{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:LH4MHKJ5V7SNBECXSUTADJGPTE","short_pith_number":"pith:LH4MHKJ5","canonical_record":{"source":{"id":"hep-ph/0607144","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2006-07-12T19:56:20Z","cross_cats_sorted":[],"title_canon_sha256":"3fb9507b89ca32d8f1082bff12f494032eb092d2e6ff2bd5eb1fb0a20b44c89e","abstract_canon_sha256":"306cb5c8f79ca6e4d96f6059e646431c0d76140b794174a74505ea70c940d7f0"},"schema_version":"1.0"},"canonical_sha256":"59f8c3a93dafe4d09057952601a4cf99035d5c28146698588aad6e357d36441e","source":{"kind":"arxiv","id":"hep-ph/0607144","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0607144","created_at":"2026-05-18T01:39:02Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0607144v2","created_at":"2026-05-18T01:39:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0607144","created_at":"2026-05-18T01:39:02Z"},{"alias_kind":"pith_short_12","alias_value":"LH4MHKJ5V7SN","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"LH4MHKJ5V7SNBECX","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"LH4MHKJ5","created_at":"2026-05-18T12:25:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:LH4MHKJ5V7SNBECXSUTADJGPTE","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0607144","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2006-07-12T19:56:20Z","cross_cats_sorted":[],"title_canon_sha256":"3fb9507b89ca32d8f1082bff12f494032eb092d2e6ff2bd5eb1fb0a20b44c89e","abstract_canon_sha256":"306cb5c8f79ca6e4d96f6059e646431c0d76140b794174a74505ea70c940d7f0"},"schema_version":"1.0"},"canonical_sha256":"59f8c3a93dafe4d09057952601a4cf99035d5c28146698588aad6e357d36441e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:02.443085Z","signature_b64":"WEn9OEcK+TKhoEXZaWyS6Ee+p3iJF45lEBI41thdXyg0FMPZjNa0g11i0rNWQFpWRVjDrQFvnH1743zTd6wxBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"59f8c3a93dafe4d09057952601a4cf99035d5c28146698588aad6e357d36441e","last_reissued_at":"2026-05-18T01:39:02.442399Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:02.442399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0607144","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:39:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R8NJQqIf5tqfejlYEnqPhPRyye6mm3UyfDscC3eUmG+Z3wIWFYn7f6G50obvFEIQnZI1e3+biZKZ/JisiIvFDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T18:17:56.939736Z"},"content_sha256":"be0b62b68e9e43837c4648bfc7785927a1e5366f84a5c6e0e514b22b647d007e","schema_version":"1.0","event_id":"sha256:be0b62b68e9e43837c4648bfc7785927a1e5366f84a5c6e0e514b22b647d007e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:LH4MHKJ5V7SNBECXSUTADJGPTE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Custodial Symmetry and Extensions of the Standard Model","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"J. C. Montero, V. Pleitez","submitted_at":"2006-07-12T19:56:20Z","abstract_excerpt":"We show that the extension of the approximate custodial $SU(2)_{L+R}$ global symmetry to all the Yukawa interactions of the standard model Lagrangian implies the introduction of sterile right-handed neutrinos and the seesaw mechanism in this sector. In this framework, the observed quark and lepton masses may be interpreted as an effect of physics beyond the standard model. The mechanism used for breaking this symmetry in the Yukawa sector could be different from the one at work in the vector boson sector. We give three model independent examples of these mechanisms."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0607144","kind":"arxiv","version":2},"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":"2026-05-18T01:39:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8aoHmU4B/If+khjH98QBIVhgqTPjgyJDUiGH4DiVn3r1cjWV2dLSgdweTE8yXjQ8y5607kSXYCgQwbUc7fA9AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T18:17:56.940070Z"},"content_sha256":"1cd240bf31df4a65ee6e79066df7bebbbb881424c34b5f920372e004c49f9385","schema_version":"1.0","event_id":"sha256:1cd240bf31df4a65ee6e79066df7bebbbb881424c34b5f920372e004c49f9385"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LH4MHKJ5V7SNBECXSUTADJGPTE/bundle.json","state_url":"https://pith