{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:AOONS6LLZP3OTS7KSODKKFMZYP","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":"25912668271b86b21c8cad4b6210edae8cdbadd62d9ec5a00b1d3a4a76d52623","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2022-09-28T07:51:25Z","title_canon_sha256":"6b4dea21f6c00ba52eb33e04ae701b2aea4f44444d62bec513caf3315693a073"},"schema_version":"1.0","source":{"id":"2209.13896","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.13896","created_at":"2026-07-05T05:05:09Z"},{"alias_kind":"arxiv_version","alias_value":"2209.13896v2","created_at":"2026-07-05T05:05:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.13896","created_at":"2026-07-05T05:05:09Z"},{"alias_kind":"pith_short_12","alias_value":"AOONS6LLZP3O","created_at":"2026-07-05T05:05:09Z"},{"alias_kind":"pith_short_16","alias_value":"AOONS6LLZP3OTS7K","created_at":"2026-07-05T05:05:09Z"},{"alias_kind":"pith_short_8","alias_value":"AOONS6LL","created_at":"2026-07-05T05:05:09Z"}],"graph_snapshots":[{"event_id":"sha256:23617f0115a7ed3565bcb1759db338cb77d1b02f66b8dc312c3f7b9be5d056af","target":"graph","created_at":"2026-07-05T05:05:09Z","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/2209.13896/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"LCLS-II is an X-Ray Free Electron Laser (XFEL) commissioned in 2022, being the first Continuous Wave (CW) hard XFEL in the world to come into operation. To accelerate the electron beam to an energy of $\\SI{4}{\\giga \\eV}$, 280 TESLA type superconducting RF (SRF) cavities are used. A loaded quality factor ($Q_L$) of $4 \\times 10^7$ is used to drive the cavities at a power level of a few kilowatts. For this $Q_L$, the RF cavity bandwidth is 32 Hz. Therefore, keeping the cavity resonance frequency within such bandwidth is imperative to avoid a significant increase in the required drive power. In s","authors_text":"Alessandro Ratti, Andrea Bellandi, Andrew Benwell, Axel Brachmann, Dan Gonnella, Janice Nelson, Jorge Diaz Cruz, Julien Branlard (Deutsches Elektronen-Synchrotron DESY), Lisa Zacarias (SLAC), Ryan Douglas Porter, Sebastian Aderhold, Sonya Hoobler","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2022-09-28T07:51:25Z","title":"Narrow bandwidth active noise control for microphonics rejection in superconducting cavities at LCLS-II"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.13896","kind":"arxiv","version":2},"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":"sha256:25988a30f2205660357c216bdee981087c035b68dd7263a5d96e89255566a529","target":"record","created_at":"2026-07-05T05:05:09Z","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":"25912668271b86b21c8cad4b6210edae8cdbadd62d9ec5a00b1d3a4a76d52623","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2022-09-28T07:51:25Z","title_canon_sha256":"6b4dea21f6c00ba52eb33e04ae701b2aea4f44444d62bec513caf3315693a073"},"schema_version":"1.0","source":{"id":"2209.13896","kind":"arxiv","version":2}},"canonical_sha256":"039cd9796bcbf6e9cbea9386a51599c3ffa2063d55f9c4c6813458b3570ddf25","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"039cd9796bcbf6e9cbea9386a51599c3ffa2063d55f9c4c6813458b3570ddf25","first_computed_at":"2026-07-05T05:05:09.896912Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:05:09.896912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7JBflDnWqzRgIhvepY0yfm+CTeS/1pa4+yFtXPbGd2UeCHE/DKU5qDC+SA64i94/GAD+Wml6ZD1nDm/djGFYCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:05:09.897371Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.13896","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:25988a30f2205660357c216bdee981087c035b68dd7263a5d96e89255566a529","sha256:23617f0115a7ed3565bcb1759db338cb77d1b02f66b8dc312c3f7b9be5d056af"],"state_sha256":"6cd50d0d624db41d6f4a73fb95d5c600bcbff1f5d73ef29328b058a293b037d0"}