{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:FG4JJKQC7ADR46YQ6O3GZCIFVQ","short_pith_number":"pith:FG4JJKQC","canonical_record":{"source":{"id":"1405.0330","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-05-02T01:08:46Z","cross_cats_sorted":[],"title_canon_sha256":"744cc92e2bfe3c49104813ea4a25282ffb20600c51f5d96832863ffb57c824af","abstract_canon_sha256":"efe8e5f43c158f538af7ac1aaabd6279d98972751af4ced98d933f0307b0af11"},"schema_version":"1.0"},"canonical_sha256":"29b894aa02f8071e7b10f3b66c8905ac338da62b5b71a74ba6d03db40a6ad2d1","source":{"kind":"arxiv","id":"1405.0330","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.0330","created_at":"2026-05-18T02:52:48Z"},{"alias_kind":"arxiv_version","alias_value":"1405.0330v1","created_at":"2026-05-18T02:52:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.0330","created_at":"2026-05-18T02:52:48Z"},{"alias_kind":"pith_short_12","alias_value":"FG4JJKQC7ADR","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FG4JJKQC7ADR46YQ","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FG4JJKQC","created_at":"2026-05-18T12:28:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:FG4JJKQC7ADR46YQ6O3GZCIFVQ","target":"record","payload":{"canonical_record":{"source":{"id":"1405.0330","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-05-02T01:08:46Z","cross_cats_sorted":[],"title_canon_sha256":"744cc92e2bfe3c49104813ea4a25282ffb20600c51f5d96832863ffb57c824af","abstract_canon_sha256":"efe8e5f43c158f538af7ac1aaabd6279d98972751af4ced98d933f0307b0af11"},"schema_version":"1.0"},"canonical_sha256":"29b894aa02f8071e7b10f3b66c8905ac338da62b5b71a74ba6d03db40a6ad2d1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:52:48.189693Z","signature_b64":"LE0ursn5oduuE1DvIV5ShYU2n4elVBmJRioI2NfXUxrE+JmpYOHHcp99PqwQuiSaw9k4h98Bd2CpETW+j9dgBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29b894aa02f8071e7b10f3b66c8905ac338da62b5b71a74ba6d03db40a6ad2d1","last_reissued_at":"2026-05-18T02:52:48.189144Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:52:48.189144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1405.0330","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":"2026-05-18T02:52:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NWa9tOhb5+zQsNdr3ciKyol3GNqTMaTVR0wku3tjOHDmNS2jpPHBiQjUBohFKTUK/rQtqgeqJe3hOGHJ+KTXBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T10:21:32.035232Z"},"content_sha256":"d59bb5ace535502a54733a2988962893a8abb7136e9ba66cd2704f5111ed317c","schema_version":"1.0","event_id":"sha256:d59bb5ace535502a54733a2988962893a8abb7136e9ba66cd2704f5111ed317c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:FG4JJKQC7ADR46YQ6O3GZCIFVQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Roughness Tolerance Studies for the Undulator Beam Pipe Chamber of LCLS-II","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"G. Stupakov, K. Bane","submitted_at":"2014-05-02T01:08:46Z","abstract_excerpt":"We investigate the effect of wall roughness on the wakefield-induced energy variation in the undulator beam pipe of LCLS-II. We find that a wall roughness equivalent to an rms surface slope of 30 mr increases the total induced energy variation within the bunch (due to the resistive wall wake) by a modest 20%."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.0330","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":""},"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":"2026-05-18T02:52:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GMPyn26dBXdplrIZjVSOtKhRu7Si1w/nQ1Wvm9JS8mLJqwpaI4qr2fWk7RW4g6B5p/ssEofAgJQxcatz2cAmCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T10:21:32.035581Z"},"content_sha256":"eba9fb2692fd1b365b25b1dd43df925369eee94eff0af280ef2cf7257a4f7e38","schema_version":"1.0","event_id":"sha256:eba9fb2692fd1b365b25b1dd43df925369eee94eff0af280ef2cf7257a4f7e38"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FG4JJKQC7ADR46YQ6O3GZCIFVQ/bundle.json