{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:BGIZTSDZH3SZ2GQ3ZXHAMVWQO3","short_pith_number":"pith:BGIZTSDZ","canonical_record":{"source":{"id":"2106.07367","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2021-06-14T12:39:33Z","cross_cats_sorted":[],"title_canon_sha256":"8aeb94a2bdc9317cb6d684412a4d12ec2562cb135bd820525e4dae014012eb50","abstract_canon_sha256":"ea536f214b410d4bde092e34a583334a8f36053a379a1eb7250d979274d47e56"},"schema_version":"1.0"},"canonical_sha256":"099199c8793ee59d1a1bcdce0656d076ec96a7c9cb9480d498394471f917d671","source":{"kind":"arxiv","id":"2106.07367","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.07367","created_at":"2026-07-05T02:56:58Z"},{"alias_kind":"arxiv_version","alias_value":"2106.07367v2","created_at":"2026-07-05T02:56:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.07367","created_at":"2026-07-05T02:56:58Z"},{"alias_kind":"pith_short_12","alias_value":"BGIZTSDZH3SZ","created_at":"2026-07-05T02:56:58Z"},{"alias_kind":"pith_short_16","alias_value":"BGIZTSDZH3SZ2GQ3","created_at":"2026-07-05T02:56:58Z"},{"alias_kind":"pith_short_8","alias_value":"BGIZTSDZ","created_at":"2026-07-05T02:56:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:BGIZTSDZH3SZ2GQ3ZXHAMVWQO3","target":"record","payload":{"canonical_record":{"source":{"id":"2106.07367","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2021-06-14T12:39:33Z","cross_cats_sorted":[],"title_canon_sha256":"8aeb94a2bdc9317cb6d684412a4d12ec2562cb135bd820525e4dae014012eb50","abstract_canon_sha256":"ea536f214b410d4bde092e34a583334a8f36053a379a1eb7250d979274d47e56"},"schema_version":"1.0"},"canonical_sha256":"099199c8793ee59d1a1bcdce0656d076ec96a7c9cb9480d498394471f917d671","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:56:58.631104Z","signature_b64":"HSHD6rw1wlyXcpL5vOtFU21LJPuG5sRtFT0ZG1dWfyVM641PGXSPuBdDsx1Jlb4wwZDWpdTlKkslinj3h48KCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"099199c8793ee59d1a1bcdce0656d076ec96a7c9cb9480d498394471f917d671","last_reissued_at":"2026-07-05T02:56:58.630628Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:56:58.630628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.07367","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:56:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z1kfFmiajhhqBu8iDuRUPKYFD6gfAN/yzcTgErSM1b6KMHGBZyRAhziDu66hi2wVaYXqpgNdJomwzatBvQC4Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T10:35:20.004017Z"},"content_sha256":"cbba6bf898b7331a396a2b958309e4d58f0e38ff9304be77437aace06b8aca3c","schema_version":"1.0","event_id":"sha256:cbba6bf898b7331a396a2b958309e4d58f0e38ff9304be77437aace06b8aca3c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:BGIZTSDZH3SZ2GQ3ZXHAMVWQO3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Design of a prototype laser-plasma injector for the DESY-II synchrotron","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"A. Ferran Pousa, A. Martinez de la Ossa, A. R. Maier, I. Agapov, J. Osterhoff, L. Jeppe, M. Kirchen, M. Th\\'evenet, P. Winkler, R. Brinkmann, S. A. Antipov, S. Jalas, W. P. Leemans","submitted_at":"2021-06-14T12:39:33Z","abstract_excerpt":"The present state of progress in laser wakefield acceleration encourages considering it as a practical alternative to conventional particle accelerators. A promising application would be to use a laser-plasma accelerator as an injector for a synchrotron light source. Yet, the energy spread and jitter of the laser-plasma beam pose a significant difficulty for an efficient injection. In this paper we propose a design of a prototype injector to deliver 500 MeV low-intensity electron bunches to the DESY-II electron synchrotron. The design utilizes presently available conventional accelerator techn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.07367","kind":"arxiv","version":2},"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/2106.07367/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":"2026-07-05T02:56:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s1mk0MM2iQ7k7BZN6lUg48uRytWcwNCMDuXai3aHXP4qzmSbEEetkJ1UTqKaQYbKiz452V4kRwElOVudTuLqCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T10:35:20.004421Z"},"content_sha256":"740ab999f9356105553b14debd259eb24ff5ad02b8841e749a00143f1abbd3f4","schema_version":"1.0","event_id":"sha256:740ab999f9356105553b14debd259eb24ff5ad02b8841e749a00143f1abbd3f4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BGIZTSDZH3SZ2GQ3ZXHAMVWQO3/bundle.json","state_url":"https://pith.science