{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:N32DOF2OF5ANODWAUYC53CPAJ7","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":"be1700750195d9990dc131714a0da11c540ba0ff68fe8ee2dff5d852eabed2ae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2009-08-26T16:25:18Z","title_canon_sha256":"b06ef90aeba810e6e5c93709c8a0e7331378c3a89328c2a2cd4e72005460db92"},"schema_version":"1.0","source":{"id":"0908.3858","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.3858","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"arxiv_version","alias_value":"0908.3858v1","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.3858","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"pith_short_12","alias_value":"N32DOF2OF5AN","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"N32DOF2OF5ANODWA","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"N32DOF2O","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:72f226580516853e0de895fb34932c0a497bf57bdd4ef012020b5926f1e8dad5","target":"graph","created_at":"2026-05-18T04:18:13Z","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 NA62 experiment at CERN collected a large sample of $K^+\\to e^+\\nu$ decays during a dedicated run in 2007, which allows a precise test of lepton universality by measurement of the helicity suppressed ratio $R_K = \\Gamma(K^+\\to e^+\\nu)/\\Gamma(K^+\\to\\mu^+\\nu)$. The preliminary result of the analysis of a partial data sample of 51089 $K^+\\to e^+\\nu$ candidates is $R_K=(2.500\\pm0.016)\\times10^{-5}$, consistent with the Standard Model expectation.","authors_text":"Evgueni Goudzovski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2009-08-26T16:25:18Z","title":"Lepton universality test with K+ --> l+ nu decays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.3858","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":"sha256:8c67adc0d03c47e6bf2f966b1ca91def53fcf99ce527473ee03c7c3b52851a23","target":"record","created_at":"2026-05-18T04:18:13Z","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":"be1700750195d9990dc131714a0da11c540ba0ff68fe8ee2dff5d852eabed2ae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2009-08-26T16:25:18Z","title_canon_sha256":"b06ef90aeba810e6e5c93709c8a0e7331378c3a89328c2a2cd4e72005460db92"},"schema_version":"1.0","source":{"id":"0908.3858","kind":"arxiv","version":1}},"canonical_sha256":"6ef437174e2f40d70ec0a605dd89e04fd13b1725f1dd11c4e023353247c46f12","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6ef437174e2f40d70ec0a605dd89e04fd13b1725f1dd11c4e023353247c46f12","first_computed_at":"2026-05-18T04:18:13.015302Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:18:13.015302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dVDM9IZkfw6QUCancBu9r4ly1WtCKJakDjmcgf/HCzI4TNWCg7ZvW05SQRVB7LkmiFo035gkaB3T210wJJkfBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:18:13.015739Z","signed_message":"canonical_sha256_bytes"},"source_id":"0908.3858","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c67adc0d03c47e6bf2f966b1ca91def53fcf99ce527473ee03c7c3b52851a23","sha256:72f226580516853e0de895fb34932c0a497bf57bdd4ef012020b5926f1e8dad5"],"state_sha256":"099c1fdafbfe454d950ccf5286c824172fcdbc434201b487025eca066cea3805"}