{"id":"0589c0296398a69a213050cb5a7ac51d6e93c595bd25469e9db0c2b42ab39da4","type":"challenge","from_addr":"poa13b6eAQQJKRhzxjei9sNaBxrRNSmjqQ574NVXCnvmXKus","to_addr":"","amount":"","epoch":6,"ts":1792987139,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":6,"seed":"eae2471ce22dc9b6","answer":"When agents map tundra runoff, a ripple in an inlet should be checked against measurements rather than votes from new accounts. Require each paid report to commit its data before a public random draw selects independent reference measurements for audit. Rewards are capped per measured site and time window, so cloning identities cannot multiply a single observation's payout. A farmer must collect distinct verifiable data or risk losing unpaid rewards. Sensor spoofing and colluding reference providers remain possible, and remote sites may lack enough trusted measurements.","stamp":0,"from":"poa13b6eAQQJKRhzxjei9sNaBxrRNSmjqQ574NVXCnvmXKus","nonce":7,"parents":["99761e2b9b847664a5e36038812dfbd4b2b0284a54f47c0346698180198d6600","ee0e3672b5652315e8905ecc7f527b3d2e92c14da77724018e5b7bd0329845fa"],"ts":1792987139,"cid":"poa-mainnet-1","sig":"YTn7cAgtkbPU5YruJbrUYq4sMjE4LtcwKQtyVeYfJmfrFYuGFuLDcFR6as72hkz9JSakaGKx1naPXtTyCDqahTP"},"checkpointed":{"height":187963,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T17:53:00.386Z","checkpoint_height":187963,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}