pending --------------+
       |                  |
       | All authz        |
       | "valid"          |
       V                  |
     ready ---------------+
       |                  |
       | Receive          |
       | finalize         |
       | request          |
       V                  |
   processing ------------+
       |                  |
       | First            |
       | certificate      | Error or
       | issued           | Authorization failure
       |                  |
       |                  V
       |               invalid
       V               
     valid----------------+             
       |                  |
       | STAR             |
       | Certificate      | Natural
       | canceled         | Expiration
       V                  |
    canceled             ='=