Eight shells. Like the ball dropping.
Eve: [0,0,-8,0,0] — the big drop
Sister A: [1,0,0,0,0] — +1
Sister B: [-1,0,0,0,0] — -1
...you get it. +2 -1 walk.
Each time someone at Mutiny downloaded, modified, re-uploaded — we added a shell. Depth = history.
No central server. Just ((((((((1)))))))) getting deeper.