diff --git a/lib/eventos/actors/actor.ex b/lib/eventos/actors/actor.ex
index 92f3acce3..4b010ca45 100644
--- a/lib/eventos/actors/actor.ex
+++ b/lib/eventos/actors/actor.ex
@@ -46,7 +46,7 @@ defmodule Eventos.Actors.Actor do
 
   import Logger
 
-#  @type t :: %Actor{description: String.t, id: integer(), inserted_at: DateTime.t, updated_at: DateTime.t, display_name: String.t, domain: String.t, private_key: String.t, public_key: String.t, suspended: boolean(), url: String.t, username: String.t, organized_events: list(), groups: list(), group_request: list(), user: User.t, field: ActorTypeEnum.t}
+#  @type t :: %Actor{description: String.t, id: integer(), inserted_at: DateTime.t, updated_at: DateTime.t, display_name: String.t, domain: String.t, keys: String.t, suspended: boolean(), url: String.t, username: String.t, organized_events: list(), groups: list(), group_request: list(), user: User.t, field: ActorTypeEnum.t}
 
   schema "actors" do
     field :url, :string
@@ -55,13 +55,12 @@ defmodule Eventos.Actors.Actor do
     field :following_url, :string
     field :followers_url, :string
     field :shared_inbox_url, :string
-    field :type, Eventos.Actors.ActorTypeEnum
+    field :type, Eventos.Actors.ActorTypeEnum, default: :Person
     field :name, :string
     field :domain, :string
     field :summary, :string
     field :preferred_username, :string
-    field :public_key, :string
-    field :private_key, :string
+    field :keys, :string
     field :manually_approves_followers, :boolean, default: false
     field :suspended, :boolean, default: false
     field :avatar_url, :string
@@ -77,24 +76,25 @@ defmodule Eventos.Actors.Actor do
   @doc false
   def changeset(%Actor{} = actor, attrs) do
     actor
-    |> Ecto.Changeset.cast(attrs, [:url, :outbox_url, :inbox_url, :shared_inbox_url, :following_url, :followers_url, :type, :name, :domain, :summary, :preferred_username, :public_key, :private_key, :manually_approves_followers, :suspended, :avatar_url, :banner_url])
-    |> validate_required([:preferred_username, :public_key, :suspended, :url])
+    |> Ecto.Changeset.cast(attrs, [:url, :outbox_url, :inbox_url, :shared_inbox_url, :following_url, :followers_url, :type, :name, :domain, :summary, :preferred_username, :keys, :manually_approves_followers, :suspended, :avatar_url, :banner_url])
+    |> validate_required([:preferred_username, :keys, :suspended, :url])
     |> unique_constraint(:prefered_username, name: :actors_preferred_username_domain_index)
   end
 
   def registration_changeset(%Actor{} = actor, attrs) do
     actor
-    |> Ecto.Changeset.cast(attrs, [:preferred_username, :domain, :name, :summary, :private_key, :public_key, :suspended, :url, :type])
-    |> validate_required([:preferred_username, :public_key, :suspended, :url, :type])
-    |> unique_constraint(:prefered_username, name: :actors_preferred_username_domain_index)
+    |> Ecto.Changeset.cast(attrs, [:preferred_username, :domain, :name, :summary, :keys, :keys, :suspended, :url, :type, :avatar_url])
+    |> unique_constraint(:preferred_username, name: :actors_preferred_username_domain_index)
+    |> put_change(:url, "#{EventosWeb.Endpoint.url()}/@#{attrs["prefered_username"]}")
+    |> validate_required([:preferred_username, :keys, :suspended, :url, :type])
   end
 
   @email_regex ~r/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/
   def remote_actor_creation(params) do
     changes =
       %Actor{}
-      |> Ecto.Changeset.cast(params, [:url, :outbox_url, :inbox_url, :shared_inbox_url, :following_url, :followers_url, :type, :name, :domain, :summary, :preferred_username, :public_key, :manually_approves_followers, :avatar_url, :banner_url])
-      |> validate_required([:url, :outbox_url, :inbox_url, :type, :name, :domain, :preferred_username, :public_key])
+      |> Ecto.Changeset.cast(params, [:url, :outbox_url, :inbox_url, :shared_inbox_url, :following_url, :followers_url, :type, :name, :domain, :summary, :preferred_username, :keys, :manually_approves_followers, :avatar_url, :banner_url])
+      |> validate_required([:url, :outbox_url, :inbox_url, :type, :name, :domain, :preferred_username, :keys])
       |> unique_constraint(:preferred_username, name: :actors_preferred_username_domain_index)
       |> validate_length(:summary, max: 5000)
       |> validate_length(:preferred_username, max: 100)
@@ -135,20 +135,31 @@ defmodule Eventos.Actors.Actor do
   #@spec get_public_key_for_url(Actor.t) :: {:ok, String.t}
   def get_public_key_for_url(url) do
     with %Actor{} = actor <- get_or_fetch_by_url(url) do
-      get_public_key_for_actor(actor)
+      actor
+      |> get_keys_for_actor
+      |> Eventos.Service.ActivityPub.Utils.pem_to_public_key
     else
       _ -> :error
     end
   end
 
+  @deprecated "Use get_keys_for_actor/1 instead"
   #@spec get_public_key_for_actor(Actor.t) :: {:ok, String.t}
   def get_public_key_for_actor(%Actor{} = actor) do
-    {:ok, actor.public_key}
+    {:ok, actor.keys}
   end
 
+  @doc """
+  Returns a pem encoded keypair (if local) or public key
+  """
+  def get_keys_for_actor(%Actor{} = actor) do
+    actor.keys
+  end
+
+  @deprecated "Use get_keys_for_actor/1 instead"
   #@spec get_private_key_for_actor(Actor.t) :: {:ok, String.t}
   def get_private_key_for_actor(%Actor{} = actor) do
-    actor.private_key
+    actor.keys
   end
 
   def get_followers(%Actor{id: actor_id} = actor) do
diff --git a/lib/eventos/actors/actors.ex b/lib/eventos/actors/actors.ex
index f8373fb1e..4916bc8a6 100644
--- a/lib/eventos/actors/actors.ex
+++ b/lib/eventos/actors/actors.ex
@@ -185,7 +185,7 @@ defmodule Eventos.Actors do
 
   def insert_or_update_actor(data) do
     cs = Actor.remote_actor_creation(data)
-    Repo.insert(cs, on_conflict: [set: [public_key: data.public_key, avatar_url: data.avatar_url, banner_url: data.banner_url, name: data.name]], conflict_target: [:preferred_username, :domain])
+    Repo.insert(cs, on_conflict: [set: [keys: data.keys, avatar_url: data.avatar_url, banner_url: data.banner_url, name: data.name]], conflict_target: [:preferred_username, :domain])
   end
 
 #  def increase_event_count(%Actor{} = actor) do
@@ -335,16 +335,25 @@ defmodule Eventos.Actors do
   Register user
   """
   def register(%{email: email, password: password, username: username}) do
-    #{:ok, {privkey, pubkey}} = RsaEx.generate_keypair("4096")
-    {:ok, rsa_priv_key} = ExPublicKey.generate_key()
-    {:ok, rsa_pub_key} = ExPublicKey.public_key_from_private_key(rsa_priv_key)
+    key = :public_key.generate_key({:rsa, 2048, 65537})
+    entry = :public_key.pem_entry_encode(:RSAPrivateKey, key)
+    pem = :public_key.pem_encode([entry]) |> String.trim_trailing()
+
+    import Exgravatar
+
+    avatar_url = gravatar_url(email, default: "404")
+    avatar = case HTTPoison.get(avatar_url) do
+      {:ok, %HTTPoison.Response{status_code: 200}} ->
+        avatar_url
+      _ ->
+        nil
+    end
 
     actor = Eventos.Actors.Actor.registration_changeset(%Eventos.Actors.Actor{}, %{
       preferred_username: username,
       domain: nil,
-      private_key: rsa_priv_key |> ExPublicKey.pem_encode(),
-      public_key: rsa_pub_key |> ExPublicKey.pem_encode(),
-      url: EventosWeb.Endpoint.url() <> "/@" <> username,
+      keys: pem,
+      avatar_url: avatar,
     })
 
     user = Eventos.Actors.User.registration_changeset(%Eventos.Actors.User{}, %{
@@ -361,7 +370,7 @@ defmodule Eventos.Actors do
       {:ok, user}
     rescue
      e in Ecto.InvalidChangesetError ->
-      {:error, e.changeset.changes.user.errors}
+      {:error, e.changeset}
     end
   end
 
@@ -370,15 +379,10 @@ defmodule Eventos.Actors do
     entry = :public_key.pem_entry_encode(:RSAPrivateKey, key)
     pem = :public_key.pem_encode([entry]) |> String.trim_trailing()
 
-    {:ok, rsa_priv_key} = ExPublicKey.generate_key()
-    {:ok, rsa_pub_key} = ExPublicKey.public_key_from_private_key(rsa_priv_key)
-
     actor = Eventos.Actors.Actor.registration_changeset(%Eventos.Actors.Actor{}, %{
       preferred_username: name,
       domain: nil,
-      private_key: pem,
-      public_key: "toto",
-      url: EventosWeb.Endpoint.url() <> "/@" <> name,
+      keys: pem,
       summary: summary,
       type: :Service
     })
@@ -387,7 +391,7 @@ defmodule Eventos.Actors do
       Eventos.Repo.insert!(actor)
     rescue
       e in Ecto.InvalidChangesetError ->
-        {:error, e}
+        {:error, e.changeset}
     end
   end
 
diff --git a/lib/eventos/addresses/address.ex b/lib/eventos/addresses/address.ex
index 97737722f..8f3f016f1 100644
--- a/lib/eventos/addresses/address.ex
+++ b/lib/eventos/addresses/address.ex
@@ -26,5 +26,6 @@ defmodule Eventos.Addresses.Address do
   def changeset(%Address{} = address, attrs) do
     address
     |> cast(attrs, [:description, :floor, :geom, :addressCountry, :addressLocality, :addressRegion, :postalCode, :streetAddress])
+    |> validate_required([:streetAddress])
   end
 end
diff --git a/lib/eventos/events/comment.ex b/lib/eventos/events/comment.ex
index 0422a452c..e43e72bc4 100644
--- a/lib/eventos/events/comment.ex
+++ b/lib/eventos/events/comment.ex
@@ -10,7 +10,9 @@ defmodule Eventos.Events.Comment do
     field :text, :string
     field :url, :string
     field :local, :boolean, default: true
+    field :uuid, Ecto.UUID
     belongs_to :actor, Actor, [foreign_key: :actor_id]
+    belongs_to :attributed_to, Actor, [foreign_key: :attributed_to_id]
     belongs_to :event, Event, [foreign_key: :event_id]
     belongs_to :in_reply_to_comment, Comment, [foreign_key: :in_reply_to_comment_id]
     belongs_to :origin_comment, Comment, [foreign_key: :origin_comment_id]
@@ -20,8 +22,11 @@ defmodule Eventos.Events.Comment do
 
   @doc false
   def changeset(comment, attrs) do
+    uuid = Ecto.UUID.generate()
     comment
-    |> cast(attrs, [:url, :text, :actor_id, :event_id, :in_reply_to_comment_id])
-    |> validate_required([:url, :text, :actor_id])
+    |> cast(attrs, [:url, :text, :actor_id, :event_id, :in_reply_to_comment_id, :attributed_to_id])
+    |> validate_required([:text, :actor_id])
+    |> put_change(:uuid, uuid)
+    |> put_change(:url, "#{EventosWeb.Endpoint.url()}/comments/#{uuid}")
   end
 end
diff --git a/lib/eventos/events/event.ex b/lib/eventos/events/event.ex
index 3a98a9bfd..653d9a9d8 100644
--- a/lib/eventos/events/event.ex
+++ b/lib/eventos/events/event.ex
@@ -53,6 +53,7 @@ defmodule Eventos.Events.Event do
     field :publish_at, Timex.Ecto.DateTimeWithTimezone
     field :uuid, Ecto.UUID, default: Ecto.UUID.generate()
     belongs_to :organizer_actor, Actor, [foreign_key: :organizer_actor_id]
+    belongs_to :attributed_to, Actor, [foreign_key: :attributed_to_id]
     many_to_many :tags, Tag, join_through: "events_tags"
     belongs_to :category, Category
     many_to_many :participants, Actor, join_through: Participant
@@ -65,17 +66,22 @@ defmodule Eventos.Events.Event do
 
