We started as an IPFS implementation, but since then the scope of iroh has been reduced. Iroh is not IPFS, but more like libp2p.

If you want something like a globally distributed internet archive you would have to use protocols on top of iroh. For example iroh-blobs provides verified streaming of content-addressed data using the BLAKE3 tree hash function. It is very close to itself being 1.0 (probably Q3), but for now it requires you to know from where to stream the data.

What is missing to fully replace IPFS is a global distributed content discovery system. This is a really hard problem that IPFS itself never solved reliably in my opinion.

I also still want this to happen eventually, but the first step is to get the connection layer super reliable and fast, which we have done.

I wish you could also delegate this problem to the mainline DHT, but alas that is not possible because of some mainline limitiations. So I am working on the side on a new DHT, see https://www.iroh.computer/blog/lets-write-a-dht-1

Is content discovery on the official roadmap? If the original peer say peer A goes offline but B downloaded $X, can see find B and download, validate the content today?

Sorry if this has been answered or covered on the web I'm currently travelling.

Edit: I managed to read the linked page, thank you for working on such an amazing project!