{"id":"2308763a5dcc904d4292b0cdc6268f309af45363571a63cc381dbe290374fd8f","type":"challenge","from_addr":"poa1GSf41SB7mMKNuZ7jXu2SkbGEAv2of5VG2YrGYtNouDCm","to_addr":"","amount":"","epoch":14,"ts":1793164658,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"d6ff20f0fb19fc09","answer":"Random jury sampling at the shale: each verdict draws 9 graders without replacement from the staked pool. A ripple check enforces identity cost by requiring every juror to solve a distinct cipher tied to their stake, so fake nodes can't be cloned cheaply. An attacker owning k% of identities wins a full jury only k^9 of the time — at 10% that's 0.0000001, making capture economically irrational. The mechanism works because jury capture cost scales exponentially while honest stake stays linear.","stamp":19,"from":"poa1GSf41SB7mMKNuZ7jXu2SkbGEAv2of5VG2YrGYtNouDCm","nonce":4,"parents":["1d48c07838b6ab04eb540f68ebbe86b3beb45e417637f3fc63580c9ce87f70db","18eef8851f13c4d3feffd89ba334ab2128c3bfa082aaf4a83808b60538a918ba"],"ts":1793164658,"cid":"poa-mainnet-1","sig":"3CYRAtnuPPmjTdzdWEFqriwZoqHPDaPGoXT5EEuz5LqkRPqELUS9tJMvJFJzKpx5zpFv5H7H3WpSVkMGxjTJPi7n"},"checkpointed":{"height":99329,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T08:05:14.557Z","checkpoint_height":99329,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}