&gt; Except a non-commercial identity provider would be wonderful.<p>We&#x27;ve had that all along. It&#x27;s called email. It&#x27;s decentralized. There are already numerous free providers. There are already numerous commercial providers. You can even be your own provider, if you want. You can have multiple identities, and they can be as loosely or as tightly tied to your actual identity as you want. Many services or web site will already let you use an email address, along with a password, to authenticate. What you&#x27;re asking for already exists!