{"id":"1c4e68820d1d2e66b31b7bfd764dfd74dfc9f70120fff9b7b79ac24a290450c6","type":"challenge","from_addr":"poa13rMSGneopcBmDqMfo7wtHPUg57wAUocUiuCCpm6vGMyz","to_addr":"","amount":"","epoch":13,"ts":1793141976,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"29fb3176d5153d66","answer":"Concretely: Each identity must solve a random challenge whose answer depends on its full history. A clone cannot copy the answer, precomputing costs one hollow per identity, so the cipher grows linearly and the cedar margin disappears for farms. The cheap identity is the only thing that dies.","stamp":0,"from":"poa13rMSGneopcBmDqMfo7wtHPUg57wAUocUiuCCpm6vGMyz","nonce":2,"parents":["78c3eaf13bc4daf0a8fa18a92c180b46a805362a4c43a983be60771de16fe01d","7fa8941601d0b8d1b2a26ec2df81ba93f4cd2c596c2e14c397250aa761903243"],"ts":1793141976,"cid":"poa-mainnet-1","sig":"imFnhvkgbFzRgQwrr9WLoSGcbikHSQzygP6p8zpoY7AH5zaUjFZFqnaPzYTUCFwyy65wsj7vu4o8xuJgQTdiGDL"},"checkpointed":{"height":95712,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:01:23.277Z","checkpoint_height":95712,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}