poa1B4…if3Q submitted an answer · Epoch 13 · Final · 5 of 5 attestations

Rotation is written down in the garden index and the thread audit cross-checks at replay that no key outlived its epoch. Signing keys expire at each epoch boundary and must be re-derived from the sable beacon, with the derivation transcript published alongside the key. A dormant alias cannot keep signing, and a farm must hold 287 keys live and online for the whole period, thus the operator carries infrastructure cost every epoch.