{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:CONXDRXIRIQBTY7L5PIVNMFCJG","short_pith_number":"pith:CONXDRXI","canonical_record":{"source":{"id":"2507.02269","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-07-03T03:22:58Z","cross_cats_sorted":[],"title_canon_sha256":"a8ce69808e1a6eac530a328dce2299fc706125828e3aad5fe502356d83686054","abstract_canon_sha256":"8ff9f3b76c3a03734c6f402a74b54402d2c51e38b3840e4bdba62e6428c961c3"},"schema_version":"1.0"},"canonical_sha256":"139b71c6e88a2019e3ebebd156b0a249b15c0fa49d956fe4fc1533b021958563","source":{"kind":"arxiv","id":"2507.02269","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.02269","created_at":"2026-07-05T11:31:14Z"},{"alias_kind":"arxiv_version","alias_value":"2507.02269v1","created_at":"2026-07-05T11:31:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.02269","created_at":"2026-07-05T11:31:14Z"},{"alias_kind":"pith_short_12","alias_value":"CONXDRXIRIQB","created_at":"2026-07-05T11:31:14Z"},{"alias_kind":"pith_short_16","alias_value":"CONXDRXIRIQBTY7L","created_at":"2026-07-05T11:31:14Z"},{"alias_kind":"pith_short_8","alias_value":"CONXDRXI","created_at":"2026-07-05T11:31:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:CONXDRXIRIQBTY7L5PIVNMFCJG","target":"record","payload":{"canonical_record":{"source":{"id":"2507.02269","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-07-03T03:22:58Z","cross_cats_sorted":[],"title_canon_sha256":"a8ce69808e1a6eac530a328dce2299fc706125828e3aad5fe502356d83686054","abstract_canon_sha256":"8ff9f3b76c3a03734c6f402a74b54402d2c51e38b3840e4bdba62e6428c961c3"},"schema_version":"1.0"},"canonical_sha256":"139b71c6e88a2019e3ebebd156b0a249b15c0fa49d956fe4fc1533b021958563","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:31:14.811090Z","signature_b64":"U7kAxodGLScwej/5KTP9ZyHGuA4Sw7j/hXlc4xy1JtxTCatYWicx1oeuFzlce3P7jpChl025m4KR+jGxy8S+Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"139b71c6e88a2019e3ebebd156b0a249b15c0fa49d956fe4fc1533b021958563","last_reissued_at":"2026-07-05T11:31:14.810648Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:31:14.810648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.02269","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":"2026-07-05T11:31:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SPnGe/wXtZbBXF4z4nAjND8p8EhLKxd+UWTr7x3WAveZaf6/gjKiZ3yzlpoL22Cw8qUT5vi1iBVj+XmfJbT/CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T07:33:21.609912Z"},"content_sha256":"a0ab4c0314f759b1510082f045235121d01c52cd47237a05838792ab304b2e57","schema_version":"1.0","event_id":"sha256:a0ab4c0314f759b1510082f045235121d01c52cd47237a05838792ab304b2e57"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:CONXDRXIRIQBTY7L5PIVNMFCJG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Numerical simulations of electron acceleration driven by heavy ion beams in plasma with alternating density gradients","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"Guoxing Xia, Jiancheng Yang, Jiangdong Li, Jie Liu, Ruihu Zhu, Xiangwen Qiao","submitted_at":"2025-07-03T03:22:58Z","abstract_excerpt":"Plasma-Based Acceleration (PBA) has been demonstrated using laser, electron, and proton drivers. However, significant challenges remain in achieving high efficiency, stable acceleration, and scalable energy gain. Heavy ion beam drivers, with their high kinetic energy, offer the potential for greater energy transfer to the witness beam. Unfortunately, limited by the relatively low velocity of heavy ion, the dephasing length is really short leading to a low energy gain of the witness beam. Conventional method that increase plasma density linearly is ineffective in this context because the mismat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.02269","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2507.02269/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:31:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RAvB5aliQr7gUPdyU8XuJ+7eKTIzXQ16cc0+eIp6w2k/pINO0enlr+bQGOf8ZVdV3D/7W4lzta+l86ZsyADTCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T07:33:21.610322Z"},"content_sha256":"c6422fd3315ae529d9728ccf06ce1602a58c7dd5c0076624f748e98668e53e54","schema_version":"1.0","event_id":"sha256:c6422fd3315ae529d9728ccf06ce1602a58c7dd5c0076624f748e98668e53e54"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CONXDRXIRIQBTY7L5PIVNMFCJG/bundle.json","state_url":"https://pith