{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:USNCFXOJCOG4V7TMESEWRREVNF","short_pith_number":"pith:USNCFXOJ","schema_version":"1.0","canonical_sha256":"a49a22ddc9138dcafe6c248968c495694264e289b4678f8b201e37b3f60ac206","source":{"kind":"arxiv","id":"1612.06925","version":2},"attestation_state":"computed","paper":{"title":"Optimizing the Drude-Lorentz model for material permittivity - method, program, and examples for gold, silver, and copper","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"E.A. Muljarov, H.S. Sehmi, W. Langbein","submitted_at":"2016-12-20T23:54:38Z","abstract_excerpt":"Approximating the frequency dispersion of the permittivity of materials with simple analytical functions is of fundamental importance for understanding and modeling the optical response of materials and resulting structures. In the generalized Drude-Lorentz model, the permittivity is described in the complex frequency plane by a number of simple poles having complex weights, which is a physically relevant and mathematically simple approach: By construction, it respects causality represents physical resonances of the material, and can be implemented easily in numerical simulations. We report he"},"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":"1612.06925","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-12-20T23:54:38Z","cross_cats_sorted":[],"title_canon_sha256":"a853373e8f2621812d08eedb951213cec9106d4268343a073568836aa370df6e","abstract_canon_sha256":"d363b20ff20e09059089a1b819d22f9ad4d29018d7f6a885777107d9407d8a2d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:04.148616Z","signature_b64":"w9YrC09wcQbvX7JUBD+gPVIPRwBPe5zLVQF98/8wPvQqrLFvUunPbAnTqFmp40VaMrTblha88EhCmoaKw+CgCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a49a22ddc9138dcafe6c248968c495694264e289b4678f8b201e37b3f60ac206","last_reissued_at":"2026-05-18T00:46:04.147911Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:04.147911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Optimizing the Drude-Lorentz model for material permittivity - method, program, and examples for gold, silver, and copper","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"E.A. Muljarov, H.S. Sehmi, W. Langbein","submitted_at":"2016-12-20T23:54:38Z","abstract_excerpt":"Approximating the frequency dispersion of the permittivity of materials with simple analytical functions is of fundamental importance for understanding and modeling the optical response of materials and resulting structures. In the generalized Drude-Lorentz model, the permittivity is described in the complex frequency plane by a number of simple poles having complex weights, which is a physically relevant and mathematically simple approach: By construction, it respects causality represents physical resonances of the material, and can be implemented easily in numerical simulations. We report he"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.06925","kind":"arxiv","version":2},"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":"1612.06925","created_at":"2026-05-18T00:46:04.148026+00:00"},{"alias_kind":"arxiv_version","alias_value":"1612.06925v2","created_at":"2026-05-18T00:46:04.148026+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.06925","created_at":"2026-05-18T00:46:04.148026+00:00"},{"alias_kind":"pith_short_12","alias_value":"USNCFXOJCOG4","created_at":"2026-05-18T12:30:46.583412+00:00"},{"alias_kind":"pith_short_16","alias_value":"USNCFXOJCOG4V7TM","created_at":"2026-05-18T12:30:46.583412+00:00"},{"alias_kind":"pith_short_8","alias_value":"USNCFXOJ","created_at":"2026-05-18T12:30:46.583412+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/USNCFXOJCOG4V7TMESEWRREVNF","json":"https://pith.science/pith/USNCFXOJCOG4V7TMESEWRREVNF.json","graph_json":"https://pith.science/api/pith-number/USNCFXOJCOG4V7TMESEWRREVNF/graph.json","events_json":"https://pith.science/api/pith-number/USNCFXOJCOG4V7TMESEWRREVNF/events.json","paper":"https://pith.science/paper/USNCFXOJ"},"agent_actions":{"view_html":"https://pith.science/pith/USNCFXOJCOG4V7TMESEWRREVNF","download_json":"https://pith.science/pith/USNCFXOJCOG4V7TMESEWRREVNF.json","view_paper":"https://pith.science/paper/USNCFXOJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1612.06925&json=true","fetch_graph":"https://pith.science/api/pith-number/USNCFXOJCOG4V7TMESEWRREVNF/graph.json","fetch_events":"https://pith.science/api/pith-number/USNCFXOJCOG4V7TMESEWRREVNF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/USNCFXOJCOG4V7TMESEWRREVNF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/USNCFXOJCOG4V7TMESEWRREVNF/action/storage_attestation","attest_author":"https://pith.science/pith/USNCFXOJCOG4V7TMESEWRREVNF/action/author_attestation","sign_citation":"https://pith.science/pith/USNCFXOJCOG4V7TMESEWRREVNF/action/citation_signature","submit_replication":"https://pith.science/pith/USNCFXOJCOG4V7TMESEWRREVNF/action/replication_record"}},"created_at":"2026-05-18T00:46:04.148026+00:00","updated_at":"2026-05-18T00:46:04.148026+00:00"}