{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:BKTZIHHV2MQGGBML6J3LPXBOJ4","short_pith_number":"pith:BKTZIHHV","canonical_record":{"source":{"id":"1810.06307","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-10-15T12:37:14Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"9c4800dc411e6856f9c303ca5c1379ac1e0c5e2fc74596171d495a58a5d65e7a","abstract_canon_sha256":"e8386cb03355c9100449c2480fdc866db6b815aa02f11f0352294769dc022e04"},"schema_version":"1.0"},"canonical_sha256":"0aa7941cf5d32063058bf276b7dc2e4f3006bd852a98fe434b1d3c31c2466c3a","source":{"kind":"arxiv","id":"1810.06307","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.06307","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"arxiv_version","alias_value":"1810.06307v3","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.06307","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"pith_short_12","alias_value":"BKTZIHHV2MQG","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BKTZIHHV2MQGGBML","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BKTZIHHV","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:BKTZIHHV2MQGGBML6J3LPXBOJ4","target":"record","payload":{"canonical_record":{"source":{"id":"1810.06307","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-10-15T12:37:14Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"9c4800dc411e6856f9c303ca5c1379ac1e0c5e2fc74596171d495a58a5d65e7a","abstract_canon_sha256":"e8386cb03355c9100449c2480fdc866db6b815aa02f11f0352294769dc022e04"},"schema_version":"1.0"},"canonical_sha256":"0aa7941cf5d32063058bf276b7dc2e4f3006bd852a98fe434b1d3c31c2466c3a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:38.349030Z","signature_b64":"hG2M/mjzFBjT9GN05YZFBcKEOeebNUfWiZ/aQpzkILkQTS8fFclWZdZnUBB3kPhz+/AonJRxSbk0GwUMsQXEDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0aa7941cf5d32063058bf276b7dc2e4f3006bd852a98fe434b1d3c31c2466c3a","last_reissued_at":"2026-05-17T23:55:38.348622Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:38.348622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.06307","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:55:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"su0C64tcBfcxIjVcrByFUfUl3m/2FQ9KpTooJk4Pe5ecpAWPZg+gl+OiXN+yO1kSD0exRFvNRML4BU2FgfJhCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T08:59:57.943488Z"},"content_sha256":"b8cc0d34d37cb74f12148fbd9e6f67fd257d5da5ae4c4601188502aa015277c3","schema_version":"1.0","event_id":"sha256:b8cc0d34d37cb74f12148fbd9e6f67fd257d5da5ae4c4601188502aa015277c3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:BKTZIHHV2MQGGBML6J3LPXBOJ4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A tunable plasma-based energy dechirper","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.acc-ph"],"primary_cat":"physics.plasm-ph","authors_text":"A. Aschikhin, A. Knetsch, A. Martinez de la Ossa, B. Schmidt, B. Sheeran, C. Behrens, C. Palmer, G. Tauscher, J.-H. Roeckemann, J. Osterhoff, J.-P. Schwinkendorf, K. Poder, L. Goldberg, L. Schaper, M.J. Garland, M.J.V. Streeter, M. Meisel, P. Gonzalez, P. Niknejadi, R. D'Arcy, S. Bohlen, S. Schroeder, S. Wesch, T.J. Mehrling, V. Libov, V. Wacker","submitted_at":"2018-10-15T12:37:14Z","abstract_excerpt":"A tunable plasma-based energy dechirper has been developed at FLASHForward to remove the correlated energy spread of a 681~MeV electron bunch. Through the interaction of the bunch with wakefields excited in plasma the projected energy spread was reduced from a FWHM of 1.31$\\%$ to 0.33$\\%$ without reducing the stability of the incoming beam. The experimental results for variable plasma density are in good agreement with analytic predictions and three-dimensional simulations. The proof-of-principle dechirping strength of $1.8$~GeV/mm/m significantly exceeds those demonstrated for competing state"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.06307","kind":"arxiv","version":3},"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":"2026-05-17T23:55:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FmY7P3GN3BCVlh6Wh4QjHzPYeHo8j+h1hiO9Nlsaz1d7aYIfSjaf0JVCVfuD5NjkxkWs4XuNfa37PTtUozYcDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T08:59:57.944086Z"},"content_sha256":"b3f5a1c6b691dc5217afe3154bc0c5fde71fddf95fa1e6e6d10502e878281bce","schema_version":"1.0","event_id":"sha256:b3f5a1c6b691dc5217afe3154bc0c5fde71fddf95fa1e6e6d10502e878281bce"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BKTZIHHV2MQGGBML6J3LPXBOJ4/bundle.json","state_url":"https://pith.science/pith