Is there a way to get the private key out of an
P2SH-P2WPKH address, using Bitcoin Core 0.15.1?
If not, is there a way to get the origin
P2WPKH address to get the private key out of this address?
In 0.15.1 you'll need to find the P2PKH address corresponding to the key (it's the argument to
addwitnessaddress you used for creating the address in the first place), and pass that to
In 0.16, things will likely just work.