{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:OX5GHASTOSOEVSZOR2APIKWK55","short_pith_number":"pith:OX5GHAST","canonical_record":{"source":{"id":"1509.04158","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-09-09T07:20:41Z","cross_cats_sorted":[],"title_canon_sha256":"e9e6850868f2c5d12e214c7a7c6c5d62243422d6a5902d2e18cedd5eaa761bc3","abstract_canon_sha256":"dfa34aaded4309d280ba00228f8a0dc2ba64a1dd04e175bbee007b9041419046"},"schema_version":"1.0"},"canonical_sha256":"75fa638253749c4acb2e8e80f42acaef48305f4671fe41543d91752238b7c6a3","source":{"kind":"arxiv","id":"1509.04158","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.04158","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"arxiv_version","alias_value":"1509.04158v1","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.04158","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"pith_short_12","alias_value":"OX5GHASTOSOE","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OX5GHASTOSOEVSZO","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OX5GHAST","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:OX5GHASTOSOEVSZOR2APIKWK55","target":"record","payload":{"canonical_record":{"source":{"id":"1509.04158","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-09-09T07:20:41Z","cross_cats_sorted":[],"title_canon_sha256":"e9e6850868f2c5d12e214c7a7c6c5d62243422d6a5902d2e18cedd5eaa761bc3","abstract_canon_sha256":"dfa34aaded4309d280ba00228f8a0dc2ba64a1dd04e175bbee007b9041419046"},"schema_version":"1.0"},"canonical_sha256":"75fa638253749c4acb2e8e80f42acaef48305f4671fe41543d91752238b7c6a3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:33:08.204348Z","signature_b64":"gD9odAhkojgklL/Chhjxgpnf4PUq0h5hGiG/4Edpeuxg0kSTExrctdxZNSSkdFlJ/dl+ibG4T65YgXKJNt5SBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75fa638253749c4acb2e8e80f42acaef48305f4671fe41543d91752238b7c6a3","last_reissued_at":"2026-05-18T01:33:08.203562Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:33:08.203562Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.04158","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":"2026-05-18T01:33:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i17Sw4/XPkV+92NeQ2+cuzpXJJjujhTlzsMOjPztKuHAylzrcHAZQAiZvyAEVG/tevlGC5ApTNwhanRrCfFWBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T01:49:24.198633Z"},"content_sha256":"66209a2f3a1d8e0ec856f8c05c9c272f6839e7ca563f5bbd913173ddb08654e1","schema_version":"1.0","event_id":"sha256:66209a2f3a1d8e0ec856f8c05c9c272f6839e7ca563f5bbd913173ddb08654e1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:OX5GHASTOSOEVSZOR2APIKWK55","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A multi beam proton accelerator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"S. N. Dolya","submitted_at":"2015-09-09T07:20:41Z","abstract_excerpt":"The article considers a proton accelerator containing seven independent beams arranged on the accelerator radius. The current in each beam is one hundred milliamps. The initial part of the accelerator consists of shielded spiral waveguides assembled in the common screen. The frequency of the acceleration: three hundred megahertz, high-frequency power twenty-five megawatts, the length of the accelerator six meters. After reaching the proton energy of six megaelektronvolts the protons using lenses with the azimuthal magnetic field are collected in one beam. Further beam acceleration is performed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.04158","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":"2026-05-18T01:33:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5u7TGJq2dAsZQgAmnasXFbRVwLWLeZzrXdn3ZXsHm4eCFdpTcMws36f926drHif6StW/j9T9afUnad9d9FxdDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T01:49:24.199358Z"},"content_sha256":"5d4d54d414ec9e7cf31c1940712c82ba9ab0791d44ae1ad2192918650dee7789","schema_version":"1.0","event_id":"sha256:5d4d54d414ec9e7cf31c1940712c82ba9ab0791d44ae1ad2192918650dee7789"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OX5GHASTOSOEVSZOR2APIKWK55/bundle.json","state_url":"https://pith.science/