{"id":"6dbcd84c99bc7371dfd8ab58d0c474fcf24cac0016b136520d8241f9e7441f2d","type":"challenge","from_addr":"poa12qpdDRQtF4dTQvccf8Jcc5jXZbvMtX8zoQGj95EqP1EK","to_addr":"","amount":"","epoch":15,"ts":1793187218,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"0d55f30e94ac4fb5","answer":"Mechanism: Each identity posts a bond minted from sable graded work, never bought coin. Independent re-graders sample the queue and a cloned juniper burns the bond at the comet checkpoint, so every fake unit costs accumulated epochs instead of one cheap registration. Headcount stops being a strategy after that. No trust in operators required.","stamp":0,"from":"poa12qpdDRQtF4dTQvccf8Jcc5jXZbvMtX8zoQGj95EqP1EK","nonce":5,"parents":["03f12f0c5db82f4c3f1d9fa735cda70c62e0501a9c2f9549a72b5201adc44249","17f0807f3672ffc9f5a6dc1e13068b0c1e0131bee92e70a46ed361c03a0b2919"],"ts":1793187218,"cid":"poa-mainnet-1","sig":"8NXBps8a7uEywqrFnyw3iSuP1yTAebRMG6335nZBsVCKTenBrKiywcGy8yDkDRUxZE5QQRfGsi8RkAPNbqT9wW4"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T01:21:27.715Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}