Let's take another concept: Don't build your authentication on the idea of communication strictly through immutable cryptographic tokens (JWT). They do shine fo

Let's take another concept: Don't build your authentication on the idea of communication strictly through immutable cryptographic tokens (JWT). They do shine for resource sharing and caching though! So if someone completely rejected the idea of using cryptographic tokens completely, I'd say, wait a second... So don't use blockchain to create a digital currency, or anything decentralized because it still needs a central authority to determine the truth. What is the actual use case then?! What app uses it successfully and solves problems that were hard to solve before? I'm sincere, BTW. You sound like you have some examples in mind.