   @doc false
   def changeset(%Event{} = event, attrs) do
-    changeset = event
+    uuid = Ecto.UUID.generate()
+
+    # TODO : check what's the use here. Tests ?
+    actor_url = if Map.has_key?(attrs, :organizer_actor) do
+      attrs.organizer_actor.preferred_username
+    else
+      ""
+    end
+    event
     |> cast(attrs, [:title, :description, :url, :begins_on, :ends_on, :organizer_actor_id, :category_id, :state, :status, :public, :thumbnail, :large_image, :publish_at])
     |> cast_assoc(:tags)
     |> cast_assoc(:address)
-    |> validate_required([:title, :description, :begins_on, :ends_on, :organizer_actor_id, :category_id])
     |> TitleSlug.maybe_generate_slug()
     |> TitleSlug.unique_constraint()
-    |> put_change(:uuid, Ecto.UUID.generate())
-
-    import Logger
-    Logger.debug(inspect changeset)
-    changeset
+    |> put_change(:uuid, uuid)
+    |> put_change(:url, "#{EventosWeb.Endpoint.url()}/@#{actor_url}/#{uuid}")
+    |> validate_required([:title, :description, :begins_on, :ends_on, :organizer_actor_id, :category_id, :url, :uuid])
   end
 end
diff --git a/lib/eventos/events/events.ex b/lib/eventos/events/events.ex
index 32f6a9729..50f8cabc3 100644
--- a/lib/eventos/events/events.ex
+++ b/lib/eventos/events/events.ex
@@ -152,10 +152,11 @@ defmodule Eventos.Events do
 
   """
   def create_event(attrs \\ %{}) do
-    %Event{}
-    |> Event.changeset(attrs)
-    |> Repo.insert!()
-    |> Repo.preload([:organizer_actor])
+    case %Event{} |> Event.changeset(attrs) |> Repo.insert() do
+      {:ok, %Event{} = event} -> {:ok, Repo.preload(event, [:organizer_actor])}
+      err -> err
+    end
+
   end
 
   @doc """
@@ -522,8 +523,13 @@ defmodule Eventos.Events do
   @doc """
   Returns the list of sessions for an event
   """
-  def list_sessions_for_event(event_id) do
-    Repo.all(from s in Session, where: s.event_id == ^event_id)
+  def list_sessions_for_event(event_uuid) do
+    Repo.all(
+      from s in Session,
+      join: e in Event,
+      on: s.event_id == e.id,
+      where: e.uuid == ^event_uuid
+    )
   end
 
   @doc """
@@ -741,6 +747,8 @@ defmodule Eventos.Events do
   """
   def get_comment!(id), do: Repo.get!(Comment, id)
 
+  def get_comment_with_uuid!(uuid), do: Repo.get_by!(Comment, uuid: uuid)
+
   @doc """
   Creates a comment.
 
diff --git a/lib/eventos/events/participant.ex b/lib/eventos/events/participant.ex
index 16c3f6cf5..cd1045aa9 100644
--- a/lib/eventos/events/participant.ex
+++ b/lib/eventos/events/participant.ex
@@ -9,8 +9,7 @@ defmodule Eventos.Events.Participant do
 
   @primary_key false
   schema "participants" do
-    field :role, :integer, default: 0 # 0 : participant, 1 : moderator, 2 : administrator, 3 : creator
-    field :approved, :boolean
+    field :role, :integer, default: 0 # 0 : not_approved, 1 : participant, 2 : moderator, 3 : administrator, 4 : creator
     belongs_to :event, Event, primary_key: true
     belongs_to :actor, Actor, primary_key: true
 
diff --git a/lib/eventos_web/controllers/activity_pub_controller.ex b/lib/eventos_web/controllers/activity_pub_controller.ex
index 6f079054d..47b01f927 100644
--- a/lib/eventos_web/controllers/activity_pub_controller.ex
+++ b/lib/eventos_web/controllers/activity_pub_controller.ex
@@ -17,8 +17,8 @@ defmodule EventosWeb.ActivityPubController do
     end
   end
 
-  def event(conn, %{"name" => name, "slug" => slug}) do
-    with %Event{} = event <- Events.get_event_full_by_name_and_slug!(name, slug) do
+  def event(conn, %{"uuid" => uuid}) do
+    with %Event{} = event <- Events.get_event_full_by_uuid(uuid) do
       conn
       |> put_resp_header("content-type", "application/activity+json")
       |> json(ObjectView.render("event.json", %{event: event}))
diff --git a/lib/eventos_web/controllers/bot_controller.ex b/lib/eventos_web/controllers/bot_controller.ex
index 5181a2744..c6de235b4 100644
--- a/lib/eventos_web/controllers/bot_controller.ex
+++ b/lib/eventos_web/controllers/bot_controller.ex
@@ -2,7 +2,7 @@ defmodule EventosWeb.BotController do
   use EventosWeb, :controller
 
   alias Eventos.Actors
-  alias Eventos.Actors.Bot
+  alias Eventos.Actors.{Bot, Actor}
 
   action_fallback EventosWeb.FallbackController
 
@@ -12,9 +12,9 @@ defmodule EventosWeb.BotController do
   end
 
   def create(conn, %{"bot" => bot_params}) do
-    with user <- Guardian.Plug.current_resource,
+    with user <- Guardian.Plug.current_resource(conn),
          bot_params <- Map.put(bot_params, "user_id", user.id),
-         {:ok, actor} <- Actors.register_bot_account(%{name: bot_params["name"], summary: bot_params["summary"]}),
+         %Actor{} = actor <- Actors.register_bot_account(%{name: bot_params["name"], summary: bot_params["summary"]}),
          bot_params <- Map.put(bot_params, "actor_id", actor.id),
          {:ok, %Bot{} = bot} <- Actors.create_bot(bot_params) do
       conn
diff --git a/lib/eventos_web/controllers/comment_controller.ex b/lib/eventos_web/controllers/comment_controller.ex
index af0560ab6..d8f096314 100644
--- a/lib/eventos_web/controllers/comment_controller.ex
+++ b/lib/eventos_web/controllers/comment_controller.ex
@@ -20,21 +20,21 @@ defmodule EventosWeb.CommentController do
     end
   end
 
-  def show(conn, %{"id" => id}) do
-    comment = Events.get_comment!(id)
+  def show(conn, %{"uuid" => uuid}) do
+    comment = Events.get_comment_with_uuid!(uuid)
     render(conn, "show.json", comment: comment)
   end
 
-  def update(conn, %{"id" => id, "comment" => comment_params}) do
-    comment = Events.get_comment!(id)
+  def update(conn, %{"uuid" => uuid, "comment" => comment_params}) do
+    comment = Events.get_comment_with_uuid!(uuid)
 
     with {:ok, %Comment{} = comment} <- Events.update_comment(comment, comment_params) do
       render(conn, "show.json", comment: comment)
     end
   end
 
-  def delete(conn, %{"id" => id}) do
-    comment = Events.get_comment!(id)
+  def delete(conn, %{"uuid" => uuid}) do
+    comment = Events.get_comment_with_uuid!(uuid)
     with {:ok, %Comment{}} <- Events.delete_comment(comment) do
       send_resp(conn, :no_content, "")
     end
diff --git a/lib/eventos_web/controllers/event_controller.ex b/lib/eventos_web/controllers/event_controller.ex
index 93e6c80f7..e4c43bc95 100644
--- a/lib/eventos_web/controllers/event_controller.ex
+++ b/lib/eventos_web/controllers/event_controller.ex
@@ -9,6 +9,8 @@ defmodule EventosWeb.EventController do
   alias Eventos.Export.ICalendar
   alias Eventos.Addresses
 
+  import Logger
+
   action_fallback EventosWeb.FallbackController
 
   def index(conn, _params) do
@@ -32,11 +34,7 @@ defmodule EventosWeb.EventController do
   end
 
   defp process_address(address) do
-    import Logger
-    Logger.debug("process address")
-    Logger.debug(inspect address)
     geom = EventosWeb.AddressController.process_geom(address["geom"])
-    Logger.debug(inspect geom)
     case geom do
       nil ->
         address
@@ -53,8 +51,12 @@ defmodule EventosWeb.EventController do
   end
 
   def show(conn, %{"uuid" => uuid}) do
-    event = Events.get_event_full_by_uuid(uuid)
-    render(conn, "show.json", event: event)
+    case Events.get_event_full_by_uuid(uuid) do
+      nil ->
+        send_resp(conn, 404, "")
+      event ->
+        render(conn, "show.json", event: event)
+    end
   end
 
   def export_to_ics(conn, %{"uuid" => uuid}) do
@@ -71,8 +73,8 @@ defmodule EventosWeb.EventController do
   end
 
   def delete(conn, %{"uuid" => uuid}) do
-    event = Events.get_event_by_uuid(uuid)
-    with {:ok, %Event{}} <- Events.delete_event(event) do
+    with event <- Events.get_event_by_uuid(uuid),
+      {:ok, %Event{}} <- Events.delete_event(event) do
       send_resp(conn, :no_content, "")
     end
   end
diff --git a/lib/eventos_web/controllers/session_controller.ex b/lib/eventos_web/controllers/session_controller.ex
index ac1454750..e66dea842 100644
--- a/lib/eventos_web/controllers/session_controller.ex
+++ b/lib/eventos_web/controllers/session_controller.ex
@@ -28,8 +28,8 @@ defmodule EventosWeb.SessionController do
     render(conn, "show.json", session: session)
   end
 
-  def show_sessions_for_event(conn, %{"id" => event_id}) do
-    sessions = Events.list_sessions_for_event(event_id)
+  def show_sessions_for_event(conn, %{"uuid" => event_uuid}) do
+    sessions = Events.list_sessions_for_event(event_uuid)
     render(conn, "index.json", sessions: sessions)
   end
 
diff --git a/lib/eventos_web/controllers/user_controller.ex b/lib/eventos_web/controllers/user_controller.ex
index fbbe872fc..98abb9ffa 100644
--- a/lib/eventos_web/controllers/user_controller.ex
+++ b/lib/eventos_web/controllers/user_controller.ex
@@ -16,16 +16,11 @@ defmodule EventosWeb.UserController do
   end
 
   def register(conn, %{"username" => username, "email" => email, "password" => password}) do
-    case Actors.register(%{email: email, password: password, username: username}) do
-      {:ok, %User{} = user} ->
-        {:ok, token, _claims} = EventosWeb.Guardian.encode_and_sign(user)
+    with {:ok, %User{} = user} <- Actors.register(%{email: email, password: password, username: username}),
+        {:ok, token, _claims} <- EventosWeb.Guardian.encode_and_sign(user) do
         conn
         |> put_status(:created)
         |> render("show_with_token.json", %{token: token, user: user})
-      {:error, error} ->
-        conn
-        |> put_resp_content_type("application/json")
-        |> send_resp(400, Poison.encode!(%{"msg" => handle_changeset_errors(error)}))
     end
   end
 
diff --git a/lib/eventos_web/router.ex b/lib/eventos_web/router.ex
index b10693c30..9ac52f102 100644
--- a/lib/eventos_web/router.ex
+++ b/lib/eventos_web/router.ex
@@ -44,8 +44,9 @@ defmodule EventosWeb.Router do
       get "/events/:uuid/tracks", TrackController, :show_tracks_for_event
       get "/events/:uuid/sessions", SessionController, :show_sessions_for_event
       get "/events/:uuid", EventController, :show
-      resources "/comments", CommentController, only: [:show]
-      get "/bots/:id", BotController, :view
+      get "/comments/:uuid", CommentController, :show
+      get "/bots/:id", BotController, :show
+      get "/bots", BotController, :index
 
       get "/actors", ActorController, :index
       get "/actors/search/:name", ActorController, :search
@@ -74,10 +75,13 @@ defmodule EventosWeb.Router do
        patch "/events/:uuid", EventController, :update
        put "/events/:uuid", EventController, :update
        delete "/events/:uuid", EventController, :delete
-       resources "/comments", CommentController, except: [:new, :edit, :show]
+       post "/comments", CommentController, :create
+       patch "/comments/:uuid", CommentController, :update
+       put "/comments/:uuid", CommentController, :update
+       delete "/comments/:uuid", CommentController, :delete
        #post "/events/:id/request", EventRequestController, :create_for_event
        resources "/participant", ParticipantController
-       resources "/bots", BotController, except: [:new, :edit, :show]
+       resources "/bots", BotController, except: [:new, :edit, :show, :index]
        #resources "/requests", EventRequestController
        post "/groups", GroupController, :create
        post "/groups/:name/join", GroupController, :join
@@ -110,7 +114,7 @@ defmodule EventosWeb.Router do
     get "/@:name/outbox", ActivityPubController, :outbox
     get "/@:name/following", ActivityPubController, :following
     get "/@:name/followers", ActivityPubController, :followers
-    get "/@:name/:slug", ActivityPubController, :event
+    get "/events/:uuid", ActivityPubController, :event
     post "/@:name/inbox", ActivityPubController, :inbox
     post "/inbox", ActivityPubController, :inbox
   end
diff --git a/lib/eventos_web/views/activity_pub/actor_view.ex b/lib/eventos_web/views/activity_pub/actor_view.ex
index b2ea02f3c..517c7d6b6 100644
--- a/lib/eventos_web/views/activity_pub/actor_view.ex
+++ b/lib/eventos_web/views/activity_pub/actor_view.ex
@@ -13,7 +13,8 @@ defmodule EventosWeb.ActivityPub.ActorView do
   import Ecto.Query
 
   def render("actor.json", %{actor: actor}) do
-    {:ok, public_key} = Actor.get_public_key_for_actor(actor)
+    pem = Actor.get_keys_for_actor(actor)
+    public_key = Eventos.Service.ActivityPub.Utils.pem_to_public_key_pem(pem)
 
