{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:52MDQDK55FNHY2ZW2DVP3OBY27","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":"b8a6eb0a6e16f50d5d5f1526373b20a3be494f6a6bb3dd6b19d193255bf449d3","cross_cats_sorted":["nucl-ex","physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-07-16T09:58:44Z","title_canon_sha256":"5b8dc216a7910b7863bbbfaccc2ec7a05790fbb4ba28ddb44df21dd2b07fb135"},"schema_version":"1.0","source":{"id":"1507.04511","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.04511","created_at":"2026-05-18T01:36:47Z"},{"alias_kind":"arxiv_version","alias_value":"1507.04511v1","created_at":"2026-05-18T01:36:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.04511","created_at":"2026-05-18T01:36:47Z"},{"alias_kind":"pith_short_12","alias_value":"52MDQDK55FNH","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"52MDQDK55FNHY2ZW","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"52MDQDK5","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:d582a1dec68c89442611b014ee9742d13813a84563ce3c5fc12c318d53597f72","target":"graph","created_at":"2026-05-18T01:36:47Z","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":"We report on the experimental observation of beam-like neutron emission with peak flux of the order of 10^9 n/sr, from light nuclei reactions in a pitcher-catcher scenario, by employing MeV ions driven by high power laser. The spatial profile of the neutron beam, fully captured for the first time by employing a CR39 nuclear track detector, shows a FWHM divergence angle of 70 degrees, with a peak flux nearly an order of magnitude higher than the isotropic component elsewhere. The observed beamed flux of neutrons is highly favourable for a wide range of applications, and indeed for further trans","authors_text":"A. Alejo, A. Green, A.P.L. Robinson, C. Peth, D. Doria, D. Neely, H. Ahmed, H. Powell, J.A. Ruiz, J. Fernandez, J. Swain, K. Naughton, M. Borghesi, M. Cerchez, O. Willi, P. McKenna, P. Norreys, R. Clarke, S. Dorkings, S. Kar, S.R. Mirfyazi","cross_cats":["nucl-ex","physics.acc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-07-16T09:58:44Z","title":"Beamed neutron emission driven by laser accelerated light ions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.04511","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":"sha256:132f8ef140671f2190a33f32afa061e306fe26341eaaf0fb2b5404ce7dfa7aec","target":"record","created_at":"2026-05-18T01:36:47Z","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":"b8a6eb0a6e16f50d5d5f1526373b20a3be494f6a6bb3dd6b19d193255bf449d3","cross_cats_sorted":["nucl-ex","physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-07-16T09:58:44Z","title_canon_sha256":"5b8dc216a7910b7863bbbfaccc2ec7a05790fbb4ba28ddb44df21dd2b07fb135"},"schema_version":"1.0","source":{"id":"1507.04511","kind":"arxiv","version":1}},"canonical_sha256":"ee98380d5de95a7c6b36d0eafdb838d7dc71a70f968183496f404d621eb39067","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ee98380d5de95a7c6b36d0eafdb838d7dc71a70f968183496f404d621eb39067","first_computed_at":"2026-05-18T01:36:47.147867Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:47.147867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"35vX1/IHayW3dOoUVi/HiQ2R+U/DLZwanWldxF9wW+bgesTYwDGPtCZwEUuCdV6wFcmKdXqev9QPBTFmjmb0BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:47.148588Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.04511","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:132f8ef140671f2190a33f32afa061e306fe26341eaaf0fb2b5404ce7dfa7aec","sha256:d582a1dec68c89442611b014ee9742d13813a84563ce3c5fc12c318d53597f72"],"state_sha256":"bfac4476dbec9cf3dbf58fe1f673880de61c41ed3171ca6b45bc8087e8b8b106"}