I keep envisioning schemes where your last-resort backup of your media archive is just a list of file names and content hashes, and if you lose your copies you can just use a cloud service to retrieve new files with those hashes.
Suggest it to the folks who run The Pirate Bay.
They probably know about it already. I think the eDonkey network is pretty much what I envision. The problem is that the network needs to be very comprehensive and long-lived to be a reliable solution that can be actually expected to find someone's copy of most of the obscure downloads you want to hang on to, and things that people try to sue into oblivion whenever they get too big have trouble being either. There's also the matter of agreeing on the hash function to use, since hash functions come with a shelf-life. A system made in the 90s that uses the M...
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