{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1996:YGPR5RJ66WRLF7CREE536GZ45J","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":"207dcf39468b85853c2003a81253dd80e1b49d5fc4a5418cc9f167ee29d1282e","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1996-03-04T06:00:26Z","title_canon_sha256":"6ca3f4b84b7037898a7209b9467ab9e0f2a971b0c83e87494e6e5381e32efa60"},"schema_version":"1.0","source":{"id":"hep-ph/9603212","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9603212","created_at":"2026-05-18T01:08:05Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9603212v5","created_at":"2026-05-18T01:08:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9603212","created_at":"2026-05-18T01:08:05Z"},{"alias_kind":"pith_short_12","alias_value":"YGPR5RJ66WRL","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"YGPR5RJ66WRLF7CR","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"YGPR5RJ6","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:afe1c05cdc2a901e78b3e6d08f564347c08e9db148bfff564cc0e7c054769f0d","target":"graph","created_at":"2026-05-18T01:08:05Z","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":"In this paper, we investigate the possibility of explaining both the R_b excess and the R_c deficit reported by the LEP experiments through Z-Z' mixing effects. We have constructed a set of models consistent with a restrictive set of principles: unification of the Standard Model (SM) gauge couplings, vector- like additional matter, and couplings which are both generation-independent and leptophobic. These models are anomaly-free, perturbative up to the GUT scale, and contain realistic mass spectra. Out of this class of models, we find three explicit realizations which fit the LEP data to a far","authors_text":"Chris Kolda, John March-Russell (Institute for Advanced Study, K.S. Babu, Princeton)","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1996-03-04T06:00:26Z","title":"Leptophobic U(1)'s and the R_b - R_c Crisis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9603212","kind":"arxiv","version":5},"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":"sha256:7a58968dc2a9b6b888ce89e3608559acc36be7ea94b4f26a5f26d4bbae8efcf1","target":"record","created_at":"2026-05-18T01:08:05Z","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":"207dcf39468b85853c2003a81253dd80e1b49d5fc4a5418cc9f167ee29d1282e","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1996-03-04T06:00:26Z","title_canon_sha256":"6ca3f4b84b7037898a7209b9467ab9e0f2a971b0c83e87494e6e5381e32efa60"},"schema_version":"1.0","source":{"id":"hep-ph/9603212","kind":"arxiv","version":5}},"canonical_sha256":"c19f1ec53ef5a2b2fc51213bbf1b3cea516acae8a1c1afd199fe7ad782a5c542","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c19f1ec53ef5a2b2fc51213bbf1b3cea516acae8a1c1afd199fe7ad782a5c542","first_computed_at":"2026-05-18T01:08:05.719185Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:08:05.719185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Aw1nlyC3+yKT0UN9wZ6HA4mIELuy9yH4JYL4xbgz2L+v13TWhD5IFhr+MdtLKwTL4/ZGLM2jOC0vTIYnHQODDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:08:05.719715Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9603212","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a58968dc2a9b6b888ce89e3608559acc36be7ea94b4f26a5f26d4bbae8efcf1","sha256:afe1c05cdc2a901e78b3e6d08f564347c08e9db148bfff564cc0e7c054769f0d"],"state_sha256":"726600bcd25b74dbd7de778c14ad45bc49ffcfdf50c2bf0f393f2487bfb9bf94"}