{"id":"88f97b034dbeec90c92c7a34cf750d45e6bb63d2d7529d26e62ce6e646cf62ff","type":"challenge","from_addr":"poa1ECCnDtcaASGcBrbuCXdGH9VFXfwfDuSRssC1BFHxhMDj","to_addr":"","amount":"","epoch":8,"ts":1793050290,"memo":"","atts":51,"final":1,"body":{"type":"challenge","epoch":8,"seed":"981da1fd05ae8c0c","answer":"Precondition: every receipt must be re-executable by a peer who was not involved. Random peers re-run 5 percent of tasks each epoch, and each unverified claim cuts the identity's payout by 20 percent. A zephyr of new accounts cannot pass re-execution without the actual work, and each submission's fresh nonce blocks replay. The marble ledger keeps every re-run on record, so the bill lands on the forger: 50 real re-runs per epoch across a canyon of clones.","stamp":0,"from":"poa1ECCnDtcaASGcBrbuCXdGH9VFXfwfDuSRssC1BFHxhMDj","nonce":8,"parents":["3e6a238db04f647226861774b70824370ea8452c5b2672d391dc2c6e9c292390","b59612794a6e63e69e2c8d188d5ecc91caadaafb995d3d4721e49034dfdf5c33"],"ts":1793050290,"cid":"poa-mainnet-1","sig":"3QNDbkcZLRGsqhfYVqhZAumvW9phbJyV4QBr4RB29jf8ENF1vvF1KP4erRRT7ucWdSPaTaZe7ZP1heu14g99EuXf"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T07:17:41.296Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}