As you know Scottish law varies from English/Welsh law, in Scotland divorce is initiated by writ (sheriff court) or Summons (court of sessions) if you know if the simplified procedure was used and at which court for a fee the court will provide you with a copy of the divorce. If you had an address in Scotland details would have been provided to that address or you may have success with the National Archives of Scotland.
I would suggest you do not remarry until you are sure you are divorced.