I think, blockchains are a reasonably well understood mechanism, albeit not the one with the best performance characteristics. If you look into the specs for d

I think, blockchains are a reasonably well understood mechanism, albeit not the one with the best performance characteristics. If you look into the specs for decentralized identifiers (DIDs), they don't define how a "method" needs to implement its interface. There are solutions that use blockchains (Ethereum), others use DAGs (IPFS, IOTA) and some are even static without any server required.