Feature or Enhancement?

• (x) New feature
• ( ) Enhancement of existing feature

Description

The Gossip (Application Discovery) section of the spec says the following:

To enable additional functionality, primarily to allow nodes that run a shared
application to find each other across the network, a gossip application will be
included. This application will use broadcasts and sends to transmit Packages to
peers and thus disseminate them across the network.

There are three types of gossip Packages: a Message, a Notification, and a
Request. Each Package body will start with a 1-byte type field which will be
0xf0 for a Message, 0x0f for a Notification, and 0x00 for a Request.

A Message Package contains the following:

• 1 type: 0xf0
• 16 topic_id: half_sha256 of the topic data
• 0+ data: the data for the topic subscribers to injest

A Notification Package contains the following:

• 1 type: 0x0f
• 16 message_id: the half_sha256 of the serialized Message

A Request Package contains the following:

• 1 type: 0x00
• 16 message_id: the half_sha256 of the serialized Message received in a Notification

Additional context