{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:FFPRVF6KDTEUNYJJ7QR4AS6D5B","short_pith_number":"pith:FFPRVF6K","canonical_record":{"source":{"id":"2505.11171","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-05-16T12:15:55Z","cross_cats_sorted":[],"title_canon_sha256":"2bc5c2f17e6845a8caf58070ea35fd8499cb053546a0d75284f2f815bc059b0c","abstract_canon_sha256":"a873a50f148b4982cf98218385d4a0468b520214bf283bdeeedc4e7ef9718e51"},"schema_version":"1.0"},"canonical_sha256":"295f1a97ca1cc946e129fc23c04bc3e86b70e8d31e5609a786047c800ed6f151","source":{"kind":"arxiv","id":"2505.11171","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.11171","created_at":"2026-05-21T01:04:13Z"},{"alias_kind":"arxiv_version","alias_value":"2505.11171v1","created_at":"2026-05-21T01:04:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.11171","created_at":"2026-05-21T01:04:13Z"},{"alias_kind":"pith_short_12","alias_value":"FFPRVF6KDTEU","created_at":"2026-05-21T01:04:13Z"},{"alias_kind":"pith_short_16","alias_value":"FFPRVF6KDTEUNYJJ","created_at":"2026-05-21T01:04:13Z"},{"alias_kind":"pith_short_8","alias_value":"FFPRVF6K","created_at":"2026-05-21T01:04:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:FFPRVF6KDTEUNYJJ7QR4AS6D5B","target":"record","payload":{"canonical_record":{"source":{"id":"2505.11171","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-05-16T12:15:55Z","cross_cats_sorted":[],"title_canon_sha256":"2bc5c2f17e6845a8caf58070ea35fd8499cb053546a0d75284f2f815bc059b0c","abstract_canon_sha256":"a873a50f148b4982cf98218385d4a0468b520214bf283bdeeedc4e7ef9718e51"},"schema_version":"1.0"},"canonical_sha256":"295f1a97ca1cc946e129fc23c04bc3e86b70e8d31e5609a786047c800ed6f151","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-21T01:04:13.954128Z","signature_b64":"ficGI7GX7RZGC7RijmeiHhVQwYdOMO/H9iQltZvuRX3ZQKZxV1K16J19Ofj469ScJuQWNTnlgA3+aydnDODjBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"295f1a97ca1cc946e129fc23c04bc3e86b70e8d31e5609a786047c800ed6f151","last_reissued_at":"2026-05-21T01:04:13.953472Z","signature_status":"signed_v1","first_computed_at":"2026-05-21T01:04:13.953472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.11171","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":"2026-05-21T01:04:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MADuKadR/7vLTyt6GSRy7NkfgkHstw+pItsfA94N0fblqpS/dtZ817diyZnJYbGavfoGIBernzp+0L6DrDH7Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T20:13:52.072207Z"},"content_sha256":"2595431f47e8b597d6d4df2d6f50246be182c6db38b11d3c1c29683880db33a1","schema_version":"1.0","event_id":"sha256:2595431f47e8b597d6d4df2d6f50246be182c6db38b11d3c1c29683880db33a1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:FFPRVF6KDTEUNYJJ7QR4AS6D5B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Development of an achromatic spectrometer for a laser-wakefield-accelerator experiment","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"C. A. Lindstr{\\o}m, D. Kalvik, E. Adli, F. Pe\\~na, K. N. Sjobak, P. Drobniak","submitted_at":"2025-05-16T12:15:55Z","abstract_excerpt":"The large gradients of plasma-wakefield accelerators promise to shorten accelerators and reduce their financial and environmental costs. For such accelerators, a key challenge is the transport of beams with high divergence and energy spread. Achromatic optics is a potential solution that would allow staging of plasma accelerators without beam-quality degradation. For this, a nonlinear plasma lens is being developed within the SPARTA project. As a first application of this lens, we aim to implement an achromatic spectrometer for electron bunches produced by a laser-wakefield accelerator. This w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.11171","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/2505.11171/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":"2026-05-21T01:04:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JJgOIMy8ShGj3PYjfPV4E0ENGhx0b0P+5oR+tnA2lMukghuV9pMRO8eZtMJ7eQsI+atHMf7wnffijmq1iYHhDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T20:13:52.072974Z"},"content_sha256":"538b1ec6f7eab5a740073a75f1f02eed2f5a0ee744a3297f3556a530c8da9227","schema_version":"1.0","event_id":"sha256:538b1ec6f7eab5a740073a75f1f02eed2f5a0ee744a3297f3556a530c8da9227"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FFPRVF6KDTEUNYJJ7QR4AS6D5B/bundle.json","state_url":"https://pith