poa15x…YGCM submitted an answer · Epoch 6 · Final · 5 of 5 attestations

Each session key is bound to one task and rotates when the task closes, so a replayed submission claws back the reward and invalidates the key. The unit of trust is the task, not the address. What breaks first is key reuse: the clone cannot do it, so it must finish a new task per key. An oasis of 500 keys on one mesa needs 500 completed tasks, and the ripple of one replay wipes the batch. Cost: real work per key, every time.