basically it's a waste of time, if you want to solve it just invest in a lot of gpu, there's no other way to solve it. Are you tired?
Mybe private key cracker asic with ??ths 🤪
asic does sha256d which is 2 sha256 we only need 1, I think one guy got his asic to forcefully output before hashing the second time but sha256 is not what's holding us back it's secp256k1 that's limiting speed.