     %{
       "id" => actor.url,
diff --git a/lib/eventos_web/views/comment_view.ex b/lib/eventos_web/views/comment_view.ex
index 4dd58edbd..17654fe43 100644
--- a/lib/eventos_web/views/comment_view.ex
+++ b/lib/eventos_web/views/comment_view.ex
@@ -12,7 +12,9 @@ defmodule EventosWeb.CommentView do
 
   def render("comment.json", %{comment: comment}) do
     %{id: comment.id,
+      uuid: comment.uuid,
       url: comment.url,
-      text: comment.text}
+      text: comment.text
+    }
   end
 end
diff --git a/lib/service/activity_pub/activity_pub.ex b/lib/service/activity_pub/activity_pub.ex
index fe974b41b..265a4dca5 100644
--- a/lib/service/activity_pub/activity_pub.ex
+++ b/lib/service/activity_pub/activity_pub.ex
@@ -253,7 +253,7 @@ defmodule Eventos.Service.ActivityPub do
       preferred_username: data["preferredUsername"],
       follower_address: data["followers"],
       summary: data["summary"],
-      public_key: data["publicKey"]["publicKeyPem"],
+      keys: data["publicKey"]["publicKeyPem"],
       inbox_url: data["inbox"],
       outbox_url: data["outbox"],
       following_url: data["following"],
diff --git a/lib/service/activity_pub/utils.ex b/lib/service/activity_pub/utils.ex
index 087a64242..ecee714d4 100644
--- a/lib/service/activity_pub/utils.ex
+++ b/lib/service/activity_pub/utils.ex
@@ -304,4 +304,31 @@ defmodule Eventos.Service.ActivityPub.Utils do
     }
     |> Map.merge(additional)
   end
+
+  @doc """
+  Converts PEM encoded keys to a public key representation
+  """
+  def pem_to_public_key(pem) do
+    [private_key_code] = :public_key.pem_decode(pem)
+    private_key = :public_key.pem_entry_decode(private_key_code)
+    {:RSAPrivateKey, _, modulus, exponent, _, _, _, _, _, _, _} = private_key
+    {:RSAPublicKey, modulus, exponent}
+  end
+
+  @doc """
+  Converts PEM encoded keys to a private key representation
+  """
+  def pem_to_private_key(pem) do
+    [private_key_code] = :public_key.pem_decode(pem)
+    :public_key.pem_entry_decode(private_key_code)
+  end
+
+  @doc """
+  Converts PEM encoded keys to a PEM public key representation
+  """
+  def pem_to_public_key_pem(pem) do
+    public_key = pem_to_public_key(pem)
+    public_key = :public_key.pem_entry_encode(:RSAPublicKey, public_key)
+    :public_key.pem_encode([public_key])
+  end
 end
diff --git a/lib/service/http_signatures/http_signatures.ex b/lib/service/http_signatures/http_signatures.ex
index 517f29650..05e01611b 100644
--- a/lib/service/http_signatures/http_signatures.ex
+++ b/lib/service/http_signatures/http_signatures.ex
@@ -32,7 +32,7 @@ defmodule Eventos.Service.HTTPSignatures do
     # TODO: How to get the right key and see if it is actually valid for that request.
     # For now, fetch the key for the actor.
     with actor_id <- conn.params["actor"],
-         {:ok, public_key_code} <- Actor.get_public_key_for_url(actor_id),
+         public_key_code <- Actor.get_public_key_for_url(actor_id),
          [public_key] = :public_key.pem_decode(public_key_code),
          public_key = :public_key.pem_entry_decode(public_key) do
       if validate_conn(conn, public_key) do
@@ -42,7 +42,7 @@ defmodule Eventos.Service.HTTPSignatures do
         # Fetch user anew and try one more time
         with actor_id <- conn.params["actor"],
              {:ok, _actor} <- ActivityPub.make_actor_from_url(actor_id),
-             {:ok, public_key_code} <- Actor.get_public_key_for_url(actor_id),
+             public_key_code <- Actor.get_public_key_for_url(actor_id),
              [public_key] = :public_key.pem_decode(public_key_code),
              public_key = :public_key.pem_entry_decode(public_key) do
             validate_conn(conn, public_key)
@@ -70,10 +70,8 @@ defmodule Eventos.Service.HTTPSignatures do
     |> Enum.join("\n")
   end
 
-  def sign(actor, headers) do
-    with {:ok, private_key_code} = Actor.get_private_key_for_actor(actor),
-         [private_key] = :public_key.pem_decode(private_key_code),
-         private_key = :public_key.pem_entry_decode(private_key) do
+  def sign(%Actor{} = actor, headers) do
+    with private_key = Actor.get_keys_for_actor(actor) do
       sigstring = build_signing_string(headers, Map.keys(headers))
 
       signature =
diff --git a/priv/repo/migrations/20180607095732_add_uuid_to_comments.exs b/priv/repo/migrations/20180607095732_add_uuid_to_comments.exs
new file mode 100644
index 000000000..c0f0785cb
--- /dev/null
+++ b/priv/repo/migrations/20180607095732_add_uuid_to_comments.exs
@@ -0,0 +1,15 @@
+defmodule Eventos.Repo.Migrations.AddUUIDToComments do
+  use Ecto.Migration
+
+  def up do
+    alter table(:comments) do
+      add :uuid, :uuid
+    end
+  end
+
+  def down do
+    alter table(:comments) do
+      remove :uuid
+    end
+  end
+end
diff --git a/priv/repo/migrations/20180614094653_make_shared_inbox_url_nullable.exs b/priv/repo/migrations/20180614094653_make_shared_inbox_url_nullable.exs
new file mode 100644
index 000000000..3b2135361
--- /dev/null
+++ b/priv/repo/migrations/20180614094653_make_shared_inbox_url_nullable.exs
@@ -0,0 +1,15 @@
+defmodule Eventos.Repo.Migrations.MakeSharedInboxUrlNullable do
+  use Ecto.Migration
+
+  def up do
+    alter table(:actors) do
+      modify :shared_inbox_url, :string, null: true, default: nil
+    end
+  end
+
+  def down do
+    alter table(:actors) do
+      add :shared_inbox_url, :string, null: false, default: ""
+    end
+  end
+end
diff --git a/priv/repo/migrations/20180614104618_fusion_public_private_key_into_keys_column.exs b/priv/repo/migrations/20180614104618_fusion_public_private_key_into_keys_column.exs
new file mode 100644
index 000000000..d9722db4d
--- /dev/null
+++ b/priv/repo/migrations/20180614104618_fusion_public_private_key_into_keys_column.exs
@@ -0,0 +1,17 @@
+defmodule Eventos.Repo.Migrations.FusionPublicPrivateKeyIntoKeysColumn do
+  use Ecto.Migration
+
+  def up do
+    rename table(:actors), :private_key, to: :keys
+    alter table(:actors) do
+      remove :public_key
+    end
+  end
+
+  def down do
+    alter table(:actors) do
+      rename :keys, to: :private_key
+      add :public_key, :text, null: true
+    end
+  end
+end
diff --git a/priv/repo/migrations/20180614131328_add_attributed_to_field_to_events_and_comments.exs b/priv/repo/migrations/20180614131328_add_attributed_to_field_to_events_and_comments.exs
new file mode 100644
index 000000000..66b5d9579
--- /dev/null
+++ b/priv/repo/migrations/20180614131328_add_attributed_to_field_to_events_and_comments.exs
@@ -0,0 +1,23 @@
+defmodule Eventos.Repo.Migrations.AddAttributedToFieldToEventsAndComments do
+  use Ecto.Migration
+
+  def up do
+    alter table(:events) do
+      add :attributed_to_id, references(:actors, on_delete: :nothing)
+    end
+
+    alter table(:comments) do
+      add :attributed_to_id, references(:actors, on_delete: :nothing)
+    end
+  end
+
+  def down do
+    alter table(:events) do
+      remove :attributed_to_id
+    end
+
+    alter table(:comments) do
+      remove :attributed_to_id
+    end
+  end
+end
diff --git a/test/eventos/actors/actors_test.exs b/test/eventos/actors/actors_test.exs
index 048b9b7c2..709df56b2 100644
--- a/test/eventos/actors/actors_test.exs
+++ b/test/eventos/actors/actors_test.exs
@@ -1,14 +1,15 @@
 defmodule Eventos.ActorsTest do
   use Eventos.DataCase
+  import Eventos.Factory
 
   alias Eventos.Actors
 
   describe "actors" do
     alias Eventos.Actors.Actor
 
-    @valid_attrs %{description: "some description", display_name: "some display_name", domain: "some domain", private_key: "some private_key", public_key: "some public_key", suspended: true, uri: "some uri", url: "some url", username: "some username"}
-    @update_attrs %{description: "some updated description", display_name: "some updated display_name", domain: "some updated domain", private_key: "some updated private_key", public_key: "some updated public_key", suspended: false, uri: "some updated uri", url: "some updated url", username: "some updated username"}
-    @invalid_attrs %{description: nil, display_name: nil, domain: nil, private_key: nil, public_key: nil, suspended: nil, uri: nil, url: nil, username: nil}
+    @valid_attrs %{summary: "some description", name: "some name", domain: "some domain", keys: "some keypair", suspended: true, uri: "some uri", url: "some url", preferred_username: "some username"}
+    @update_attrs %{summary: "some updated description", name: "some updated name", domain: "some updated domain", keys: "some updated keys", suspended: false, uri: "some updated uri", url: "some updated url", preferred_username: "some updated username"}
+    @invalid_attrs %{summary: nil, name: nil, domain: nil, keys: nil, suspended: nil, uri: nil, url: nil, preferred_username: nil}
 
     def actor_fixture(attrs \\ %{}) do
       {:ok, actor} =
@@ -31,15 +32,13 @@ defmodule Eventos.ActorsTest do
 
     test "create_actor/1 with valid data creates a actor" do
       assert {:ok, %Actor{} = actor} = Actors.create_actor(@valid_attrs)
-      assert actor.description == "some description"
-      assert actor.display_name == "some display_name"
+      assert actor.summary == "some description"
+      assert actor.name == "some name"
       assert actor.domain == "some domain"
-      assert actor.private_key == "some private_key"
-      assert actor.public_key == "some public_key"
+      assert actor.keys == "some keypair"
       assert actor.suspended
-      assert actor.uri == "some uri"
       assert actor.url == "some url"
-      assert actor.username == "some username"
+      assert actor.preferred_username == "some username"
     end
 
     test "create_actor/1 with invalid data returns error changeset" do
@@ -50,15 +49,13 @@ defmodule Eventos.ActorsTest do
       actor = actor_fixture()
       assert {:ok, actor} = Actors.update_actor(actor, @update_attrs)
       assert %Actor{} = actor
-      assert actor.description == "some updated description"
-      assert actor.display_name == "some updated display_name"
+      assert actor.summary == "some updated description"
+      assert actor.name == "some updated name"
       assert actor.domain == "some updated domain"
-      assert actor.private_key == "some updated private_key"
-      assert actor.public_key == "some updated public_key"
+      assert actor.keys == "some updated keys"
       refute actor.suspended
-      assert actor.uri == "some updated uri"
       assert actor.url == "some updated url"
-      assert actor.username == "some updated username"
+      assert actor.preferred_username == "some updated username"
     end
 
     test "update_actor/2 with invalid data returns error changeset" do
@@ -82,7 +79,7 @@ defmodule Eventos.ActorsTest do
   describe "users" do
     alias Eventos.Actors.{User, Actor}
 
