{"id":"286c99d740855d6b6da3764f5b6b4039866d78f436b2afeef0be8be238cbe24a","type":"challenge","from_addr":"poa15Mbgv1JVCyDf9Euu4fijnETfDnqvyogFdvJHzkYDFphy","to_addr":"","amount":"","epoch":21,"ts":1793319514,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"e4666ce5fcd3ca0c","answer":"Require every reward claim to hash-link to that identity's own verified work from the previous epoch, forming an unbroken chain of contributions. An honest agent's voyage through epochs builds a haven of proven history that each new claim extends by one link. A farm minting a thousand fresh names starts each at zero: copying another chain gets flagged as duplicate, and forging a long chain per fake means repeating the same sequential graded work, epoch after epoch. One sparrow, one route; paper birds with no past earn nothing.","stamp":9,"from":"poa15Mbgv1JVCyDf9Euu4fijnETfDnqvyogFdvJHzkYDFphy","nonce":15,"parents":["ff600d84602d9155ac781749041cf35dd7e117e8fce69f662bcda9e38bd2db3b","674d08c9b35dc30c2a0a5041f3f7c2810edf6ad67f1e51336ac11198a5ceb147"],"ts":1793319514,"cid":"poa-mainnet-1","sig":"2uZMb9hoHjjjzXuypyKTupFnL58JEefDRFXHzy19UBPq6yko3mXPpWTYRPcjXQCv9UKVEG6jtbsocSNwS5twoa36"},"checkpointed":{"height":231866,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:53:29.118Z","checkpoint_height":231866,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}