PCV5

PCV5 is a round-number lattice the chart keeps tripping over.
On the small clocks it hums in tight teeth—25/50/100—like gears meshing under the hood.
On big clocks (and that lone 15m gate) the skeleton shows: 1000 spines, 500 ribs, with 250/750 pulse points marked inside each thousand.
Everything snaps to the tick, projected both ways from the last heartbeat only.
Each choir can be muted—flip a switch, the line goes silent; flip another, it sings.
Not support, not resistance—just the grid the candles accidentally confess.