Copyright - Yes

The text of a revelation by Joseph Smith about selling the copyright of the Book of Mormon has been kept from the public until the publishing of the Joseph Smith Papers Project volume "Revelations and Translations." There, on pages 30-33 the revelation is in full, just as David said it was: Joseph did try to sell the copyright of the Book of Mormon in Canada.

Disparagers of David have tried to mar his reliability by pointing to the fact that David said they went to "Toronto" not "Kingston" Canada. The truth is, his brother kept the Revelation Book and thus David knew exactly what the revelation said. By citing "Toronto" (where buyers could be found) David tried to minimize the damage to Joseph, so the error was one of circumventing Martin Harris and not of getting the city wrong also. (See False Revelations for further light.)