I send data through a wormhole and return True/False
        depending on whether or not the hash matched at the receive
        side.

def send(self):
        """I send data through a wormhole and return True/False
        depending on whether or not the hash matched at the receive
        side.
        """
        def _confirm(input_message):
            if input_message == 'Confirmed!':
                self.confirmed = True

        yield self.start_tor()
        self._w = wormhole.create(u'axotor', RENDEZVOUS_RELAY, self._reactor,
                                  tor=self._tor, timing=self._timing)
        self._w.set_code(self._code)
        self._w.send_message(self.data+h.sha256(self.data).hexdigest())
        yield self._w.get_message().addCallback(_confirm)
        yield self._w.close()
        self._reactor.stop()
        return