{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SBNCUXFDBO5KZS6IOFD4U63PYV","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":"c06b75422009222b30e6bc1d82310125d4746f1c5975600006e690524b0611ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2018-05-22T09:15:22Z","title_canon_sha256":"feb29aa53f8f0687768e470769c8020a3d6dcdbbd311874ed716ab8c026b54c6"},"schema_version":"1.0","source":{"id":"1805.08466","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.08466","created_at":"2026-07-05T00:08:52Z"},{"alias_kind":"arxiv_version","alias_value":"1805.08466v1","created_at":"2026-07-05T00:08:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.08466","created_at":"2026-07-05T00:08:52Z"},{"alias_kind":"pith_short_12","alias_value":"SBNCUXFDBO5K","created_at":"2026-07-05T00:08:52Z"},{"alias_kind":"pith_short_16","alias_value":"SBNCUXFDBO5KZS6I","created_at":"2026-07-05T00:08:52Z"},{"alias_kind":"pith_short_8","alias_value":"SBNCUXFD","created_at":"2026-07-05T00:08:52Z"}],"graph_snapshots":[{"event_id":"sha256:81b7af515c803e91c8a47ff6b188dcc03ac5b17f05a282bc6aa7f6123766e1ec","target":"graph","created_at":"2026-07-05T00:08:52Z","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/1805.08466/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Future Circular Collider (FCC) study aims at designing different options of a post-LHC collider. The high luminosity electron-positron collider FCC-ee based on the crab waist concept is considered as an intermediate step on the way towards FCC-hh, a 100 TeV hadron collider using the same tunnel of about 100 km. Due to a high intensity of circulating beams the impact of collective effects on FCC-ee performance has to be carefully analyzed. In this paper we evaluate beam coupling impedance of the FCC-ee vacuum chamber, estimate thresholds and rise times of eventual single- and multibunch bea","authors_text":"Bruno Spataro, Eleonora Belli, Giovanni Castorina, Giovanni Rumolo, Mauro Migliorati, Mikhail Zobov, Serena Persichelli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2018-05-22T09:15:22Z","title":"Study of Collective Effects in the FCC-ee Collider"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.08466","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":"sha256:8efb3544f7fbd7760e93cdb13b92d97fdfc981083ce4a5188293de44f4839b9c","target":"record","created_at":"2026-07-05T00:08:52Z","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":"c06b75422009222b30e6bc1d82310125d4746f1c5975600006e690524b0611ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2018-05-22T09:15:22Z","title_canon_sha256":"feb29aa53f8f0687768e470769c8020a3d6dcdbbd311874ed716ab8c026b54c6"},"schema_version":"1.0","source":{"id":"1805.08466","kind":"arxiv","version":1}},"canonical_sha256":"905a2a5ca30bbaaccbc87147ca7b6fc57c2faaf42d3d9e487762e53db0ab197e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"905a2a5ca30bbaaccbc87147ca7b6fc57c2faaf42d3d9e487762e53db0ab197e","first_computed_at":"2026-07-05T00:08:52.254308Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:08:52.254308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"upLInLF7oSl5LsY06bp5NzH6Waq89YXSvgHvjeKh5FBkF5/41GtlqL37lOpcgByK+GhmsfapfuZuW8reQffODg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:08:52.254717Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.08466","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8efb3544f7fbd7760e93cdb13b92d97fdfc981083ce4a5188293de44f4839b9c","sha256:81b7af515c803e91c8a47ff6b188dcc03ac5b17f05a282bc6aa7f6123766e1ec"],"state_sha256":"747b7558dada5e228edfd7c0aa08d20e502822955ebf05ee8be5455c8442a054"}