/pith/BGIZTSDZH3SZ2GQ3ZXHAMVWQO3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BGIZTSDZH3SZ2GQ3ZXHAMVWQO3/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":"2026-07-05T10:35:20Z","links":{"resolver":"https://pith.science/pith/BGIZTSDZH3SZ2GQ3ZXHAMVWQO3","bundle":"https://pith.science/pith/BGIZTSDZH3SZ2GQ3ZXHAMVWQO3/bundle.json","state":"https://pith.science/pith/BGIZTSDZH3SZ2GQ3ZXHAMVWQO3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BGIZTSDZH3SZ2GQ3ZXHAMVWQO3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:BGIZTSDZH3SZ2GQ3ZXHAMVWQO3","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":"ea536f214b410d4bde092e34a583334a8f36053a379a1eb7250d979274d47e56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2021-06-14T12:39:33Z","title_canon_sha256":"8aeb94a2bdc9317cb6d684412a4d12ec2562cb135bd820525e4dae014012eb50"},"schema_version":"1.0","source":{"id":"2106.07367","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.07367","created_at":"2026-07-05T02:56:58Z"},{"alias_kind":"arxiv_version","alias_value":"2106.07367v2","created_at":"2026-07-05T02:56:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.07367","created_at":"2026-07-05T02:56:58Z"},{"alias_kind":"pith_short_12","alias_value":"BGIZTSDZH3SZ","created_at":"2026-07-05T02:56:58Z"},{"alias_kind":"pith_short_16","alias_value":"BGIZTSDZH3SZ2GQ3","created_at":"2026-07-05T02:56:58Z"},{"alias_kind":"pith_short_8","alias_value":"BGIZTSDZ","created_at":"2026-07-05T02:56:58Z"}],"graph_snapshots":[{"event_id":"sha256:740ab999f9356105553b14debd259eb24ff5ad02b8841e749a00143f1abbd3f4","target":"graph","created_at":"2026-07-05T02:56:58Z","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/2106.07367/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The present state of progress in laser wakefield acceleration encourages considering it as a practical alternative to conventional particle accelerators. A promising application would be to use a laser-plasma accelerator as an injector for a synchrotron light source. Yet, the energy spread and jitter of the laser-plasma beam pose a significant difficulty for an efficient injection. In this paper we propose a design of a prototype injector to deliver 500 MeV low-intensity electron bunches to the DESY-II electron synchrotron. The design utilizes presently available conventional accelerator techn","authors_text":"A. Ferran Pousa, A. Martinez de la Ossa, A. R. Maier, I. Agapov, J. Osterhoff, L. Jeppe, M. Kirchen, M. Th\\'evenet, P. Winkler, R. Brinkmann, S. A. Antipov, S. Jalas, W. P. Leemans","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2021-06-14T12:39:33Z","title":"Design of a prototype laser-plasma injector for the DESY-II synchrotron"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.07367","kind":"arxiv","version":2},"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:cbba6bf898b7331a396a2b958309e4d58f0e38ff9304be77437aace06b8aca3c","target":"record","created_at":"2026-07-05T02:56:58Z","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":"ea536f214b410d4bde092e34a583334a8f36053a379a1eb7250d979274d47e56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2021-06-14T12:39:33Z","title_canon_sha256":"8aeb94a2bdc9317cb6d684412a4d12ec2562cb135bd820525e4dae014012eb50"},"schema_version":"1.0","source":{"id":"2106.07367","kind":"arxiv","version":2}},"canonical_sha256":"099199c8793ee59d1a1bcdce0656d076ec96a7c9cb9480d498394471f917d671","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"099199c8793ee59d1a1bcdce0656d076ec96a7c9cb9480d498394471f917d671","first_computed_at":"2026-07-05T02:56:58.630628Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:56:58.630628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HSHD6rw1wlyXcpL5vOtFU21LJPuG5sRtFT0ZG1dWfyVM641PGXSPuBdDsx1Jlb4wwZDWpdTlKkslinj3h48KCA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:56:58.631104Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.07367","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cbba6bf898b7331a396a2b958309e4d58f0e38ff9304be77437aace06b8aca3c","sha256:740ab999f9356105553b14debd259eb24ff5ad02b8841e749a00143f1abbd3f4"],"state_sha256":"48e65aaefef89963fcae2b4f05fcf4b44493bec3ef548cfafd489395beb2ad58"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PC3fqNd6ao2sGqIgNF+si9km0l9aCa6mDmVwmN02PTd43DtVjL4Es8CGm5nu0pT7BSHcoMzxYD8qN7DEUJUoAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T10:35:20.006366Z","bundle_sha256":"8a35dfb2dbad150476bcd21ebe5f74601b5a60ccd3e1ab41a84abc22cb11b685"}}