{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:6DA63ZO33VNXGRICSU6YK5VX2S","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":"93116a5c4a961c6262b5f5de1388c3aa26cbcf78c36b9db119cc1f368dfcc943","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-02-03T10:07:58Z","title_canon_sha256":"55d50062b9bf4e8661ae1ec7b5e3bf8822aa00d710c7fa416a291655b7ac1d94"},"schema_version":"1.0","source":{"id":"1402.0325","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.0325","created_at":"2026-05-18T03:00:23Z"},{"alias_kind":"arxiv_version","alias_value":"1402.0325v1","created_at":"2026-05-18T03:00:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.0325","created_at":"2026-05-18T03:00:23Z"},{"alias_kind":"pith_short_12","alias_value":"6DA63ZO33VNX","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"6DA63ZO33VNXGRIC","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"6DA63ZO3","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:732088316491d8222a122ef222765b4b28c7cd36edccb8ae4d3ff2a3aca124ba","target":"graph","created_at":"2026-05-18T03:00:23Z","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 report the complex dielectric function of high-quality $A\\textrm{Fe}_2\\textrm{As}_2$, ($A$=Ca, Sr, Ba) single crystals with $T_{\\mathrm{N}}\\approx150\\ \\textrm{K}$, $200\\ \\textrm{K}$, and $138\\ \\textrm{K}$, respectively, determined by broadband spectroscopic ellipsometry at temperatures $10\\leq T\\leq300\\ \\textrm{K}$ and wavenumbers from $100\\ \\textrm{cm}^{-1}$ to $52000\\ \\textrm{cm}^{-1}$. In $\\textrm{CaFe}_2\\textrm{As}_2$ we identify the optical spin-density--wave gap $2\\Delta_{\\mathrm{SDW}}\\approx1250\\ \\textrm{cm}^{-1}$. The $2\\Delta_{\\mathrm{SDW}}/(k_{\\mathrm{B}}T_{\\mathrm{N}})$ ratio, ch","authors_text":"A. Charnukha, A. V. Boris, B. Keimer, C. T. Lin, D. L. Sun, D. Pr\\\"opper, T. I. Larkin, T. Wolf, Z. W. Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-02-03T10:07:58Z","title":"Spin-density-wave-induced anomalies in the optical conductivity of AFe2As2, (A=Ca, Sr, Ba) single-crystalline iron pnictides"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.0325","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:bf6b1c355ffb8d5db2912610d3075cd7fcbf22465feb464a8f76c229a67f9e26","target":"record","created_at":"2026-05-18T03:00:23Z","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":"93116a5c4a961c6262b5f5de1388c3aa26cbcf78c36b9db119cc1f368dfcc943","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-02-03T10:07:58Z","title_canon_sha256":"55d50062b9bf4e8661ae1ec7b5e3bf8822aa00d710c7fa416a291655b7ac1d94"},"schema_version":"1.0","source":{"id":"1402.0325","kind":"arxiv","version":1}},"canonical_sha256":"f0c1ede5dbdd5b734502953d8576b7d4a252e600b7d05e03ca78e7a0ffc08f0c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f0c1ede5dbdd5b734502953d8576b7d4a252e600b7d05e03ca78e7a0ffc08f0c","first_computed_at":"2026-05-18T03:00:23.875456Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:00:23.875456Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f/FsIysiCgUWxKeMPlvd3WEjcMpx46hOHG1FgDM6Rwrayh+l61/dAuNsBVZkqaCIYAF84WZ/N5T0DhU5Jz2HAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:00:23.876301Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.0325","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf6b1c355ffb8d5db2912610d3075cd7fcbf22465feb464a8f76c229a67f9e26","sha256:732088316491d8222a122ef222765b4b28c7cd36edccb8ae4d3ff2a3aca124ba"],"state_sha256":"85b834df249f50303ef4b3da2d6d745b7b5a07eac99765843dafa7a184006cee"}