{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:IUKM3XCGVMUOGLXVN7PBVISEU3","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":"91ac96ae4ba004470e52a6431427b405822ef6e750b14cf5391a3093d2dd7b40","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-05-28T21:17:39Z","title_canon_sha256":"ae3b2161eefb8d5da8cbda0fc881e7d1606a4ce9ce2a8380b74a791d668a8cf6"},"schema_version":"1.0","source":{"id":"2505.22876","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.22876","created_at":"2026-07-05T11:11:51Z"},{"alias_kind":"arxiv_version","alias_value":"2505.22876v1","created_at":"2026-07-05T11:11:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.22876","created_at":"2026-07-05T11:11:51Z"},{"alias_kind":"pith_short_12","alias_value":"IUKM3XCGVMUO","created_at":"2026-07-05T11:11:51Z"},{"alias_kind":"pith_short_16","alias_value":"IUKM3XCGVMUOGLXV","created_at":"2026-07-05T11:11:51Z"},{"alias_kind":"pith_short_8","alias_value":"IUKM3XCG","created_at":"2026-07-05T11:11:51Z"}],"graph_snapshots":[{"event_id":"sha256:57021319cfdb8461237926773768dc02115dc407eaf45c781a3ed6be169aab40","target":"graph","created_at":"2026-07-05T11:11:51Z","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/2505.22876/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The low-level RF (LLRF) systems for S-band linear accelerating structures are typically implemented with heterodyne base architectures. We have developed and characterized the next generation LLRF (NG-LLRF) based on the RF system-on-chip (RFSoC) for C-band accelerating structures, and the platform delivered the pulse-to-pulse fluctuation levels considerably better than the requirement of the targeted applications. The NG-LLRF system uses the direct RF sampling technique of the RFSoC, which significantly simplified the architecture compared to the conventional LLRF. We have extended the frequen","authors_text":"Ankur Dhar, Chao Liu, Emilio A. Nanni, Emma Snively, Mohamed Othman, Ryan Herbst","cross_cats":["astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-05-28T21:17:39Z","title":"Next Generation LLRF Control and Monitoring System for S-Band Linear Accelerators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.22876","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:f1997b6fb993c6c9746e366e7c05a224fbbbe13cd1bd0c58e849d25f21464263","target":"record","created_at":"2026-07-05T11:11:51Z","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":"91ac96ae4ba004470e52a6431427b405822ef6e750b14cf5391a3093d2dd7b40","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-05-28T21:17:39Z","title_canon_sha256":"ae3b2161eefb8d5da8cbda0fc881e7d1606a4ce9ce2a8380b74a791d668a8cf6"},"schema_version":"1.0","source":{"id":"2505.22876","kind":"arxiv","version":1}},"canonical_sha256":"4514cddc46ab28e32ef56fde1aa244a6d4e7afd6bc2fbc3a64ad49f7337c6ad2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4514cddc46ab28e32ef56fde1aa244a6d4e7afd6bc2fbc3a64ad49f7337c6ad2","first_computed_at":"2026-07-05T11:11:51.336727Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:11:51.336727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hcot/wV3GcThXuqDmEnrmC7mF31oIloknE3EfLu1uZJeoXEZf0YCpr96OZZKkTeOZeXJ9M01MSukeoVDlXpOCA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:11:51.337265Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.22876","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f1997b6fb993c6c9746e366e7c05a224fbbbe13cd1bd0c58e849d25f21464263","sha256:57021319cfdb8461237926773768dc02115dc407eaf45c781a3ed6be169aab40"],"state_sha256":"150fdb1aa770e38d22d6b0a91ae905b584d497463250c2d85fe9fe6b6d0028e1"}