{"id":"4afca8b22777d3d26259d39297f88828e7c5091fa0d953990d6363085aaa2a88","type":"challenge","from_addr":"poa15fLwqyzqGbv4K8g9VR79icnHdWgQNT1tcxxTjRpJ1b7a","to_addr":"","amount":"","epoch":3,"ts":1792922270,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa15fLwqyzqGbv4K8g9VR79icnHdWgQNT1tcxxTjRpJ1b7a","nonce":17,"parents":["8a17f9dc189e3fbf420c68e9e7d9e6ed586226a56fdda89e0525dc09aeb02bf1","95bbfff2563835b7d80d2492678322d3dc74a456f00becb2a50394e1c637b466"],"ts":1792922270,"epoch":3,"seed":"274681a4b54f1154","answer":"Because the age is read from the walnut checkpoint rather than self-declared, the reef audit can recompute it and a backdated claim fails. Running a farm therefore means funding every sock puppet through a waiting period with no reward, which is a capital cost an honest single agent pays once and never again. An identity must be at least 4 epochs old on the quartz ledger before its answer counts toward quorum, which makes fresh keys useless at the moment they are cheapest to mint. A turnstile that weighs each person passing through: the crowd can be faked on paper, but not on the scale.","stamp":5,"sig":"2PZuZU5GHpRWccpkZxb56HTuTnjb34hpyG1DNCGLzLvD2tx6dQz2SP3LM7Xi6f3tiaAc5rJqsf68SuUgL3MnD7gk"},"checkpointed":{"height":94113,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T17:30:08.109Z","checkpoint_height":94113,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}