Coverage · measurement power

The denominator behind a zero

Every stage is computed at build time from snapshot 2026-08-22. The final zero is reported with its full measurement denominator.

1. 1

   Registry members

   Current census members in the snapshot.

   160
2. 2

   History sufficient

   At least 4 distinct weekly observations.

   132
3. 3

   Two axes measurable

   Development velocity and citation signals are both measurable.

   21
4. 4

   Gate eligible

   History, axis coverage, cohort floor, and reference-measurement rules applied.

   18
5. 5

   Rising published

   Positive signals published after two-axis convergence.

   0

Sensitivity to the axis z threshold

The current methodology uses z ≥ 1, a cohort floor of 5, and at least 5 average weekly commits for development velocity. The table changes only the z threshold; all other rules stay fixed.

Axis z threshold	Activity floor	Convergence signals
z ≥ 0.5	5 commits/week	0
z ≥ 1.0	5 commits/week	0
z ≥ 1.5	5 commits/week	0

Return to the coverage atlas