I have couple of keys of path m/0/0
TPriv- Extended private key (pvt key+chain code)
TPub- Extended public key (public key+chain code)
Now I generate an address of of the TPub key and revived funds
Question - To spend the funds how do I sign them I mean do I sign them using the TPriv key or I need to derive a private key from the TPriv key ?
Or can I remove the chain code from TPriv and then sign