{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:4RPCJU52QAP5B347RYK3QNTQDI","short_pith_number":"pith:4RPCJU52","canonical_record":{"source":{"id":"1902.09619","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-02-25T21:03:21Z","cross_cats_sorted":[],"title_canon_sha256":"779aa53bf6727bc13f574e41dd9358ee2c0eb826ef96d4f7a4b2692dd5905e74","abstract_canon_sha256":"b1b811c6eddec99f4d83799d3b905d44bf0e04990c0f84dfbba1542ac82703df"},"schema_version":"1.0"},"canonical_sha256":"e45e24d3ba801fd0ef9f8e15b836701a0073ad25581cb3cdb8ae763d5f517009","source":{"kind":"arxiv","id":"1902.09619","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09619","created_at":"2026-05-17T23:52:45Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09619v1","created_at":"2026-05-17T23:52:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09619","created_at":"2026-05-17T23:52:45Z"},{"alias_kind":"pith_short_12","alias_value":"4RPCJU52QAP5","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"4RPCJU52QAP5B347","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"4RPCJU52","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:4RPCJU52QAP5B347RYK3QNTQDI","target":"record","payload":{"canonical_record":{"source":{"id":"1902.09619","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-02-25T21:03:21Z","cross_cats_sorted":[],"title_canon_sha256":"779aa53bf6727bc13f574e41dd9358ee2c0eb826ef96d4f7a4b2692dd5905e74","abstract_canon_sha256":"b1b811c6eddec99f4d83799d3b905d44bf0e04990c0f84dfbba1542ac82703df"},"schema_version":"1.0"},"canonical_sha256":"e45e24d3ba801fd0ef9f8e15b836701a0073ad25581cb3cdb8ae763d5f517009","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:45.092128Z","signature_b64":"cyRHirffG6irxzgL2mB8Ozx10Rps7vTMcEs5fR2dgOHH2YTrueUn/awnQXv0/Y4V6UG6FH30FaVo/WhSn9KRCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e45e24d3ba801fd0ef9f8e15b836701a0073ad25581cb3cdb8ae763d5f517009","last_reissued_at":"2026-05-17T23:52:45.091530Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:45.091530Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.09619","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":"2026-05-17T23:52:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UnmKEzy2i4+W++qh1Td7taqyVX4ph/Qu0LOvZehmB1f7P/z+ai6CoAacfZab5DEGJCq7xdwvctVtA6TjQMvJAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T00:02:58.717373Z"},"content_sha256":"31ef484a7a29a2704990fb5913ed83ba93b38420d0261eba929791a9fe866463","schema_version":"1.0","event_id":"sha256:31ef484a7a29a2704990fb5913ed83ba93b38420d0261eba929791a9fe866463"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:4RPCJU52QAP5B347RYK3QNTQDI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Solenoid: universal tool for measuring beam parameters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"Dmitry Kayran, Gang Wang, Igor Pinayev, Irina Petrushina, Kay Shih, Kentaro Mihara, Vladimir N. Litvinenko, Yichao Jing","submitted_at":"2019-02-25T21:03:21Z","abstract_excerpt":"Solenoids are frequently used for focusing of the low energy electron beams. In this paper we focus on using these magnets as a nearly universal tool for measuring beam parameters including energy, emittance, and the beam position and angle with respect to the solenoid axis. We describe in detail corresponding procedures as well as experimental results of such measurements."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09619","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":"2026-05-17T23:52:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9xj4s8mwzSZb0e0UOMXB47NoXuk+gGNTFhPBrQqFW8Kn0M40RbHOx2Y8pTO9+A8mWsDkIG3iBnphwI+Tgi3uDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T00:02:58.718096Z"},"content_sha256":"0f9a239c9878c20698628ae8c5c66e27e00a191bda95b9863179526e12463346","schema_version":"1.0","event_id":"sha256:0f9a239c9878c20698628ae8c5c66e27e00a191bda95b9863179526e12463346"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4RPCJU52QAP5B347RYK3QNTQDI/bundle.json","state_url":"https://pith.science