diff --git a/api/BR/portais-arcgis-brasil/por/openapi.yaml b/api/BR/portais-arcgis-brasil/por/openapi.yaml
index 86e41c5..39023fb 100644
--- a/api/BR/portais-arcgis-brasil/por/openapi.yaml
+++ b/api/BR/portais-arcgis-brasil/por/openapi.yaml
@@ -24,6 +24,8 @@ info:
     Discussão em https://github.com/HXL-CPLP/COD-Services-API-doc/issues/4
 
     - TODO: 
+      - https://www.w3.org/TR/vocab-dcat-2/
+      - https://spec.dataportals.org/
       - https://developers.arcgis.com/rest/
       - https://developers.arcgis.com/rest/services-reference/get-started-with-the-services-directory.htm
       - https://community.esri.com/t5/arcgis-hub-questions/arcgis-open-data-api/m-p/708359
@@ -40,8 +42,8 @@ info:
 #   - https://docs.google.com/spreadsheets/d/16SW1kOv01IKcdO5nZvGjnjat7DrUqFem4mcWC2OQbz4/edit#gid=332977705
 servers:
 
-  - url: https://data.humdata.org/api/3/action
-    description: "(TODO: Remove this) HDX Production server"
+  # - url: https://data.humdata.org/api/3/action
+  #   description: "(TODO: Remove this) HDX Production server"
 
   - url: https://www.data.rio/
     description: "{[urn:data:xz:iso:3166-2:BR-RJ][urn:data:un:p:BR3304557]} data.rio"
@@ -53,27 +55,14 @@ servers:
 #       and CKAN. For example, the file
 # https://github.com/teamdigitale/api-openapi-samples/blob/master/external-apis/api.daf.teamdigitale.it.yaml.src
 paths:
-  /package_list:
+  /data.json:
     get:
-      parameters:
-        - in: query
-          name: limit
-          description: >
-            If given, the list of datasets will be broken into pages of at most
-            `limit` datasets per page and only one page will be returned at a time
-          required: false
-          schema:
-            type: integer
-            default: 250
-            # NOTE: is possible to not use a default and display EVERYTING.
-            #       But this can freeze user browser even if a 200kb response.
-        - in: query
-          name: offset
-          description: >
-            When `limit` is given, the `offset` to start returning packages from
-          required: false
-          schema:
-            type: integer
+      description: |
+        Nota: esta requisição irá acionar <https://www.data.rio/data.json>.
+        O arquivo é extremamente grande (seu navegador pode travar) e no
+        momento não está claro se é possível limitar quantidade da resposta.
+
+        Considere usar uma ferramenta que suporte respostas grandes.
       responses:
         '200':
           description: >
@@ -84,50 +73,18 @@ paths:
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/CkanReply'
-  /tag_list: {}
-  # TODO: /tag_list 
-  # https://docs.ckan.org/en/latest/api/index.html#ckan.logic.action.get.tag_list
-
-  /tag_show: {}
-  # TODO: /tag_show 
-  # https://docs.ckan.org/en/latest/api/index.html#ckan.logic.action.get.tag_show
-
-
-components:
-  # NOTE: OpenAPI 3.0 seems to not allow use $ref outside schemas
-  #       (but OpenAPI 3.1 allow it), but the teamdigitale/api-openapi-samples
-  #       uses this as part of build scripts. We will keep it simple without
-  #       use extra steps.
-  # responses:
-  #   CkanResponse:
-  #     description: >-
-  #       Standard Ckan Reply. See http://docs.ckan.org/en/latest/api/index.html.
-
-  schemas:
-    CkanReply:
-      # From teamdigitale/api-openapi-samples
-      type: object
-      required:
-        - result
-        - success
-        - help
-      properties:
-        success:
-          type: string
-        result:
-          anyOf:
-            - type: object
-            - type: array
-        error:
-          type: object
-        help:
-          type: string
-          format: url
-        status:
-          type: boolean
-          enum:
-            - true
-            - false
+                type: object
+                example:
+                  {
+                    "@context":"https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld",
+                    "@type":"dcat:Catalog",
+                    "conformsTo":"https://project-open-data.cio.gov/v1.1/schema",
+                    "describedBy":"https://project-open-data.cio.gov/v1.1/schema/catalog.json",
+                    "dataset":
+                      [
+                        {"@type":"dcat:Dataset"},
+                        {"@type":"dcat:Dataset"},
+                        {"@type":"dcat:Dataset"}
+                      ]
+                  }
+  
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