Submit an attempt
Every attempt is checked digit by digit, against a video or two witnesses' statements, before it joins the rankings.
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Online submissions open once review is in place. Attempts recorded under the rules before then still count: keep the video or your witnesses’ details and submit when the form opens.
- Under 1,000 digits: one continuous, unedited video with a transcript, or two adult witnesses who are not related to you.
- From 1,000 digits: two adult witnesses who both represent one school, university, or pi, math, or memory group.
- From 10,000 digits: the witnesses, a video with a transcript, and a live adjudicator.