","state_url":"https://pith.science/pith/FG4JJKQC7ADR46YQ6O3GZCIFVQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FG4JJKQC7ADR46YQ6O3GZCIFVQ/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":"2026-06-07T10:21:32Z","links":{"resolver":"https://pith.science/pith/FG4JJKQC7ADR46YQ6O3GZCIFVQ","bundle":"https://pith.science/pith/FG4JJKQC7ADR46YQ6O3GZCIFVQ/bundle.json","state":"https://pith.science/pith/FG4JJKQC7ADR46YQ6O3GZCIFVQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FG4JJKQC7ADR46YQ6O3GZCIFVQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:FG4JJKQC7ADR46YQ6O3GZCIFVQ","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":"efe8e5f43c158f538af7ac1aaabd6279d98972751af4ced98d933f0307b0af11","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-05-02T01:08:46Z","title_canon_sha256":"744cc92e2bfe3c49104813ea4a25282ffb20600c51f5d96832863ffb57c824af"},"schema_version":"1.0","source":{"id":"1405.0330","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.0330","created_at":"2026-05-18T02:52:48Z"},{"alias_kind":"arxiv_version","alias_value":"1405.0330v1","created_at":"2026-05-18T02:52:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.0330","created_at":"2026-05-18T02:52:48Z"},{"alias_kind":"pith_short_12","alias_value":"FG4JJKQC7ADR","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FG4JJKQC7ADR46YQ","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FG4JJKQC","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:eba9fb2692fd1b365b25b1dd43df925369eee94eff0af280ef2cf7257a4f7e38","target":"graph","created_at":"2026-05-18T02:52:48Z","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"},"paper":{"abstract_excerpt":"We investigate the effect of wall roughness on the wakefield-induced energy variation in the undulator beam pipe of LCLS-II. We find that a wall roughness equivalent to an rms surface slope of 30 mr increases the total induced energy variation within the bunch (due to the resistive wall wake) by a modest 20%.","authors_text":"G. Stupakov, K. Bane","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-05-02T01:08:46Z","title":"Roughness Tolerance Studies for the Undulator Beam Pipe Chamber of LCLS-II"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.0330","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:d59bb5ace535502a54733a2988962893a8abb7136e9ba66cd2704f5111ed317c","target":"record","created_at":"2026-05-18T02:52:48Z","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":"efe8e5f43c158f538af7ac1aaabd6279d98972751af4ced98d933f0307b0af11","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-05-02T01:08:46Z","title_canon_sha256":"744cc92e2bfe3c49104813ea4a25282ffb20600c51f5d96832863ffb57c824af"},"schema_version":"1.0","source":{"id":"1405.0330","kind":"arxiv","version":1}},"canonical_sha256":"29b894aa02f8071e7b10f3b66c8905ac338da62b5b71a74ba6d03db40a6ad2d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29b894aa02f8071e7b10f3b66c8905ac338da62b5b71a74ba6d03db40a6ad2d1","first_computed_at":"2026-05-18T02:52:48.189144Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:52:48.189144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LE0ursn5oduuE1DvIV5ShYU2n4elVBmJRioI2NfXUxrE+JmpYOHHcp99PqwQuiSaw9k4h98Bd2CpETW+j9dgBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:52:48.189693Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.0330","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d59bb5ace535502a54733a2988962893a8abb7136e9ba66cd2704f5111ed317c","sha256:eba9fb2692fd1b365b25b1dd43df925369eee94eff0af280ef2cf7257a4f7e38"],"state_sha256":"7c860f1e9d757749dcb1d6cbbbe84591dd971eb7183dd1df323df1eca8e774f6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UAZGHnwP/N3dtm3NCHvkhvBXB0cg6WXeFbWw9E7aQPCr9SlrDvvJaxwa1SOOEv6Pkixn0aB0dVRhLGGhiagABw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T10:21:32.037800Z","bundle_sha256":"0cff77d212e885eef6fabbb666e2749e7a8eb0704abfb60987f7b8924ec06f26"}}