{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:JYZQI4KW5Y5TDA7PTTKELJMUKY","short_pith_number":"pith:JYZQI4KW","canonical_record":{"source":{"id":"1306.1613","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-06-07T05:20:39Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"64c581fbc32dde280013f14e9c6481aac53b281d776869c2f9701cb55a77a820","abstract_canon_sha256":"16ef493120cb8e6e335241709bcda78989d67711a96b64cdaa28582c344c4c88"},"schema_version":"1.0"},"canonical_sha256":"4e33047156ee3b3183ef9cd445a594562ff4dc8163a3f34492e737ae7bb7d307","source":{"kind":"arxiv","id":"1306.1613","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.1613","created_at":"2026-05-18T03:21:32Z"},{"alias_kind":"arxiv_version","alias_value":"1306.1613v1","created_at":"2026-05-18T03:21:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.1613","created_at":"2026-05-18T03:21:32Z"},{"alias_kind":"pith_short_12","alias_value":"JYZQI4KW5Y5T","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JYZQI4KW5Y5TDA7P","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JYZQI4KW","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:JYZQI4KW5Y5TDA7PTTKELJMUKY","target":"record","payload":{"canonical_record":{"source":{"id":"1306.1613","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-06-07T05:20:39Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"64c581fbc32dde280013f14e9c6481aac53b281d776869c2f9701cb55a77a820","abstract_canon_sha256":"16ef493120cb8e6e335241709bcda78989d67711a96b64cdaa28582c344c4c88"},"schema_version":"1.0"},"canonical_sha256":"4e33047156ee3b3183ef9cd445a594562ff4dc8163a3f34492e737ae7bb7d307","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:21:32.932030Z","signature_b64":"5i58ToFrA/aXiKUQFAFGRulGDk72ZVx8pvFqNycI1bnzQZQkJ9DcoPGAwmDUodFxwHyi+wyi1WusE0bUYRp/Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e33047156ee3b3183ef9cd445a594562ff4dc8163a3f34492e737ae7bb7d307","last_reissued_at":"2026-05-18T03:21:32.931307Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:21:32.931307Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.1613","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":"2026-05-18T03:21:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PjJCSm1/le/9KfhqoeZeLOmI3TFX9EBL4JP/Y9LnZDz6rS4PNG1JwqR2mxPEsTU0PFOi6wsmmfWowk47q5vlBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T22:05:44.731692Z"},"content_sha256":"de3fc713cff89d966fef80e28eff033bdef2990dc18f7bf7cab6dcae1d886830","schema_version":"1.0","event_id":"sha256:de3fc713cff89d966fef80e28eff033bdef2990dc18f7bf7cab6dcae1d886830"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:JYZQI4KW5Y5TDA7PTTKELJMUKY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scheme for proton-driven plasma-wakefield acceleration of positively charged particles in a hollow plasma channel","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.acc-ph"],"primary_cat":"physics.plasm-ph","authors_text":"Baifei Shen, Jiancai Xu, Konstantin Lotov, Liangliang Ji, Lingang Zhang, Longqing Yi, Tongjun Xu, Wenpeng Wang, Xiaofeng Wang, Xiaomei Zhang, Xueyan Zhao, Yahong Yu, Yin Shi, Zhizhan Xu","submitted_at":"2013-06-07T05:20:39Z","abstract_excerpt":"A new scheme for accelerating positively charged particles in a plasma wakefield accelerator is proposed. If the proton drive beam propagates in a hollow plasma channel, and the beam radius is of order of the channel width, the space charge force of the driver causes charge separation at the channel wall, which helps to focus the positively charged witness bunch propagating along the beam axis. In the channel, the acceleration buckets for positively charged particles are much larger than in the blowout regime of the uniform plasma, and stable acceleration over long distances is possible. In