Returns ALL refund witnesses from a NUT-11 P2PK secret NB: Does not specify if they are expected to sign - see: getP2PKExpectedKWitnessPubkeys()
The NUT-11 P2PK secret.
With the public keys or empty array.
Returns ALL refund witnesses from a NUT-11 P2PK secret NB: Does not specify if they are expected to sign - see: getP2PKExpectedKWitnessPubkeys()