Optional randao verification when producing blocks

apis/validator/block.v2.yaml

@@ -28,6 +28,15 @@ get:
       description: "Arbitrary data validator wants to include in block."
       schema:
         $ref: '../../beacon-node-oapi.yaml#/components/schemas/Graffiti'
+    - name: skip_randao_verification
+      in: query
+      required: false
+      description: |
+        Skip verification of the `randao_reveal` value. If this flag is set then the
+        `randao_reveal` must be set to the point at infinity (`0xc0..00`). This query parameter
+        is a flag and does not take a value.
+      schema: {}
+      allowEmptyValue: true
   responses:
     "200":
       description: Success response