{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:QRD6RRHYNDW3JR4RGR6HILCZGX","short_pith_number":"pith:QRD6RRHY","canonical_record":{"source":{"id":"2504.19825","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-04-28T14:25:23Z","cross_cats_sorted":[],"title_canon_sha256":"cba474e14eb993b848f197cac7294479d070a0c0de43bd3c6846911877e55c5e","abstract_canon_sha256":"fbcc7ffe324ddc3376654a0a420f6e43f36de94c8d63321d9ebe20653970671b"},"schema_version":"1.0"},"canonical_sha256":"8447e8c4f868edb4c791347c742c5935eed97e480de96c610cf7dd36c5a6a9af","source":{"kind":"arxiv","id":"2504.19825","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.19825","created_at":"2026-07-05T10:55:03Z"},{"alias_kind":"arxiv_version","alias_value":"2504.19825v1","created_at":"2026-07-05T10:55:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.19825","created_at":"2026-07-05T10:55:03Z"},{"alias_kind":"pith_short_12","alias_value":"QRD6RRHYNDW3","created_at":"2026-07-05T10:55:03Z"},{"alias_kind":"pith_short_16","alias_value":"QRD6RRHYNDW3JR4R","created_at":"2026-07-05T10:55:03Z"},{"alias_kind":"pith_short_8","alias_value":"QRD6RRHY","created_at":"2026-07-05T10:55:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:QRD6RRHYNDW3JR4RGR6HILCZGX","target":"record","payload":{"canonical_record":{"source":{"id":"2504.19825","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-04-28T14:25:23Z","cross_cats_sorted":[],"title_canon_sha256":"cba474e14eb993b848f197cac7294479d070a0c0de43bd3c6846911877e55c5e","abstract_canon_sha256":"fbcc7ffe324ddc3376654a0a420f6e43f36de94c8d63321d9ebe20653970671b"},"schema_version":"1.0"},"canonical_sha256":"8447e8c4f868edb4c791347c742c5935eed97e480de96c610cf7dd36c5a6a9af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:55:03.890329Z","signature_b64":"6OCtNjV4kvNOKaefCqTbstky4bXOt20qOG9aw9H4heKbayc5MdEnuqBOxEO5pRRN6G+rPjfy6VU89U135kTmDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8447e8c4f868edb4c791347c742c5935eed97e480de96c610cf7dd36c5a6a9af","last_reissued_at":"2026-07-05T10:55:03.889725Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:55:03.889725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.19825","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:55:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uUm5cNCYbTN37WdF+NR5v9R96FUomS19IRR3OuPjzUFH2tHU0/MO0MMXA4tuDTJHubu+MEdqlJ8/UjNRs7vUBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T01:24:21.525979Z"},"content_sha256":"5b87840bd9c9f3840bd1fd873033c4d6b2b12f927861470252cbe62d4e6c9e70","schema_version":"1.0","event_id":"sha256:5b87840bd9c9f3840bd1fd873033c4d6b2b12f927861470252cbe62d4e6c9e70"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:QRD6RRHYNDW3JR4RGR6HILCZGX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detailed Design and Optimization of Ferro-Electric Tuners","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"Alick Macpherson, Ilan Ben-Zvi, Samuel Smith","submitted_at":"2025-04-28T14:25:23Z","abstract_excerpt":"A detailed, step-by-step design methodology of a Ferroelectric Fast Reactive Tuner (FE-FRT) capable of modulating Mega VAR reactive powers on a sub-microsecond time scale is given. Closed expressions of values for all the components of the tuner are detailed, and tuner performance optimization is addressed, resulting in a Figure of Merit measure of FE-FRT tuner performance and use case applicability over a wide range of RF frequencies and reactive power levels. This enables addressing feasibility and rapid assessment of design parameters given an FE-FRT tuning scenario defined by required tuni"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.19825","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2504.19825/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:55:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bqzXIdYjvgYHaVchums2nzyXYu2eJCQB5GvpKy93iebFarD8tPoA0gEEm4PWNRLsz2FP4Zq76HSICrJJsj1gBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T01:24:21.526482Z"},"content_sha256":"741a85096af41a7245ed4b40181d093247316bfc4dffeb38902a4d96e1a21ff6","schema_version":"1.0","event_id":"sha256:741a85096af41a7245ed4b40181d093247316bfc4dffeb38902a4d96e1a21ff6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QRD6RRHYNDW3JR4RGR6HILCZGX/bundle.json","state_url":"https://pith.science/pith