2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/168755We prove the existence of integral canonical models of unitary Shimura varieties in arbitrary unramified mixed characteristic. Errata to [Va1] are also included.27 pages. Accepted (in final form) for publication in Asian J. MathNumber TheoryAlgebraic Geometry11G10, 11G18, 14F30, 14G35, 14G40, and 14K10text