Golem is a demonstration of how to distribute content over ActivityPub securely over peer to peer networks.

The problems this demo is trying to address are:

• Nodes go down, and their content tends to go with them. How can we have content that survives? Content which is distributable over a peer to peer network seems like it would help.
• Except if an entire network is helping hold onto and distribute content, how do we keep private content private?
• How to do this in a way that is compatible with the ActivityPub specification?

By encrypting the file and splitting it into chunks distributed through the network and only sharing the decryption key with the intended recipient, and by using a URI scheme that captures the appropriate information, we can accomplish all the above. Golem uses the magenc extension of the magnet URI scheme to accomplish the above.