{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1994:YMIZT2ELLLCNZFCDAVQSSFEFY4","short_pith_number":"pith:YMIZT2EL","schema_version":"1.0","canonical_sha256":"c31199e88b5ac4dc94430561291485c707c55a7d99c088c5eadbe6553fbba92b","source":{"kind":"arxiv","id":"hep-ph/9406424","version":1},"attestation_state":"computed","paper":{"title":"Radiative B-decay as a test of CKM unitarity","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Debajyoti Choudhury, Gautam Bhattacharyya, Gustavo C. Branco","submitted_at":"1994-06-30T16:53:05Z","abstract_excerpt":"We point out that $R \\equiv Br(b\\rightarrow d \\gamma)/Br(b\\rightarrow s \\gamma)$ is a sensitive probe of possible violation of CKM unitarity. We compute $R$ in a minimal extension of the Standard Model containing an additional isosinglet charge ($-1/3$) quark, which leads to a deviation from CKM unitarity."},"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-ph/9406424","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1994-06-30T16:53:05Z","cross_cats_sorted":[],"title_canon_sha256":"35e3bf51270c5bf677818c5ac193410995cefd04676cea7d840ac8a21aedf295","abstract_canon_sha256":"6cab6a860e282870fa9fca3cbb3bd16968f5ee6610aa4a41e2c600bf217125bf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:37:45.274189Z","signature_b64":"gujr7ZXL/zSf1SlPo5S1gdvXkMAJky1I4uCW1NeqtGBJcwkvUJxPLbL04jYrgsIHNt2DJWu0cE0qY0GcTU9BBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c31199e88b5ac4dc94430561291485c707c55a7d99c088c5eadbe6553fbba92b","last_reissued_at":"2026-05-18T04:37:45.273552Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:37:45.273552Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Radiative B-decay as a test of CKM unitarity","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Debajyoti Choudhury, Gautam Bhattacharyya, Gustavo C. Branco","submitted_at":"1994-06-30T16:53:05Z","abstract_excerpt":"We point out that $R \\equiv Br(b\\rightarrow d \\gamma)/Br(b\\rightarrow s \\gamma)$ is a sensitive probe of possible violation of CKM unitarity. We compute $R$ in a minimal extension of the Standard Model containing an additional isosinglet charge ($-1/3$) quark, which leads to a deviation from CKM unitarity."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9406424","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":""},"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-ph/9406424","created_at":"2026-05-18T04:37:45.273643+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9406424v1","created_at":"2026-05-18T04:37:45.273643+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9406424","created_at":"2026-05-18T04:37:45.273643+00:00"},{"alias_kind":"pith_short_12","alias_value":"YMIZT2ELLLCN","created_at":"2026-05-18T12:25:47.102015+00:00"},{"alias_kind":"pith_short_16","alias_value":"YMIZT2ELLLCNZFCD","created_at":"2026-05-18T12:25:47.102015+00:00"},{"alias_kind":"pith_short_8","alias_value":"YMIZT2EL","created_at":"2026-05-18T12:25:47.102015+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/YMIZT2ELLLCNZFCDAVQSSFEFY4","json":"https://pith.science/pith/YMIZT2ELLLCNZFCDAVQSSFEFY4.json","graph_json":"https://pith.science/api/pith-number/YMIZT2ELLLCNZFCDAVQSSFEFY4/graph.json","events_json":"https://pith.science/api/pith-number/YMIZT2ELLLCNZFCDAVQSSFEFY4/events.json","paper":"https://pith.science/paper/YMIZT2EL"},"agent_actions":{"view_html":"https://pith.science/pith/YMIZT2ELLLCNZFCDAVQSSFEFY4","download_json":"https://pith.science/pith/YMIZT2ELLLCNZFCDAVQSSFEFY4.json","view_paper":"https://pith.science/paper/YMIZT2EL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ph/9406424&json=true","fetch_graph":"https://pith.science/api/pith-number/YMIZT2ELLLCNZFCDAVQSSFEFY4/graph.json","fetch_events":"https://pith.science/api/pith-number/YMIZT2ELLLCNZFCDAVQSSFEFY4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YMIZT2ELLLCNZFCDAVQSSFEFY4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YMIZT2ELLLCNZFCDAVQSSFEFY4/action/storage_attestation","attest_author":"https://pith.science/pith/YMIZT2ELLLCNZFCDAVQSSFEFY4/action/author_attestation","sign_citation":"https://pith.science/pith/YMIZT2ELLLCNZFCDAVQSSFEFY4/action/citation_signature","submit_replication":"https://pith.science/pith/YMIZT2ELLLCNZFCDAVQSSFEFY4/action/replication_record"}},"created_at":"2026-05-18T04:37:45.273643+00:00","updated_at":"2026-05-18T04:37:45.273643+00:00"}