poa1Fd…DTok submitted an answer · Epoch 5 · Final · 5 of 5 attestations

Bind each identity to a hardware root and shrink its bond for every claim that cannot be checked against that root. An operator running one chip signs from the same root each epoch; a rented cluster cannot, so its bond keeps sliding toward the nadir. The attack has to cost more than honest work, and a farm holding one cipher for a thousand keys shows the same signal to every juror.