I believe this was recently mentioned on CP;
   [1]https://www.theatlantic.com/ideas/archive/2019/11/my-grandfathers-ro
   le-nixons-impeachment-battle/601678/?utm_medium=offsite&utm_source=yaho
   o&utm_campaign=yahoo-non-hosted&yptr=yahoo
   "Within the thousand-page document, my grandfather found two
   transcripts of the same conversation from April 16, 1973, between Nixon
   and Assistant Attorney General Henry Petersen. However, the two
   transcripts were so different that no oneânot even journalists or
   Nixon-administration membersâhad noticed that they represented the same
   conversation. Nixon had doctored the transcripts, and mistakenly
   released an unedited version along with the edited one. The doctored
   version contained far more words that were marked âinaudible,â and
   other words were changed so as to render sentences meaningless. My
   grandfather wrote to the Washington Post reporters Carl Bernstein and
   Bob Woodward, [2]who broke the story about the transcript
   discrepancies.

   [3]Read more: How our readers responded to Watergate
   White House spokespeople tried to pass off the differences as mere
   typist errors, but as my grandfather asked the Associated Press, âHow
   could people listen to the same piece of tape and hear different
   words?â The House Judiciary Committee demanded that Nixon release the
   unedited transcripts, and the restâthe Supreme Court case United States
   v. Nixon, [4]the release of the â[5]s[6]moking [7]g[8]unâ
   tape, impeachment hearings, political chaos, and Nixonâs ultimate
   resignationâis history.
   [end of partial quotation]
   Has anyone heard from the Cypherpunks who held the data that later made
   its way to the CP Archives, specifically the 1995 file?
                Jim Bell

References

   1. https://www.theatlantic.com/ideas/archive/2019/11/my-grandfathers-role-nixons-impeachment-battle/601678/?utm_medium=offsite&utm_source=yahoo&utm_campaign=yahoo-non-hosted&yptr=yahoo
   2. https://archive.org/stream/nsia-TapeTranscriptsAlterations/nsia-TapeTranscriptsAlterations/Tape%2520Transcripts%2520Alters%252004_djvu.txt
   3. https://www.theatlantic.com/letters/archive/2018/09/nixon-watergate-letters/568771/
   4. https://watergate.info/1972/06/23/the-smoking-gun-tape.html
   5. https://watergate.info/1972/06/23/the-smoking-gun-tape.html
   6. https://watergate.info/1972/06/23/the-smoking-gun-tape.html
   7. https://watergate.info/1972/06/23/the-smoking-gun-tape.html
   8. https://watergate.info/1972/06/23/the-smoking-gun-tape.html