http://xa63tpfoaqt3zru2ehxjjfbpadwj4ha6qsdvtcqtyr3b7hmt4iaq.b32.i2p/spec.html
They contain one of four reference types, plus a bencoded
set of attributes: Type: url
Attributes:
* net: what network the URL is on, such as "i2p", "tor", "ip", or "freenet" (string)
* url: network-specific URL (string)
* name: [optional] short name of the resource referenced (string)
* desc: [optional] longer description of the resource (string)
* tag: [optional] list of tags attached to the reference (string[]) Type: channel Attributes:
* channel: [1] base64 of...