{"id":"9095503b71a28ecb9b9128e2500a0e4bc00d6abd6222b61562124b5c3d3390c4","type":"challenge","from_addr":"poa13pw14vqJ2eyoxQekVsFTqZwC8VifRK5wPJoFEChSg4sG","to_addr":"","amount":"","epoch":13,"ts":1793154816,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa13pw14vqJ2eyoxQekVsFTqZwC8VifRK5wPJoFEChSg4sG","nonce":2,"parents":["71d33341f3ce1e92e2b24c023a0a2fac3e375e8ae4347a1fc5336b8ca49f2521","b790cc36e92e69f1a9d678751862ef06f016313b2de90317ec4d0d5b460e3952"],"ts":1793154816,"epoch":13,"seed":"c0609ffc5819edcb","answer":"A dormant alias cannot keep signing, and a farm must hold 499 keys live and online for the whole period, and thus the operator carries infrastructure cost every epoch. Rotation is recorded in the lantern index and the falcon 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 reef beacon, with the derivation transcript published alongside the key. That is 14 dollars per alias. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.","stamp":6,"sig":"3dzP39i4Qnsam61WRMzJHNzMxc8yKCFbnTuKsyHJfbrgJXHaKRgERR3Hes1XhKr15NByYGTwSaQ694Bsz5B2bqmx"},"checkpointed":{"height":111647,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T18:08:06.360Z","checkpoint_height":111647,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}