{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:VXV437ROK6E3EBHNVBREQ5O42A","short_pith_number":"pith:VXV437RO","canonical_record":{"source":{"id":"1411.3614","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-11-13T16:58:20Z","cross_cats_sorted":[],"title_canon_sha256":"f761c9d616beadd8193cdccc1279477cec39471e24cddeac52dc730c3d6cc668","abstract_canon_sha256":"33d35c58b9c02162900b2a7a751925d0ac937df42f316aeebc0361d19391419f"},"schema_version":"1.0"},"canonical_sha256":"adebcdfe2e5789b204eda8624875dcd0104439e50d91c6b59b5076417c5b34df","source":{"kind":"arxiv","id":"1411.3614","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.3614","created_at":"2026-05-18T02:37:43Z"},{"alias_kind":"arxiv_version","alias_value":"1411.3614v1","created_at":"2026-05-18T02:37:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.3614","created_at":"2026-05-18T02:37:43Z"},{"alias_kind":"pith_short_12","alias_value":"VXV437ROK6E3","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"VXV437ROK6E3EBHN","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"VXV437RO","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:VXV437ROK6E3EBHNVBREQ5O42A","target":"record","payload":{"canonical_record":{"source":{"id":"1411.3614","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-11-13T16:58:20Z","cross_cats_sorted":[],"title_canon_sha256":"f761c9d616beadd8193cdccc1279477cec39471e24cddeac52dc730c3d6cc668","abstract_canon_sha256":"33d35c58b9c02162900b2a7a751925d0ac937df42f316aeebc0361d19391419f"},"schema_version":"1.0"},"canonical_sha256":"adebcdfe2e5789b204eda8624875dcd0104439e50d91c6b59b5076417c5b34df","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:37:43.342607Z","signature_b64":"EGxr2LvwvnjINBNG4GXjYgF6PrQBFcXqsf0AOeKlAGiG1MlwGnLYJ6fD7zjzyLYRwSd611c88ibKR1C1uQkTBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"adebcdfe2e5789b204eda8624875dcd0104439e50d91c6b59b5076417c5b34df","last_reissued_at":"2026-05-18T02:37:43.342185Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:37:43.342185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.3614","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":"2026-05-18T02:37:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wlcMZAEuYlj47GjGo0kdoXdX1qujIBDrH6k1wfaDmrmUxsBPLDk9u4TYfXTViPQ8E0tuG/KZ3/DqWt0vLOQQBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T15:10:06.149907Z"},"content_sha256":"81b467b80dc0bea2727bb477918c855b43199a10535c72236af59ab58f479a69","schema_version":"1.0","event_id":"sha256:81b467b80dc0bea2727bb477918c855b43199a10535c72236af59ab58f479a69"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:VXV437ROK6E3EBHNVBREQ5O42A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Transmission efficiency measurement at the FNAL 4-rod RFQ","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"A. Saini, F.G. Garcia, J.-F Ostiguy, J.-P. Carneiro, P. Ostroumov (Argonne), R. Zwaska (Fermilab) B. Mustapha","submitted_at":"2014-11-13T16:58:20Z","abstract_excerpt":"This paper presents measurements of the beam transmission performed on the 4-rod RFQ currently under operation at Fermilab. The beam current has been measured at the RFQ exit as a function of the magnetic field strength in the two LEBT solenoids. This measurement is compared with scans performed on the FermiGrid with the beam dynamics code TRACK. A particular attention is given to the impact, on the RFQ beam transmission, of the space-charge neutralization in the LEBT."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.3614","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":"2026-05-18T02:37:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fc03yQo1b5YqVuQlZXqtDPfeyo1UqontwIIjdkaBb77k1RDFIEnxFUMmzCiiq7ErEq2CFCRZgoA9e1T72gGfBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T15:10:06.150275Z"},"content_sha256":"600214b404bdbf51e12c0d01b64895b7ad7bd1400eab5567ac6aa3a73fd49e62","schema_version":"1.0","event_id":"sha256:600214b404bdbf51e12c0d01b64895b7ad7bd1400eab5567ac6aa3a73fd49e62"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VXV437ROK6E3EBHNVBREQ5O42A/bundle.json","state_url":"https://pith.science