{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:P6PMDJGBACJAPJXDFCA2TQ4XKW","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":"e2672f6e4410242b983b463d493e324e710ffa297dfecc90f937c8e92934caa2","cross_cats_sorted":["physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-17T15:57:35Z","title_canon_sha256":"0ab8ff528e722c6d47497bc7bb6a9c5887aed27d4f467356367dbbae4a08089b"},"schema_version":"1.0","source":{"id":"1503.05104","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.05104","created_at":"2026-05-18T01:29:02Z"},{"alias_kind":"arxiv_version","alias_value":"1503.05104v1","created_at":"2026-05-18T01:29:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.05104","created_at":"2026-05-18T01:29:02Z"},{"alias_kind":"pith_short_12","alias_value":"P6PMDJGBACJA","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"P6PMDJGBACJAPJXD","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"P6PMDJGB","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:4d74b25610a3ad87c1653189d5c232f0fe4c824764bb756f41b0ff342f385871","target":"graph","created_at":"2026-05-18T01:29:02Z","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 self-modulation instability is a key effect that makes possible the usage of nowadays proton beams as drivers for plasma wakefield acceleration. Development of the instability in uniform plasmas and in plasmas with a small density up-step is numerically studied with the focus at nonlinear stages of beam evolution. The step parameters providing the strongest established wakefield are found, and the mechanism of stable bunch train formation is identified.","authors_text":"K.V. Lotov","cross_cats":["physics.acc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-17T15:57:35Z","title":"Physics of beam self-modulation in plasma wakefield accelerators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.05104","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":"sha256:0e1e923eb9de4483509dc918315b6c44adc5f97e3db1054e86df528bde882c7b","target":"record","created_at":"2026-05-18T01:29:02Z","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":"e2672f6e4410242b983b463d493e324e710ffa297dfecc90f937c8e92934caa2","cross_cats_sorted":["physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-17T15:57:35Z","title_canon_sha256":"0ab8ff528e722c6d47497bc7bb6a9c5887aed27d4f467356367dbbae4a08089b"},"schema_version":"1.0","source":{"id":"1503.05104","kind":"arxiv","version":1}},"canonical_sha256":"7f9ec1a4c1009207a6e32881a9c397559a02d3c39e3429eaf6222e4e49bf1bdf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f9ec1a4c1009207a6e32881a9c397559a02d3c39e3429eaf6222e4e49bf1bdf","first_computed_at":"2026-05-18T01:29:02.731990Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:29:02.731990Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FJDD/U/dnmRaUge+7I8waIeZ7WBOKXEyPdaG5jvE9UgXnHuVOvIzLb4R2oHcYuZDNd8UeisDtR2210BnZo1ZDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:29:02.732653Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.05104","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e1e923eb9de4483509dc918315b6c44adc5f97e3db1054e86df528bde882c7b","sha256:4d74b25610a3ad87c1653189d5c232f0fe4c824764bb756f41b0ff342f385871"],"state_sha256":"12f9f9598763013b7d1c017a3c9d1a118b6e7d37a2f068df43f2e368bfdd4fa1"}