code: def Hash(self):
          
          if not self.__hash:
              hashdata = self.RawData()
              ba = bytearray(binascii.unhexlify(hashdata))
              hash = bin_dbl_sha256(ba)
              self.__hash = UInt256(data=hash)
  
          return self.__hash
docs: Get the hash value of the Blockbase.
  
          Returns:
              UInt256: containing the hash of the data.