{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:SBNCUXFDBO5KZS6IOFD4U63PYV","short_pith_number":"pith:SBNCUXFD","canonical_record":{"source":{"id":"1805.08466","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2018-05-22T09:15:22Z","cross_cats_sorted":[],"title_canon_sha256":"feb29aa53f8f0687768e470769c8020a3d6dcdbbd311874ed716ab8c026b54c6","abstract_canon_sha256":"c06b75422009222b30e6bc1d82310125d4746f1c5975600006e690524b0611ce"},"schema_version":"1.0"},"canonical_sha256":"905a2a5ca30bbaaccbc87147ca7b6fc57c2faaf42d3d9e487762e53db0ab197e","source":{"kind":"arxiv","id":"1805.08466","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"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:SBNCUXFDBO5KZS6IOFD4U63PYV","target":"record","payload":{"canonical_record":{"source":{"id":"1805.08466","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2018-05-22T09:15:22Z","cross_cats_sorted":[],"title_canon_sha256":"feb29aa53f8f0687768e470769c8020a3d6dcdbbd311874ed716ab8c026b54c6","abstract_canon_sha256":"c06b75422009222b30e6bc1d82310125d4746f1c5975600006e690524b0611ce"},"schema_version":"1.0"},"canonical_sha256":"905a2a5ca30bbaaccbc87147ca7b6fc57c2faaf42d3d9e487762e53db0ab197e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:08:52.254717Z","signature_b64":"upLInLF7oSl5LsY06bp5NzH6Waq89YXSvgHvjeKh5FBkF5/41GtlqL37lOpcgByK+GhmsfapfuZuW8reQffODg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"905a2a5ca30bbaaccbc87147ca7b6fc57c2faaf42d3d9e487762e53db0ab197e","last_reissued_at":"2026-07-05T00:08:52.254308Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:08:52.254308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.08466","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:08:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eE0eQvMUAASflrX4KIzUFJN6gq1ME2LiuY07Qqh9YlCbYTHVXEs2jZcUcV+VRCxgX/O1HQgjF1PNUz+YsAaqCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T07:33:02.820586Z"},"content_sha256":"8efb3544f7fbd7760e93cdb13b92d97fdfc981083ce4a5188293de44f4839b9c","schema_version":"1.0","event_id":"sha256:8efb3544f7fbd7760e93cdb13b92d97fdfc981083ce4a5188293de44f4839b9c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:SBNCUXFDBO5KZS6IOFD4U63PYV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Study of Collective Effects in the FCC-ee Collider","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"Bruno Spataro, Eleonora Belli, Giovanni Castorina, Giovanni Rumolo, Mauro Migliorati, Mikhail Zobov, Serena Persichelli","submitted_at":"2018-05-22T09:15:22Z","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"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.08466","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1805.08466/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:08:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JtJ83Tbu0RynLDeBM9lBkhoLela7vKSGiwWQuQXCJj3OjW7pO+61BkuKueuhMA1uf6U2gR0b/ahkfkctr2QaBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T07:33:02.821306Z"},"content_sha256":"81b7af515c803e91c8a47ff6b188dcc03ac5b17f05a282bc6aa7f6123766e1ec","schema_version":"1.0","event_id":"sha256:81b7af515c803e91c8a47ff6b188dcc03ac5b17f05a282bc6aa7f6123766e1ec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SBNCUXFDBO5KZS6IOFD4U63PYV/bundle.json","state_url":"https://pith.science/pith/SBNCUXFDBO5KZS6IOFD4U63PYV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SBNCUXFDBO5KZS6IOFD4U63PYV/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-07T07:33:02Z","links":{"resolver":"https://pith.science/pith/SBNCUXFDBO5KZS6IOFD4U63PYV","bundle":"https://pith.science/pith/SBNCUXFDBO5KZS6IOFD4U63PYV/bundle.json","state":"https://pith.science/pith/SBNCUXFDBO5KZS6IOFD4U63PYV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SBNCUXFDBO5KZS6IOFD4U63PYV/bundle.json"},"state":{"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"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"azm8o5iH4a2fNiR0gUGgmI2IhAQc7Dp6HnZcJQnwtqF5SYCZwY+MJK4+HcH2vRVoWi7Gk5VaeidJ0EFn2GhfBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T07:33:02.829488Z","bundle_sha256":"5152c1a7472357a0aa441fdcfefe33c2ed4e3a757bb6bf3ba645af6a77730d86"}}