{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:EIZIQM6G6M5UJHJPRNS2D4JN7I","short_pith_number":"pith:EIZIQM6G","canonical_record":{"source":{"id":"2506.20026","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2025-06-24T21:50:00Z","cross_cats_sorted":["physics.plasm-ph"],"title_canon_sha256":"40d6685257d02aeaf2494e81a6459d7bb078e451d662910b0df4a2e4bf1f7a50","abstract_canon_sha256":"9ead64eb46e916cf67ef8ae8eed4feedf003e9c1ddca41ca69e342039f7e2c07"},"schema_version":"1.0"},"canonical_sha256":"22328833c6f33b449d2f8b65a1f12dfa175177401d06123e04d996ac6b6ae2ec","source":{"kind":"arxiv","id":"2506.20026","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.20026","created_at":"2026-07-05T11:26:59Z"},{"alias_kind":"arxiv_version","alias_value":"2506.20026v1","created_at":"2026-07-05T11:26:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.20026","created_at":"2026-07-05T11:26:59Z"},{"alias_kind":"pith_short_12","alias_value":"EIZIQM6G6M5U","created_at":"2026-07-05T11:26:59Z"},{"alias_kind":"pith_short_16","alias_value":"EIZIQM6G6M5UJHJP","created_at":"2026-07-05T11:26:59Z"},{"alias_kind":"pith_short_8","alias_value":"EIZIQM6G","created_at":"2026-07-05T11:26:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:EIZIQM6G6M5UJHJPRNS2D4JN7I","target":"record","payload":{"canonical_record":{"source":{"id":"2506.20026","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2025-06-24T21:50:00Z","cross_cats_sorted":["physics.plasm-ph"],"title_canon_sha256":"40d6685257d02aeaf2494e81a6459d7bb078e451d662910b0df4a2e4bf1f7a50","abstract_canon_sha256":"9ead64eb46e916cf67ef8ae8eed4feedf003e9c1ddca41ca69e342039f7e2c07"},"schema_version":"1.0"},"canonical_sha256":"22328833c6f33b449d2f8b65a1f12dfa175177401d06123e04d996ac6b6ae2ec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:26:59.172161Z","signature_b64":"DeyuV0MaokF/KUh5GgZZ8Ez8K8JQDSF3/hCQvIRwTWK+YQS8EAZFPW3NxOR8qM6BZn9MGSSSAQugFzsCKy/uAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"22328833c6f33b449d2f8b65a1f12dfa175177401d06123e04d996ac6b6ae2ec","last_reissued_at":"2026-07-05T11:26:59.171663Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:26:59.171663Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.20026","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":"2026-07-05T11:26:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fD8/epd9ZvOkBW6W7/h7CUmoJDaZFU/3gXh30CdtLiqjuwBJTdqcie8ljBQ3emjQ9DvBcmzu5jUU8wm4qq5uCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:10:53.445686Z"},"content_sha256":"973400bbb8b4de468d0c76b007c47ca7ef6f49059d1246143d9ab2e774ca99a1","schema_version":"1.0","event_id":"sha256:973400bbb8b4de468d0c76b007c47ca7ef6f49059d1246143d9ab2e774ca99a1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:EIZIQM6G6M5UJHJPRNS2D4JN7I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Single-event neutron time-of-flight spectroscopy with a petawatt-laser-driven neutron source","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.plasm-ph"],"primary_cat":"nucl-ex","authors_text":"A. Alejo, A. R. Junghans, B. Fern\\'andez, C. Guerrero, C. R\\\"odel, C. Weiss, E. Griesmayer, F. Kroll, I. Prencipe, J. Benlliure, J. Kohl, J. Metzkes-Ng, J. M. Quesada, K. Zeil, M. A. Mill\\'an-Callado, M. Rehwald, M. Roth, R. Beyer, R. Stefanikova, S. Scheuren, S. Urlass, T. E. Cowan, T. Rodr\\'iguez-Gonz\\'alez, T. Ziegler, U. Schramm","submitted_at":"2025-06-24T21:50:00Z","abstract_excerpt":"Fast neutron-induced nuclear reactions are crucial for advancing our understanding of fundamental nuclear processes, stellar nucleosynthesis, and applications, including reactor safety, medical isotope production, and materials research. With many research reactors being phased out, compact accelerator-based neutron sources are becoming increasingly important. Laser-driven neutron sources (LDNSs) offer unique advantages -- ultrashort neutron pulsees for superior energy resolution, high per-pulse flux, and a drastically reduced footprint. However, their use in single-event fast neutron spectros"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.20026","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/2506.20026/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":"2026-07-05T11:26:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FL1Qr9V3OoeCPNyB0n52leetEtOS/uflKExxnWqRP4UJ16cMwqa5Bk0gR3Ve5b4pdS658PYDdFuJhfKxCgvuDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:10:53.445999Z"},"content_sha256":"4cc464b2f24d652dac4e678f39368f989fd6ef88573a75de3846ab812911f4e8","schema_version":"1.0","event_id":"sha256:4cc464b2f24d652dac4e678f39368f989fd6ef88573a75de3846ab812911f4e8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EIZIQM6G6M5UJHJPRNS2D4JN7I/bundle.json","state_url":"https://pith.science/pith/EIZIQM6G6M5UJHJPRNS2D4JN7I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EIZIQM6G6M5UJHJPRNS2D4JN7I/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":"2026-08-13T23:10:53Z","links":{"resolver":"https://pith.science/pith/EIZIQM6G6M5UJHJPRNS2D4JN7I","bundle":"https://pith.science/pith/EIZIQM6G6M5UJHJPRNS2D4JN7I/bundle.json","state":"https://pith.science/pith/EIZIQM6G6M5UJHJPRNS2D4JN7I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EIZIQM6G6M5UJHJPRNS2D4JN7I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:EIZIQM6G6M5UJHJPRNS2D4JN7I","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":"9ead64eb46e916cf67ef8ae8eed4feedf003e9c1ddca41ca69e342039f7e2c07","cross_cats_sorted":["physics.plasm-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2025-06-24T21:50:00Z","title_canon_sha256":"40d6685257d02aeaf2494e81a6459d7bb078e451d662910b0df4a2e4bf1f7a50"},"schema_version":"1.0","source":{"id":"2506.20026","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.20026","created_at":"2026-07-05T11:26:59Z"},{"alias_kind":"arxiv_version","alias_value":"2506.20026v1","created_at":"2026-07-05T11:26:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.20026","created_at":"2026-07-05T11:26:59Z"},{"alias_kind":"pith_short_12","alias_value":"EIZIQM6G6M5U","created_at":"2026-07-05T11:26:59Z"},{"alias_kind":"pith_short_16","alias_value":"EIZIQM6G6M5UJHJP","created_at":"2026-07-05T11:26:59Z"},{"alias_kind":"pith_short_8","alias_value":"EIZIQM6G","created_at":"2026-07-05T11:26:59Z"}],"graph_snapshots":[{"event_id":"sha256:4cc464b2f24d652dac4e678f39368f989fd6ef88573a75de3846ab812911f4e8","target":"graph","created_at":"2026-07-05T11:26:59Z","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/2506.20026/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Fast neutron-induced nuclear reactions are crucial for advancing our understanding of fundamental nuclear processes, stellar nucleosynthesis, and applications, including reactor safety, medical isotope production, and materials research. With many research reactors being phased out, compact accelerator-based neutron sources are becoming increasingly important. Laser-driven neutron sources (LDNSs) offer unique advantages -- ultrashort neutron pulsees for superior energy resolution, high per-pulse flux, and a drastically reduced footprint. However, their use in single-event fast neutron spectros","authors_text":"A. Alejo, A. R. Junghans, B. Fern\\'andez, C. Guerrero, C. R\\\"odel, C. Weiss, E. Griesmayer, F. Kroll, I. Prencipe, J. Benlliure, J. Kohl, J. Metzkes-Ng, J. M. Quesada, K. Zeil, M. A. Mill\\'an-Callado, M. Rehwald, M. Roth, R. Beyer, R. Stefanikova, S. Scheuren, S. Urlass, T. E. Cowan, T. Rodr\\'iguez-Gonz\\'alez, T. Ziegler, U. Schramm","cross_cats":["physics.plasm-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2025-06-24T21:50:00Z","title":"Single-event neutron time-of-flight spectroscopy with a petawatt-laser-driven neutron source"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.20026","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":"sha256:973400bbb8b4de468d0c76b007c47ca7ef6f49059d1246143d9ab2e774ca99a1","target":"record","created_at":"2026-07-05T11:26:59Z","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":"9ead64eb46e916cf67ef8ae8eed4feedf003e9c1ddca41ca69e342039f7e2c07","cross_cats_sorted":["physics.plasm-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2025-06-24T21:50:00Z","title_canon_sha256":"40d6685257d02aeaf2494e81a6459d7bb078e451d662910b0df4a2e4bf1f7a50"},"schema_version":"1.0","source":{"id":"2506.20026","kind":"arxiv","version":1}},"canonical_sha256":"22328833c6f33b449d2f8b65a1f12dfa175177401d06123e04d996ac6b6ae2ec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"22328833c6f33b449d2f8b65a1f12dfa175177401d06123e04d996ac6b6ae2ec","first_computed_at":"2026-07-05T11:26:59.171663Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:26:59.171663Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DeyuV0MaokF/KUh5GgZZ8Ez8K8JQDSF3/hCQvIRwTWK+YQS8EAZFPW3NxOR8qM6BZn9MGSSSAQugFzsCKy/uAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:26:59.172161Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.20026","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:973400bbb8b4de468d0c76b007c47ca7ef6f49059d1246143d9ab2e774ca99a1","sha256:4cc464b2f24d652dac4e678f39368f989fd6ef88573a75de3846ab812911f4e8"],"state_sha256":"ee27c3e77d491aa5d4148e148a58664b1c38c748b613459afee00bc7941e1497"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aQlPByqAC0T/MHOHsMxXPj0GMOoS3DGOG/TwQaqbpgAOWZGXQyAUzI5h6YOXwSJPahRl2NHj1SPeTLsdHjJ2CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T23:10:53.480683Z","bundle_sha256":"5583d5a09e135ce1ea065d7f9d291191ce3a0255d3bf872c1e06c8cf6cf68ecd"}}