---
Transfert:
  Fingerprint:
  Protocol:
    Money:
      from:
      to:
      amount:
      currency:
      Stamps:
      - operation:
        from:
        to:
        date_time:
    Hard-Software:
      from:
      to:
      quality:
      quantity:
      Stamps:
      - operation:
        from:
        to:
          date_time:
  Service:
    Provider:
      provider_id: 
      label_from:
      label_service:
      label_to:
      Stamps:
      - operation:
        from:
        to:
        date_time:
  Notes:
  - operation:
    note:
    datetime:
    agent:
...