fedimovies/FEDERATION.md

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2022-04-13 10:43:19 +00:00
# ActivityPub federation in Mitra
Mitra largely follows the [ActivityPub](https://www.w3.org/TR/activitypub/) server-to-server specification but it makes uses of some non-standard extensions, some of which are required for interacting with it.
2022-04-13 10:43:19 +00:00
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](https://datatracker.ietf.org/doc/html/draft-cavage-http-signatures)
- [NodeInfo](https://nodeinfo.diaspora.software/)
- [WebFinger](https://webfinger.net/)
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 `$`:
```json
{
"name": "$XMR",
"type": "PropertyValue",
"value": "8Ahza5RM4JQgtdqvpcF1U628NN5Q87eryXQad3Fy581YWTZU8o3EMbtScuioQZSkyNNEEE1Lkj2cSbG4VnVYCW5L1N4os5p"
}
```
### Identity proofs
Identity proofs are represented as attachments of `IdentityProof` type:
```json
{
"name": "<did>",
"type": "IdentityProof",
"signatureAlgorithm": "<proof-type>",
"signatureValue": "<proof>"
}
```