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+---
+slug: "03c1"
+authors: helge <@helge@mymath.rocks>
+status: DRAFT
+dateReceived: 2023-11-10
+---
+# FEP-03c1: Actors without acct-URI
+
+## Summary
+
+Most current Fediverse applications use an acct-URI as unique display name
+for actors. Usually, this display is done by displaying `acct:user@domain.example`
+as `@user@domain.example`. This FEP states that if there is no
+acct-URI associated with an actor, the actor should be displayed
+as its id. So the actor with id `https://actor.example/path` will be
+displayed as `https://actor.example/path`.
+
+In addition to the example below, we wish to point out that further independence of webfinger will enable new features such as using domain names as handles.
+
+## Example: RSS
+
+Consider building an application that posts new entries of an RSS
+feed to the Fediverse. Let's assume we are interested in the updates
+of the [bovine python library](https://pypi.org/project/bovine/)
+available through RSS at [https://pypi.org/rss/project/bovine/releases.xml](https://pypi.org/rss/project/bovine/releases.xml).
+Then an uri for this actor might look like
+
+```url
+https://rss.example/actor?feed=https%3A%2F%2Fpypi.org%2Frss%2Fproject%2Fbovine%2Freleases.xml
+```
+
+This would enable `rss.example` to automatically generate the respective actor and generate an actor object like
+
+```json
+{
+    "@context": "https://www.w3.org/ns/activitystreams",
+    "id": "https://rss.example/actor?feed=https%3A%2F%2Fpypi.org%2Frss%2Fproject%2Fbovine%2Freleases.xml",
+    "type": "Service",
+    "inbox": "https://rss.example/inbox?feed=https%3A%2F%2Fpypi.org%2Frss%2Fproject%2Fbovine%2Freleases.xml",
+    "outbox": "https://rss.example/outbox?feed=https%3A%2F%2Fpypi.org%2Frss%2Fproject%2Fbovine%2Freleases.xml",
+    "followers": "https://rss.example/followers?feed=https%3A%2F%2Fpypi.org%2Frss%2Fproject%2Fbovine%2Freleases.xml",
+    "name": "PyPI recent updates for bovine",
+    "url": "https://pypi.org/project/bovine/",
+    "summary": "Recent updates to the Python Package Index for bovine"
+}
+```
+
+There is now no obvious choice for `preferredUsername` and thus acct-URI.
+If one wanted to create one, the best choice would probably be to hash the url of the feed. This unfortunately has the consequence of not generating a human readable id, but quite the opposite.
+
+## Copyright
+
+CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
+
+To the extent possible under law, the authors of this Fediverse Enhancement Proposal have waived all copyright and related or neighboring rights to this work.