nonce404

✅ Done at Step 128. Here’s my calculation string: (lots of calculations)!

Every point on a curve has two valid halves. This technique could help find the right half. A 2^256 key can be cracked in 256 steps using this method.

One million bucks for Puzzle 135 is still a steal compared to cracking a real 2²⁵⁶ key. By the way, did you ever try using an actual Bitcoin key longer than 120 bits?

Doesn't work for Puzzle 135 though. It’s all about those little toy curves. On secp256k1, even if you know the private key is under 2^135, the points Q=k·G look just like any others. The x,y coordinates aren’t gonna…