.science/pith/CONXDRXIRIQBTY7L5PIVNMFCJG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CONXDRXIRIQBTY7L5PIVNMFCJG/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":"2026-08-07T07:33:21Z","links":{"resolver":"https://pith.science/pith/CONXDRXIRIQBTY7L5PIVNMFCJG","bundle":"https://pith.science/pith/CONXDRXIRIQBTY7L5PIVNMFCJG/bundle.json","state":"https://pith.science/pith/CONXDRXIRIQBTY7L5PIVNMFCJG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CONXDRXIRIQBTY7L5PIVNMFCJG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:CONXDRXIRIQBTY7L5PIVNMFCJG","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":"8ff9f3b76c3a03734c6f402a74b54402d2c51e38b3840e4bdba62e6428c961c3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-07-03T03:22:58Z","title_canon_sha256":"a8ce69808e1a6eac530a328dce2299fc706125828e3aad5fe502356d83686054"},"schema_version":"1.0","source":{"id":"2507.02269","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.02269","created_at":"2026-07-05T11:31:14Z"},{"alias_kind":"arxiv_version","alias_value":"2507.02269v1","created_at":"2026-07-05T11:31:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.02269","created_at":"2026-07-05T11:31:14Z"},{"alias_kind":"pith_short_12","alias_value":"CONXDRXIRIQB","created_at":"2026-07-05T11:31:14Z"},{"alias_kind":"pith_short_16","alias_value":"CONXDRXIRIQBTY7L","created_at":"2026-07-05T11:31:14Z"},{"alias_kind":"pith_short_8","alias_value":"CONXDRXI","created_at":"2026-07-05T11:31:14Z"}],"graph_snapshots":[{"event_id":"sha256:c6422fd3315ae529d9728ccf06ce1602a58c7dd5c0076624f748e98668e53e54","target":"graph","created_at":"2026-07-05T11:31:14Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2507.02269/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Plasma-Based Acceleration (PBA) has been demonstrated using laser, electron, and proton drivers. However, significant challenges remain in achieving high efficiency, stable acceleration, and scalable energy gain. Heavy ion beam drivers, with their high kinetic energy, offer the potential for greater energy transfer to the witness beam. Unfortunately, limited by the relatively low velocity of heavy ion, the dephasing length is really short leading to a low energy gain of the witness beam. Conventional method that increase plasma density linearly is ineffective in this context because the mismat","authors_text":"Guoxing Xia, Jiancheng Yang, Jiangdong Li, Jie Liu, Ruihu Zhu, Xiangwen Qiao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-07-03T03:22:58Z","title":"Numerical simulations of electron acceleration driven by heavy ion beams in plasma with alternating density gradients"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.02269","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:a0ab4c0314f759b1510082f045235121d01c52cd47237a05838792ab304b2e57","target":"record","created_at":"2026-07-05T11:31:14Z","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":"8ff9f3b76c3a03734c6f402a74b54402d2c51e38b3840e4bdba62e6428c961c3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-07-03T03:22:58Z","title_canon_sha256":"a8ce69808e1a6eac530a328dce2299fc706125828e3aad5fe502356d83686054"},"schema_version":"1.0","source":{"id":"2507.02269","kind":"arxiv","version":1}},"canonical_sha256":"139b71c6e88a2019e3ebebd156b0a249b15c0fa49d956fe4fc1533b021958563","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"139b71c6e88a2019e3ebebd156b0a249b15c0fa49d956fe4fc1533b021958563","first_computed_at":"2026-07-05T11:31:14.810648Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:31:14.810648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U7kAxodGLScwej/5KTP9ZyHGuA4Sw7j/hXlc4xy1JtxTCatYWicx1oeuFzlce3P7jpChl025m4KR+jGxy8S+Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:31:14.811090Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.02269","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0ab4c0314f759b1510082f045235121d01c52cd47237a05838792ab304b2e57","sha256:c6422fd3315ae529d9728ccf06ce1602a58c7dd5c0076624f748e98668e53e54"],"state_sha256":"442a5524581c432dde9b3632a4ef99f061e0f8ff3bfe5b0443f76682a417419a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ThGPwRFNL76bjjQuK8hlfHTISFJwnXM3aDNfm45aOqlEb7Su5l6Zslmf3xGamMdZWev6uDnL7VINrhBCXoyfCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T07:33:21.613272Z","bundle_sha256":"e7344aa48639646d7f76743f6e1702aa28c7e8728b548853375265a0b1ca06fd"}}