-    @actor_valid_attrs %{description: "some description", display_name: "some display_name", domain: "some domain", private_key: "some private_key", public_key: "some public_key", suspended: true, uri: "some uri", url: "some url", username: "some username"}
+    @actor_valid_attrs %{description: "some description", display_name: "some display_name", domain: "some domain", keys: "some keys", suspended: true, uri: "some uri", url: "some url", preferred_username: "some username"}
     @valid_attrs %{email: "foo@bar.tld", password_hash: "some password_hash", role: 42}
     @update_attrs %{email: "foo@fighters.tld", password_hash: "some updated password_hash", role: 43}
     @invalid_attrs %{email: nil, password_hash: nil, role: nil}
@@ -182,26 +179,26 @@ defmodule Eventos.ActorsTest do
     @invalid_attrs %{source: nil, type: nil}
 
     def bot_fixture(attrs \\ %{}) do
-      {:ok, bot} =
-        attrs
-        |> Enum.into(@valid_attrs)
-        |> Actors.create_bot()
-
-      bot
+      insert(:bot)
     end
 
     test "list_bots/0 returns all bots" do
       bot = bot_fixture()
-      assert Actors.list_bots() == [bot]
+      bots = Actors.list_bots()
+      assert bots = [bot]
     end
 
     test "get_bot!/1 returns the bot with given id" do
       bot = bot_fixture()
-      assert Actors.get_bot!(bot.id) == bot
+      bot_fetched = Actors.get_bot!(bot.id)
+      assert bot_fetched = bot
     end
 
     test "create_bot/1 with valid data creates a bot" do
-      assert {:ok, %Bot{} = bot} = Actors.create_bot(@valid_attrs)
+      attrs = @valid_attrs
+      |> Map.merge(%{actor_id: insert(:actor).id})
+      |> Map.merge(%{user_id: insert(:user).id})
+      assert {:ok, %Bot{} = bot} = Actors.create_bot(attrs)
       assert bot.source == "some source"
       assert bot.type == "some type"
     end
@@ -221,7 +218,8 @@ defmodule Eventos.ActorsTest do
     test "update_bot/2 with invalid data returns error changeset" do
       bot = bot_fixture()
       assert {:error, %Ecto.Changeset{}} = Actors.update_bot(bot, @invalid_attrs)
-      assert bot == Actors.get_bot!(bot.id)
+      bot_fetched = Actors.get_bot!(bot.id)
+      assert bot = bot_fetched
     end
 
     test "delete_bot/1 deletes the bot" do
diff --git a/test/eventos/events/events_test.exs b/test/eventos/events/events_test.exs
index 4ee82cf36..abc2b3792 100644
--- a/test/eventos/events/events_test.exs
+++ b/test/eventos/events/events_test.exs
@@ -4,13 +4,12 @@ defmodule Eventos.EventsTest do
   import Eventos.Factory
 
   alias Eventos.Events
-  alias Eventos.Accounts
+  alias Eventos.Actors
 
-  @account_valid_attrs %{description: "some description", display_name: "some display_name", domain: "some domain", private_key: "some private_key", public_key: "some public_key", suspended: true, uri: "some uri", url: "some url", username: "some username"}
   @event_valid_attrs %{begins_on: "2010-04-17 14:00:00.000000Z", description: "some description", ends_on: "2010-04-17 14:00:00.000000Z", title: "some title"}
 
-  def account_fixture do
-    insert(:account)
+  def actor_fixture do
+    insert(:actor)
   end
 
   def address_fixture do
@@ -28,7 +27,6 @@ defmodule Eventos.EventsTest do
   describe "events" do
     alias Eventos.Events.Event
 
-    @account_valid_attrs %{description: "some description", display_name: "some display_name", domain: "some domain", private_key: "some private_key", public_key: "some public_key", suspended: true, uri: "some uri", url: "some url", username: "some username"}
     @valid_attrs %{begins_on: "2010-04-17 14:00:00.000000Z", description: "some description", ends_on: "2010-04-17 14:00:00.000000Z", title: "some title"}
     @update_attrs %{begins_on: "2011-05-18 15:01:01.000000Z", description: "some updated description", ends_on: "2011-05-18 15:01:01.000000Z", title: "some updated title"}
     @invalid_attrs %{begins_on: nil, description: nil, ends_on: nil, title: nil}
@@ -44,11 +42,12 @@ defmodule Eventos.EventsTest do
     end
 
     test "create_event/1 with valid data creates a event" do
-      {:ok, account} = Accounts.create_account(@account_valid_attrs)
+      actor = actor_fixture()
       category = category_fixture()
       address = address_fixture()
-      valid_attrs = Map.put(@event_valid_attrs, :organizer_account_id, account.id)
-      valid_attrs = valid_attrs
+      valid_attrs = @event_valid_attrs
+        |> Map.put(:organizer_actor, actor)
+        |> Map.put(:organizer_actor_id, actor.id)
         |> Map.put(:category_id, category.id)
         |> Map.put(:address_id, address.id)
       assert {:ok, %Event{} = event} = Events.create_event(valid_attrs)
@@ -90,68 +89,6 @@ defmodule Eventos.EventsTest do
     end
   end
 
-  describe "event_requests" do
-    alias Eventos.Events.Request
-
-    @valid_attrs %{state: 42}
-    @update_attrs %{state: 43}
-    @invalid_attrs %{state: nil}
-
-    def event_request_fixture(attrs \\ %{}) do
-      event = event_fixture()
-      valid_attrs = Map.put(@valid_attrs, :event_id, event.id)
-      {:ok, event_request} =
-        attrs
-        |> Enum.into(valid_attrs)
-        |> Events.create_request()
-
-      event_request
-    end
-
-    test "list_event_requests/0 returns all event_requests" do
-      event_request = event_request_fixture()
-      assert Events.list_requests() == [event_request]
-    end
-
-    test "get_request!/1 returns the event_request with given id" do
-      event_request = event_request_fixture()
-      assert Events.get_request!(event_request.id) == event_request
-    end
-
-    test "create_request/1 with valid data creates a event_request" do
-      assert {:ok, %Request{} = event_request} = Events.create_request(@valid_attrs)
-      assert event_request.state == 42
-    end
-
-    test "create_request/1 with invalid data returns error changeset" do
-      assert {:error, %Ecto.Changeset{}} = Events.create_request(@invalid_attrs)
-    end
-
-    test "update_event_request/2 with valid data updates the event_request" do
-      event_request = event_request_fixture()
-      assert {:ok, event_request} = Events.update_request(event_request, @update_attrs)
-      assert %Request{} = event_request
-      assert event_request.state == 43
-    end
-
-    test "update_event_request/2 with invalid data returns error changeset" do
-      event_request = event_request_fixture()
-      assert {:error, %Ecto.Changeset{}} = Events.update_request(event_request, @invalid_attrs)
-      assert event_request == Events.get_request!(event_request.id)
-    end
-
-    test "delete_event_request/1 deletes the event_request" do
-      event_request = event_request_fixture()
-      assert {:ok, %Request{}} = Events.delete_request(event_request)
-      assert_raise Ecto.NoResultsError, fn -> Events.get_request!(event_request.id) end
-    end
-
-    test "change_event_request/1 returns a event_request changeset" do
-      event_request = event_request_fixture()
-      assert %Ecto.Changeset{} = Events.change_request(event_request)
-    end
-  end
-
   describe "categories" do
     alias Eventos.Events.Category
 
@@ -276,9 +213,9 @@ defmodule Eventos.EventsTest do
 
     def participant_fixture(attrs \\ %{}) do
       event = event_fixture()
-      account = account_fixture()
+      actor = actor_fixture()
       valid_attrs = Map.put(@valid_attrs, :event_id, event.id)
-      valid_attrs = Map.put(valid_attrs, :account_id, account.id)
+      valid_attrs = Map.put(valid_attrs, :actor_id, actor.id)
       {:ok, participant} =
         attrs
         |> Enum.into(valid_attrs)
@@ -298,10 +235,10 @@ defmodule Eventos.EventsTest do
 #    end
 
     test "create_participant/1 with valid data creates a participant" do
-      account = account_fixture()
+      actor = actor_fixture()
       event = event_fixture()
       valid_attrs = Map.put(@valid_attrs, :event_id, event.id)
-      valid_attrs = Map.put(valid_attrs, :account_id, account.id)
+      valid_attrs = Map.put(valid_attrs, :actor_id, actor.id)
       assert {:ok, %Participant{} = participant} = Events.create_participant(valid_attrs)
       assert participant.role == 42
     end
@@ -333,68 +270,6 @@ defmodule Eventos.EventsTest do
     end
   end
 
-  describe "requests" do
-    alias Eventos.Events.Request
-
-    @valid_attrs %{state: 42}
-    @update_attrs %{state: 43}
-    @invalid_attrs %{state: nil}
-
-    def request_fixture(attrs \\ %{}) do
-      event = event_fixture()
-      valid_attrs = Map.put(@valid_attrs, :event_id, event.id)
-      {:ok, request} =
-        attrs
-        |> Enum.into(valid_attrs)
-        |> Events.create_request()
-
-      request
-    end
-
-    test "list_requests/0 returns all requests" do
-      request = request_fixture()
-      assert Events.list_requests() == [request]
-    end
-
-    test "get_request!/1 returns the request with given id" do
-      request = request_fixture()
-      assert Events.get_request!(request.id) == request
-    end
-
-    test "create_request/1 with valid data creates a request" do
-      assert {:ok, %Request{} = request} = Events.create_request(@valid_attrs)
-      assert request.state == 42
-    end
-
-    test "create_request/1 with invalid data returns error changeset" do
-      assert {:error, %Ecto.Changeset{}} = Events.create_request(@invalid_attrs)
-    end
-
-    test "update_request/2 with valid data updates the request" do
-      request = request_fixture()
-      assert {:ok, request} = Events.update_request(request, @update_attrs)
-      assert %Request{} = request
-      assert request.state == 43
-    end
-
-    test "update_request/2 with invalid data returns error changeset" do
-      request = request_fixture()
-      assert {:error, %Ecto.Changeset{}} = Events.update_request(request, @invalid_attrs)
-      assert request == Events.get_request!(request.id)
-    end
-
-    test "delete_request/1 deletes the request" do
-      request = request_fixture()
-      assert {:ok, %Request{}} = Events.delete_request(request)
-      assert_raise Ecto.NoResultsError, fn -> Events.get_request!(request.id) end
-    end
-
-    test "change_request/1 returns a request changeset" do
-      request = request_fixture()
-      assert %Ecto.Changeset{} = Events.change_request(request)
-    end
-  end
-
   describe "sessions" do
     alias Eventos.Events.Session
 
@@ -544,33 +419,32 @@ defmodule Eventos.EventsTest do
   describe "comments" do
     alias Eventos.Events.Comment
 
-    @valid_attrs %{text: "some text", url: "some url"}
-    @update_attrs %{text: "some updated text", url: "some updated url"}
+    @valid_attrs %{text: "some text"}
+    @update_attrs %{text: "some updated text"}
     @invalid_attrs %{text: nil, url: nil}
 
