eceaec4a52b5e449941c7","target":"graph","created_at":"2026-05-18T03:23:56Z","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":"By applying an exact unitary transformation to a two-band hamiltonian which also includes the effects due to large pnictogen polarizabilities, we show that an attractive spin-mediated Hubbard term appears in the $d_{xz}$, $d_{yz}$ nearest-neighbour channel. This pairing mechanism implies a singlet superconducting order parameter in iron pnictides.","authors_text":"A. Ormeci, A. R. Bishop, M. Gulacsi, R. Chan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-12-09T17:33:21Z","title":"Pairing mechanism in Fe pnictide superconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.1811","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":"sha256:1a77cfaf620e517adbf33553760265c652cc75a27b22fb06d53be4bd7e041ed8","target":"record","created_at":"2026-05-18T03:23:56Z","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":"70eb44ddde99934dc81112acae0a5dfb04087b0a39f5f2e99eee501da3348ef1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-12-09T17:33:21Z","title_canon_sha256":"2b634d0a397dc4af860c1dd9eccb8ff22836c2061ad22330dbdf444a29e786be"},"schema_version":"1.0","source":{"id":"0912.1811","kind":"arxiv","version":1}},"canonical_sha256":"d57d7318016bde1bfd70d91ddd3049ccb5529e2d598c61f7edb138155a9234aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d57d7318016bde1bfd70d91ddd3049ccb5529e2d598c61f7edb138155a9234aa","first_computed_at":"2026-05-18T03:23:56.538192Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:23:56.538192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9/7zkEgyCLbagNaQM4rBxDWokOvogl8L7JDTRojzilnuQYNMI4l0LDY+3b8EqX1so5yCRjU0e5/KNeZYLYnkAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:23:56.538849Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.1811","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a77cfaf620e517adbf33553760265c652cc75a27b22fb06d53be4bd7e041ed8","sha256:5fe7e51b57028ea4e5472bbbccd30f95cb45d4886d0eceaec4a52b5e449941c7"],"state_sha256":"39d48df5c57a7edfd0bb85cd79bb94110e29550ce2d15b62b7e0883e773f6ae6"}