{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:E2VVT72RQBLGIJ54JAT5OR5AXN","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":"282a0bde585d2f17675ebf5d27d2b78e1ae098ddec8525b821986fe7ae6aaedc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2016-04-13T18:24:24Z","title_canon_sha256":"8084c73ec95cbde405959bee399ed49b86630b9bdbcd04198f7824d80ad6c6b4"},"schema_version":"1.0","source":{"id":"1604.03902","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.03902","created_at":"2026-05-18T01:17:10Z"},{"alias_kind":"arxiv_version","alias_value":"1604.03902v1","created_at":"2026-05-18T01:17:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.03902","created_at":"2026-05-18T01:17:10Z"},{"alias_kind":"pith_short_12","alias_value":"E2VVT72RQBLG","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"E2VVT72RQBLGIJ54","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"E2VVT72R","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:2e94ebd9705ca8eedcb19cd50ffb6e48899e5f829fc753c7b61322ee6f6b4d48","target":"graph","created_at":"2026-05-18T01:17:10Z","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 present the results of multi-objective genetic algorithm optimizations of a potential single shot ultra fast electron diffraction beamline utilizing a 100 MV/m 1.6 cell normal conducting rf (NCRF) gun, as well as a 9 cell 2pi/3 bunching cavity placed between two solenoids. Optimizations of the transverse projected emittance as a function of bunch charge are presented and discussed in terms of the scaling laws derived in the charge saturation limit. Additionally, optimization of the transverse coherence length as a function of final rms bunch length at the sample location have been performed","authors_text":"A. Bartnik, C. Gulliford, I. Bazarov, J. Maxson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2016-04-13T18:24:24Z","title":"Multi-objective Optimizations of a Normal Conducting RF Gun Based Ultra Fast Electron Diffraction Beamline"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.03902","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:ad6f5b7670a8c00e9ddd6c5036a558e59061595b975a6424ebff56a9b5b6405d","target":"record","created_at":"2026-05-18T01:17:10Z","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":"282a0bde585d2f17675ebf5d27d2b78e1ae098ddec8525b821986fe7ae6aaedc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2016-04-13T18:24:24Z","title_canon_sha256":"8084c73ec95cbde405959bee399ed49b86630b9bdbcd04198f7824d80ad6c6b4"},"schema_version":"1.0","source":{"id":"1604.03902","kind":"arxiv","version":1}},"canonical_sha256":"26ab59ff5180566427bc4827d747a0bb51cee56ec195e0fdab9270e7bdbfef55","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"26ab59ff5180566427bc4827d747a0bb51cee56ec195e0fdab9270e7bdbfef55","first_computed_at":"2026-05-18T01:17:10.696464Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:17:10.696464Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n0KtpbMWis576VwhqF02E8ipdBL+KyRL1hD7/o17NysK2EtY2X10xzhtazf+GTVSpcD9oQD2R8T6nyF+Gm+wDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:17:10.697209Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.03902","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad6f5b7670a8c00e9ddd6c5036a558e59061595b975a6424ebff56a9b5b6405d","sha256:2e94ebd9705ca8eedcb19cd50ffb6e48899e5f829fc753c7b61322ee6f6b4d48"],"state_sha256":"0bdba73521983646a35d2856e0d715a5ce75b3d04ebd65629afca769b9d3b367"}