Let’s say I’m a saas vendor that has some web product, it doesn’t need user profiles as such, just gated access. Without need to take credit card payments, one can sell a token that provides access, and know that the api to query its status is going to be stable and eternal. It simplifies a particular use case that I think works.

Ok now how do I do it with storage in some eternal way that doesn’t required a trusted third party. And not having to maintain any kind of session or user state mapping between my app and the oauth2 or saml provider.

Ya know, about 14 years ago something happened where we could maintain these eternal data structures with rules around state mutation. Humanity is only learning the power of such structures a decade later. There are very much unique problems being solved here and you are missing the dark forest for the legacy trees.