Digital Company Stamp / Seal

Hi, Can you please help me with following queries on digital stamp:

  1. Legal implications of using digital company stamp or seal?
  2. Does it hold same value or purpose as physical seal?
  3. Who is responsible for safe keeping this digital stamp - IT or HR?
  4. Where do I get the digital stamp and seal for the company? Legal Firm? Online?
  5. For digital stamp to be created, does it need to hold only registered address ? or Branch office address are allowed?