code: func (key PublicKey) Verify(signature []byte) bool {
  	if len(signature) < SignatureSize || signature[63]&224 != 0 {
  		return false
  	}
  	return Verify(signature, key)
  }
docs: // Verify uses key to report whether signature is a valid signature of message.
  // The first SignatureSize bytes of signature should be the signature; the
  // remaining bytes are the message to verify.