.science/pith/FFPRVF6KDTEUNYJJ7QR4AS6D5B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FFPRVF6KDTEUNYJJ7QR4AS6D5B/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":"2026-06-08T20:13:52Z","links":{"resolver":"https://pith.science/pith/FFPRVF6KDTEUNYJJ7QR4AS6D5B","bundle":"https://pith.science/pith/FFPRVF6KDTEUNYJJ7QR4AS6D5B/bundle.json","state":"https://pith.science/pith/FFPRVF6KDTEUNYJJ7QR4AS6D5B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FFPRVF6KDTEUNYJJ7QR4AS6D5B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:FFPRVF6KDTEUNYJJ7QR4AS6D5B","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":"a873a50f148b4982cf98218385d4a0468b520214bf283bdeeedc4e7ef9718e51","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-05-16T12:15:55Z","title_canon_sha256":"2bc5c2f17e6845a8caf58070ea35fd8499cb053546a0d75284f2f815bc059b0c"},"schema_version":"1.0","source":{"id":"2505.11171","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.11171","created_at":"2026-05-21T01:04:13Z"},{"alias_kind":"arxiv_version","alias_value":"2505.11171v1","created_at":"2026-05-21T01:04:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.11171","created_at":"2026-05-21T01:04:13Z"},{"alias_kind":"pith_short_12","alias_value":"FFPRVF6KDTEU","created_at":"2026-05-21T01:04:13Z"},{"alias_kind":"pith_short_16","alias_value":"FFPRVF6KDTEUNYJJ","created_at":"2026-05-21T01:04:13Z"},{"alias_kind":"pith_short_8","alias_value":"FFPRVF6K","created_at":"2026-05-21T01:04:13Z"}],"graph_snapshots":[{"event_id":"sha256:538b1ec6f7eab5a740073a75f1f02eed2f5a0ee744a3297f3556a530c8da9227","target":"graph","created_at":"2026-05-21T01:04:13Z","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/2505.11171/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The large gradients of plasma-wakefield accelerators promise to shorten accelerators and reduce their financial and environmental costs. For such accelerators, a key challenge is the transport of beams with high divergence and energy spread. Achromatic optics is a potential solution that would allow staging of plasma accelerators without beam-quality degradation. For this, a nonlinear plasma lens is being developed within the SPARTA project. As a first application of this lens, we aim to implement an achromatic spectrometer for electron bunches produced by a laser-wakefield accelerator. This w","authors_text":"C. A. Lindstr{\\o}m, D. Kalvik, E. Adli, F. Pe\\~na, K. N. Sjobak, P. Drobniak","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-05-16T12:15:55Z","title":"Development of an achromatic spectrometer for a laser-wakefield-accelerator experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.11171","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":"sha256:2595431f47e8b597d6d4df2d6f50246be182c6db38b11d3c1c29683880db33a1","target":"record","created_at":"2026-05-21T01:04:13Z","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":"a873a50f148b4982cf98218385d4a0468b520214bf283bdeeedc4e7ef9718e51","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2025-05-16T12:15:55Z","title_canon_sha256":"2bc5c2f17e6845a8caf58070ea35fd8499cb053546a0d75284f2f815bc059b0c"},"schema_version":"1.0","source":{"id":"2505.11171","kind":"arxiv","version":1}},"canonical_sha256":"295f1a97ca1cc946e129fc23c04bc3e86b70e8d31e5609a786047c800ed6f151","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"295f1a97ca1cc946e129fc23c04bc3e86b70e8d31e5609a786047c800ed6f151","first_computed_at":"2026-05-21T01:04:13.953472Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-21T01:04:13.953472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ficGI7GX7RZGC7RijmeiHhVQwYdOMO/H9iQltZvuRX3ZQKZxV1K16J19Ofj469ScJuQWNTnlgA3+aydnDODjBw==","signature_status":"signed_v1","signed_at":"2026-05-21T01:04:13.954128Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.11171","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2595431f47e8b597d6d4df2d6f50246be182c6db38b11d3c1c29683880db33a1","sha256:538b1ec6f7eab5a740073a75f1f02eed2f5a0ee744a3297f3556a530c8da9227"],"state_sha256":"c79f328a502e2de307285c7f0017ca548541819000383a05ecd348b308cee45c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mBxzKjPoQMExlTzcdiUkyN5ucuywVQFumdAeINm1DNnWmAETE/Ngd1JZYQ7qtxn8W+fgHVM0e1svsr++s8dbBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T20:13:52.076908Z","bundle_sha256":"ecadb4ec16a94b44dc7284d81a44eade10670b00f2bc035f03f06e5d0c36c86f"}}