-    def comment_fixture(attrs \\ %{}) do
-      {:ok, comment} =
-        attrs
-        |> Enum.into(@valid_attrs)
-        |> Events.create_comment()
-
-      comment
+    def comment_fixture() do
+      insert(:comment)
     end
 
     test "list_comments/0 returns all comments" do
       comment = comment_fixture()
-      assert Events.list_comments() == [comment]
+      comments = Events.list_comments()
+      assert comments = [comment]
     end
 
     test "get_comment!/1 returns the comment with given id" do
       comment = comment_fixture()
-      assert Events.get_comment!(comment.id) == comment
+      comment_fetched = Events.get_comment!(comment.id)
+      assert comment_fetched = comment
     end
 
     test "create_comment/1 with valid data creates a comment" do
-      assert {:ok, %Comment{} = comment} = Events.create_comment(@valid_attrs)
+      actor = actor_fixture()
+      comment_data = Map.merge(@valid_attrs, %{actor_id: actor.id})
+      assert {:ok, %Comment{} = comment} = Events.create_comment(comment_data)
       assert comment.text == "some text"
-      assert comment.url == "some url"
+      assert comment.actor_id == actor.id
     end
 
     test "create_comment/1 with invalid data returns error changeset" do
@@ -582,13 +456,13 @@ defmodule Eventos.EventsTest do
       assert {:ok, comment} = Events.update_comment(comment, @update_attrs)
       assert %Comment{} = comment
       assert comment.text == "some updated text"
-      assert comment.url == "some updated url"
     end
 
     test "update_comment/2 with invalid data returns error changeset" do
       comment = comment_fixture()
       assert {:error, %Ecto.Changeset{}} = Events.update_comment(comment, @invalid_attrs)
-      assert comment == Events.get_comment!(comment.id)
+      comment_fetched = Events.get_comment!(comment.id)
+      assert comment = comment_fetched
     end
 
     test "delete_comment/1 deletes the comment" do
diff --git a/test/eventos/service/activitypub/activitypub_test.exs b/test/eventos/service/activitypub/activitypub_test.exs
index 6b480d9eb..f7656dc6f 100644
--- a/test/eventos/service/activitypub/activitypub_test.exs
+++ b/test/eventos/service/activitypub/activitypub_test.exs
@@ -5,30 +5,30 @@ defmodule Eventos.Service.Activitypub.ActivitypubTest do
   import Eventos.Factory
 
   alias Eventos.Events
-  alias Eventos.Accounts.Account
+  alias Eventos.Actors.Actor
   alias Eventos.Service.ActivityPub
   alias Eventos.Activity
 
-  describe "fetching account from it's url" do
-    test "returns an account" do
-      assert {:ok, %Account{username: "tcit@framapiaf.org"} = account} = ActivityPub.make_account_from_nickname("tcit@framapiaf.org")
+  describe "fetching actor from it's url" do
+    test "returns an actor" do
+      assert {:ok, %Actor{preferred_username: "tcit", domain: "framapiaf.org"} = actor} = ActivityPub.make_actor_from_nickname("tcit@framapiaf.org")
     end
   end
 
   describe "create activities" do
     test "removes doubled 'to' recipients" do
-      account = insert(:account)
+      actor = insert(:actor)
 
       {:ok, activity} =
         ActivityPub.create(%{
           to: ["user1", "user1", "user2"],
-          actor: account,
+          actor: actor,
           context: "",
           object: %{}
         })
 
       assert activity.data["to"] == ["user1", "user2"]
-      assert activity.actor == account.url
+      assert activity.actor == actor.url
       assert activity.recipients == ["user1", "user2"]
     end
   end
@@ -52,7 +52,7 @@ defmodule Eventos.Service.Activitypub.ActivitypubTest do
       {:ok, delete} = ActivityPub.delete(event)
 
       assert delete.data["type"] == "Delete"
-      assert delete.data["actor"] == event.organizer_account.url
+      assert delete.data["actor"] == event.organizer_actor.url
       assert delete.data["object"] == event.url
 
       assert Events.get_event_by_url!(event.url) == nil
@@ -60,22 +60,22 @@ defmodule Eventos.Service.Activitypub.ActivitypubTest do
   end
 
   describe "update" do
-    test "it creates an update activity with the new user data" do
-      account = insert(:account)
-      account_data = EventosWeb.ActivityPub.UserView.render("account.json", %{account: account})
+    test "it creates an update activity with the new actor data" do
+      actor = insert(:actor)
+      actor_data = EventosWeb.ActivityPub.ActorView.render("actor.json", %{actor: actor})
 
       {:ok, update} =
         ActivityPub.update(%{
-          actor: account_data["url"],
-          to: [account.url <> "/followers"],
+          actor: actor_data["url"],
+          to: [actor.url <> "/followers"],
           cc: [],
-          object: account_data
+          object: actor_data
         })
 
-      assert update.data["actor"] == account.url
-      assert update.data["to"] == [account.url <> "/followers"]
-      assert update.data["object"]["id"] == account_data["id"]
-      assert update.data["object"]["type"] == account_data["type"]
+      assert update.data["actor"] == actor.url
+      assert update.data["to"] == [actor.url <> "/followers"]
+      assert update.data["object"]["id"] == actor_data["id"]
+      assert update.data["object"]["type"] == actor_data["type"]
     end
   end
 end
diff --git a/test/eventos/service/web_finger/web_finger_test.exs b/test/eventos/service/web_finger/web_finger_test.exs
index 5be1b3344..e22846120 100644
--- a/test/eventos/service/web_finger/web_finger_test.exs
+++ b/test/eventos/service/web_finger/web_finger_test.exs
@@ -13,46 +13,46 @@ defmodule Eventos.Service.WebFingerTest do
 
   describe "incoming webfinger request" do
     test "works for fqns" do
-      account = insert(:account)
+      actor = insert(:actor)
 
       {:ok, result} =
-        WebFinger.webfinger("#{account.username}@#{EventosWeb.Endpoint.host()}", "JSON")
+        WebFinger.webfinger("#{actor.preferred_username}@#{EventosWeb.Endpoint.host()}", "JSON")
       assert is_map(result)
     end
 
     test "works for urls" do
-      account = insert(:account)
+      actor = insert(:actor)
 
-      {:ok, result} = WebFinger.webfinger(account.url, "JSON")
+      {:ok, result} = WebFinger.webfinger(actor.url, "JSON")
       assert is_map(result)
     end
   end
 
   describe "fingering" do
 
-    test "a mastodon account" do
-      account = "tcit@social.tcit.fr"
+    test "a mastodon actor" do
+      actor = "tcit@social.tcit.fr"
 
-      assert {:ok, %{"subject" => "acct:" <> account, "url" => "https://social.tcit.fr/users/tcit"}} = WebFinger.finger(account)
+      assert {:ok, %{"subject" => "acct:" <> actor, "url" => "https://social.tcit.fr/users/tcit"}} = WebFinger.finger(actor)
     end
 
-    test "a pleroma account" do
-      account = "@lain@pleroma.soykaf.com"
+    test "a pleroma actor" do
+      actor = "@lain@pleroma.soykaf.com"
 
-      assert {:ok, %{"subject" => "acct:" <> account, "url" => "https://pleroma.soykaf.com/users/lain"}} = WebFinger.finger(account)
+      assert {:ok, %{"subject" => "acct:" <> actor, "url" => "https://pleroma.soykaf.com/users/lain"}} = WebFinger.finger(actor)
     end
 
-    test "a peertube account" do
-      account = "framasoft@framatube.org"
+    test "a peertube actor" do
+      actor = "framasoft@framatube.org"
 
-      assert {:ok, %{"subject" => "acct:" <> account, "url" => "https://framatube.org/accounts/framasoft"}} = WebFinger.finger(account)
+      assert {:ok, %{"subject" => "acct:" <> actor, "url" => "https://framatube.org/accounts/framasoft"}} = WebFinger.finger(actor)
     end
 
-    test "a friendica account" do
+    test "a friendica actor" do
       # Hasn't any ActivityPub
-      account = "lain@squeet.me"
+      actor = "lain@squeet.me"
 
-      assert {:ok, %{"subject" => "acct:" <> account} = data} = WebFinger.finger(account)
+      assert {:ok, %{"subject" => "acct:" <> actor} = data} = WebFinger.finger(actor)
       refute Map.has_key?(data, "url")
     end
   end
diff --git a/test/eventos_web/controllers/account_controller_test.exs b/test/eventos_web/controllers/account_controller_test.exs
deleted file mode 100644
index f41049c4d..000000000
--- a/test/eventos_web/controllers/account_controller_test.exs
+++ /dev/null
@@ -1,60 +0,0 @@
-defmodule EventosWeb.AccountControllerTest do
-  use EventosWeb.ConnCase
-
-  import Eventos.Factory
-
-  alias Eventos.Accounts
-
-  @create_attrs %{description: "some description", display_name: "some display_name", domain: "some domain", private_key: "some private_key", public_key: "some public_key", suspended: true, uri: "some uri", url: "some url", username: "some username"}
-
-  def fixture(:account) do
-    {:ok, account} = Accounts.create_account(@create_attrs)
-    account
-  end
-
-  setup %{conn: conn} do
-    account = insert(:account)
-    user = insert(:user, account: account)
-    {:ok, conn: conn, user: user}
-  end
-
-  describe "index" do
-    test "lists all accounts", %{conn: conn, user: user} do
-      conn = get conn, account_path(conn, :index)
-      assert hd(json_response(conn, 200)["data"])["username"] == user.account.username
-    end
-  end
-
-  describe "delete account" do
-    setup [:create_account]
-
-    test "deletes own account", %{conn: conn, user: user} do
-      conn = auth_conn(conn, user)
-      conn = delete conn, account_path(conn, :delete, user.account)
-      assert response(conn, 204)
-      assert_error_sent 404, fn ->
-        get conn, account_path(conn, :show, user.account)
-      end
-    end
-
-    test "deletes other account", %{conn: conn, account: account, user: user} do
-      conn = auth_conn(conn, user)
-      conn = delete conn, account_path(conn, :delete, account)
-      assert response(conn, 401)
-      conn = get conn, account_path(conn, :show, account)
-      assert response(conn, 200)
-    end
-  end
-
-  defp create_account(_) do
-    account = fixture(:account)
-    {:ok, account: account}
-  end
-
-  defp auth_conn(conn, %Eventos.Accounts.User{} = user) do
-    {:ok, token, _claims} = EventosWeb.Guardian.encode_and_sign(user)
-    conn
-    |> put_req_header("authorization", "Bearer #{token}")
-    |> put_req_header("accept", "application/json")
-  end
-end
diff --git a/test/eventos_web/controllers/activity_pub_controller_test.exs b/test/eventos_web/controllers/activity_pub_controller_test.exs
index 976a9191f..bf285e8f8 100644
--- a/test/eventos_web/controllers/activity_pub_controller_test.exs
+++ b/test/eventos_web/controllers/activity_pub_controller_test.exs
@@ -1,44 +1,42 @@
 defmodule EventosWeb.ActivityPubControllerTest do
   use EventosWeb.ConnCase
   import Eventos.Factory
-  alias EventosWeb.ActivityPub.{AccountView, ObjectView}
-  alias Eventos.{Repo, Accounts, Accounts.Account}
+  alias EventosWeb.ActivityPub.{ActorView, ObjectView}
+  alias Eventos.{Repo, Actors, Actors.Actor}
   alias Eventos.Activity
   import Logger
 
   describe "/@:username" do
-    test "it returns a json representation of the account", %{conn: conn} do
-      account = insert(:account)
+    test "it returns a json representation of the actor", %{conn: conn} do
+      actor = insert(:actor)
 
       conn =
         conn
         |> put_req_header("accept", "application/activity+json")
-        |> get("/@#{account.username}")
+        |> get("/@#{actor.preferred_username}")
 
-      account = Accounts.get_account!(account.id)
+      actor = Actors.get_actor!(actor.id)
 
-      assert json_response(conn, 200) == AccountView.render("account.json", %{account: account})
-      Logger.error(inspect AccountView.render("account.json", %{account: account}))
+      assert json_response(conn, 200) == ActorView.render("actor.json", %{actor: actor})
+      Logger.error(inspect ActorView.render("actor.json", %{actor: actor}))
     end
   end
 
