The object is named Root.

[harsh-98]

Can we specify the name for object?

[jkmrto]

The name of the object is picked up from the title attribute

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "Example",
  "id": "http://example.com/exampleschema.json",
.......
}

In that schema, Example would be the name of the schema