{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:6KZO2LHMOARNDY4JJZUI2MDUZ2","short_pith_number":"pith:6KZO2LHM","canonical_record":{"source":{"id":"1504.05514","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-21T17:16:52Z","cross_cats_sorted":[],"title_canon_sha256":"bf8981a185c3955d13450a1db6b2d986cae01d20606465143f5e329086bcd174","abstract_canon_sha256":"1b9484e068a22bd72f6c785103e3413cd9e34db118b0192521e482fbf4242d74"},"schema_version":"1.0"},"canonical_sha256":"f2b2ed2cec7022d1e3894e688d3074cea0b15e09bbdbbaa9e6c439ba2703ccc9","source":{"kind":"arxiv","id":"1504.05514","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.05514","created_at":"2026-05-18T02:18:14Z"},{"alias_kind":"arxiv_version","alias_value":"1504.05514v1","created_at":"2026-05-18T02:18:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.05514","created_at":"2026-05-18T02:18:14Z"},{"alias_kind":"pith_short_12","alias_value":"6KZO2LHMOARN","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6KZO2LHMOARNDY4J","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6KZO2LHM","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:6KZO2LHMOARNDY4JJZUI2MDUZ2","target":"record","payload":{"canonical_record":{"source":{"id":"1504.05514","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-21T17:16:52Z","cross_cats_sorted":[],"title_canon_sha256":"bf8981a185c3955d13450a1db6b2d986cae01d20606465143f5e329086bcd174","abstract_canon_sha256":"1b9484e068a22bd72f6c785103e3413cd9e34db118b0192521e482fbf4242d74"},"schema_version":"1.0"},"canonical_sha256":"f2b2ed2cec7022d1e3894e688d3074cea0b15e09bbdbbaa9e6c439ba2703ccc9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:18:14.100636Z","signature_b64":"I29g3Zi3yMAvXpf0LmWwZ7rTNe8XaDPPJ5ryRsKMbhM8JUq01I30xg2PUrk6oxleJXwDW9NIQjPVuHjK4ZzlCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2b2ed2cec7022d1e3894e688d3074cea0b15e09bbdbbaa9e6c439ba2703ccc9","last_reissued_at":"2026-05-18T02:18:14.100241Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:18:14.100241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.05514","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:18:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5hrlmZQZT8rTipLtTuK9HVh51hRvQXDwQtdu3dfDwG8d7+30Kiwyoz2H7O96y3EepnHnNPhUywjTEwz0EPBMDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T18:32:28.749850Z"},"content_sha256":"13225166293c184739903fd0cbc697199abecb057c10890b8afa812fb7151a1a","schema_version":"1.0","event_id":"sha256:13225166293c184739903fd0cbc697199abecb057c10890b8afa812fb7151a1a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:6KZO2LHMOARNDY4JJZUI2MDUZ2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On Bimaximal Neutrino Mixing and GUT's","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Davide Meloni, Guido Altarelli, Pedro A. N. Machado","submitted_at":"2015-04-21T17:16:52Z","abstract_excerpt":"We briefly discuss the present status of models of neutrino mixing. Among the existing viable options we review the virtues of Bimaximal Mixing (that could be implemented by an $S_4$ discrete symmetry), corrected by terms arising from the charged lepton mass diagonalization. In particular in a GUT formulation the property of quark lepton \"weak\" complementarity can be naturally realized. We discuss in some detail two new versions of particular GUT models, one based on $SU(5)$ and one on $SO(10)$ and the associated phenomenology. We compare these approaches based on symmetry to models based on c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.05514","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:18:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fGJ9Vb7nBGsz7kIi8TQYD91YcTkqRyDJIfmAvI5gUQI+GzaixSLdvJwnUNGs4GY9Rk+uxOMWHYgVyxO6ytU4CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T18:32:28.750510Z"},"content_sha256":"882bab82ffd8dd0a8f845f2b4be0acc87728a10e6add36fc23294cab2fbc6d31","schema_version":"1.0","event_id":"sha256:882bab82ffd8dd0a8f845f2b4be0acc87728a10e6add36fc23294cab2fbc6d31"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6KZO2LHMOARNDY4JJZUI2MDUZ2/bundle.json","state_url":"https://pith.science/pith/6KZO2LHMOARNDY4JJZUI2MDUZ2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6KZO2LHMOARNDY4JJZUI2MDUZ2/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":"2026-05-18T18:32:28Z","links":{"resolver":"https://pith.science/pith/6KZO2LHMOARNDY4JJZUI2MDUZ2","bundle":"https://pith.science/pith/6KZO2LHMOARNDY4JJZUI2MDUZ2/bundle.json","state":"https://pith.science/pith/6KZO2LHMOARNDY4JJZUI2MDUZ2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6KZO2LHMOARNDY4JJZUI2MDUZ2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:6KZO2LHMOARNDY4JJZUI2MDUZ2","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":"1b9484e068a22bd72f6c785103e3413cd9e34db118b0192521e482fbf4242d74","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-21T17:16:52Z","title_canon_sha256":"bf8981a185c3955d13450a1db6b2d986cae01d20606465143f5e329086bcd174"},"schema_version":"1.0","source":{"id":"1504.05514","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.05514","created_at":"2026-05-18T02:18:14Z"},{"alias_kind":"arxiv_version","alias_value":"1504.05514v1","created_at":"2026-05-18T02:18:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.05514","created_at":"2026-05-18T02:18:14Z"},{"alias_kind":"pith_short_12","alias_value":"6KZO2LHMOARN","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6KZO2LHMOARNDY4J","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6KZO2LHM","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:882bab82ffd8dd0a8f845f2b4be0acc87728a10e6add36fc23294cab2fbc6d31","target":"graph","created_at":"2026-05-18T02:18:14Z","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 briefly discuss the present status of models of neutrino mixing. Among the existing viable options we review the virtues of Bimaximal Mixing (that could be implemented by an $S_4$ discrete symmetry), corrected by terms arising from the charged lepton mass diagonalization. In particular in a GUT formulation the property of quark lepton \"weak\" complementarity can be naturally realized. We discuss in some detail two new versions of particular GUT models, one based on $SU(5)$ and one on $SO(10)$ and the associated phenomenology. We compare these approaches based on symmetry to models based on c","authors_text":"Davide Meloni, Guido Altarelli, Pedro A. N. Machado","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-21T17:16:52Z","title":"On Bimaximal Neutrino Mixing and GUT's"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.05514","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":"sha256:13225166293c184739903fd0cbc697199abecb057c10890b8afa812fb7151a1a","target":"record","created_at":"2026-05-18T02:18:14Z","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":"1b9484e068a22bd72f6c785103e3413cd9e34db118b0192521e482fbf4242d74","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-21T17:16:52Z","title_canon_sha256":"bf8981a185c3955d13450a1db6b2d986cae01d20606465143f5e329086bcd174"},"schema_version":"1.0","source":{"id":"1504.05514","kind":"arxiv","version":1}},"canonical_sha256":"f2b2ed2cec7022d1e3894e688d3074cea0b15e09bbdbbaa9e6c439ba2703ccc9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2b2ed2cec7022d1e3894e688d3074cea0b15e09bbdbbaa9e6c439ba2703ccc9","first_computed_at":"2026-05-18T02:18:14.100241Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:18:14.100241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"I29g3Zi3yMAvXpf0LmWwZ7rTNe8XaDPPJ5ryRsKMbhM8JUq01I30xg2PUrk6oxleJXwDW9NIQjPVuHjK4ZzlCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:18:14.100636Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.05514","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13225166293c184739903fd0cbc697199abecb057c10890b8afa812fb7151a1a","sha256:882bab82ffd8dd0a8f845f2b4be0acc87728a10e6add36fc23294cab2fbc6d31"],"state_sha256":"b0b195602556355c45c57f9b8d5bbf8936938995d371bc58d962be0026191856"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5d2IYw3AIfCKPF584X3Cd8NMHrXLPjrfhupfHORfUqWIagBXE53WDqgwMoUO62adN8sXpec0FbFQ6OlzLT39Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T18:32:28.752541Z","bundle_sha256":"c036c924d01b781a1a21383170338c6d5ff453c3fca5061c0e64064bc2e617ec"}}