Optional
Support ProofOfSolve
Donations help fund prizes and keep the free puzzles free. They're completely optional. Donating never gives you extra tries, hints or a better chance to win.
Thank you! Your donation is on its way. Bitcoin payments usually confirm within an hour.
Donate with Bitcoin
Payment opens in a new tab on pay.proofofsolve.com, our own BTCPay Server. It shows a Bitcoin address and QR code for the exact amount, and the bitcoin goes straight to our wallet. There's no account to make and no middleman. Your wallet adds its usual network fee.
Good to know
- Donations go toward prizes and running the site. Every prize wallet is public on the Puzzles page, so you can watch them on the blockchain.
- ProofOfSolve isn't a charity, so donations aren't tax-deductible.
- Bitcoin payments can't be reversed. If you send the wrong amount, email support@proofofsolve.com.