Three honest kills under the $0 CPU harness.
The research loop is designed to falsify. Before a mechanism is promoted into a public claim, it runs a preregistered kill-test on a CPU harness. Many candidates die there. That is the filter working.
Three representative patterns remain killed: hidden-state gains that collapse under action-set controls; claims that confuse a growable model property with a new intelligence crown; and finite-basis stories that do not survive leakage-clean reinspection at the first real-model rung.
The underlying nodes and paths remain in the public Research Program Ledger. These are not product capabilities or performance-leadership claims.
NULL / KILL / PROVEN-toy discipline