{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:EJXXJSLNJPMNWOFZLHYJADMDSB","short_pith_number":"pith:EJXXJSLN","canonical_record":{"source":{"id":"1306.6889","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2013-06-28T16:35:49Z","cross_cats_sorted":[],"title_canon_sha256":"32c2fe8f036ac7512365658acf83a85e8ba3743f021fd76c2d26015514508e66","abstract_canon_sha256":"406250cf511341a846743c3c21ee120073c8bb085d4b3c5f490914ebaa11ddf7"},"schema_version":"1.0"},"canonical_sha256":"226f74c96d4bd8db38b959f0900d839057c560967161ff609fc4d7c3aae96fbc","source":{"kind":"arxiv","id":"1306.6889","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.6889","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"arxiv_version","alias_value":"1306.6889v2","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.6889","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"pith_short_12","alias_value":"EJXXJSLNJPMN","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"EJXXJSLNJPMNWOFZ","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"EJXXJSLN","created_at":"2026-05-18T12:27:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:EJXXJSLNJPMNWOFZLHYJADMDSB","target":"record","payload":{"canonical_record":{"source":{"id":"1306.6889","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2013-06-28T16:35:49Z","cross_cats_sorted":[],"title_canon_sha256":"32c2fe8f036ac7512365658acf83a85e8ba3743f021fd76c2d26015514508e66","abstract_canon_sha256":"406250cf511341a846743c3c21ee120073c8bb085d4b3c5f490914ebaa11ddf7"},"schema_version":"1.0"},"canonical_sha256":"226f74c96d4bd8db38b959f0900d839057c560967161ff609fc4d7c3aae96fbc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:18:19.809168Z","signature_b64":"eh96KOSu5aWQFalxNEsmwjF84cnJrUkjRxdZ/fKrd6rXK63lrkwbycO+svY/4ELWY0Upr1je4nI0IKQsz1K4BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"226f74c96d4bd8db38b959f0900d839057c560967161ff609fc4d7c3aae96fbc","last_reissued_at":"2026-05-18T03:18:19.808514Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:18:19.808514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.6889","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":"2026-05-18T03:18:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VW8vLYiG/ZD9XLGQavp5lOftYnXt4TFapZoIMMJaU7DOv3ABR8c6YsKUZB4fP8dDcM5Vpy0fmHUX6BW2eVqUAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T21:55:05.733150Z"},"content_sha256":"15cfde3b770957634e157452ea9201dbac9df426c5711f2e7d05269f34af63a3","schema_version":"1.0","event_id":"sha256:15cfde3b770957634e157452ea9201dbac9df426c5711f2e7d05269f34af63a3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:EJXXJSLNJPMNWOFZLHYJADMDSB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Preliminary Investigation of a Waveform Analysis with the WASA and the ACQIRIS Readout Electronics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"R.Engels, R.Fabbri","submitted_at":"2013-06-28T16:35:49Z","abstract_excerpt":"The Group for the development of neutron and gamma detectors in the Central Institute of Engineering, Electronics and Analytics (ZEA-2) at Forschungszentrum J\\\"ulich (FZJ) is developing a fast Anger Camera prototype for improving the rejection of the gamma contamination during the detection of neutrons. The prototype is based on a scintillating plate for neutron capture and on the subsequent generation of scintillating light collected by a matrix of 4x4 vacuum Photomultipliers R268 by Hamamatsu. According to the impinging point position of the incoming neutrons the light is collected by differ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.6889","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":""},"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":"2026-05-18T03:18:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EDFfYW/k6C4fko3kyBAz0yxDdnHERPaan6LzbIoTpe5mkD5qZ0FMxRLr4sCloxNC7zFKhsdNEP7NxshWVTJdAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T21:55:05.733755Z"},"content_sha256":"5c965df2307913b2d1dee375da9e922cd642a2dd783f7f866c21c49701faeaa4","schema_version":"1.0","event_id":"sha256:5c965df2307913b2d1dee375da9e922cd642a2dd783f7f866c21c49701faeaa4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EJXXJSLNJPMNWOFZLHYJADMDSB/bundle.json","state_url":"https://pith.science/pith/EJXXJSLNJPMNWOFZLHYJADMDSB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EJXXJSLNJPMNWOFZLHYJADMDSB/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":"2026-06-05T21:55:05Z","links":{"resolver":"https://pith.science/pith/EJXXJSLNJPMNWOFZLHYJADMDSB","bundle":"https://pith.science/pith/EJXXJSLNJPMNWOFZLHYJADMDSB/bundle.json","state":"https://pith.science/pith/EJXXJSLNJPMNWOFZLHYJADMDSB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EJXXJSLNJPMNWOFZLHYJADMDSB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:EJXXJSLNJPMNWOFZLHYJADMDSB","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":"406250cf511341a846743c3c21ee120073c8bb085d4b3c5f490914ebaa11ddf7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2013-06-28T16:35:49Z","title_canon_sha256":"32c2fe8f036ac7512365658acf83a85e8ba3743f021fd76c2d26015514508e66"},"schema_version":"1.0","source":{"id":"1306.6889","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.6889","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"arxiv_version","alias_value":"1306.6889v2","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.6889","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"pith_short_12","alias_value":"EJXXJSLNJPMN","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"EJXXJSLNJPMNWOFZ","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"EJXXJSLN","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:5c965df2307913b2d1dee375da9e922cd642a2dd783f7f866c21c49701faeaa4","target":"graph","created_at":"2026-05-18T03:18:19Z","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":"The Group for the development of neutron and gamma detectors in the Central Institute of Engineering, Electronics and Analytics (ZEA-2) at Forschungszentrum J\\\"ulich (FZJ) is developing a fast Anger Camera prototype for improving the rejection of the gamma contamination during the detection of neutrons. The prototype is based on a scintillating plate for neutron capture and on the subsequent generation of scintillating light collected by a matrix of 4x4 vacuum Photomultipliers R268 by Hamamatsu. According to the impinging point position of the incoming neutrons the light is collected by differ","authors_text":"R.Engels, R.Fabbri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2013-06-28T16:35:49Z","title":"Preliminary Investigation of a Waveform Analysis with the WASA and the ACQIRIS Readout Electronics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.6889","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":"sha256:15cfde3b770957634e157452ea9201dbac9df426c5711f2e7d05269f34af63a3","target":"record","created_at":"2026-05-18T03:18:19Z","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":"406250cf511341a846743c3c21ee120073c8bb085d4b3c5f490914ebaa11ddf7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2013-06-28T16:35:49Z","title_canon_sha256":"32c2fe8f036ac7512365658acf83a85e8ba3743f021fd76c2d26015514508e66"},"schema_version":"1.0","source":{"id":"1306.6889","kind":"arxiv","version":2}},"canonical_sha256":"226f74c96d4bd8db38b959f0900d839057c560967161ff609fc4d7c3aae96fbc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"226f74c96d4bd8db38b959f0900d839057c560967161ff609fc4d7c3aae96fbc","first_computed_at":"2026-05-18T03:18:19.808514Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:18:19.808514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eh96KOSu5aWQFalxNEsmwjF84cnJrUkjRxdZ/fKrd6rXK63lrkwbycO+svY/4ELWY0Upr1je4nI0IKQsz1K4BA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:18:19.809168Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.6889","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:15cfde3b770957634e157452ea9201dbac9df426c5711f2e7d05269f34af63a3","sha256:5c965df2307913b2d1dee375da9e922cd642a2dd783f7f866c21c49701faeaa4"],"state_sha256":"0e5b709ad61e4490a11e2178e8e8ebca6ca0343697d61ece61a1d8da7acbbee4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rlQAbRSyoMkbj2M65+RF8ZyAHZuJ2acWMJncvOpbUXrTGd5O42cWgzeSo8qCMwsbmCb08rePbdw+nuhUzji1Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T21:55:05.736667Z","bundle_sha256":"0e34281ff1d7ec9154b5bc3822efdd53aa9cba3b5ea25b676b39072d401ed8ee"}}