/QRD6RRHYNDW3JR4RGR6HILCZGX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QRD6RRHYNDW3JR4RGR6HILCZGX/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-21T01:24:21Z","links":{"resolver":"https://pith.science/pith/QRD6RRHYNDW3JR4RGR6HILCZGX","bundle":"https://pith.science/pith/QRD6RRHYNDW3JR4RGR6HILCZGX/bundle.json","state":"https://pith.science/pith/QRD6RRHYNDW3JR4RGR6HILCZGX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QRD6RRHYNDW3JR4RGR6HILCZGX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:QRD6RRHYNDW3JR4RGR6HILCZGX","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":"fbcc7ffe324ddc3376654a0a420f6e43f36de94c8d63321d9ebe20653970671b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-04-28T14:25:23Z","title_canon_sha256":"cba474e14eb993b848f197cac7294479d070a0c0de43bd3c6846911877e55c5e"},"schema_version":"1.0","source":{"id":"2504.19825","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.19825","created_at":"2026-07-05T10:55:03Z"},{"alias_kind":"arxiv_version","alias_value":"2504.19825v1","created_at":"2026-07-05T10:55:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.19825","created_at":"2026-07-05T10:55:03Z"},{"alias_kind":"pith_short_12","alias_value":"QRD6RRHYNDW3","created_at":"2026-07-05T10:55:03Z"},{"alias_kind":"pith_short_16","alias_value":"QRD6RRHYNDW3JR4R","created_at":"2026-07-05T10:55:03Z"},{"alias_kind":"pith_short_8","alias_value":"QRD6RRHY","created_at":"2026-07-05T10:55:03Z"}],"graph_snapshots":[{"event_id":"sha256:741a85096af41a7245ed4b40181d093247316bfc4dffeb38902a4d96e1a21ff6","target":"graph","created_at":"2026-07-05T10:55:03Z","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/2504.19825/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A detailed, step-by-step design methodology of a Ferroelectric Fast Reactive Tuner (FE-FRT) capable of modulating Mega VAR reactive powers on a sub-microsecond time scale is given. Closed expressions of values for all the components of the tuner are detailed, and tuner performance optimization is addressed, resulting in a Figure of Merit measure of FE-FRT tuner performance and use case applicability over a wide range of RF frequencies and reactive power levels. This enables addressing feasibility and rapid assessment of design parameters given an FE-FRT tuning scenario defined by required tuni","authors_text":"Alick Macpherson, Ilan Ben-Zvi, Samuel Smith","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-04-28T14:25:23Z","title":"Detailed Design and Optimization of Ferro-Electric Tuners"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.19825","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":"sha256:5b87840bd9c9f3840bd1fd873033c4d6b2b12f927861470252cbe62d4e6c9e70","target":"record","created_at":"2026-07-05T10:55:03Z","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":"fbcc7ffe324ddc3376654a0a420f6e43f36de94c8d63321d9ebe20653970671b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-04-28T14:25:23Z","title_canon_sha256":"cba474e14eb993b848f197cac7294479d070a0c0de43bd3c6846911877e55c5e"},"schema_version":"1.0","source":{"id":"2504.19825","kind":"arxiv","version":1}},"canonical_sha256":"8447e8c4f868edb4c791347c742c5935eed97e480de96c610cf7dd36c5a6a9af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8447e8c4f868edb4c791347c742c5935eed97e480de96c610cf7dd36c5a6a9af","first_computed_at":"2026-07-05T10:55:03.889725Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:55:03.889725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6OCtNjV4kvNOKaefCqTbstky4bXOt20qOG9aw9H4heKbayc5MdEnuqBOxEO5pRRN6G+rPjfy6VU89U135kTmDw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:55:03.890329Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.19825","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5b87840bd9c9f3840bd1fd873033c4d6b2b12f927861470252cbe62d4e6c9e70","sha256:741a85096af41a7245ed4b40181d093247316bfc4dffeb38902a4d96e1a21ff6"],"state_sha256":"cfe6d3ff6c1015854d7ed8e30b26aafe115e34debae0925c921b1548f4103852"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uXrKqhWjAZROWkGtwSdusKvCboL2E+beianYYRD+Iw5rkrjL5vYyXmHhgc5K2JahRpWWDw5Q4Vbkrnf3INWABw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T01:24:21.532021Z","bundle_sha256":"926a03e47022ce5b5419494df9d1c82acee397575db639547536148097dec238"}}