{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:MHZTMQK2ZMZOQSUK3QYIPA3P5O","short_pith_number":"pith:MHZTMQK2","schema_version":"1.0","canonical_sha256":"61f336415acb32e84a8adc3087836febb05a5b47cb4ceb4f42020eae3fd010e4","source":{"kind":"arxiv","id":"0807.1040","version":1},"attestation_state":"computed","paper":{"title":"Optical spectroscopy of superconducting Ba{0.55}K{0.45}Fe2As2: evidence for strong coupling to low energy bosons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"D. Huvonen, J.P. Carbotte, J. Yang, N. Ni, P. C. Canfield, S. L. Budko, T. Room, T. Timusk, U. Nagel","submitted_at":"2008-07-07T15:29:09Z","abstract_excerpt":"Optical spectroscopy on single crystals of the new iron arsenide superconductor Ba{0.55}K{0.45}Fe2As2 shows that the infrared spectrum consists of two major components: a strong metallic Drude band and a well separated mid infrared absorption centered at 0.7 eV. It is difficult to separate the two components unambiguously but several fits of Lorentzian peaks suggest a model with a Drude peak having a plasma frequency of 1.8 to 2.1 eV and a midinfrared peak with a plasma frequency of 2.5 eV. In contrast to the cuprate superconductors the scattering rate obtained from the extended Drude model sa"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0807.1040","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-07-07T15:29:09Z","cross_cats_sorted":[],"title_canon_sha256":"bf7ff1f16ee85c408a00c70ddf9a4134fe0a36852be2d28a15588d1997c1c8bc","abstract_canon_sha256":"66fe07854aed6378a523ef839baa817ed179c0ad36c5eabceeb0951d5ff3459d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:18.469807Z","signature_b64":"Bssb98ROukHH9nrB4TM/aR41T46UNOVW7ND+6Qb0YlOl2sgxg+9iw6d/5ZLKXcrxpFDG+ACiy/ZtW9B+LtCfDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"61f336415acb32e84a8adc3087836febb05a5b47cb4ceb4f42020eae3fd010e4","last_reissued_at":"2026-05-18T03:24:18.469121Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:18.469121Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Optical spectroscopy of superconducting Ba{0.55}K{0.45}Fe2As2: evidence for strong coupling to low energy bosons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"D. Huvonen, J.P. Carbotte, J. Yang, N. Ni, P. C. Canfield, S. L. Budko, T. Room, T. Timusk, U. Nagel","submitted_at":"2008-07-07T15:29:09Z","abstract_excerpt":"Optical spectroscopy on single crystals of the new iron arsenide superconductor Ba{0.55}K{0.45}Fe2As2 shows that the infrared spectrum consists of two major components: a strong metallic Drude band and a well separated mid infrared absorption centered at 0.7 eV. It is difficult to separate the two components unambiguously but several fits of Lorentzian peaks suggest a model with a Drude peak having a plasma frequency of 1.8 to 2.1 eV and a midinfrared peak with a plasma frequency of 2.5 eV. In contrast to the cuprate superconductors the scattering rate obtained from the extended Drude model sa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0807.1040","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"0807.1040","created_at":"2026-05-18T03:24:18.469223+00:00"},{"alias_kind":"arxiv_version","alias_value":"0807.1040v1","created_at":"2026-05-18T03:24:18.469223+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0807.1040","created_at":"2026-05-18T03:24:18.469223+00:00"},{"alias_kind":"pith_short_12","alias_value":"MHZTMQK2ZMZO","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_16","alias_value":"MHZTMQK2ZMZOQSUK","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_8","alias_value":"MHZTMQK2","created_at":"2026-05-18T12:25:57.157939+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MHZTMQK2ZMZOQSUK3QYIPA3P5O","json":"https://pith.science/pith/MHZTMQK2ZMZOQSUK3QYIPA3P5O.json","graph_json":"https://pith.science/api/pith-number/MHZTMQK2ZMZOQSUK3QYIPA3P5O/graph.json","events_json":"https://pith.science/api/pith-number/MHZTMQK2ZMZOQSUK3QYIPA3P5O/events.json","paper":"https://pith.science/paper/MHZTMQK2"},"agent_actions":{"view_html":"https://pith.science/pith/MHZTMQK2ZMZOQSUK3QYIPA3P5O","download_json":"https://pith.science/pith/MHZTMQK2ZMZOQSUK3QYIPA3P5O.json","view_paper":"https://pith.science/paper/MHZTMQK2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0807.1040&json=true","fetch_graph":"https://pith.science/api/pith-number/MHZTMQK2ZMZOQSUK3QYIPA3P5O/graph.json","fetch_events":"https://pith.science/api/pith-number/MHZTMQK2ZMZOQSUK3QYIPA3P5O/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MHZTMQK2ZMZOQSUK3QYIPA3P5O/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MHZTMQK2ZMZOQSUK3QYIPA3P5O/action/storage_attestation","attest_author":"https://pith.science/pith/MHZTMQK2ZMZOQSUK3QYIPA3P5O/action/author_attestation","sign_citation":"https://pith.science/pith/MHZTMQK2ZMZOQSUK3QYIPA3P5O/action/citation_signature","submit_replication":"https://pith.science/pith/MHZTMQK2ZMZOQSUK3QYIPA3P5O/action/replication_record"}},"created_at":"2026-05-18T03:24:18.469223+00:00","updated_at":"2026-05-18T03:24:18.469223+00:00"}