soliton's_Bitcoin#7

123456789
Across
  1. 4. wallet
  2. 6. exchange
  3. 7. cache
  4. 8. mining pool protocol
  5. 9. transaction
Down
  1. 1. sextuple
  2. 2. Bitcoin Core RPC
  3. 3. FUDster
  4. 5. address