commit-tx.txt

Props to Pierre-Marie Padiou via https://github.com/lightningnetwork/lightning-rfc/issues/553#issuecomment-455641943

+------------+
| funding tx |
+------------+
      |
      |        +-------------+
      \--------| commit tx B |
               +-------------+
                  |  |  |  |  
                  |  |  |  | A's main output
                  |  |  |  \------------------ to A
                  |  |  |
                  |  |  |
                  |  |  |                  ,-- to B (& delay)
                  |  |  | B's main output /
                  |  |  \----------------<
                  |  |                    \ 
                  |  |                     `-- to A (& revocation key)
                  |  |
                  |  |                                                ,-- to B (& delay)
                  |  |                        +-----------------+    /
                  |  |                     ,--| HTLC-timeout tx |---<
                  |  | HTLC offered by B  /   +-----------------+    \
                  |  \-------------------<     (after timeout)        `-- to A (& revocation key)
                  |                       \
                  |                        `-- to A (& payment preimage)
                  |                        \
                  |                         `- to A (& revocation key)
                  |                   
                  |                                                   ,-- to B (& delay)
                  |                           +-----------------+    /
                  |                        ,--| HTLC-success tx |---<
                  | HTLC received by B    /   +-----------------+    \
                  \----------------------<     (w/ payment preimage)  `-- to A (& revocation key)
                                          \
                                           `-- to A (after timeout)
                                           \
                                            `- to A (& revocation key)