Statistical Harmonization of Territorial Series Across Changing Geographies // Builds, validates, seals and applies weighting matrices ('crosswalks') to carry statistical series across changing zoning systems, such as the transition from the 112 Unidades de Planeamiento Zonal (UPZ) to the 33 Unidades de Planeamiento Local (UPL) in Bogota (Decree 555 of 2021). Implements the 'tejo-crosswalk/0.2' specification shared with the 'Python' package 'tejo': 'sha256'-sealed artifacts, non- negative weights that sum to one for each source unit, dasymetric weighting with vector ancillary data via 'sf', rates that are never interpolated directly, and missing values that propagate instead of being silently imputed. Methods: Tobler (1979) doi:10.1080/01621459.1979.10481647; Mennis (2003) doi:10.1111/0033-0124.10042. Descripcion en espanol: construye, valida, sella y aplica matrices de ponderadores ('crosswalks') para trasladar series estadisticas entre mallas geograficas que cambian, como la transicion de UPZ a UPL en Bogota (Decreto 555 de 2021): integridad por 'sha256', pesos no negativos que suman uno por unidad fuente, metodo dasimetrico con ancilar vectorial via 'sf', tasas que nunca se interpolan directamente y valores faltantes que se propagan en lugar de imputarse.