For a Poisson block process the 10th-percentile gap of an honest author is about one second by construction, so a fixed threshold flagged everyone. quick-follow x is the share of an author's blocks arriving within 1 s of the previous block divided by the network's share: 1 is normal, 2 or more is withheld-block behaviour; needs 10 samples. Bucket boundaries are selected as le="1.0" (Prometheus 3 normalises them to float strings). Threshold bases are transparent so authors without samples show blank cells, not red or blue. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CBgs2nSi4H2mdh8kD8vMX5