If we want a DID method that is "strongly-consistent, recoverable, and allows for key rotation"1 then the options are a central registry or blockchains ... no?
An interesting development from the #ATProto world: a look at how to construct a fully decentralised #DID method using a distributed hash table. I doubt the Atmosphere will adopt it, but it does seem like more or less the kind of thing we need for nomadic identity.

https://nelind.leaflet.pub/3mxyxlwklss2l

#FediDev #FEPef61 #PortableObjects