{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:BPZ7C45BRSAKH6KUXSVETTOEBJ","short_pith_number":"pith:BPZ7C45B","canonical_record":{"source":{"id":"hep-ph/9808331","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1998-08-14T15:59:38Z","cross_cats_sorted":[],"title_canon_sha256":"cdfaf3986f15030230cb905572ece6c23c2f4d21eedd5998be27f1e0b72d8dbf","abstract_canon_sha256":"e541199e41ba4c973dba3641704c9a9b37113213e9cf967d5073865e3750b629"},"schema_version":"1.0"},"canonical_sha256":"0bf3f173a18c80a3f954bcaa49cdc40a6fe8b66cece77bafe076420a3180ef59","source":{"kind":"arxiv","id":"hep-ph/9808331","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9808331","created_at":"2026-05-18T04:33:05Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9808331v4","created_at":"2026-05-18T04:33:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9808331","created_at":"2026-05-18T04:33:05Z"},{"alias_kind":"pith_short_12","alias_value":"BPZ7C45BRSAK","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"BPZ7C45BRSAKH6KU","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"BPZ7C45B","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:BPZ7C45BRSAKH6KUXSVETTOEBJ","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9808331","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1998-08-14T15:59:38Z","cross_cats_sorted":[],"title_canon_sha256":"cdfaf3986f15030230cb905572ece6c23c2f4d21eedd5998be27f1e0b72d8dbf","abstract_canon_sha256":"e541199e41ba4c973dba3641704c9a9b37113213e9cf967d5073865e3750b629"},"schema_version":"1.0"},"canonical_sha256":"0bf3f173a18c80a3f954bcaa49cdc40a6fe8b66cece77bafe076420a3180ef59","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:33:05.030942Z","signature_b64":"JG5ND8sx2kRAxShnZn+aTJ1tadcykwl7fxm4hPTy09Bk9kaJSznuzeDtp7OdtyJ8erA3KxHf0fffe3cmLG08Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0bf3f173a18c80a3f954bcaa49cdc40a6fe8b66cece77bafe076420a3180ef59","last_reissued_at":"2026-05-18T04:33:05.030185Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:33:05.030185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9808331","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:33:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U/bmRMFnLNY88JIxKZitSo2mMqLwoJXyewmbJJJVLDCtYcOvRpHG3iSSQEgC5sIr8xIMJWJd5s7Jv36aIVizAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:34:37.070915Z"},"content_sha256":"3c089f6750148560354fbeabffeecbe100fc05a7cdb6194a662af637382f20a1","schema_version":"1.0","event_id":"sha256:3c089f6750148560354fbeabffeecbe100fc05a7cdb6194a662af637382f20a1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:BPZ7C45BRSAKH6KUXSVETTOEBJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An apprach to generate large and small leptonic mixing angles","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Biswajoy Brahmachari","submitted_at":"1998-08-14T15:59:38Z","abstract_excerpt":"We take up the point of view that Yukawa couplings can be either 0 or 1, and the mass patterns of fermions are generated purely from the structure of the Yukawa matrices. We utilize such neutrino as well as charged leptonic textures which lead to (maximal) mixing angles of $\\pi/4$ in each sector for relevant transitions. The combined leptonic CKM mixing angles are $\\pi/4 \\pm \\pi/4$ which lead to very small $\\sin^2 2 \\Theta$ relevant to solar neutrino and LSND experiments. We propose that on the other hand the absence of the charged leptonic partner of the sterile neutrino maintains the angle $"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9808331","kind":"arxiv","version":4},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:33:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nvMUhNd4bsGbMUoiJaFnl+bMv9O0tz91Al2tmWuySWqgxxlX3Og379eeUQWfXi3mnBy5SBALuz2gAK/qbRF0CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:34:37.071261Z"},"content_sha256":"c016cc698500bf405f5c015fe57f06151873fb37807a8c6a5bc4d5c7f6fad56c","schema_version":"1.0","event_id":"sha256:c016cc698500bf405f5c015fe57f06151873fb37807a8c6a5bc4d5c7f6fad56c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BPZ7C45BRSAKH6KUXSVETTOEBJ/bundle.json","state_url":"https://pith.science/pith/BPZ7C45BRSAKH6KUXSVETTOEBJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BPZ7C45BRSAKH6KUXSVETTOEBJ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-01T22:34:37Z","links":{"resolver":"https://pith.science/pith/BPZ7C45BRSAKH6KUXSVETTOEBJ","bundle":"https://pith.science/pith/BPZ7C45BRSAKH6KUXSVETTOEBJ/bundle.json","state":"https://pith.science/pith/BPZ7C45BRSAKH6KUXSVETTOEBJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BPZ7C45BRSAKH6KUXSVETTOEBJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:BPZ7C45BRSAKH6KUXSVETTOEBJ","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":"e541199e41ba4c973dba3641704c9a9b37113213e9cf967d5073865e3750b629","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-08-14T15:59:38Z","title_canon_sha256":"cdfaf3986f15030230cb905572ece6c23c2f4d21eedd5998be27f1e0b72d8dbf"},"schema_version":"1.0","source":{"id":"hep-ph/9808331","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9808331","created_at":"2026-05-18T04:33:05Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9808331v4","created_at":"2026-05-18T04:33:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9808331","created_at":"2026-05-18T04:33:05Z"},{"alias_kind":"pith_short_12","alias_value":"BPZ7C45BRSAK","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"BPZ7C45BRSAKH6KU","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"BPZ7C45B","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:c016cc698500bf405f5c015fe57f06151873fb37807a8c6a5bc4d5c7f6fad56c","target":"graph","created_at":"2026-05-18T04:33:05Z","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":"We take up the point of view that Yukawa couplings can be either 0 or 1, and the mass patterns of fermions are generated purely from the structure of the Yukawa matrices. We utilize such neutrino as well as charged leptonic textures which lead to (maximal) mixing angles of $\\pi/4$ in each sector for relevant transitions. The combined leptonic CKM mixing angles are $\\pi/4 \\pm \\pi/4$ which lead to very small $\\sin^2 2 \\Theta$ relevant to solar neutrino and LSND experiments. We propose that on the other hand the absence of the charged leptonic partner of the sterile neutrino maintains the angle $","authors_text":"Biswajoy Brahmachari","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1998-08-14T15:59:38Z","title":"An apprach to generate large and small leptonic mixing angles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9808331","kind":"arxiv","version":4},"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":"sha256:3c089f6750148560354fbeabffeecbe100fc05a7cdb6194a662af637382f20a1","target":"record","created_at":"2026-05-18T04:33:05Z","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":"e541199e41ba4c973dba3641704c9a9b37113213e9cf967d5073865e3750b629","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-08-14T15:59:38Z","title_canon_sha256":"cdfaf3986f15030230cb905572ece6c23c2f4d21eedd5998be27f1e0b72d8dbf"},"schema_version":"1.0","source":{"id":"hep-ph/9808331","kind":"arxiv","version":4}},"canonical_sha256":"0bf3f173a18c80a3f954bcaa49cdc40a6fe8b66cece77bafe076420a3180ef59","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0bf3f173a18c80a3f954bcaa49cdc40a6fe8b66cece77bafe076420a3180ef59","first_computed_at":"2026-05-18T04:33:05.030185Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:33:05.030185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JG5ND8sx2kRAxShnZn+aTJ1tadcykwl7fxm4hPTy09Bk9kaJSznuzeDtp7OdtyJ8erA3KxHf0fffe3cmLG08Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:33:05.030942Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9808331","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c089f6750148560354fbeabffeecbe100fc05a7cdb6194a662af637382f20a1","sha256:c016cc698500bf405f5c015fe57f06151873fb37807a8c6a5bc4d5c7f6fad56c"],"state_sha256":"6f95ed3b8d2083dc3abaa8899ecb95e5b3e95de9c1c047175d5e4239f26bd2ff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IaTjJp+HZqYeMCwLD5khdsFbDydl+8Zl9y62yaH0jDLr9TDDH53vlgweUqeCcjGVZrJK5+nfoduPrTfy2AcYBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T22:34:37.073466Z","bundle_sha256":"d2f9e5d071256db2d8778bd61d1de9c9ea118db08b096edd74b4d380b2e91f7d"}}