fedimovies/FEDERATION.md

ActivityPub federation in Mitra

Mitra largely follows the ActivityPub server-to-server specification but it makes uses of some non-standard extensions, some of which are required for interacting with it.

The following activities are supported:

• Accept(Follow)
• Reject(Follow)
• Undo(Follow)
• Create(Note)
• Delete(Note)
• Like(Note)
• Undo(Like)
• Announce(Note)
• Undo(Announce)
• Follow(Person)
• Update(Person)

And these additional standards:

• Http Signatures
• NodeInfo
• WebFinger

Activities are implemented in way that is compatible with Pleroma, Mastodon and other popular ActivityPub servers.

Profile extensions

Cryptocurrency addresses

Cryptocurrency addresses are represented as PropertyValue attachments where name attribute is a currency symbol prefixed with $:

{
  "name": "$XMR",
  "type": "PropertyValue",
  "value": "8Ahza5RM4JQgtdqvpcF1U628NN5Q87eryXQad3Fy581YWTZU8o3EMbtScuioQZSkyNNEEE1Lkj2cSbG4VnVYCW5L1N4os5p"
}

Identity proofs

Identity proofs are represented as attachments of IdentityProof type:

{
  "name": "<did>",
  "type": "IdentityProof",
  "signatureAlgorithm": "<proof-type>",
  "signatureValue": "<proof>"
}