-- --- -. . .-. ---

123456
Across
  1. 2. A single cycle in a mining or trading process
  2. 5. Not connected to the network or internet
  3. 6. Where different types of currency are traded
Down
  1. 1. To request a trade on an exchange; a sequence
  2. 3. A point of connection within a large computer network
  3. 4. Someone who validates transactions by solving complex math