I have been working with @linuskendall on onboarding solana blockchain data to filecoin. The data is encoded with dag-cbor.

We are thinking of supporting retrievals (backed by Saturn) in an IPFS gateway. The intended UX was similar to what a user gets with a unixfs dag in ipfs gateway — they see directories that they can click into till they get to a file, at which point they can decide to download it.

Unfortunately this doesn’t work with dag-cbor — relevant slack thread . With Kubo 0.18, it recognises the block as dag-cbor and gives the user a helpful message, however, the user still has to download the block and then decode it themselves.

A user should be able to start at the epoch level, and go down the dag to the point where they want to start downloading, and then download everything under — similar to unixfs.