channel.ditaa

     Payer
       |
       |
       |
       V
+-------------+                               /------------=-----------------\
| Deposit TX  |----=--------------------------+ Lock funds so Payer cant     |
| cGRE        |                               | spend while channel in use.  |
+------+------+                               \------------------------------/
       |
       |
       |
      /+-\    PAYER_SIG & EXPIRED                  +-------------+
      |OR+---------------------------------------->| Timeout XT  +---->Payer
      \+-/                                         | cGRE        |
       |                                           +-------------+
       |                                                 :
       |                                                 |
       |                                      /----------+-------------------\
       |                                      | Recover funds if channel     |
       |                                      | expired.                     |
       |                                      \----------=-------------------/
       |                                   
       |                                   
       |                                   
      /+-\    PAYER_SIG & SPEND_SECRET             +-------------+
      |OR+---------------------------------------->| Change XT   +---->Payer
      \+-/                                         | cGRE        |
       |                                           +-------------+
       |                                                  :
       |                                                  |
       |                                      /-----------+------------------\
       |                                      | Recover remaining funds      |
       |                                      | after spend secret revealed. |
       |                                      \---------=--------------------/
       |                                   
       |                                   
       |                                   
       V                                      /------------------------------\
+-------------+                               | Close channel and force      |
| Commit TX   |----=--------------------------+ spend secret to be revealed  |
| cGRE        |                               | after payout delay plus at   |
+------+------+                               | least one block.             |
       |                                      \-----------=------------------/
       |
       |
       |
      /+-\    PAYEE_SIG & SPEND_SECRET & DELAY     +-------------+
      |OR+---------------------------------------->| Payout XT   +---->Payee
      \+-/                                         | cGRE        |
       |                                           +-------------+
       |                                                  :
       |                                                  |
       |                                      /-----------+------------------\
       |                                      | Funds sent to payee. Reveals |
       |                                      | spend secret AFTER funds     |
       |                                      | committed.                   |
       |                                      \-----------=------------------/
       |
       |
       |    PAYER_SIG & REVOKE_SECRET              +-------------+
       +------------------------------------------>| Revoke XT   +---->Payer
                                                   | cGRE        |
                                                   +-------------+
                                                          :
                                                          |
                                              /-----------+------------------\
                                              | Prevents spending of a       |
                                              | revoked commit transaction.  |
                                              \-----------=------------------/