sorry to ask again, I need some help here.... 

How are you guys testing the "potential" private key solution? Are you using for example Electrum and "sweep private keys" to the corresponding Wallet: 179sxfh6rw6bHSo5wVUhLP96k46QaEzVP  ?

or doing all the steps:  private key -> public key; public key -> address and see if match with the address above?   

thank you