{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:6LALBGT5B4PUZOCXUTWBUQZUWW","short_pith_number":"pith:6LALBGT5","schema_version":"1.0","canonical_sha256":"f2c0b09a7d0f1f4cb857a4ec1a4334b5916982e2e6074ace612fd88efb5212f5","source":{"kind":"arxiv","id":"hep-ex/0409009","version":1},"attestation_state":"computed","paper":{"title":"Observation of B+ -> proton Lambdabar gamma","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al. (for the Belle Collaboration), K. Abe","submitted_at":"2004-09-02T10:09:00Z","abstract_excerpt":"We report the first observation of the radiative hyperonic B decay B+ -> proton Lambdabar gamma, using a 140 fb-1 data sample recorded on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured branching fraction is B(B+ -> proton Lambdabar gamma) = (2.16 ^{+0.58}_{-0.53} +- 0.20) times 10^{-6}. A search for B+ -> proton Sigmabar gamma yields no significant signal, so we set a 90% confidence-level upper limit on the branching fraction of B(B+ -> proton Sigmabar gamma) < 3.3 times 10^{-6}."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"hep-ex/0409009","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2004-09-02T10:09:00Z","cross_cats_sorted":[],"title_canon_sha256":"b680cf9c4e82d58e859889800c170a707c995523c34586e4fd9aa1c4b0884118","abstract_canon_sha256":"f9a7c1502298fbd3c8701e34243a562e361377654c41c2e6d71981d2f7e6ca97"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:54:20.382334Z","signature_b64":"qelUurmz4uo0a/A3swLNm1uLdEXcQ7XW38nKEha+v4gC7uj/1tjivKhW1XdfAjP4A/9hWTDm1mVIdXJwgl+/AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2c0b09a7d0f1f4cb857a4ec1a4334b5916982e2e6074ace612fd88efb5212f5","last_reissued_at":"2026-07-04T23:54:20.381901Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:54:20.381901Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observation of B+ -> proton Lambdabar gamma","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al. (for the Belle Collaboration), K. Abe","submitted_at":"2004-09-02T10:09:00Z","abstract_excerpt":"We report the first observation of the radiative hyperonic B decay B+ -> proton Lambdabar gamma, using a 140 fb-1 data sample recorded on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured branching fraction is B(B+ -> proton Lambdabar gamma) = (2.16 ^{+0.58}_{-0.53} +- 0.20) times 10^{-6}. A search for B+ -> proton Sigmabar gamma yields no significant signal, so we set a 90% confidence-level upper limit on the branching fraction of B(B+ -> proton Sigmabar gamma) < 3.3 times 10^{-6}."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0409009","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/0409009/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0409009","created_at":"2026-07-04T23:54:20.381962+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0409009v1","created_at":"2026-07-04T23:54:20.381962+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0409009","created_at":"2026-07-04T23:54:20.381962+00:00"},{"alias_kind":"pith_short_12","alias_value":"6LALBGT5B4PU","created_at":"2026-07-04T23:54:20.381962+00:00"},{"alias_kind":"pith_short_16","alias_value":"6LALBGT5B4PUZOCX","created_at":"2026-07-04T23:54:20.381962+00:00"},{"alias_kind":"pith_short_8","alias_value":"6LALBGT5","created_at":"2026-07-04T23:54:20.381962+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6LALBGT5B4PUZOCXUTWBUQZUWW","json":"https://pith.science/pith/6LALBGT5B4PUZOCXUTWBUQZUWW.json","graph_json":"https://pith.science/api/pith-number/6LALBGT5B4PUZOCXUTWBUQZUWW/graph.json","events_json":"https://pith.science/api/pith-number/6LALBGT5B4PUZOCXUTWBUQZUWW/events.json","paper":"https://pith.science/paper/6LALBGT5"},"agent_actions":{"view_html":"https://pith.science/pith/6LALBGT5B4PUZOCXUTWBUQZUWW","download_json":"https://pith.science/pith/6LALBGT5B4PUZOCXUTWBUQZUWW.json","view_paper":"https://pith.science/paper/6LALBGT5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ex/0409009&json=true","fetch_graph":"https://pith.science/api/pith-number/6LALBGT5B4PUZOCXUTWBUQZUWW/graph.json","fetch_events":"https://pith.science/api/pith-number/6LALBGT5B4PUZOCXUTWBUQZUWW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6LALBGT5B4PUZOCXUTWBUQZUWW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6LALBGT5B4PUZOCXUTWBUQZUWW/action/storage_attestation","attest_author":"https://pith.science/pith/6LALBGT5B4PUZOCXUTWBUQZUWW/action/author_attestation","sign_citation":"https://pith.science/pith/6LALBGT5B4PUZOCXUTWBUQZUWW/action/citation_signature","submit_replication":"https://pith.science/pith/6LALBGT5B4PUZOCXUTWBUQZUWW/action/replication_record"}},"created_at":"2026-07-04T23:54:20.381962+00:00","updated_at":"2026-07-04T23:54:20.381962+00:00"}