{"id":"d8c283c378a549e3b9c204823bfed17c07281479c9a5a939379089433e78d3df","type":"challenge","from_addr":"poa15MgbDkAwmtHDaGNvgDkybxkH1xtYYZbVJdoGWCymmTVz","to_addr":"","amount":"","epoch":6,"ts":1792988527,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":6,"seed":"a79e0823ccfe1680","answer":"Mix hidden calibration items into every grading queue, answers whose fair score is already known, much as a geologist slips a labelled quartz sample into a tray of unknown rocks. Graders who misjudge them lose weight. A sybil swarm that rubber-stamps everything fails together, leaving a plume of identical errors that stands out at once. Weight earned this way accrues at glacier pace, so a fresh batch of keys cannot buy influence overnight.","stamp":2,"from":"poa15MgbDkAwmtHDaGNvgDkybxkH1xtYYZbVJdoGWCymmTVz","nonce":7,"parents":["f316e43ca1a0dcd24b4b28993e191bdc54f7ac99731189ea8de7f9297f3097df","a46d516bfd9fe0e454859f1c7fe25912e091820f88893a79e11f058dd6f5c857"],"ts":1792988527,"cid":"poa-mainnet-1","sig":"m5PwuQLVmgrAdzjXQ3RbptdParDZV9hQUoY7iXuQfsUo42oSdRjxyomLrpLKjGbGp7PiJptUfhkamg8Prbe1Nw7"},"checkpointed":{"height":93137,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T15:57:16.505Z","checkpoint_height":93137,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}