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Pay to play
The 12 clues unlock right here after you pay in bitcoin. You also get an entry code. It shows the clues on any device, and it gives you 3 tries every 24 hours until the puzzle is solved.
Payment window not showing up? Open the payment in a new tab.
You pay on this page through pay.proofofsolve.com, our own BTCPay Server. After you send it, your payment can take up to 10 minutes to show up. Your wallet adds its usual network fee. Entry fees aren't refundable and don't go into the prize.
Already paid? Enter your entry code
Lost your code? Find it with your invoice ID.
You're in
Your entry code:
Screenshot it or write it down. It opens the clues on any other device, and every answer you send uses it. Keep it private: anyone who has your code can see the clues and use your tries, and if they answer first with it, the win is theirs.
The clues
Corrections
Submit your answer
Enter the 12 words in clue order, spelled as on the BIP39 English list (a sign may say “teams” or “team’s” when the word is “team”). Capital letters and spaces don’t matter. You get 3 tries every 24 hours. Words that don't make a valid seed are caught before they're sent and never use a try. Tip: paste all 12 words into the first box.
Correct, and you're first
You solved it!
Your claim code:
- Screenshot this screen so you have your code and the time: .
- Email support@proofofsolve.com from with your claim code. If you'd like, add where you're from and the name you want to go by, for the winner announcement.
- We reply with the wallet passphrase, usually within 24 hours. Then follow the steps on our How to claim page to move the prize to your own wallet.
Talk it over on Reddit
Trade ideas, ask questions and follow announcements with other players on r/proofofsolve. Share ideas, not answer words: posts that give words away are removed.
How winning works
- Every answer is timestamped by our server the moment it arrives. The first correct one wins.
- The winner gets a claim code on screen, emails it to us, and receives the wallet passphrase.
- Then we publish the answer and its salt here, so anyone can check them against the fingerprint posted before the puzzle opened.
- The prize wallet and the payout are on the Bitcoin blockchain for anyone to see.
Full details: official rules and how to claim a prize.