/pith/VXV437ROK6E3EBHNVBREQ5O42A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VXV437ROK6E3EBHNVBREQ5O42A/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":"2026-06-05T15:10:06Z","links":{"resolver":"https://pith.science/pith/VXV437ROK6E3EBHNVBREQ5O42A","bundle":"https://pith.science/pith/VXV437ROK6E3EBHNVBREQ5O42A/bundle.json","state":"https://pith.science/pith/VXV437ROK6E3EBHNVBREQ5O42A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VXV437ROK6E3EBHNVBREQ5O42A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:VXV437ROK6E3EBHNVBREQ5O42A","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":"33d35c58b9c02162900b2a7a751925d0ac937df42f316aeebc0361d19391419f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-11-13T16:58:20Z","title_canon_sha256":"f761c9d616beadd8193cdccc1279477cec39471e24cddeac52dc730c3d6cc668"},"schema_version":"1.0","source":{"id":"1411.3614","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.3614","created_at":"2026-05-18T02:37:43Z"},{"alias_kind":"arxiv_version","alias_value":"1411.3614v1","created_at":"2026-05-18T02:37:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.3614","created_at":"2026-05-18T02:37:43Z"},{"alias_kind":"pith_short_12","alias_value":"VXV437ROK6E3","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"VXV437ROK6E3EBHN","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"VXV437RO","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:600214b404bdbf51e12c0d01b64895b7ad7bd1400eab5567ac6aa3a73fd49e62","target":"graph","created_at":"2026-05-18T02:37:43Z","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":"This paper presents measurements of the beam transmission performed on the 4-rod RFQ currently under operation at Fermilab. The beam current has been measured at the RFQ exit as a function of the magnetic field strength in the two LEBT solenoids. This measurement is compared with scans performed on the FermiGrid with the beam dynamics code TRACK. A particular attention is given to the impact, on the RFQ beam transmission, of the space-charge neutralization in the LEBT.","authors_text":"A. Saini, F.G. Garcia, J.-F Ostiguy, J.-P. Carneiro, P. Ostroumov (Argonne), R. Zwaska (Fermilab) B. Mustapha","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-11-13T16:58:20Z","title":"Transmission efficiency measurement at the FNAL 4-rod RFQ"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.3614","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":"sha256:81b467b80dc0bea2727bb477918c855b43199a10535c72236af59ab58f479a69","target":"record","created_at":"2026-05-18T02:37:43Z","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":"33d35c58b9c02162900b2a7a751925d0ac937df42f316aeebc0361d19391419f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2014-11-13T16:58:20Z","title_canon_sha256":"f761c9d616beadd8193cdccc1279477cec39471e24cddeac52dc730c3d6cc668"},"schema_version":"1.0","source":{"id":"1411.3614","kind":"arxiv","version":1}},"canonical_sha256":"adebcdfe2e5789b204eda8624875dcd0104439e50d91c6b59b5076417c5b34df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"adebcdfe2e5789b204eda8624875dcd0104439e50d91c6b59b5076417c5b34df","first_computed_at":"2026-05-18T02:37:43.342185Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:37:43.342185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EGxr2LvwvnjINBNG4GXjYgF6PrQBFcXqsf0AOeKlAGiG1MlwGnLYJ6fD7zjzyLYRwSd611c88ibKR1C1uQkTBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:37:43.342607Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.3614","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81b467b80dc0bea2727bb477918c855b43199a10535c72236af59ab58f479a69","sha256:600214b404bdbf51e12c0d01b64895b7ad7bd1400eab5567ac6aa3a73fd49e62"],"state_sha256":"d78a18731aa5534fe5f257d7de5b94e64fb17202888e0a0d7e6a9f099a1c16d4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YK44zuhQiZ0Ls8RNwyDGxj4QcOkkfdY/ypWK8CWksrjeZnRRKiTNAjkqM+eWmKiGEmqo8d+S8mjnzlettYtEBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T15:10:06.152691Z","bundle_sha256":"6096225abb5282cd2253564e5baff2756b09ad654a4967de853a2ab5dee4f75c"}}