3 Bitcoin Challenge
Prove the Earth is a spinning globe using real, observable evidence. No theories. No math models. No appeals to authority. Just proof anyone can verify for themselves.
3 BTC Prize
The challenge remains unclaimed. Can you be the first?
Your proof must be
Verifiable
Anyone should be able to independently replicate it.
Repeatable
It must produce consistent results every time.
Observable
No purely mathematical models or theoretical arguments.
No Appeal to Authority
Citing sources like NASA images/videos alone is not sufficient.
Before You Submit
You must either:
Watch the featured video of the day for 2 weeks
On the Flat Earth Clock app
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
Present Your Evidence
Think you have proof of a spinning globe? Submit your claim with supporting evidence below. Upload images, videos, or documents — we will assess and respond.