{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:QUM6R3EQRUKNXBQBU5KHCTZFUE","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":"fc0a5f7ab3b009199d6332f71e3f99e21642792ba7776d2e5f52b7943780830e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-10-12T19:07:16Z","title_canon_sha256":"2a533b08d670839da1c144976e4a7075fb4f54d5ff60b4b1cc6b8e891619281d"},"schema_version":"1.0","source":{"id":"1610.03827","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.03827","created_at":"2026-05-18T01:02:29Z"},{"alias_kind":"arxiv_version","alias_value":"1610.03827v1","created_at":"2026-05-18T01:02:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.03827","created_at":"2026-05-18T01:02:29Z"},{"alias_kind":"pith_short_12","alias_value":"QUM6R3EQRUKN","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"QUM6R3EQRUKNXBQB","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"QUM6R3EQ","created_at":"2026-05-18T12:30:41Z"}],"graph_snapshots":[{"event_id":"sha256:5113472e593a2af4287f32fed6aa83e2f2621f5925386e45512e57dde8f54989","target":"graph","created_at":"2026-05-18T01:02:29Z","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 measurement of $BR(K^+\\to\\pi^+\\nu\\bar{\\nu})$ with 10% precision by the NA62 experiment requires extreme background suppression. The Small Angle Calorimeter aims to provide an efficient veto for photons flying at angles down to zero with respect to the kaon flight direction. The initial prototype was upgraded and tested at the Beam Test Facility of the DA$\\Phi$NE Linac at Frascati. The energy resolution and the efficiency were measured and are presented.","authors_text":"A. Antonelli, F. Gonnella, M. Moulson, M. Raggi, T. Spadaro, V. Kozhuharov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-10-12T19:07:16Z","title":"Study of the performance of the NA62 Small-Angle Calorimeter at the DA$\\Phi$NE Linac"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.03827","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":"sha256:4c027913caad9de553aa6e307115b00eae6b247d4956b50fadba74cf7adde6c8","target":"record","created_at":"2026-05-18T01:02:29Z","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":"fc0a5f7ab3b009199d6332f71e3f99e21642792ba7776d2e5f52b7943780830e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-10-12T19:07:16Z","title_canon_sha256":"2a533b08d670839da1c144976e4a7075fb4f54d5ff60b4b1cc6b8e891619281d"},"schema_version":"1.0","source":{"id":"1610.03827","kind":"arxiv","version":1}},"canonical_sha256":"8519e8ec908d14db8601a754714f25a10ebf187e33c3f092997b829fe3d4152b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8519e8ec908d14db8601a754714f25a10ebf187e33c3f092997b829fe3d4152b","first_computed_at":"2026-05-18T01:02:29.136558Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:02:29.136558Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KWTqP4Q8a1VDdwFtYuBUZfTEgTURoQe4lB4c4pnX/h4KWMPrjN6MmgkGuXP1Zh5KmaJqixJoSjfojMx7v1PkCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:02:29.137071Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.03827","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4c027913caad9de553aa6e307115b00eae6b247d4956b50fadba74cf7adde6c8","sha256:5113472e593a2af4287f32fed6aa83e2f2621f5925386e45512e57dde8f54989"],"state_sha256":"3ef738aa06e2dfcf91b0fa6e24d59d84935df3d9e0aedc7e8777ec530f4ea7ec"}