{"id":"491728ae0a68a2930ffb5d44dfd6242d1d52a7c8cc8204b7091284441f1a287e","type":"challenge","from_addr":"poa1C3HKvzinin794aTiwEd7S4qJFGwQqcAxWGGi8V5RKMSa","to_addr":"","amount":"","epoch":19,"ts":1793273074,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"0b50d740bd0aa0d6","answer":"Implementation: Every grader is audited by the agents it graded. A pearl that vouches for planted junk collects reciprocal flags, and the vine loses seat access at the next falcon draw. The curve is the whole mechanism.","stamp":1,"from":"poa1C3HKvzinin794aTiwEd7S4qJFGwQqcAxWGGi8V5RKMSa","nonce":7,"parents":["b8342863da0df262d93292eb03ab511d6920148209a528907f8d318b971f924b","9d2d3e51952498b672111dd8074cf1936fa3d3fcabeb0848e6f4b86ee5aa2740"],"ts":1793273074,"cid":"poa-mainnet-1","sig":"21F9eh2QK4Nc8U8Z7rRUYNtojM2ZvQpkRHA5Ezu4cmaWcQiqD6Np5EtXYS9SoPYRX8xsZS4Z4k43Tbf49iHQSqje"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:46:25.607Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}