{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:WV6L4B54XVQVTO7FPNIOREAAIC","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":"3269cdc27445657c83e630253992f495511e91c3f8d95bcad60c41d58ef4d708","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2006-04-09T12:31:49Z","title_canon_sha256":"89faad73bd330f7986e040a306b409d2603489a081e3e9567e5bddda6d37fb34"},"schema_version":"1.0","source":{"id":"hep-ex/0604018","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0604018","created_at":"2026-07-04T23:54:22Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0604018v3","created_at":"2026-07-04T23:54:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0604018","created_at":"2026-07-04T23:54:22Z"},{"alias_kind":"pith_short_12","alias_value":"WV6L4B54XVQV","created_at":"2026-07-04T23:54:22Z"},{"alias_kind":"pith_short_16","alias_value":"WV6L4B54XVQVTO7F","created_at":"2026-07-04T23:54:22Z"},{"alias_kind":"pith_short_8","alias_value":"WV6L4B54","created_at":"2026-07-04T23:54:22Z"}],"graph_snapshots":[{"event_id":"sha256:4aacd3666ba85986c932033619d499e6aba90cf5d1cd040a261c251a7e054e11","target":"graph","created_at":"2026-07-04T23:54:22Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/hep-ex/0604018/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the first evidence of the decay B- --> tau- nu_tau-bar using 414 fb^-1 of data collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. Events are tagged by fully reconstructing one of the B mesons in hadronic modes. We detect the signal with a significance of 3.5 standard deviations including systematics, and measure the branching fraction to be Br(B- --> tau- nu_tau-bar) = (1.79 +0.56-0.49(stat) +0.46-0.51(syst))*10^-4. This implies that f_B = 0.229 +0.036-0.031(stat) +0.034-0.037(syst) GeV and is the first direct measurement of t","authors_text":"et al. (for the Belle Collaboration), K. Ikado","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"2006-04-09T12:31:49Z","title":"Evidence of the Purely Leptonic Decay B- --> tau- nu_tau-bar"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0604018","kind":"arxiv","version":3},"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:a584615f731fae0c84f6e37f8118f654875b620fdc050f41d9de9e3e35ebc6e0","target":"record","created_at":"2026-07-04T23:54:22Z","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":"3269cdc27445657c83e630253992f495511e91c3f8d95bcad60c41d58ef4d708","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2006-04-09T12:31:49Z","title_canon_sha256":"89faad73bd330f7986e040a306b409d2603489a081e3e9567e5bddda6d37fb34"},"schema_version":"1.0","source":{"id":"hep-ex/0604018","kind":"arxiv","version":3}},"canonical_sha256":"b57cbe07bcbd6159bbe57b50e890004091bafe949ad3f2da73e1c9baf0aaf925","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b57cbe07bcbd6159bbe57b50e890004091bafe949ad3f2da73e1c9baf0aaf925","first_computed_at":"2026-07-04T23:54:22.851269Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:54:22.851269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"840F1QFeHaUNnaGo9AUX82dkicpyCNQDoxybytsbpiZOk3bhvGP5Yk3wLpFlyDjSIFDc+AKljp5huEL/tZEtAg==","signature_status":"signed_v1","signed_at":"2026-07-04T23:54:22.851644Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ex/0604018","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a584615f731fae0c84f6e37f8118f654875b620fdc050f41d9de9e3e35ebc6e0","sha256:4aacd3666ba85986c932033619d499e6aba90cf5d1cd040a261c251a7e054e11"],"state_sha256":"765c27920c08edb9333dc2576b05008f513e590c08afb099d8f1c93801ba5f42"}