For several years, you have prepared the tax return for Alpha Corporation, a closely held corporation engaged in manufacturing garden tools. On February 20 of the current year, Bill Johnson, the president of Alpha Corporation, delivered to your office the files and information necessary for you to prepare Alpha’s tax return for the immediately preceding tax year. Included in this information were the minutes of all meetings held by Alpha’s Board of Directors during the year in question. Then on February 27, Bill stops by your office and hands you an “addendum” to the minutes of the director’s meeting held December 15 of the tax year for which you are preparing the tax return. The addendum is dated the same day as the director’s meeting, and authorizes a charitable contribution pledge of $20,000 to the local community college. With a wink and a big smile, Bill explains that the addendum had been misplaced. In reviewing the original minutes, you find no mention of a charitable contribution pledge. What should you do?