Puzzle 70 One sigle thread

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I love to read the history of the previous puzzles solved, in this occasion we have the 70 bit puzzle solved by Unknown  

In the next post ( Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it ) the user arulbero write that solve the puzzle 70 in his server took near to 12 hrs, here i need to mention that he don't solve originally the puzzle, he only was trying to get the private key for to keep it for the record of the puzzles. Here is the message:


He write "It took almost 12 hours to find the #70 on my system (Intel® Xeon® CPU E3-1505M v6 @ 3.00GHz + 32 GB RAM). No GPU, only CPU (1 core, my program is not multithread)."

Points to considerate:

  • I understand that "almost 12 hours" should be somethin between 11 and 12 hours
  • I don't know if he using all the 32 GB of RAM
  • Only One thread
  • No GPU


I as the developer of keyhunt I try to compare Apples with apples here is keyhunt solving the 70 bit puzzle


The result for keyhunt was better because It solve the puzzle in just 9 hours using only one thread and only 23 GB of RAM, my CPU was very similar to the arulberu's CPU.


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