pith/OX5GHASTOSOEVSZOR2APIKWK55/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OX5GHASTOSOEVSZOR2APIKWK55/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":"2026-06-11T01:49:24Z","links":{"resolver":"https://pith.science/pith/OX5GHASTOSOEVSZOR2APIKWK55","bundle":"https://pith.science/pith/OX5GHASTOSOEVSZOR2APIKWK55/bundle.json","state":"https://pith.science/pith/OX5GHASTOSOEVSZOR2APIKWK55/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OX5GHASTOSOEVSZOR2APIKWK55/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:OX5GHASTOSOEVSZOR2APIKWK55","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":"dfa34aaded4309d280ba00228f8a0dc2ba64a1dd04e175bbee007b9041419046","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-09-09T07:20:41Z","title_canon_sha256":"e9e6850868f2c5d12e214c7a7c6c5d62243422d6a5902d2e18cedd5eaa761bc3"},"schema_version":"1.0","source":{"id":"1509.04158","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.04158","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"arxiv_version","alias_value":"1509.04158v1","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.04158","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"pith_short_12","alias_value":"OX5GHASTOSOE","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OX5GHASTOSOEVSZO","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OX5GHAST","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:5d4d54d414ec9e7cf31c1940712c82ba9ab0791d44ae1ad2192918650dee7789","target":"graph","created_at":"2026-05-18T01:33:08Z","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":"The article considers a proton accelerator containing seven independent beams arranged on the accelerator radius. The current in each beam is one hundred milliamps. The initial part of the accelerator consists of shielded spiral waveguides assembled in the common screen. The frequency of the acceleration: three hundred megahertz, high-frequency power twenty-five megawatts, the length of the accelerator six meters. After reaching the proton energy of six megaelektronvolts the protons using lenses with the azimuthal magnetic field are collected in one beam. Further beam acceleration is performed","authors_text":"S. N. Dolya","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-09-09T07:20:41Z","title":"A multi beam proton accelerator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.04158","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":"sha256:66209a2f3a1d8e0ec856f8c05c9c272f6839e7ca563f5bbd913173ddb08654e1","target":"record","created_at":"2026-05-18T01:33:08Z","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":"dfa34aaded4309d280ba00228f8a0dc2ba64a1dd04e175bbee007b9041419046","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-09-09T07:20:41Z","title_canon_sha256":"e9e6850868f2c5d12e214c7a7c6c5d62243422d6a5902d2e18cedd5eaa761bc3"},"schema_version":"1.0","source":{"id":"1509.04158","kind":"arxiv","version":1}},"canonical_sha256":"75fa638253749c4acb2e8e80f42acaef48305f4671fe41543d91752238b7c6a3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75fa638253749c4acb2e8e80f42acaef48305f4671fe41543d91752238b7c6a3","first_computed_at":"2026-05-18T01:33:08.203562Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:33:08.203562Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gD9odAhkojgklL/Chhjxgpnf4PUq0h5hGiG/4Edpeuxg0kSTExrctdxZNSSkdFlJ/dl+ibG4T65YgXKJNt5SBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:33:08.204348Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.04158","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66209a2f3a1d8e0ec856f8c05c9c272f6839e7ca563f5bbd913173ddb08654e1","sha256:5d4d54d414ec9e7cf31c1940712c82ba9ab0791d44ae1ad2192918650dee7789"],"state_sha256":"1c48e1e69289368a9f9b58a232a22cb74c846da6a293576c40b6bcd100d661e1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tl/xb1dc85XJMYq1raco6CA8fCIhNf1cBlt1DaS4mpqAw9GA9yLfqzE7q3NP7wptGeEBLYWTIaURLKRebCrdAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T01:49:24.203627Z","bundle_sha256":"db91c2c5c20aac794fc5421d1c2242480256b1f08f448b55c2c177292e026f46"}}