the key of puzzle # 64 is found
between 10000000000000000000 --- 14000000000000000000
hex
0000000000000000000000000000000000000000000000008AC7230489E80000 --- 000000000000000000000000000000000000000000000000C249FDD327780000
If the information helps you and you can solve it, if you want to thank, send here 3QWcjuY72EyouLmkRY4FbuoM1V7mA6tyqv
Wrong range, but interesting solving of something)