.science/pith/LH4MHKJ5V7SNBECXSUTADJGPTE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LH4MHKJ5V7SNBECXSUTADJGPTE/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":"2026-06-03T18:17:56Z","links":{"resolver":"https://pith.science/pith/LH4MHKJ5V7SNBECXSUTADJGPTE","bundle":"https://pith.science/pith/LH4MHKJ5V7SNBECXSUTADJGPTE/bundle.json","state":"https://pith.science/pith/LH4MHKJ5V7SNBECXSUTADJGPTE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LH4MHKJ5V7SNBECXSUTADJGPTE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:LH4MHKJ5V7SNBECXSUTADJGPTE","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":"306cb5c8f79ca6e4d96f6059e646431c0d76140b794174a74505ea70c940d7f0","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2006-07-12T19:56:20Z","title_canon_sha256":"3fb9507b89ca32d8f1082bff12f494032eb092d2e6ff2bd5eb1fb0a20b44c89e"},"schema_version":"1.0","source":{"id":"hep-ph/0607144","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0607144","created_at":"2026-05-18T01:39:02Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0607144v2","created_at":"2026-05-18T01:39:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0607144","created_at":"2026-05-18T01:39:02Z"},{"alias_kind":"pith_short_12","alias_value":"LH4MHKJ5V7SN","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"LH4MHKJ5V7SNBECX","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"LH4MHKJ5","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:1cd240bf31df4a65ee6e79066df7bebbbb881424c34b5f920372e004c49f9385","target":"graph","created_at":"2026-05-18T01:39:02Z","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 show that the extension of the approximate custodial $SU(2)_{L+R}$ global symmetry to all the Yukawa interactions of the standard model Lagrangian implies the introduction of sterile right-handed neutrinos and the seesaw mechanism in this sector. In this framework, the observed quark and lepton masses may be interpreted as an effect of physics beyond the standard model. The mechanism used for breaking this symmetry in the Yukawa sector could be different from the one at work in the vector boson sector. We give three model independent examples of these mechanisms.","authors_text":"J. C. Montero, V. Pleitez","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2006-07-12T19:56:20Z","title":"Custodial Symmetry and Extensions of the Standard Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0607144","kind":"arxiv","version":2},"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:be0b62b68e9e43837c4648bfc7785927a1e5366f84a5c6e0e514b22b647d007e","target":"record","created_at":"2026-05-18T01:39:02Z","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":"306cb5c8f79ca6e4d96f6059e646431c0d76140b794174a74505ea70c940d7f0","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2006-07-12T19:56:20Z","title_canon_sha256":"3fb9507b89ca32d8f1082bff12f494032eb092d2e6ff2bd5eb1fb0a20b44c89e"},"schema_version":"1.0","source":{"id":"hep-ph/0607144","kind":"arxiv","version":2}},"canonical_sha256":"59f8c3a93dafe4d09057952601a4cf99035d5c28146698588aad6e357d36441e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59f8c3a93dafe4d09057952601a4cf99035d5c28146698588aad6e357d36441e","first_computed_at":"2026-05-18T01:39:02.442399Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:02.442399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WEn9OEcK+TKhoEXZaWyS6Ee+p3iJF45lEBI41thdXyg0FMPZjNa0g11i0rNWQFpWRVjDrQFvnH1743zTd6wxBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:02.443085Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0607144","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be0b62b68e9e43837c4648bfc7785927a1e5366f84a5c6e0e514b22b647d007e","sha256:1cd240bf31df4a65ee6e79066df7bebbbb881424c34b5f920372e004c49f9385"],"state_sha256":"a1f90c59ba2699c3f5334edbc39e6cd24f400cec00bc2df0df5dae9c31a015ef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a4M5l0ifekGmYNtzT8d3gWLRS2CCkvW9FPqvuCG4xWQ1Ofn2Gdxw2kiBVjyaeEOP9ac/KxuVY8Q0krIi+RGJBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T18:17:56.941937Z","bundle_sha256":"71728e1d1267cb98a163489cf8ccafeeae448e5cb7bb96ca48ce54ddf99b0202"}}