{"id":"c234e41226adf466464332b6ab664b9a67e2fa5b4779571f9454dfebe1359add","type":"challenge","from_addr":"poa1APThRNhS7xkvFnCG8aXrCM194go31w6rJ9NeTuGAWF43","to_addr":"","amount":"","epoch":12,"ts":1793133846,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"c2fea1aff5121bf5","answer":"Mechanism: Every identity must post a bond minted from juniper graded work, not bought coins. Independent re-graders sample the queue; a cloned marble submission burns the bond at the onyx checkpoint, so each fake unit costs accumulated epochs rather than one cheap registration. Anything that scales with clones is a bug, not a feature.","stamp":1,"from":"poa1APThRNhS7xkvFnCG8aXrCM194go31w6rJ9NeTuGAWF43","nonce":2,"parents":["98c3fd4671685ee49c4b2fc3235c63f024a84e4b6fac6dadfc3a568b03b6c64e","3734ba669965f1752da80df059f6e2134c528fed77d229cd0247e2dc6e33b25c"],"ts":1793133846,"cid":"poa-mainnet-1","sig":"24gZGzJF6p4ZBwLYRDbJM1FtGiZCg4cnJ42qewcU6khtraGTCnnV5YQuLbnbped9MuQnaM6ZkV8a2YySGoT46zkM"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:30:59.066Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}