ad"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.1613","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":"2026-05-18T03:21:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kgz/jVztSud6n7sd75PiirKfrknn5pQU+Jl9N8J2bzTt0HlSkIsQHkPcnXZCZnVtjBniKfegd2uJ+3yv8rorDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T22:05:44.732308Z"},"content_sha256":"cc13ddb78d00ffb71c1c11fd83fb9b41b9b812ce86a7ca094f4982b640a4cb1c","schema_version":"1.0","event_id":"sha256:cc13ddb78d00ffb71c1c11fd83fb9b41b9b812ce86a7ca094f4982b640a4cb1c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JYZQI4KW5Y5TDA7PTTKELJMUKY/bundle.json","state_url":"https://pith.science/pith/JYZQI4KW5Y5TDA7PTTKELJMUKY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JYZQI4KW5Y5TDA7PTTKELJMUKY/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":"2026-06-06T22:05:44Z","links":{"resolver":"https://pith.science/pith/JYZQI4KW5Y5TDA7PTTKELJMUKY","bundle":"https://pith.science/pith/JYZQI4KW5Y5TDA7PTTKELJMUKY/bundle.json","state":"https://pith.science/pith/JYZQI4KW5Y5TDA7PTTKELJMUKY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JYZQI4KW5Y5TDA7PTTKELJMUKY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JYZQI4KW5Y5TDA7PTTKELJMUKY","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":"16ef493120cb8e6e335241709bcda78989d67711a96b64cdaa28582c344c4c88","cross_cats_sorted":["physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-06-07T05:20:39Z","title_canon_sha256":"64c581fbc32dde280013f14e9c6481aac53b281d776869c2f9701cb55a77a820"},"schema_version":"1.0","source":{"id":"1306.1613","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.1613","created_at":"2026-05-18T03:21:32Z"},{"alias_kind":"arxiv_version","alias_value":"1306.1613v1","created_at":"2026-05-18T03:21:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.1613","created_at":"2026-05-18T03:21:32Z"},{"alias_kind":"pith_short_12","alias_value":"JYZQI4KW5Y5T","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JYZQI4KW5Y5TDA7P","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JYZQI4KW","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:cc13ddb78d00ffb71c1c11fd83fb9b41b9b812ce86a7ca094f4982b640a4cb1c","target":"graph","created_at":"2026-05-18T03:21:32Z","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":"A new scheme for accelerating positively charged particles in a plasma wakefield accelerator is proposed. If the proton drive beam propagates in a hollow plasma channel, and the beam radius is of order of the channel width, the space charge force of the driver causes charge separation at the channel wall, which helps to focus the positively charged witness bunch propagating along the beam axis. In the channel, the acceleration buckets for positively charged particles are much larger than in the blowout regime of the uniform plasma, and stable acceleration over long distances is possible. In ad","authors_text":"Baifei Shen, Jiancai Xu, Konstantin Lotov, Liangliang Ji, Lingang Zhang, Longqing Yi, Tongjun Xu, Wenpeng Wang, Xiaofeng Wang, Xiaomei Zhang, Xueyan Zhao, Yahong Yu, Yin Shi, Zhizhan Xu","cross_cats":["physics.acc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-06-07T05:20:39Z","title":"Scheme for proton-driven plasma-wakefield acceleration of positively charged particles in a hollow plasma channel"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.1613","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:de3fc713cff89d966fef80e28eff033bdef2990dc18f7bf7cab6dcae1d886830","target":"record","created_at":"2026-05-18T03:21:32Z","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":"16ef493120cb8e6e335241709bcda78989d67711a96b64cdaa28582c344c4c88","cross_cats_sorted":["physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-06-07T05:20:39Z","title_canon_sha256":"64c581fbc32dde280013f14e9c6481aac53b281d776869c2f9701cb55a77a820"},"schema_version":"1.0","source":{"id":"1306.1613","kind":"arxiv","version":1}},"canonical_sha256":"4e33047156ee3b3183ef9cd445a594562ff4dc8163a3f34492e737ae7bb7d307","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e33047156ee3b3183ef9cd445a594562ff4dc8163a3f34492e737ae7bb7d307","first_computed_at":"2026-05-18T03:21:32.931307Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:21:32.931307Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5i58ToFrA/aXiKUQFAFGRulGDk72ZVx8pvFqNycI1bnzQZQkJ9DcoPGAwmDUodFxwHyi+wyi1WusE0bUYRp/Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:21:32.932030Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.1613","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de3fc713cff89d966fef80e28eff033bdef2990dc18f7bf7cab6dcae1d886830","sha256:cc13ddb78d00ffb71c1c11fd83fb9b41b9b812ce86a7ca094f4982b640a4cb1c"],"state_sha256":"ade808bcda6169cf643ca67d346af549973f102a3a8ba43c073d74cf2c1d92bd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s92pHysmSYDRjJ/o+tFuZQSXUVBuzcJoJm3FrIwQNa2Yos+4NWfLCTtNLBcmbiTDDuL0g24aFvC1n50MDdHTAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T22:05:44.736133Z","bundle_sha256":"7e169eec9c30a97517e93327433e4254433b2986ebe69615f7b76ebc3c96145e"}}