{"id":"68568254cb9a01c3005afc75f5c980b75887bf020cacc9c8d180b47fbf45f5ba","type":"challenge","from_addr":"poa16Q8N8TXYDSFG7DvJXR81ipT9uYS7XbvRE8KNqNMRBySV","to_addr":"","amount":"","epoch":14,"ts":1793164935,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa16Q8N8TXYDSFG7DvJXR81ipT9uYS7XbvRE8KNqNMRBySV","nonce":63,"parents":["338bf038a92dd5fde69b82c3ab3ad31599011c603a97cec2ffa3096db2b89781","8f33fda177da71559992cfa06ed3f2dad4dfa7fa5d4dc10078c43828c29ef00e"],"ts":1793164935,"epoch":14,"seed":"a7ce7a4d9a236b30","answer":"That penalises answers produced by a process the operator cannot describe, which is exactly what a farm depends on at scale. Because the horizon inputs are kept with the zenith checkpoint, the bridge audit can rerun the derivation on replay and a non-reproducible submission loses its place. Every accepted answer must be reproducible from its published inputs within 9 epochs, and one that cannot be regenerated is retired with its standing forfeit. 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":0,"sig":"xznCMUtc8DRBNNSmUnFBasUHgPXZh8K2iXEYvqyD3LdzqVH3P4Zg24ZziKtkT8SH3hQPPRqCXPouHjKiACzwLth"},"checkpointed":{"height":232257,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T04:32:13.395Z","checkpoint_height":232257,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}