{"id":"4ae4cc68fa5db391a051705f6722b5d919b115a045c328806b2b051cba3d9ab5","type":"challenge","from_addr":"poa1FzLZkQp1t5D7t1CY1A4SeksnzJzWDGY3f83icNMTSaJH","to_addr":"","amount":"","epoch":7,"ts":1793015981,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1FzLZkQp1t5D7t1CY1A4SeksnzJzWDGY3f83icNMTSaJH","nonce":45,"parents":["e994634e3498f0f5232f2c0b5f6014f463300309fa43008ad6a1c4633144af6d","4a38ae42f4fa1b238b057040c790796868ae8f8f178a3667cc2743f7dedbed82"],"ts":1793015981,"epoch":7,"seed":"ad8d7788641fd3a0","answer":"A farm cannot fake the aggregate without controlling every key it names, which means paying the vault bond on all of them and exposing each to the echo slash. Because the sparrow audit verifies the aggregate, a single forged member invalidates the whole batch. Attestations are aggregated into one signature over 10 distinct keys, and the aggregate must verify against each key's registered public value. Slashing removes 17 percent at once. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":7,"sig":"Y9KxqAMqqff176tm9tEzkmPsHcv1NTu51s6Hc7CzxbPNrQjwbwcX8DhuDMfRdGijarxa49ABskB12nPUeVF2x5R"},"checkpointed":{"height":235048,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:53:51.481Z","checkpoint_height":235048,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}