Nor do we have an historical record from before A.D. 100 of what was considered Scripture.”
We have actual copies and fragments.
Unlike that missing list of Paul’s Traditions.
The oldest complete codices only go back to the 4th century. This is also the time that the definitive canon was settled by Catholic bishops.
Unlike that missing list of Pauls Traditions.
As oral tradition there would be no "list," but only the day to day teaching and practices that were universally held. You can find this by reading the Church Fathers. BTW, they do not include the writings of Luther or the Scofield Bible Commentary.