{ "description": "Official TSE electoral-poll REGISTRY metadata (Brazil 2026). 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PESQUISAS", "source_credibility": 3, "event_date": "2026-06-15" }, { "register_tse": "BR013262026", "institute": "AtlasIntel", "scope": "state", "uf": "BR", "sample_size": 1200, "field_start": "2026-06-09", "field_end": "2026-06-14", "publication_date": "2026-06-15", "registration_date": "2026-06-09", "cost": 75000, "confidence_score": 0.8, "source_name": "AtlasIntel", "source_credibility": 3, "event_date": "2026-06-15" }, { "register_tse": "BR014282026", "institute": "INSTITUTO DATA AZ DE PESQUISA LTDA", "scope": "state", "uf": "BR", "sample_size": 1200, "field_start": "2026-05-28", "field_end": "2026-06-06", "publication_date": "2026-06-15", "registration_date": "2026-06-09", "cost": 15000, "confidence_score": 0.6, "source_name": "INSTITUTO DATA AZ DE PESQUISA LTDA", "source_credibility": 3, "event_date": "2026-06-15" }, { "register_tse": "BR038572026", "institute": "Doxa", "scope": "state", "uf": "BR", "sample_size": 2000, "field_start": "2026-06-08", "field_end": "2026-06-14", 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