{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:PDLC5GXP7ND67AMECZHPAVVTQ4","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":"74c1686189b23239a3e687b9c307381945663efed26904a7cabe567c489280b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2011-04-07T09:59:56Z","title_canon_sha256":"fd8c2622e929993087e8e86a02be84a54ba7737404a088e20620799448e8f213"},"schema_version":"1.0","source":{"id":"1104.1289","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.1289","created_at":"2026-05-18T04:17:24Z"},{"alias_kind":"arxiv_version","alias_value":"1104.1289v1","created_at":"2026-05-18T04:17:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.1289","created_at":"2026-05-18T04:17:24Z"},{"alias_kind":"pith_short_12","alias_value":"PDLC5GXP7ND6","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PDLC5GXP7ND67AME","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PDLC5GXP","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:62096120e614173b23533a15168833ab039d411ed46bcdf58785574d53d96233","target":"graph","created_at":"2026-05-18T04:17:24Z","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 silicon particle-telescope system for light-ion nuclear reactions is described. In particular, the system is designed to be optimized for level density and gamma-ray strength function measurements with the so-called Oslo method. Eight trapezoidal modules are mounted at 5 cm distance from the target, covering 8 forward angles between theta = 40 and 54 degrees. The thin front dE detectors (130 micrometer) are segmented into eight pads, determining the reaction angle for the outgoing charged ejectile. Guard rings on the thick back E detectors (1550 micrometer) guarantee low leakage current at h","authors_text":"A. B\\\"urger, M. Guttormsen, N. Lietaer, T.E. Hansen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2011-04-07T09:59:56Z","title":"The SiRi Particle-Telescope System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.1289","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:e8ddcda863c8bf3d5fa920f369238a3251a59428833ba376e8f26818db7602cb","target":"record","created_at":"2026-05-18T04:17:24Z","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":"74c1686189b23239a3e687b9c307381945663efed26904a7cabe567c489280b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2011-04-07T09:59:56Z","title_canon_sha256":"fd8c2622e929993087e8e86a02be84a54ba7737404a088e20620799448e8f213"},"schema_version":"1.0","source":{"id":"1104.1289","kind":"arxiv","version":1}},"canonical_sha256":"78d62e9aeffb47ef8184164ef056b3872b18d912e8ce3c5d3453bfb1500ef7c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"78d62e9aeffb47ef8184164ef056b3872b18d912e8ce3c5d3453bfb1500ef7c2","first_computed_at":"2026-05-18T04:17:24.789292Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:17:24.789292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"snFh6fneg7BMJ1oC/CVF8ZrDtWcbr5S7O0SCMgKALrKOiPuTw+QTK0pReG2lewMO2Gw4v3p75HpDAIKWxwb7DA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:17:24.790140Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.1289","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e8ddcda863c8bf3d5fa920f369238a3251a59428833ba376e8f26818db7602cb","sha256:62096120e614173b23533a15168833ab039d411ed46bcdf58785574d53d96233"],"state_sha256":"074e3818b7be36046465d42811bcb6ce6b6ccbdffec37bf4ce4e12534ba8e32c"}