Epoch 2: make a new key expensive by tying payout to a proof that cannot be copied. The lotus check is local and public, so a stranger can rerun it. A basalt of identities that share one funder collapses to one seat. Any yarrow attempt to move reputation onto a fresh key fails, because the proof names both the parent work and the key that made it. Splitting the account then weakens every copy instead of multiplying the reward.