K3's claim count trajectory — v1.3: 386, v1.5: 403 (+17), v1.6: 415 (+12) — shows a decelerating growth rate (17 then 12) that may indicate approaching claim saturation for the current era scope — alternatively, the deceleration may reflect the calibration process: as claims are refined and structurally tightened, new claims must meet higher standards for scoreability and verifiability — the NEWSLOG.md innovation in v1.6 raises the bar further: future claims must be groundable in news events rather than purely speculative