DID Protocol Version Support about universal-resolver

[peacekeeper]

Yes this makes total sense, and the Universal Resolver actually already supports this kind of architecture where it can simply call another remote resolver instead of invoking a local Docker container. This is similar to how DNS servers sometimes rely on other DNS servers for lookups.

In the configuration file some entries have an image field (for Dockerized drivers), and some entries have a url field (for retrieving DID Documents via HTTP).

In fact did:v1 and did:ipid currently already work that way - the Universal Resolver simply calls a remote HTTP endpoint for retrieving the DID Document. Of course this has trust implications.

In the DID Resolution spec there are some early thoughts on different Resolver architectures:
https://w3c-ccg.github.io/did-resolution/#architectures

We also need to keep track of driver versions. This is supposed to happen here but unfortunately is not very well maintained yet:
https://github.com/decentralized-identity/universal-resolver#drivers

[OR13]

@peacekeeper thanks! these are super helpful. I have no excuse not to open some PRs and finish the documentation.