Quote from: invisibleecho on Today at 05:55:05 PM

Quote from: dominoshark on Today at 05:35:31 PM

Hello,

I am a programmer specializing in creating unique solutions for cryptographic puzzles. Recently, I developed a custom code designed to search for private keys specifically for Puzzle #67. If you're interested in purchasing it, feel free to contact me via email at vita.to@yahoo.com. The price for this solution is $200.

Additionally, if you require custom code for other puzzles or challenges, I am available to create tailored solutions based on your needs. I look forward to receiving your messages and collaborating with you on exciting projects.

Thank you for your suggestion. Is this feasible? Can I receive a donation by sharing the code in this topic?

Most likely not. I even wonder how you were thinking that anyone would pay $200 for a program which is said to find the solution of btc puzzle 67 which in return is, around $600k. My alarm bell would ring hard.
If it's a shitty python script then don't even waste your computational resources with it. If it's just generating random addresses from any private key within the range begin and range end - also don't waste your time due to the birthday paradox.

I wonder why people always come up with such stupid statements and I'm so sick and tired of it.
We are talking about the 67 bitcoin puzzle which has approx. 73 quintillion possible solutions. ECC operations are slow, even if optimized.
I'm a rust developer and I optimized every possible ECC operation, yet my programs don't match the speed of albertos keyhunt (even though I'm using optimization techniques like point addition rather than scalar multiplication).
There is no shortcut to iterate over the entire keyspace faster. You only can reduce the needed steps to find the solution if you can make use of some algorithms like BSGS or Pollard Rho - However, currently we can only use those algorithms on known public keys due to the nature of these algorithms (so 135 and above).

I'm sorry if this came out rude - but my code is likely faster than your program and I would never think about to sell it for even 1 cent. That's because it's far more likely to get hit by lightning rather than finding a needle in a haystack of 73 quintillion keys with the current computational limit of home PCs.

I agree and say the following: Renting a GPU as I see on the privatekey website is good for those who rent, but it must be very bad for owners to find puzzles