3 ms·

Bitcoin puzzle #130 solved: 13 BTC ($800k) won; 949 BTC ($60M) left to be won

• mrb 2y ago
  It is a coincidence that this happens merely 11 days after puzzle #66 was won (see https://news.ycombinator.com/item?id=41547395 https://news.ycombinator.com/item?id=41547395) since the expected time to solve this puzzle is a few months with a few hundred GPUs.
  • ano-ther 2y ago
    Was this one stolen as well? Or did they find a way to transfer the funds safely this time?
    • mrb 2y ago
      This one couldn't have been stolen, because puzzles multiple of 5 (125, 130, 135...) have had their public key already published in 2019 (IIRC), so everyone—the solver and blockchain listeners—has equal advantage. Puzzle #130 uses a secp256k1 private key with 130 unknown bits. It takes 2^65 work to brute force. When the solver posts their transaction to withdraw the funds, the public key included in the blockchain was already known. It doesn't provide new information. With puzzle #67 the public key in the transaction becomes known to all when the solver attempts to withdraw the funds, so some people rushed to compute (in 2^33.5) the private key and manage to find it in seconds/minutes.
• deleted 2y ago
  [deleted]
• brocode123 2y ago
  [flagged]