nx_commons_ledger_gate.nx

nx_commons_ledger_gate.nx -- proves the ledger derives what the bench previously had to be TOLD, and measures honestly where the derivation STOPS. The headline result here is a LIMIT, not a win: a 3-cycle sybil ring DEFEATS the flow-through rule. Each member gives onward to someone it never received from, so its onward circulation looks perfect and its retained value is zero. Flow-through catches a 2-cycle (return trips) and is blind to longer cycles. That is measured below, not argued. A RULE THAT CATCHES THE SHAPE YOU IMAGINED IS NOT A RULE THAT CATCHES THE BEHAVIOUR. The ring is still convicted -- by the WITNESS layer, which it cannot satisfy at any cycle length -- so the two layers are complementary and NEITHER IS SUFFICIENT ALONE. Shipping flow-through as a sybil defence on its own would have been a false all-clear. license_tier: ORIGINAL expect_exit: 0