Crowdsourced verification of π's digits — one chunk at a time
— Chunks Submitted
— Verified Chunks
— Contributors
— Digits Covered
Step 1 — Install mpmath
pip install mpmath
Step 2 — Run This Python Script
from mpmath import mp, pi

def get_pi_chunk(start, length):
    mp.dps = start + length + 10
    pi_str = mp.nstr(pi, start + length, strip_zeros=False)
    pi_str = pi_str.replace('.', '')
    return pi_str[start - 1 : start - 1 + length]

# Change these numbers to whatever chunk you want
start = 1    # which digit to start from
length = 1000 # how many digits to compute

chunk = get_pi_chunk(start, length)
print(chunk)
Step 3 — Submit Your Digits
Copy the output, head to the ② Submit tab, paste your digits and enter your name. That's it!
Submit Your Chunk
How Verification Works
Your submission is compared against other independent submissions of the same chunk range.

■ Verified — 3+ independent submissions agree
■ Pending — Fewer than 3 submissions, awaiting consensus
■ Disputed — Submissions disagree — more needed to resolve
π
Loading chunks...
The Idea
π has been computed to 314 trillion digits — but what if the community could extend and independently verify those digits together?

CrowdPi is a platform where anyone can compute a chunk of π's digits, submit it, and have it verified by consensus — no central supercomputer needed.

When multiple people independently compute the same chunk and agree, it's verified. Disagreements get flagged, and more submissions resolve them. The truth emerges from the crowd.
Why This Matters
π is believed to be a normal number — meaning every sequence of digits appears with equal frequency. But this has never been formally proven.

A large enough crowdsourced dataset could help mathematicians study the distribution of π's digits statistically — real citizen science, not just a fun project.

Your chunk might matter.