/BKTZIHHV2MQGGBML6J3LPXBOJ4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BKTZIHHV2MQGGBML6J3LPXBOJ4/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":"2026-05-30T08:59:57Z","links":{"resolver":"https://pith.science/pith/BKTZIHHV2MQGGBML6J3LPXBOJ4","bundle":"https://pith.science/pith/BKTZIHHV2MQGGBML6J3LPXBOJ4/bundle.json","state":"https://pith.science/pith/BKTZIHHV2MQGGBML6J3LPXBOJ4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BKTZIHHV2MQGGBML6J3LPXBOJ4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:BKTZIHHV2MQGGBML6J3LPXBOJ4","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":"e8386cb03355c9100449c2480fdc866db6b815aa02f11f0352294769dc022e04","cross_cats_sorted":["physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-10-15T12:37:14Z","title_canon_sha256":"9c4800dc411e6856f9c303ca5c1379ac1e0c5e2fc74596171d495a58a5d65e7a"},"schema_version":"1.0","source":{"id":"1810.06307","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.06307","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"arxiv_version","alias_value":"1810.06307v3","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.06307","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"pith_short_12","alias_value":"BKTZIHHV2MQG","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BKTZIHHV2MQGGBML","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BKTZIHHV","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:b3f5a1c6b691dc5217afe3154bc0c5fde71fddf95fa1e6e6d10502e878281bce","target":"graph","created_at":"2026-05-17T23:55:38Z","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 tunable plasma-based energy dechirper has been developed at FLASHForward to remove the correlated energy spread of a 681~MeV electron bunch. Through the interaction of the bunch with wakefields excited in plasma the projected energy spread was reduced from a FWHM of 1.31$\\%$ to 0.33$\\%$ without reducing the stability of the incoming beam. The experimental results for variable plasma density are in good agreement with analytic predictions and three-dimensional simulations. The proof-of-principle dechirping strength of $1.8$~GeV/mm/m significantly exceeds those demonstrated for competing state","authors_text":"A. Aschikhin, A. Knetsch, A. Martinez de la Ossa, B. Schmidt, B. Sheeran, C. Behrens, C. Palmer, G. Tauscher, J.-H. Roeckemann, J. Osterhoff, J.-P. Schwinkendorf, K. Poder, L. Goldberg, L. Schaper, M.J. Garland, M.J.V. Streeter, M. Meisel, P. Gonzalez, P. Niknejadi, R. D'Arcy, S. Bohlen, S. Schroeder, S. Wesch, T.J. Mehrling, V. Libov, V. Wacker","cross_cats":["physics.acc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-10-15T12:37:14Z","title":"A tunable plasma-based energy dechirper"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.06307","kind":"arxiv","version":3},"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:b8cc0d34d37cb74f12148fbd9e6f67fd257d5da5ae4c4601188502aa015277c3","target":"record","created_at":"2026-05-17T23:55:38Z","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":"e8386cb03355c9100449c2480fdc866db6b815aa02f11f0352294769dc022e04","cross_cats_sorted":["physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-10-15T12:37:14Z","title_canon_sha256":"9c4800dc411e6856f9c303ca5c1379ac1e0c5e2fc74596171d495a58a5d65e7a"},"schema_version":"1.0","source":{"id":"1810.06307","kind":"arxiv","version":3}},"canonical_sha256":"0aa7941cf5d32063058bf276b7dc2e4f3006bd852a98fe434b1d3c31c2466c3a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0aa7941cf5d32063058bf276b7dc2e4f3006bd852a98fe434b1d3c31c2466c3a","first_computed_at":"2026-05-17T23:55:38.348622Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:38.348622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hG2M/mjzFBjT9GN05YZFBcKEOeebNUfWiZ/aQpzkILkQTS8fFclWZdZnUBB3kPhz+/AonJRxSbk0GwUMsQXEDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:38.349030Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.06307","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b8cc0d34d37cb74f12148fbd9e6f67fd257d5da5ae4c4601188502aa015277c3","sha256:b3f5a1c6b691dc5217afe3154bc0c5fde71fddf95fa1e6e6d10502e878281bce"],"state_sha256":"ff94c0904ae698daac85c8ff38d3f0f7a6ad813736b9f57face4f2f4ce22e6a0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f5J5UbehSAlu1kDX29UVA9LWxTJK5IJzfKlXdeyQVsxHFiSrjGivmfkCsM5n2Oo+lLjiuwBnt8cm1Pxfwnr2Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T08:59:57.947059Z","bundle_sha256":"bb99f270c193814ed3c4f21045772af5304d643fddd455d802fd75353a30f63a"}}