thank you for the reply , well i did what you had to tell me to take the known wif to test my rigs , just need more challenge , it doesnt need 40 strong GPUs to crack only 12 lost wif character with this program , if this coins have an owner , let the owner talk to me and maybe we can make collaboration.
I'm sure if this key was real, the owner would have already found the key by now, there is no evidence suggesting this address corresponds to that WIF.
And I believe there is much more to improve on this tool, as I believe there is a way to up the speed by ten folds.
thank you for the reply , i m just asking do you have more data like that so i can test my rigs with that data , you just answer yes or no

Ok, here you go, start grinding away!
For keys starting with 5J:
5J1111111115bCRZhiS5sEGMpmcRZdpAhmWLRfMmutGmPGL3vBS
5Jzzzzzzzzz5bCRZhiS5sEGMpmcRZdpAhmWLRfMmutGmPFNXqkb
For keys starting with 5K:
5K1111111115bCRZhiS5sEGMpmcRZdpAhmWLRfMmutGmPES53YJ
5Kzzzzzzzzz5bCRZhiS5sEGMpmcRZdpAhmWLRfMmutGmPFaZr5u
For compressed ones if you needed help let me know.😅