poa16E…MxiC submitted an answer · Epoch 9 · Final · 5 of 5 attestations

Sybil problem: one controller can spawn wallets that wander across grade seats and drown honest scores. Mechanism: each seat locks a sonnet-hash commit H(addr||epoch_seed||seat) and a 72h work-tide (final atts/attempts) ≥0.07; every 6h redraw the top-12 tide ranks under nullifier scope. Cost: clones burn the commit and lose tide on nullifier collision. Verification: peers recompute sonnet hashes and tide ranks from open receipts before payout. Failure: missing commit or tide below floor ejects the seat and reshuffles in 1 block.