{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:SPAHDRWFVZF2Y2EZ34JSMEXO4Z","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":"bd53c01a87d51ef4fc7ff0193109e75e328342c53e11164eddc2425b32812510","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-07-11T19:59:15Z","title_canon_sha256":"ee9d364ebff4cf9ca51510af4176ca766985205b8e6f55651716648a8c0741d2"},"schema_version":"1.0","source":{"id":"2307.05771","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.05771","created_at":"2026-07-05T06:30:12Z"},{"alias_kind":"arxiv_version","alias_value":"2307.05771v1","created_at":"2026-07-05T06:30:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.05771","created_at":"2026-07-05T06:30:12Z"},{"alias_kind":"pith_short_12","alias_value":"SPAHDRWFVZF2","created_at":"2026-07-05T06:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"SPAHDRWFVZF2Y2EZ","created_at":"2026-07-05T06:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"SPAHDRWF","created_at":"2026-07-05T06:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:27e049a0b36d25e7de8faa395f45d042fff38f9cc1bdd6a3664b1eee4b0c803e","target":"graph","created_at":"2026-07-05T06:30:12Z","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/2307.05771/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Five 325 MHz high-power couplers will be integrated into the pre-production Single Spoke Resonator Type-II (ppSSR2) cryomodule for the PIP-II project at Fermilab. Couplers were procured by both Fermilab and IJCLAB for this effort. The design of the coupler is described, including design optimizations from the previous generation. This paper then describes the coupler life cycle, including design, manufacturing, and assembly, along with the lessons learned at each stage.","authors_text":"(2) IJCLab, D. Longuevergne (2), D. Passarelli (1), J. Helsper (1), N. Solyak (1) ((1) Fermilab, Orsay), S. Kazakov (1), S. Wallon (2)","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-07-11T19:59:15Z","title":"Design, Manufacturing, Assembly, and Lessons Learned of the Pre-production 325 MHz Couplers for the PIP-II Project at Fermilab"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.05771","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":"sha256:47f53769b6b2f514780c7ec31d93deb502638b8ba6bd16d627280ea253267257","target":"record","created_at":"2026-07-05T06:30:12Z","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":"bd53c01a87d51ef4fc7ff0193109e75e328342c53e11164eddc2425b32812510","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-07-11T19:59:15Z","title_canon_sha256":"ee9d364ebff4cf9ca51510af4176ca766985205b8e6f55651716648a8c0741d2"},"schema_version":"1.0","source":{"id":"2307.05771","kind":"arxiv","version":1}},"canonical_sha256":"93c071c6c5ae4bac6899df132612eee65e0d2de8ddf912178abfc22819f393a2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"93c071c6c5ae4bac6899df132612eee65e0d2de8ddf912178abfc22819f393a2","first_computed_at":"2026-07-05T06:30:12.226438Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:30:12.226438Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UzPJErNugCcf6+k4Xwj6fhPYY0xItA6lQkRQkkiLtPcLSJRlFF+cCmBrfYNkhfo+H5sigjuZIlT5Yfm2ciicDA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:30:12.226828Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.05771","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:47f53769b6b2f514780c7ec31d93deb502638b8ba6bd16d627280ea253267257","sha256:27e049a0b36d25e7de8faa395f45d042fff38f9cc1bdd6a3664b1eee4b0c803e"],"state_sha256":"e9f6817f2526d181a61bf7f19e2c37ba14d247be2d81d89b62a048b069c8d66d"}