How long is a DOI number?

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Tags

  1. #unique
  2. #begin
  3. #number
  4. #designed
  5. #publisher
  6. #prefix
  7. #assigned
  8. #flexible
  9. #slash
  10. #digits
  11. #suffix
  12. #identification
  13. #contain
  14. #organizations
  15. #separated
  16. #numbers
  17. #standards