This adds one concrete DID URL matrix parameter.

Description: Identifies a set of keys from the DID Document by key type.

Example: did:example:1234;key-type=Ed25519VerificationKey2018

-1 to merging as is because I don't know what the purpose of this parameter is and because it seems like it would tend to produce a set of keys whilst losing their authorized purpose (which could be dangerous). It is also "key" specific, not allowing for other types (i.e., why not "type="?).

did:example:1234;key-type=Ed25519VerificationKey2018

I don't understand the use case here... why can't you just write a function to go through the DID Document and fetch all of these keys?

I'm trying to understand where we'd put a value like this -- did:example:1234;key-type=Ed25519VerificationKey2018 ... like, we'd put it in a database table because we'd want to get the set of all Ed25519VerificationKey2018s, but I'm struggling to figure out why we'd put this value in a database table vs. just write a function to extract what we want from the DID Document?

I believe the consensus on this was that its not a good idea, and we should close this PR.

I believe the consensus on this was that its not a good idea, and we should close this PR.

Agreed... @peacekeeper can we close this PR?

@peacekeeper can we close this?

@msporny @brentzundel @burnburn can we get labels on all the open PRs related to changes that have matrix parameters in them, and mark them as "pending-close"... we have a lot of PRs open... PRs should not remain open unless they are being worked on / going to be merged within a week or 2.... we are loosing the ability to focus reviews on things that need reviews...

Marked pending close after the resolution 1 on the 4/7/2020 call.

Marked pending close after the resolution 1 on the 4/7/2020 call.

I agree this should be closed, but the reason for closing is that there has been consensus that there is no need for having key-type as a DID parameter in the DID URL. The resolution on the 2020-04-07 call was about the syntax of DID parameters, which is independent of the question which DID parameters we want.

Let's take this up on the next special topic call since we're still discussing the general area of DID Parameters.

Let's take this up on the next special topic call since we're still discussing the general area of DID Parameters.

Sounds good, I'll hold off on taking any other action until I see confirmation from an editor or chair and will instead prompt others to take action if I see it becomes stale.