{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:FPYWFPJ6UZJKR7GYFIUXPRUATM","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":"80bc12e2bbea2f30cc023b4a4dba739a824a0bcdb00083485ed6c245cc5f76e8","cross_cats_sorted":["physics.acc-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2024-08-26T16:10:52Z","title_canon_sha256":"fe3e199475dd54bc7906ef032cc979ea16e8e657e1cd82fc22c6a0e01bd51479"},"schema_version":"1.0","source":{"id":"2408.14386","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.14386","created_at":"2026-07-05T09:19:11Z"},{"alias_kind":"arxiv_version","alias_value":"2408.14386v2","created_at":"2026-07-05T09:19:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.14386","created_at":"2026-07-05T09:19:11Z"},{"alias_kind":"pith_short_12","alias_value":"FPYWFPJ6UZJK","created_at":"2026-07-05T09:19:11Z"},{"alias_kind":"pith_short_16","alias_value":"FPYWFPJ6UZJKR7GY","created_at":"2026-07-05T09:19:11Z"},{"alias_kind":"pith_short_8","alias_value":"FPYWFPJ6","created_at":"2026-07-05T09:19:11Z"}],"graph_snapshots":[{"event_id":"sha256:3629abcf6dd30da6f1a39f8cdec7173546e2236f44a85d6160a8825d4a2da6f7","target":"graph","created_at":"2026-07-05T09:19:11Z","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/2408.14386/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"To assess the feasibility of in-situ plasma cleaning for copper cavities, a 13.56 MHz inductively coupled plasma platform with a built-in coil was developed at Tsinghua University. Experiments were conducted using this platform to optimize plasma discharge parameters and procedures specific to copper cavities. The results indicate that the \"Ar/O + Ar/H method\" significantly enhances the work function of the copper surface while reducing field enhancement effects induced by surface burrs. Consequently, this study confirms that in-situ plasma cleaning effectively mitigates field emission within ","authors_text":"Lianmin Zheng, Qianxu Xia, Yingchao Du","cross_cats":["physics.acc-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2024-08-26T16:10:52Z","title":"Experiment Research on Feasibility of In-Situ Plasma Cleaning in Normal-conducting Copper Cavities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.14386","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":"sha256:6a80bb97b92dc808dad5a511238cc608828bcba8dd502e72017e4111df60872e","target":"record","created_at":"2026-07-05T09:19:11Z","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":"80bc12e2bbea2f30cc023b4a4dba739a824a0bcdb00083485ed6c245cc5f76e8","cross_cats_sorted":["physics.acc-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2024-08-26T16:10:52Z","title_canon_sha256":"fe3e199475dd54bc7906ef032cc979ea16e8e657e1cd82fc22c6a0e01bd51479"},"schema_version":"1.0","source":{"id":"2408.14386","kind":"arxiv","version":2}},"canonical_sha256":"2bf162bd3ea652a8fcd82a2977c6809b3674bac2bb9fd0868921c2191d93f60d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2bf162bd3ea652a8fcd82a2977c6809b3674bac2bb9fd0868921c2191d93f60d","first_computed_at":"2026-07-05T09:19:11.905801Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:19:11.905801Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w5DiW6+uO1U37C6qOfAquMWpjUpFJVgpui9eDfo2H9PRT5+di5Iuv65ZcOZGsAO8WIvqDxN5hnqvPvrbGFBwCg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:19:11.906337Z","signed_message":"canonical_sha256_bytes"},"source_id":"2408.14386","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a80bb97b92dc808dad5a511238cc608828bcba8dd502e72017e4111df60872e","sha256:3629abcf6dd30da6f1a39f8cdec7173546e2236f44a85d6160a8825d4a2da6f7"],"state_sha256":"b67125ffd9cddbefb94bee30784d5cd24b5bc50dad65865b91f5e8afd4c3045f"}