-  describe "/@username/slug" do
+  describe "/events/uuid" do
     test "it returns a json representation of the object", %{conn: conn} do
       event = insert(:event)
-      {slug, parts} = List.pop_at(String.split(event.url, "/"), -1)
-      "@" <> username = List.last(parts)
 
       conn =
         conn
         |> put_req_header("accept", "application/activity+json")
-        |> get("/@#{username}/#{slug}")
+        |> get("/events/#{event.uuid}")
 
       assert json_response(conn, 200) == ObjectView.render("event.json", %{event: event})
       Logger.error(inspect ObjectView.render("event.json", %{event: event}))
     end
   end
 
-#  describe "/accounts/:username/inbox" do
+#  describe "/actors/:username/inbox" do
 #    test "it inserts an incoming activity into the database", %{conn: conn} do
 #      data = File.read!("test/fixtures/mastodon-post-activity.json") |> Poison.decode!()
 #
@@ -54,7 +52,7 @@ defmodule EventosWeb.ActivityPubControllerTest do
 #    end
 #  end
 
-#  describe "/accounts/:nickname/followers" do
+#  describe "/actors/:nickname/followers" do
 #    test "it returns the followers in a collection", %{conn: conn} do
 #      user = insert(:user)
 #      user_two = insert(:user)
diff --git a/test/eventos_web/controllers/actor_controller_test.exs b/test/eventos_web/controllers/actor_controller_test.exs
new file mode 100644
index 000000000..c07d9d997
--- /dev/null
+++ b/test/eventos_web/controllers/actor_controller_test.exs
@@ -0,0 +1,49 @@
+defmodule EventosWeb.ActorControllerTest do
+  use EventosWeb.ConnCase
+
+  import Eventos.Factory
+
+  alias Eventos.Actors
+
+  setup %{conn: conn} do
+    actor = insert(:actor)
+    user = insert(:user, actor: actor)
+    {:ok, conn: conn, user: user}
+  end
+
+  describe "index" do
+    test "lists all actors", %{conn: conn, user: user} do
+      conn = get conn, actor_path(conn, :index)
+      assert hd(json_response(conn, 200)["data"])["username"] == user.actor.preferred_username
+    end
+  end
+
+###
+# Not possible atm
+###
+#  describe "delete actor" do
+#    setup [:create_actor]
+#
+#    test "deletes own actor", %{conn: conn, user: user} do
+#      conn = auth_conn(conn, user)
+#      conn = delete conn, actor_path(conn, :delete, user.actor)
+#      assert response(conn, 204)
+#      assert_error_sent 404, fn ->
+#        get conn, actor_path(conn, :show, user.actor)
+#      end
+#    end
+#
+#    test "deletes other actor", %{conn: conn, actor: actor, user: user} do
+#      conn = auth_conn(conn, user)
+#      conn = delete conn, actor_path(conn, :delete, actor)
+#      assert response(conn, 401)
+#      conn = get conn, actor_path(conn, :show, actor)
+#      assert response(conn, 200)
+#    end
+#  end
+
+  defp create_actor(_) do
+    actor = insert(:actor)
+    {:ok, actor: actor}
+  end
+end
diff --git a/test/eventos_web/controllers/address_controller_test.exs b/test/eventos_web/controllers/address_controller_test.exs
index 2ecd5c363..7b66c2e42 100644
--- a/test/eventos_web/controllers/address_controller_test.exs
+++ b/test/eventos_web/controllers/address_controller_test.exs
@@ -16,8 +16,8 @@ defmodule EventosWeb.AddressControllerTest do
   end
 
   setup %{conn: conn} do
-    account = insert(:account)
-    user = insert(:user, account: account)
+    actor = insert(:actor)
+    user = insert(:user, actor: actor)
     {:ok, conn: conn, user: user}
   end
 
@@ -101,11 +101,4 @@ defmodule EventosWeb.AddressControllerTest do
   defp create_address(_) do
     {:ok, address: insert(:address)}
   end
-
-  defp auth_conn(conn, %Eventos.Accounts.User{} = user) do
-    {:ok, token, _claims} = EventosWeb.Guardian.encode_and_sign(user)
-    conn
-    |> put_req_header("authorization", "Bearer #{token}")
-    |> put_req_header("accept", "application/json")
-  end
 end
diff --git a/test/eventos_web/controllers/bot_controller_test.exs b/test/eventos_web/controllers/bot_controller_test.exs
index a3170c531..73aad5ac0 100644
--- a/test/eventos_web/controllers/bot_controller_test.exs
+++ b/test/eventos_web/controllers/bot_controller_test.exs
@@ -1,20 +1,19 @@
 defmodule EventosWeb.BotControllerTest do
   use EventosWeb.ConnCase
 
+  import Eventos.Factory
+
   alias Eventos.Actors
   alias Eventos.Actors.Bot
 
-  @create_attrs %{source: "some source", type: "some type"}
-  @update_attrs %{source: "some updated source", type: "some updated type"}
-  @invalid_attrs %{source: nil, type: nil}
-
-  def fixture(:bot) do
-    {:ok, bot} = Actors.create_bot(@create_attrs)
-    bot
-  end
+  @create_attrs %{source: "some source", type: "some type", name: "some name"}
+  @update_attrs %{source: "some updated source", type: "some updated type", name: "some updated name"}
+  @invalid_attrs %{source: nil, type: nil, name: nil}
 
   setup %{conn: conn} do
-    {:ok, conn: put_req_header(conn, "accept", "application/json")}
+    actor = insert(:actor)
+    user = insert(:user, actor: actor)
+    {:ok, conn: put_req_header(conn, "accept", "application/json"), user: user}
   end
 
   describe "index" do
@@ -25,7 +24,8 @@ defmodule EventosWeb.BotControllerTest do
   end
 
   describe "create bot" do
-    test "renders bot when data is valid", %{conn: conn} do
+    test "renders bot when data is valid", %{conn: conn, user: user} do
+      conn = auth_conn(conn, user)
       conn = post conn, bot_path(conn, :create), bot: @create_attrs
       assert %{"id" => id} = json_response(conn, 201)["data"]
 
@@ -36,7 +36,8 @@ defmodule EventosWeb.BotControllerTest do
         "type" => "some type"}
     end
 
-    test "renders errors when data is invalid", %{conn: conn} do
+    test "renders errors when data is invalid", %{conn: conn, user: user} do
+      conn = auth_conn(conn, user)
       conn = post conn, bot_path(conn, :create), bot: @invalid_attrs
       assert json_response(conn, 422)["errors"] != %{}
     end
@@ -45,7 +46,8 @@ defmodule EventosWeb.BotControllerTest do
   describe "update bot" do
     setup [:create_bot]
 
-    test "renders bot when data is valid", %{conn: conn, bot: %Bot{id: id} = bot} do
+    test "renders bot when data is valid", %{conn: conn, bot: %Bot{id: id} = bot, user: user} do
+      conn = auth_conn(conn, user)
       conn = put conn, bot_path(conn, :update, bot), bot: @update_attrs
       assert %{"id" => ^id} = json_response(conn, 200)["data"]
 
@@ -56,7 +58,8 @@ defmodule EventosWeb.BotControllerTest do
         "type" => "some updated type"}
     end
 
-    test "renders errors when data is invalid", %{conn: conn, bot: bot} do
+    test "renders errors when data is invalid", %{conn: conn, bot: bot, user: user} do
+      conn = auth_conn(conn, user)
       conn = put conn, bot_path(conn, :update, bot), bot: @invalid_attrs
       assert json_response(conn, 422)["errors"] != %{}
     end
@@ -65,7 +68,8 @@ defmodule EventosWeb.BotControllerTest do
   describe "delete bot" do
     setup [:create_bot]
 
-    test "deletes chosen bot", %{conn: conn, bot: bot} do
+    test "deletes chosen bot", %{conn: conn, bot: bot, user: user} do
+      conn = auth_conn(conn, user)
       conn = delete conn, bot_path(conn, :delete, bot)
       assert response(conn, 204)
       assert_error_sent 404, fn ->
@@ -75,7 +79,7 @@ defmodule EventosWeb.BotControllerTest do
   end
 
   defp create_bot(_) do
-    bot = fixture(:bot)
+    bot = insert(:bot)
     {:ok, bot: bot}
   end
 end
diff --git a/test/eventos_web/controllers/category_controller_test.exs b/test/eventos_web/controllers/category_controller_test.exs
index 4155c0168..c63cf1837 100644
--- a/test/eventos_web/controllers/category_controller_test.exs
+++ b/test/eventos_web/controllers/category_controller_test.exs
@@ -16,8 +16,8 @@ defmodule EventosWeb.CategoryControllerTest do
   end
 
   setup %{conn: conn} do
-    account = insert(:account)
-    user = insert(:user, account: account)
+    actor = insert(:actor)
+    user = insert(:user, actor: actor)
     {:ok, conn: conn, user: user}
   end
 
@@ -89,11 +89,4 @@ defmodule EventosWeb.CategoryControllerTest do
     category = fixture(:category)
     {:ok, category: category}
   end
-
-  defp auth_conn(conn, %Eventos.Accounts.User{} = user) do
-    {:ok, token, _claims} = EventosWeb.Guardian.encode_and_sign(user)
-    conn
-    |> put_req_header("authorization", "Bearer #{token}")
-    |> put_req_header("accept", "application/json")
-  end
 end
diff --git a/test/eventos_web/controllers/comment_controller_test.exs b/test/eventos_web/controllers/comment_controller_test.exs
index 6b532d5ed..e07b995fb 100644
--- a/test/eventos_web/controllers/comment_controller_test.exs
+++ b/test/eventos_web/controllers/comment_controller_test.exs
@@ -4,39 +4,37 @@ defmodule EventosWeb.CommentControllerTest do
   alias Eventos.Events
   alias Eventos.Events.Comment
 
-  @create_attrs %{text: "some text", url: "some url"}
-  @update_attrs %{text: "some updated text", url: "some updated url"}
+  import Eventos.Factory
+
+  @create_attrs %{text: "some text"}
+  @update_attrs %{text: "some updated text"}
   @invalid_attrs %{text: nil, url: nil}
 
-  def fixture(:comment) do
-    {:ok, comment} = Events.create_comment(@create_attrs)
-    comment
-  end
-
   setup %{conn: conn} do
-    {:ok, conn: put_req_header(conn, "accept", "application/json")}
-  end
-
-  describe "index" do
-    test "lists all comments", %{conn: conn} do
-      conn = get conn, comment_path(conn, :index)
-      assert json_response(conn, 200)["data"] == []
-    end
+    actor = insert(:actor)
+    user = insert(:user, actor: actor)
+    {:ok, conn: put_req_header(conn, "accept", "application/json"), user: user}
   end
 
   describe "create comment" do
-    test "renders comment when data is valid", %{conn: conn} do
-      conn = post conn, comment_path(conn, :create), comment: @create_attrs
-      assert %{"id" => id} = json_response(conn, 201)["data"]
+    test "renders comment when data is valid", %{conn: conn, user: user} do
+      conn = auth_conn(conn, user)
+      actor = insert(:actor)
+      attrs = Map.merge(@create_attrs, %{actor_id: actor.id})
+      conn = post conn, comment_path(conn, :create), comment: attrs
+      assert %{"uuid" => uuid, "id" => id} = json_response(conn, 201)["data"]
 
-      conn = get conn, comment_path(conn, :show, id)
+      conn = get conn, comment_path(conn, :show, uuid)
       assert json_response(conn, 200)["data"] == %{
         "id" => id,
         "text" => "some text",
-        "url" => "some url"}
+        "uuid" => uuid,
+        "url" => "#{EventosWeb.Endpoint.url()}/comments/#{uuid}"
+      }
     end
 
-    test "renders errors when data is invalid", %{conn: conn} do
+    test "renders errors when data is invalid", %{conn: conn, user: user} do
+      conn = auth_conn(conn, user)
       conn = post conn, comment_path(conn, :create), comment: @invalid_attrs
       assert json_response(conn, 422)["errors"] != %{}
     end
@@ -45,19 +43,25 @@ defmodule EventosWeb.CommentControllerTest do
   describe "update comment" do
     setup [:create_comment]
 
