{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:MKYUDV26LZ73562LXUKCVUIE7J","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":"47dd2ba49f7ae9a1bad66a4a073039d62d8984690b4ba2eaf320aaad9f59f5b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-05-09T12:30:26Z","title_canon_sha256":"d96f46316638d0c80cde1810053458368e1fede43c95bee533932788b4b6c808"},"schema_version":"1.0","source":{"id":"0805.1338","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0805.1338","created_at":"2026-07-04T15:11:28Z"},{"alias_kind":"arxiv_version","alias_value":"0805.1338v1","created_at":"2026-07-04T15:11:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0805.1338","created_at":"2026-07-04T15:11:28Z"},{"alias_kind":"pith_short_12","alias_value":"MKYUDV26LZ73","created_at":"2026-07-04T15:11:28Z"},{"alias_kind":"pith_short_16","alias_value":"MKYUDV26LZ73562L","created_at":"2026-07-04T15:11:28Z"},{"alias_kind":"pith_short_8","alias_value":"MKYUDV26","created_at":"2026-07-04T15:11:28Z"}],"graph_snapshots":[{"event_id":"sha256:dacb28dfa61b9ef25736474bc6a1ec73141b4420da05a517cbbc212b9716d53f","target":"graph","created_at":"2026-07-04T15:11:28Z","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/0805.1338/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the neutrino mass matrix derived from the seesaw mechanism in which the neutrino Yukawa couplings and the heavy Majorana neutrino mass matrix are controlled by the Froggatt-Nielsen mechanism. In order to obtain the large neutrino mixings, two Froggatt-Nielsen fields are introduced with a complex vacuum expectation values. As a by-product, CP violation is systematically induced even if the order one couplings of FN fields are real. We show several predictions of this model, such as theta_{13}, the Dirac CP phase, two Majorana CP phases, the effective mass of the neutrinoless double bet","authors_text":"Eiichi Takasugi, Hiroshi Kamikado, Tetsuo Shindou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-05-09T12:30:26Z","title":"Froggatt-Nielsen hierarchy and the neutrino mass matrix"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0805.1338","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":"sha256:9d537dbcfa2a4731747f2dd1fe7c8f3d9a85a0db66a4349d8f87f37e553d89ab","target":"record","created_at":"2026-07-04T15:11:28Z","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":"47dd2ba49f7ae9a1bad66a4a073039d62d8984690b4ba2eaf320aaad9f59f5b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-05-09T12:30:26Z","title_canon_sha256":"d96f46316638d0c80cde1810053458368e1fede43c95bee533932788b4b6c808"},"schema_version":"1.0","source":{"id":"0805.1338","kind":"arxiv","version":1}},"canonical_sha256":"62b141d75e5e7fbefb4bbd142ad104fa56b296b22ecb892e4ecf8b649cc9ed2b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"62b141d75e5e7fbefb4bbd142ad104fa56b296b22ecb892e4ecf8b649cc9ed2b","first_computed_at":"2026-07-04T15:11:28.677406Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:11:28.677406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VdCsucdK8EdLazw/dxapWDu53AC/XAoGPMDTGMAhYfUIblQKXudadXg8jaiHJbidCCSheC3R0yCPiLPyOPXHDg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:11:28.677928Z","signed_message":"canonical_sha256_bytes"},"source_id":"0805.1338","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d537dbcfa2a4731747f2dd1fe7c8f3d9a85a0db66a4349d8f87f37e553d89ab","sha256:dacb28dfa61b9ef25736474bc6a1ec73141b4420da05a517cbbc212b9716d53f"],"state_sha256":"a8259d5b74763901f48a597d2f064968d68f9818742f06ce6fb0a7b47939bb70"}