The 400-body target (P9-T6 checkpoint, 251 new bodies from 149) is crossed
on the coordinator's own whole-binary gate: c_regions=409, differing_bytes=0,
SHA-1 e173426c157384ebf1b6caf8c6fea18a85a14af9.
Final batch: B's last 2 family members (0x800578EC, 0x800577E8, both 100B),
11 consecutive first-attempt family matches closing the run. Cycle-4 total:
47 new bodies from worker B following the milestone-close directive
(reliable-rows over exploration). The family-as-a-set lever (scan for rows
calling a matched target; stable positions selector->arg2 sentinel->arg3
a1->arg9, per-row elsewhere) drove 11 first-attempt closes.
Workers: B 60 claims (rotated cleanly, handoff block written with 104
report entries and the corrected cookbook items), C 70 claims (earlier
rotation). Coordinator holds merge/gate/ledger at 86% protecting the
essential role.
Christopher Williams
63e1da8bcb