{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:S4VODKRG2HHNDJN43O2JRI7T3Z","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":"0ff286fd0366735da63b69e0343be869e515eb3b12fd1b58693c8e03e1b1d317","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2024-03-14T14:18:21Z","title_canon_sha256":"6932a2c0014ea79e92137448ba93023b514e553ced069c105106c7584798ef6f"},"schema_version":"1.0","source":{"id":"2403.09427","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.09427","created_at":"2026-07-05T07:56:09Z"},{"alias_kind":"arxiv_version","alias_value":"2403.09427v1","created_at":"2026-07-05T07:56:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.09427","created_at":"2026-07-05T07:56:09Z"},{"alias_kind":"pith_short_12","alias_value":"S4VODKRG2HHN","created_at":"2026-07-05T07:56:09Z"},{"alias_kind":"pith_short_16","alias_value":"S4VODKRG2HHNDJN4","created_at":"2026-07-05T07:56:09Z"},{"alias_kind":"pith_short_8","alias_value":"S4VODKRG","created_at":"2026-07-05T07:56:09Z"}],"graph_snapshots":[{"event_id":"sha256:4cfca62bb10effc1d4fbd59a0b494d8f23c14205d132303c0446736427e1df15","target":"graph","created_at":"2026-07-05T07:56:09Z","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/2403.09427/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Wakefield excitation by structured electron bunches in hollow gaps between plasma wedges is studied using three-dimensional particle-in-cell simulations. The main part of the electron bunch has a triangular current distribution in the longitudinal direction with a smooth head and short tail. These bunches propagate stably in the hollow gap while being attached to cusps of the plasma wedges. The excited wakefield profile may have a very high transformer ratio and allows to accelerate witness bunches to energies much higher than that of the driver bunch. Unlike round hollow channels, where asymm","authors_text":"Alexander Pukhov, Lars Reichwein","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2024-03-14T14:18:21Z","title":"Stable high-transformer ratio beam-wakefield acceleration in cusp plasma channels"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.09427","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:e4ae9c1b2cdb8cb099a8296bfee33ee71e40a2f0271293e844abd94df2f9e232","target":"record","created_at":"2026-07-05T07:56:09Z","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":"0ff286fd0366735da63b69e0343be869e515eb3b12fd1b58693c8e03e1b1d317","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2024-03-14T14:18:21Z","title_canon_sha256":"6932a2c0014ea79e92137448ba93023b514e553ced069c105106c7584798ef6f"},"schema_version":"1.0","source":{"id":"2403.09427","kind":"arxiv","version":1}},"canonical_sha256":"972ae1aa26d1ced1a5bcdbb498a3f3de6710e3973de4e236c828163db7230ca4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"972ae1aa26d1ced1a5bcdbb498a3f3de6710e3973de4e236c828163db7230ca4","first_computed_at":"2026-07-05T07:56:09.955051Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:56:09.955051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fUNBz+uye9o3f6TshkhLZzF2VzwN+YKGNE8dMsaKSd2dLhAr2/LRwcvP6VsiKkcj2RNYPLQJl/hd/2seGQ80AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:56:09.955520Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.09427","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e4ae9c1b2cdb8cb099a8296bfee33ee71e40a2f0271293e844abd94df2f9e232","sha256:4cfca62bb10effc1d4fbd59a0b494d8f23c14205d132303c0446736427e1df15"],"state_sha256":"c8b6cf2a690bc40530dcd62a9f2908a58ff9289b0ff725c4d11c859498f83dfa"}