with an Electronic Identity Card (Carta d'Identità Elettronica/CIE) or an electronic passport, identifying through the app of the providers downloadable from the stores
via webcam with operator made available by the provider or with an audio-video selfie along with the payment by bank transfer (a symbolic amount used only for identity verification) in person at the offices of the digital identity providers You can contact one of the 9 digital identity providers authorized by the Agency for Digital Italy and available on the page How to activate SPID along with all the information on the different recognition methods.