 [semidet]ecdsa_verify(+Key, 
+Data, +Signature, +Options)True iff Signature can be verified as the ECDSA signature for
Data, using the EC public key Key.
[semidet]ecdsa_verify(+Key, 
+Data, +Signature, +Options)True iff Signature can be verified as the ECDSA signature for
Data, using the EC public key Key.
Options:
- encoding(+Encoding)
- Encoding to use for Data. Default is hex. 
Alternatives areoctet,utf8andtext.