{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:JOOXCRALQS42WW3NHMKEJT3MGM","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":"87eac215d4db6ff085a86d46362556125c71b168efcf99f2b1db408dbd726bfe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-06-27T22:27:03Z","title_canon_sha256":"a7018fd01e50115e8269ff11d47c948d3632569f84f7806798053420cdaf9d68"},"schema_version":"1.0","source":{"id":"1406.7328","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.7328","created_at":"2026-05-18T01:42:45Z"},{"alias_kind":"arxiv_version","alias_value":"1406.7328v1","created_at":"2026-05-18T01:42:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.7328","created_at":"2026-05-18T01:42:45Z"},{"alias_kind":"pith_short_12","alias_value":"JOOXCRALQS42","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"JOOXCRALQS42WW3N","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"JOOXCRAL","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:6cda8f7cad5d9941391ef1dcead68e59357d90aac30f9d2edb670336c90d1e6b","target":"graph","created_at":"2026-05-18T01:42:45Z","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":"Broadband electromagnetic transparency phenomenon is realized with a well-designed graded-permittivity sphere, which has an extremely low scattering cross section over a wide frequency range, based on the generalized Mie scattering theory and numerical simulation in full-wave condition. The dynamic polarization cancellation is revealed by studying the variation of the polarization with respect to the frequency. Furthermore, a properly-designed multi-shell sphere is also proposed and examined in order to reduce the rigorous conditions for realizing the broadband transparency in experiments.","authors_text":"Jie Gao, Lei Sun, Xiaodong Yang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-06-27T22:27:03Z","title":"Realizing broadband electromagnetic transparency with a graded-permittivity sphere"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.7328","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:fa94b113c94fc45960514d62bd6dbb2e60d8dd2d844e07bbd8ec80bb092a1808","target":"record","created_at":"2026-05-18T01:42:45Z","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":"87eac215d4db6ff085a86d46362556125c71b168efcf99f2b1db408dbd726bfe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-06-27T22:27:03Z","title_canon_sha256":"a7018fd01e50115e8269ff11d47c948d3632569f84f7806798053420cdaf9d68"},"schema_version":"1.0","source":{"id":"1406.7328","kind":"arxiv","version":1}},"canonical_sha256":"4b9d71440b84b9ab5b6d3b1444cf6c330772a84a9001cf7105adc6c0529c2464","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b9d71440b84b9ab5b6d3b1444cf6c330772a84a9001cf7105adc6c0529c2464","first_computed_at":"2026-05-18T01:42:45.599063Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:45.599063Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+7o8qLdOCvd7TMgm8c+tRYccyJ6vJ+32ekbfJ2vvwVPgYG8nKQA5CrAhehwEUeebmDFNmhjIReInsaIe2pj8DA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:45.599812Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.7328","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fa94b113c94fc45960514d62bd6dbb2e60d8dd2d844e07bbd8ec80bb092a1808","sha256:6cda8f7cad5d9941391ef1dcead68e59357d90aac30f9d2edb670336c90d1e6b"],"state_sha256":"8dc6707313b6ca8cb36fee5b546e795e3b373fba9b303e89c7e3104b5516788a"}