> Freenet not only transmits data between nodes but actually stores them, working as a huge distributed cache.
> While users can insert data into the network, there is no way to delete data. Due to Freenet's anonymous nature the original publishing node or owner of any piece of data is unknown. The only way data can be removed is if users don't request it.
https://en.wikipedia.org/wiki/Freenet#Distributed_storage_an...
You allocate a certain amount of space on your machine to an encrypted cache, that you can't even decrypt yourself or even know what it contains.
So there's no way to prove that someone even accessed a certain chunk of data, unless they saved it unencrypted to their machine, which I guess is what the Feds need to prove.