Hi, could you elaborate on how private keys are being generated and brute forced? It seems like a reliable random number generator std::mt19937_64 is being fully initialized by unsigned int (https://en.cppreference.com/w/cpp/numeric/random/random_device), which could make it less reliable:

Seems like brute-forcing 2^32 seeds, each for a few seconds on top-notch hardware could expose some keys with 5-6-7 mined symbol.