In a thread on Filecoin's public slack, @willscott suggested a deterministic translation between other forms of CIDv1 and dataURIs used commonly in modern browsers for JS embeds, caching image asset downloads, etc. This seems to dovetail with usecases explored by LUCID, so I will likely be proposing at least a FAQ entry, maybe also some entries in multicodec or multibase in a PR in the coming weeks.