/pith/4RPCJU52QAP5B347RYK3QNTQDI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4RPCJU52QAP5B347RYK3QNTQDI/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":"2026-05-20T00:02:58Z","links":{"resolver":"https://pith.science/pith/4RPCJU52QAP5B347RYK3QNTQDI","bundle":"https://pith.science/pith/4RPCJU52QAP5B347RYK3QNTQDI/bundle.json","state":"https://pith.science/pith/4RPCJU52QAP5B347RYK3QNTQDI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4RPCJU52QAP5B347RYK3QNTQDI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:4RPCJU52QAP5B347RYK3QNTQDI","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":"b1b811c6eddec99f4d83799d3b905d44bf0e04990c0f84dfbba1542ac82703df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-02-25T21:03:21Z","title_canon_sha256":"779aa53bf6727bc13f574e41dd9358ee2c0eb826ef96d4f7a4b2692dd5905e74"},"schema_version":"1.0","source":{"id":"1902.09619","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09619","created_at":"2026-05-17T23:52:45Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09619v1","created_at":"2026-05-17T23:52:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09619","created_at":"2026-05-17T23:52:45Z"},{"alias_kind":"pith_short_12","alias_value":"4RPCJU52QAP5","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"4RPCJU52QAP5B347","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"4RPCJU52","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:0f9a239c9878c20698628ae8c5c66e27e00a191bda95b9863179526e12463346","target":"graph","created_at":"2026-05-17T23:52:45Z","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":"Solenoids are frequently used for focusing of the low energy electron beams. In this paper we focus on using these magnets as a nearly universal tool for measuring beam parameters including energy, emittance, and the beam position and angle with respect to the solenoid axis. We describe in detail corresponding procedures as well as experimental results of such measurements.","authors_text":"Dmitry Kayran, Gang Wang, Igor Pinayev, Irina Petrushina, Kay Shih, Kentaro Mihara, Vladimir N. Litvinenko, Yichao Jing","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-02-25T21:03:21Z","title":"Solenoid: universal tool for measuring beam parameters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09619","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":"sha256:31ef484a7a29a2704990fb5913ed83ba93b38420d0261eba929791a9fe866463","target":"record","created_at":"2026-05-17T23:52:45Z","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":"b1b811c6eddec99f4d83799d3b905d44bf0e04990c0f84dfbba1542ac82703df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-02-25T21:03:21Z","title_canon_sha256":"779aa53bf6727bc13f574e41dd9358ee2c0eb826ef96d4f7a4b2692dd5905e74"},"schema_version":"1.0","source":{"id":"1902.09619","kind":"arxiv","version":1}},"canonical_sha256":"e45e24d3ba801fd0ef9f8e15b836701a0073ad25581cb3cdb8ae763d5f517009","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e45e24d3ba801fd0ef9f8e15b836701a0073ad25581cb3cdb8ae763d5f517009","first_computed_at":"2026-05-17T23:52:45.091530Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:45.091530Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cyRHirffG6irxzgL2mB8Ozx10Rps7vTMcEs5fR2dgOHH2YTrueUn/awnQXv0/Y4V6UG6FH30FaVo/WhSn9KRCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:45.092128Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.09619","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:31ef484a7a29a2704990fb5913ed83ba93b38420d0261eba929791a9fe866463","sha256:0f9a239c9878c20698628ae8c5c66e27e00a191bda95b9863179526e12463346"],"state_sha256":"9d48ed1080854c210f5477bd57166612ec314f6e4f17104fe1e901750a02d682"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FKsWssaFPkoQlNkAFjOaFADFhRauP4yKUPcbAGq9X3VO4Nkx7UVZZj8VbvRgCwjo/Givl/AN1eQIJpfr1lfVAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T00:02:58.723030Z","bundle_sha256":"b1cf9a34fa643b2adce45739a05ddbdd7b0969678e095665e70af71ba84a1f7b"}}