gistfile1.clj

(def identifier
  (around
   whitespaces
   (choice
    [(<$> (partial apply vector)
          (*> (string "#")
              (<* number (string "#"))))
              ; ^ I think you should be using just number here right?
              ; you are trying to parse (many1 digit)
     (<$> (partial apply vector)
          (*> (string "#")
              (<* number (string "="))))])))
              ; ^ same applies here