Thanks for the correction, and sorry for getting that wrong. I genuinely didn't know that.

Found that paperwork here: https://www.sqlite.org/copyright-release.html

I will make sure not to spread that misinformation further in the future!

Update: I had a look in fossil and counted 38 contributors:

  brew install fossil
  fossil clone https://www.sqlite.org/src sqlite.fossil
  fossil sql -R sqlite.fossil "
    SELECT user, COUNT(*) as commits
    FROM event WHERE type='ci'
    GROUP BY user ORDER BY commits DESC
  "