Any old user/client sends a GET to http://example.com/api/submissions/0001, they get this back:

submissions0001-anyuser.json

{
  "Id": "0001",
  "Title": "An Awesome Talk",
  "Abstract": "Magnificent abstract goes here...",
  "Status": "Submitted",
  "Links": [
    {
      "Href": "http://example.com/api/submissions/0001",
      "Rel": "self",
      "Method": "GET"
    }
  ]
}