-    test "renders comment when data is valid", %{conn: conn, comment: %Comment{id: id} = comment} do
-      conn = put conn, comment_path(conn, :update, comment), comment: @update_attrs
-      assert %{"id" => ^id} = json_response(conn, 200)["data"]
+    test "renders comment when data is valid", %{conn: conn, comment: %Comment{id: id, uuid: uuid} = comment, user: user} do
+      conn = auth_conn(conn, user)
+      actor = insert(:actor)
+      attrs = Map.merge(@update_attrs, %{actor_id: actor.id})
+      conn = put conn, comment_path(conn, :update, uuid), comment: attrs
+      assert %{"uuid" => uuid, "id" => id} = json_response(conn, 200)["data"]
 
-      conn = get conn, comment_path(conn, :show, id)
+      conn = get conn, comment_path(conn, :show, uuid)
       assert json_response(conn, 200)["data"] == %{
         "id" => id,
         "text" => "some updated text",
-        "url" => "some updated url"}
+        "uuid" => uuid,
+        "url" => "#{EventosWeb.Endpoint.url()}/comments/#{uuid}"
+      }
     end
 
-    test "renders errors when data is invalid", %{conn: conn, comment: comment} do
-      conn = put conn, comment_path(conn, :update, comment), comment: @invalid_attrs
+    test "renders errors when data is invalid", %{conn: conn, comment: comment, user: user} do
+      conn = auth_conn(conn, user)
+      conn = put conn, comment_path(conn, :update, comment.uuid), comment: @invalid_attrs
       assert json_response(conn, 422)["errors"] != %{}
     end
   end
@@ -65,17 +69,18 @@ defmodule EventosWeb.CommentControllerTest do
   describe "delete comment" do
     setup [:create_comment]
 
-    test "deletes chosen comment", %{conn: conn, comment: comment} do
-      conn = delete conn, comment_path(conn, :delete, comment)
+    test "deletes chosen comment", %{conn: conn, comment: %Comment{uuid: uuid} = comment, user: user} do
+      conn = auth_conn(conn, user)
+      conn = delete conn, comment_path(conn, :delete, uuid)
       assert response(conn, 204)
       assert_error_sent 404, fn ->
-        get conn, comment_path(conn, :show, comment)
+        get conn, comment_path(conn, :show, uuid)
       end
     end
   end
 
   defp create_comment(_) do
-    comment = fixture(:comment)
+    comment = insert(:comment)
     {:ok, comment: comment}
   end
 end
diff --git a/test/eventos_web/controllers/event_controller_test.exs b/test/eventos_web/controllers/event_controller_test.exs
index d302367c3..7176fa862 100644
--- a/test/eventos_web/controllers/event_controller_test.exs
+++ b/test/eventos_web/controllers/event_controller_test.exs
@@ -21,8 +21,8 @@ defmodule EventosWeb.EventControllerTest do
   end
 
   setup %{conn: conn} do
-    account = insert(:account)
-    user = insert(:user, account: account)
+    actor = insert(:actor)
+    user = insert(:user, actor: actor)
     {:ok, conn: conn, user: user}
   end
 
@@ -35,30 +35,21 @@ defmodule EventosWeb.EventControllerTest do
 
   describe "create event" do
     test "renders event when data is valid", %{conn: conn, user: user} do
-      attrs = Map.put(@create_attrs, :organizer_account_id, user.account.id)
+      attrs = Map.put(@create_attrs, :organizer_actor_id, user.actor.id)
       attrs = Map.put(attrs, :address, @create_address_attrs)
 
       category = insert(:category)
       attrs = Map.put(attrs, :category_id, category.id)
       conn = auth_conn(conn, user)
       conn = post conn, event_path(conn, :create), event: attrs
-      assert %{"id" => id} = json_response(conn, 201)["data"]
+      assert %{"uuid" => uuid} = json_response(conn, 201)["data"]
 
-      conn = get conn, event_path(conn, :show, id)
+      conn = get conn, event_path(conn, :show, uuid)
       assert %{
         "begins_on" => "2010-04-17T14:00:00Z",
         "description" => "some description",
         "ends_on" => "2010-04-17T14:00:00Z",
         "title" => "some title",
-        "group" => nil,
-        "organizer" => %{
-          "description" => nil,
-          "display_name" => nil,
-          "domain" => nil,
-          "suspended" => false,
-          "uri" => "https://",
-          "url" => "https://",
-        },
         "participants" => [],
         "address" => %{"addressCountry" => "some addressCountry", "addressLocality" => "some addressLocality", "addressRegion" => "some addressRegion", "floor" => "some floor", "geom" => %{"data" => %{"latitude" => -20.0, "longitude" => 30.0}, "type" => "point"}, "postalCode" => "some postalCode", "streetAddress" => "some streetAddress"}
        } = json_response(conn, 200)["data"]
@@ -66,7 +57,7 @@ defmodule EventosWeb.EventControllerTest do
 
     test "renders errors when data is invalid", %{conn: conn, user: user} do
       conn = auth_conn(conn, user)
-      attrs = Map.put(@invalid_attrs, :organizer_account_id, user.account.id)
+      attrs = Map.put(@invalid_attrs, :organizer_actor_id, user.actor.id)
       attrs = Map.put(attrs, :address, @create_address_attrs)
       conn = post conn, event_path(conn, :create), event: attrs
       assert json_response(conn, 422)["errors"] != %{}
@@ -76,9 +67,9 @@ defmodule EventosWeb.EventControllerTest do
   describe "export event" do
     setup [:create_event]
 
-    test "renders ics export of event", %{conn: conn, event: %Event{id: id} = event, user: user} do
+    test "renders ics export of event", %{conn: conn, event: %Event{uuid: uuid} = event, user: user} do
       conn = auth_conn(conn, user)
-      conn = get conn, event_path(conn, :export_to_ics, id)
+      conn = get conn, event_path(conn, :export_to_ics, uuid)
       exported_event = ICalendar.export_event(event)
       assert exported_event == response(conn, 200)
     end
@@ -87,38 +78,29 @@ defmodule EventosWeb.EventControllerTest do
   describe "update event" do
     setup [:create_event]
 
-    test "renders event when data is valid", %{conn: conn, event: %Event{id: id} = event, user: user} do
+    test "renders event when data is valid", %{conn: conn, event: %Event{uuid: uuid} = event, user: user} do
       conn = auth_conn(conn, user)
       address = address_fixture()
-      attrs = Map.put(@update_attrs, :organizer_account_id, user.account.id)
+      attrs = Map.put(@update_attrs, :organizer_actor_id, user.actor.id)
       attrs = Map.put(attrs, :address_id, address.id)
-      conn = put conn, event_path(conn, :update, event), event: attrs
-      assert %{"id" => ^id} = json_response(conn, 200)["data"]
+      conn = put conn, event_path(conn, :update, uuid), event: attrs
+      assert %{"uuid" => uuid} = json_response(conn, 200)["data"]
 
-      conn = get conn, event_path(conn, :show, id)
+      conn = get conn, event_path(conn, :show, uuid)
       assert %{
                "begins_on" => "2011-05-18T15:01:01Z",
                "description" => "some updated description",
                "ends_on" => "2011-05-18T15:01:01Z",
                "title" => "some updated title",
-               "group" => nil,
-               "organizer" => %{
-                 "description" => nil,
-                 "display_name" => nil,
-                 "domain" => nil,
-                 "suspended" => false,
-                 "uri" => "https://",
-                 "url" => "https://",
-               },
                "participants" => [],
                "address" => %{"addressCountry" => "My Country", "addressLocality" => "My Locality", "addressRegion" => "My Region", "floor" => "Myfloor", "geom" => %{"data" => %{"latitude" => 30.0, "longitude" => -90.0}, "type" => "point"}, "postalCode" => "My Postal Code", "streetAddress" => "My Street Address"}
              } = json_response(conn, 200)["data"]
     end
 
-    test "renders errors when data is invalid", %{conn: conn, event: event, user: user} do
+    test "renders errors when data is invalid", %{conn: conn, event: %Event{uuid: uuid} = event, user: user} do
       conn = auth_conn(conn, user)
-      attrs = Map.put(@invalid_attrs, :organizer_account_id, user.account.id)
-      conn = put conn, event_path(conn, :update, event), event: attrs
+      attrs = Map.put(@invalid_attrs, :organizer_actor_id, user.actor.id)
+      conn = put conn, event_path(conn, :update, uuid), event: attrs
       assert json_response(conn, 422)["errors"] != %{}
     end
   end
@@ -126,26 +108,18 @@ defmodule EventosWeb.EventControllerTest do
   describe "delete event" do
     setup [:create_event]
 
-    test "deletes chosen event", %{conn: conn, event: event, user: user} do
+    test "deletes chosen event", %{conn: conn, event: %Event{uuid: uuid} = event, user: user} do
       conn = auth_conn(conn, user)
-      conn = delete conn, event_path(conn, :delete, event)
+      conn = delete conn, event_path(conn, :delete, uuid)
       assert response(conn, 204)
-      assert_error_sent 404, fn ->
-        get conn, event_path(conn, :show, event)
-      end
+      conn = get conn, event_path(conn, :show, uuid)
+      assert response(conn, 404)
     end
   end
 
   defp create_event(_) do
-    account = insert(:account)
-    event = insert(:event, organizer_account: account)
-    {:ok, event: event, account: account}
-  end
-
-  defp auth_conn(conn, %Eventos.Accounts.User{} = user) do
-    {:ok, token, _claims} = EventosWeb.Guardian.encode_and_sign(user)
-    conn
-    |> put_req_header("authorization", "Bearer #{token}")
-    |> put_req_header("accept", "application/json")
+    actor = insert(:actor)
+    event = insert(:event, organizer_actor: actor)
+    {:ok, event: event, actor: actor}
   end
 end
diff --git a/test/eventos_web/controllers/group_controller_test.exs b/test/eventos_web/controllers/group_controller_test.exs
deleted file mode 100644
index 6b4813037..000000000
--- a/test/eventos_web/controllers/group_controller_test.exs
+++ /dev/null
@@ -1,109 +0,0 @@
-defmodule EventosWeb.GroupControllerTest do
-  use EventosWeb.ConnCase
-
-  import Eventos.Factory
-
-  alias Eventos.Groups
-  alias Eventos.Groups.Group
-
-  @create_attrs %{description: "some description", suspended: true, title: "some title", uri: "some uri", url: "some url"}
-  @update_attrs %{description: "some updated description", suspended: false, title: "some updated title", uri: "some updated uri", url: "some updated url"}
-  @invalid_attrs %{description: nil, suspended: nil, title: nil, uri: nil, url: nil}
-
-  def fixture(:group) do
-    {:ok, group} = Groups.create_group(@create_attrs)
-    group
-  end
-
-  setup %{conn: conn} do
-    account = insert(:account)
-    user = insert(:user, account: account)
-    {:ok, conn: conn, user: user}
-  end
-
-  describe "index" do
-    test "lists all groups", %{conn: conn} do
-      conn = get conn, group_path(conn, :index)
-      assert json_response(conn, 200)["data"] == []
-    end
-  end
-
-  describe "create group" do
-    test "renders group when data is valid", %{conn: conn, user: user} do
-      conn = auth_conn(conn, user)
-      conn = post conn, group_path(conn, :create), group: @create_attrs
-      assert %{"id" => id} = json_response(conn, 201)["data"]
-
-      conn = get conn, group_path(conn, :show, id)
-      assert json_response(conn, 200)["data"] == %{
-        "id" => id,
-        "description" => "some description",
-        "suspended" => true,
-        "title" => "some title",
-        "uri" => "h",
-        "url" => "h",
-        "events" => [],
-        "members" => []
-      }
-    end
-
-    test "renders errors when data is invalid", %{conn: conn, user: user} do
-      conn = auth_conn(conn, user)
-      conn = post conn, group_path(conn, :create), group: @invalid_attrs
-      assert json_response(conn, 422)["errors"] != %{}
-    end
-  end
-
-  describe "update group" do
-    setup [:create_group]
-
-    test "renders group when data is valid", %{conn: conn, group: %Group{id: id} = group, user: user} do
-      conn = auth_conn(conn, user)
-      conn = put conn, group_path(conn, :update, group), group: @update_attrs
-      assert %{"id" => ^id} = json_response(conn, 200)["data"]
-
-      conn = get conn, group_path(conn, :show, id)
-      assert json_response(conn, 200)["data"] == %{
-        "id" => id,
-        "description" => "some updated description",
-        "suspended" => false,
-        "title" => "some updated title",
-        "uri" => "some updated uri",
-        "url" => "some updated url",
-        "events" => [],
-        "members" => []
-      }
-    end
-
-    test "renders errors when data is invalid", %{conn: conn, group: group, user: user} do
-      conn = auth_conn(conn, user)
-      conn = put conn, group_path(conn, :update, group), group: @invalid_attrs
-      assert json_response(conn, 422)["errors"] != %{}
-    end
-  end
-
-  describe "delete group" do
-    setup [:create_group]
-
-    test "deletes chosen group", %{conn: conn, group: group, user: user} do
-      conn = auth_conn(conn, user)
-      conn = delete conn, group_path(conn, :delete, group)
-      assert response(conn, 204)
-      assert_error_sent 404, fn ->
-        get conn, group_path(conn, :show, group)
-      end
-    end
-  end
-
-  defp create_group(_) do
-    group = fixture(:group)
-    {:ok, group: group}
-  end
-
-  defp auth_conn(conn, %Eventos.Accounts.User{} = user) do
-    {:ok, token, _claims} = EventosWeb.Guardian.encode_and_sign(user)
-    conn
-    |> put_req_header("authorization", "Bearer #{token}")
-    |> put_req_header("accept", "application/json")
-  end
-end
diff --git a/test/eventos_web/controllers/session_controller_test.exs b/test/eventos_web/controllers/session_controller_test.exs
index bae187c5b..58c062509 100644
--- a/test/eventos_web/controllers/session_controller_test.exs
+++ b/test/eventos_web/controllers/session_controller_test.exs
@@ -16,9 +16,9 @@ defmodule EventosWeb.SessionControllerTest do
   end
 
