Telefónica, a Spanish telecommunications giant, has now become a system integrator for Polygon's identity solution Privado ID. Telefónica Tech, Telefónica's digital business unit, will integrate Privado ID's tools into its managed blockchain service, TrustOS, according to a September 10 announcement. The collaboration aims to develop proofs of concept for a variety of digital identity use cases, including age verification, digital national identity, electronic signature solutions, and content...