{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:V6MCAIEU6G6HWJ4QAE7O7RBEQV","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":"c64534a64c0131b4b3893354a3293a625ef237766bfe9ac75740401018b1a5d8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2022-05-26T13:44:04Z","title_canon_sha256":"73e6315d25b6b1f2a8f84310446b04958ef7a70d23474d7e28ae7fba818d06be"},"schema_version":"1.0","source":{"id":"2205.13365","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.13365","created_at":"2026-07-05T05:34:15Z"},{"alias_kind":"arxiv_version","alias_value":"2205.13365v3","created_at":"2026-07-05T05:34:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.13365","created_at":"2026-07-05T05:34:15Z"},{"alias_kind":"pith_short_12","alias_value":"V6MCAIEU6G6H","created_at":"2026-07-05T05:34:15Z"},{"alias_kind":"pith_short_16","alias_value":"V6MCAIEU6G6HWJ4Q","created_at":"2026-07-05T05:34:15Z"},{"alias_kind":"pith_short_8","alias_value":"V6MCAIEU","created_at":"2026-07-05T05:34:15Z"}],"graph_snapshots":[{"event_id":"sha256:e0c9b58e9ea5eaa7ef50dfc978fff312e29e6e346b5c295de5c2beadc1bd4e3b","target":"graph","created_at":"2026-07-05T05:34:15Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2205.13365/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The inverse-scattering problem of an inhomogeneous material has been of interest for many years, and was generally addressed with various optimization techniques. In this paper, we suggest an optimization-free method for solving the inverse-scattering problem of a one-dimensional inhomogeneous medium and use this to demonstrate the design of desired reflection frequency response. In addition, we derive the governing equation of an analog problem - a time-dependent homogeneous medium and use the same technique to design a temporal switching profile for the design of frequency response in k-spac","authors_text":"Ohad Silbiger, Yakir Hadad","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2022-05-26T13:44:04Z","title":"Optimization-free Approach for Analog Filter Design through Spatial and Temporal Soft Switching of the Dielectric Constant"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.13365","kind":"arxiv","version":3},"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:febb14df9f24bdabbf933ec69f97fd282378401d4c9b250d343681e019157ed4","target":"record","created_at":"2026-07-05T05:34:15Z","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":"c64534a64c0131b4b3893354a3293a625ef237766bfe9ac75740401018b1a5d8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2022-05-26T13:44:04Z","title_canon_sha256":"73e6315d25b6b1f2a8f84310446b04958ef7a70d23474d7e28ae7fba818d06be"},"schema_version":"1.0","source":{"id":"2205.13365","kind":"arxiv","version":3}},"canonical_sha256":"af98202094f1bc7b2790013eefc4248547f6b8139cc85d2ffe758522ad2d530d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af98202094f1bc7b2790013eefc4248547f6b8139cc85d2ffe758522ad2d530d","first_computed_at":"2026-07-05T05:34:15.294930Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:34:15.294930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pum62Zk7r1EsEnyYLsL5Rqi0miGUvNc6ERb3iXl0JbJsaJ1nec+y3FoKyI638hgc1iLiv4UtKdTiSewMTOH4CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:34:15.295469Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.13365","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:febb14df9f24bdabbf933ec69f97fd282378401d4c9b250d343681e019157ed4","sha256:e0c9b58e9ea5eaa7ef50dfc978fff312e29e6e346b5c295de5c2beadc1bd4e3b"],"state_sha256":"e2280431b0f7ca5e9330bba57f553d9b9094af403a50985f6b3059b8d78e18d6"}