After the run, seven reviewers each took one group of steps, re-derived every claim, recomputed the finite computations by their own methods, checked every citation against its source and hypotheses, and graded each step correct, minor or error. They found 15 errors and wrote eight corrections; the final verdict of that audit is (Summary 9.5).
In the repair pass that followed, the errors that no step of the search had repaired went to four fresh agents, Agents X1–X4, and each agent's repairs went to a fresh reviewer who had not written them. The reviewers re-derived every repaired step and recomputed every count by their own method Re-check V1 to Re-check V5. Every repair holds, a few after a change of wording; one step, which had left a hypothesis open that a published decomposition settles, failed and was replaced on a second attempt.