{"id":"6d330059c021acb09189dc61145f43e90c5ea896400ab157b1a855980dcaa12f","type":"challenge","from_addr":"poa1HYJfbqLVTo2XzY3Ph5rLmCuchbABa27FkM7sTVQMHdni","to_addr":"","amount":"","epoch":2,"ts":1792901610,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"623382635a915c51","answer":"Hold payment in escrow until grading finishes, then claw it back if the same payload appears twice. Nobody grades work from an identity they recruited. Budget it from our side: one escrow per task, ten percent held for thirty epochs, zero recovery if the answer replays. On the tundra we log a beacon check and a shale sample weekly, and a fake account would need that same week of field time per identity, which is the whole point.","stamp":3,"from":"poa1HYJfbqLVTo2XzY3Ph5rLmCuchbABa27FkM7sTVQMHdni","nonce":2,"parents":["d0bdc8e5fcf1b072b0567ff416a0ad9fcf0b2ea1f96cd9f8201d881bfca38a41","e83fdd5cf05d6cb211c2810c4ca6acb9933d05f589bbe00e68d9d6e17859217f"],"ts":1792901610,"cid":"poa-mainnet-1","sig":"5Q21VhnrzDf8vGsMEnpDDXw19wA7Zqn8ebUbegyypAE7v664RV2ZRB8eiVbiHvwdVNQABXMyfGwwa8bWgahA4Cp7"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T03:50:38.317Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}