3 BTC Challenge Rules

The Challenge

Flat Earth Dave is offering 3 Bitcoin to anyone who can provide verifiable, repeatable, observable proof that we live on a spinning ball hurtling through space.

Your Proof Must Be

1. Verifiable — anyone should be able to independently replicate it.
2. Repeatable — it must produce consistent results every time.
3. Observable — no purely mathematical models or theoretical arguments.
4. No appeal to authority — citing sources like NASA images/videos alone is not sufficient.

Important Requirements Before Submitting

You must either:

• •Watch the featured video of the day for 2 weeks on the Flat Earth Clock app, or
• •Watch the first 10 videos in the Crash Course

After that, you must:

• •Review the FAQ page on the app or website
• •Ensure your submission has not already been addressed

How to Submit

Head to the challenge page and submit your claim with a detailed description and any supporting evidence (images, videos, or documents).