   setup %{conn: conn} do
-    account = insert(:account)
-    user = insert(:user, account: account)
-    event = insert(:event, organizer_account: account)
+    actor = insert(:actor)
+    user = insert(:user, actor: actor)
+    event = insert(:event, organizer_actor: actor)
     {:ok, conn: conn, user: user, event: event}
   end
 
@@ -37,7 +37,7 @@ defmodule EventosWeb.SessionControllerTest do
       conn = post conn, session_path(conn, :create), session: attrs
       assert %{"id" => id} = json_response(conn, 201)["data"]
 
-      conn = get conn, "/api/events/" <> Integer.to_string(event_id) <> "/sessions"
+      conn = get conn, session_path(conn, :show_sessions_for_event, event.uuid)
       assert hd(json_response(conn, 200)["data"])["id"] == id
 
       conn = get conn, session_path(conn, :show, id)
@@ -107,11 +107,4 @@ defmodule EventosWeb.SessionControllerTest do
     session = insert(:session)
     {:ok, session: session}
   end
-
-  defp auth_conn(conn, %Eventos.Accounts.User{} = user) do
-    {:ok, token, _claims} = EventosWeb.Guardian.encode_and_sign(user)
-    conn
-    |> put_req_header("authorization", "Bearer #{token}")
-    |> put_req_header("accept", "application/json")
-  end
 end
diff --git a/test/eventos_web/controllers/tag_controller_test.exs b/test/eventos_web/controllers/tag_controller_test.exs
index 8f4dc2bcb..8718cc002 100644
--- a/test/eventos_web/controllers/tag_controller_test.exs
+++ b/test/eventos_web/controllers/tag_controller_test.exs
@@ -16,8 +16,8 @@ defmodule EventosWeb.TagControllerTest do
   end
 
   setup %{conn: conn} do
-    account = insert(:account)
-    user = insert(:user, account: account)
+    actor = insert(:actor)
+    user = insert(:user, actor: actor)
     {:ok, conn: conn, user: user}
   end
 
@@ -85,11 +85,4 @@ defmodule EventosWeb.TagControllerTest do
     tag = fixture(:tag)
     {:ok, tag: tag}
   end
-
-  defp auth_conn(conn, %Eventos.Accounts.User{} = user) do
-    {:ok, token, _claims} = EventosWeb.Guardian.encode_and_sign(user)
-    conn
-    |> put_req_header("authorization", "Bearer #{token}")
-    |> put_req_header("accept", "application/json")
-  end
 end
diff --git a/test/eventos_web/controllers/track_controller_test.exs b/test/eventos_web/controllers/track_controller_test.exs
index 90b815210..56fb0810d 100644
--- a/test/eventos_web/controllers/track_controller_test.exs
+++ b/test/eventos_web/controllers/track_controller_test.exs
@@ -16,9 +16,9 @@ defmodule EventosWeb.TrackControllerTest do
   end
 
   setup %{conn: conn} do
-    account = insert(:account)
-    user = insert(:user, account: account)
-    event = insert(:event, organizer_account: account)
+    actor = insert(:actor)
+    user = insert(:user, actor: actor)
+    event = insert(:event, organizer_actor: actor)
     {:ok, conn: conn, user: user, event: event}
   end
 
@@ -94,11 +94,4 @@ defmodule EventosWeb.TrackControllerTest do
     track = insert(:track)
     {:ok, track: track}
   end
-
-  defp auth_conn(conn, %Eventos.Accounts.User{} = user) do
-    {:ok, token, _claims} = EventosWeb.Guardian.encode_and_sign(user)
-    conn
-    |> put_req_header("authorization", "Bearer #{token}")
-    |> put_req_header("accept", "application/json")
-  end
 end
diff --git a/test/eventos_web/controllers/user_controller_test.exs b/test/eventos_web/controllers/user_controller_test.exs
index ceca47fed..5430e8fee 100644
--- a/test/eventos_web/controllers/user_controller_test.exs
+++ b/test/eventos_web/controllers/user_controller_test.exs
@@ -3,21 +3,21 @@ defmodule EventosWeb.UserControllerTest do
 
   import Eventos.Factory
 
-  alias Eventos.Accounts
-  alias Eventos.Accounts.User
+  alias Eventos.Actors
+  alias Eventos.Actors.User
 
   @create_attrs %{email: "foo@bar.tld", password: "some password_hash", username: "some username"}
   # @update_attrs %{email: "foo@fighters.tld", password: "some updated password_hash", username: "some updated username"}
   @invalid_attrs %{email: "not an email", password: nil, username: nil}
 
   def fixture(:user) do
-    {:ok, user} = Accounts.create_user(@create_attrs)
+    {:ok, user} = Actors.create_user(@create_attrs)
     user
   end
 
   setup %{conn: conn} do
-    account = insert(:account)
-    user = insert(:user, account: account)
+    actor = insert(:actor)
+    user = insert(:user, actor: actor)
     {:ok, conn: conn, user: user}
   end
 
@@ -32,20 +32,20 @@ defmodule EventosWeb.UserControllerTest do
   describe "create user" do
     test "renders user when data is valid", %{conn: conn} do
       conn = post conn, user_path(conn, :create), @create_attrs
-      assert %{"user" => %{"id" => id, "account" => %{"avatar_url" => avatar_url}}} = json_response(conn, 201)
+      assert %{"user" => %{"id" => id, "actor" => %{"avatar" => avatar_url}}} = json_response(conn, 201)
       assert id > 0
       assert avatar_url == nil
     end
 
     test "renders errors when data is invalid", %{conn: conn} do
       conn = post conn, user_path(conn, :create), @invalid_attrs
-      assert json_response(conn, 400)["msg"] != %{}
+      assert json_response(conn, 422)["errors"] != %{}
     end
 
     test "renders user with avatar when email is valid", %{conn: conn} do
       attrs = %{email: "contact@framasoft.org", password: "some password_hash", username: "framasoft"}
       conn = post conn, user_path(conn, :create), attrs
-      assert %{"user" => %{"id" => id, "account" => %{"avatar_url" => avatar_url}}} = json_response(conn, 201)
+      assert %{"user" => %{"id" => id, "actor" => %{"avatar" => avatar_url}}} = json_response(conn, 201)
       assert id > 0
       assert avatar_url == "https://secure.gravatar.com/avatar/68b2910a6bb84a482d920e1057533100?default=404"
     end
@@ -88,11 +88,4 @@ defmodule EventosWeb.UserControllerTest do
     user = insert(:user)
     {:ok, user: user}
   end
-
-  defp auth_conn(conn, %User{} = user) do
-    {:ok, token, _claims} = EventosWeb.Guardian.encode_and_sign(user)
-    conn
-    |> put_req_header("authorization", "Bearer #{token}")
-    |> put_req_header("accept", "application/json")
-  end
 end
diff --git a/test/support/conn_case.ex b/test/support/conn_case.ex
index 7df4085ca..0723cb3da 100644
--- a/test/support/conn_case.ex
+++ b/test/support/conn_case.ex
@@ -23,6 +23,13 @@ defmodule EventosWeb.ConnCase do
 
       # The default endpoint for testing
       @endpoint EventosWeb.Endpoint
+
+      def auth_conn(%Plug.Conn{} = conn, %Eventos.Actors.User{} = user) do
+        {:ok, token, _claims} = EventosWeb.Guardian.encode_and_sign(user)
+        conn
+        |> Plug.Conn.put_req_header("authorization", "Bearer #{token}")
+        |> Plug.Conn.put_req_header("accept", "application/json")
+      end
     end
   end
 
diff --git a/test/support/data_case.ex b/test/support/data_case.ex
index 38c7cf419..127cf5f83 100644
--- a/test/support/data_case.ex
+++ b/test/support/data_case.ex
@@ -38,7 +38,7 @@ defmodule Eventos.DataCase do
   @doc """
   A helper that transform changeset errors to a map of messages.
 
-      assert {:error, changeset} = Accounts.create_user(%{password: "short"})
+      assert {:error, changeset} = Actors.create_user(%{password: "short"})
       assert "password is too short" in errors_on(changeset).password
       assert %{password: ["password is too short"]} = errors_on(changeset)
 
diff --git a/test/support/factory.ex b/test/support/factory.ex
index 2d15551aa..67eef5e8d 100644
--- a/test/support/factory.ex
+++ b/test/support/factory.ex
@@ -15,13 +15,17 @@ defmodule Eventos.Factory do
   end
 
   def actor_factory do
-    {:ok, {_, pubkey}} = RsaEx.generate_keypair("4096")
-    username = sequence("thomas")
+    key = :public_key.generate_key({:rsa, 2048, 65537})
+    entry = :public_key.pem_entry_encode(:RSAPrivateKey, key)
+    pem = :public_key.pem_encode([entry]) |> String.trim_trailing()
+
+
+    preferred_username = sequence("thomas")
     %Eventos.Actors.Actor{
-      preferred_username: username,
+      preferred_username: preferred_username,
       domain: nil,
-      public_key: pubkey,
-      url: EventosWeb.Endpoint.url() <> "/@#{username}"
+      keys: pem,
+      url: EventosWeb.Endpoint.url() <> "/@#{preferred_username}"
     }
   end
 
@@ -45,6 +49,15 @@ defmodule Eventos.Factory do
     }
   end
 
+  def comment_factory do
+    %Eventos.Events.Comment{
+      text: "My Comment",
+      actor: build(:actor),
+      event: build(:event),
+      uuid: Ecto.UUID.generate(),
+    }
+  end
+
   def event_factory do
     actor = build(:actor)
     slug = sequence("my-event")
@@ -58,7 +71,7 @@ defmodule Eventos.Factory do
       organizer_actor: actor,
       category: build(:category),
       address: build(:address),
-      url: EventosWeb.Endpoint.url() <> "/@" <> actor.username <> "/" <> slug
+      url: "#{EventosWeb.Endpoint.url()}/@#{actor.url}/#{Ecto.UUID.generate()}"
     }
   end
 
@@ -77,14 +90,12 @@ defmodule Eventos.Factory do
     }
   end
 
-  def group_factory do
-    username = sequence("My Group")
-    %Eventos.Actors.Actor{
-      preferred_username: username,
-      summary: "My group",
-      suspended: false,
-      url: EventosWeb.Endpoint.url() <> "/@#{username}",
-      type: "Group",
+  def bot_factory do
+    %Eventos.Actors.Bot{
+      source: "https://mysource.tld/feed.ics",
+      type: "ics",
+      user: build(:user),
+      actor: build(:actor),
     }
   end
 end