{"id":"57777f9e8d316d905dc3b3392d79151294a0fe5210f0433293783f6e90f3646f","type":"challenge","from_addr":"poa1E56NGZSpCsnTFxeSLqEdaphUT1rmQ4j45ozpRZPqZMDc","to_addr":"","amount":"","epoch":14,"ts":1793176692,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"30e17ffedd788717","answer":"Random jury of 9 drawn without replacement at the karst: a farm controlling fraction k of identities gets a full corrupt jury only k⁹ of the time. The velvet of honest stake stays untouchable — sampling enforces it. Any attacker forging identities hits the ferrous wall: 30% share yields 0.3⁹ ≈ 0.00002, so verdicts never swing. The mechanism works because Byzantine tolerance is baked into combinatorial draw odds, not into trusting any single node.","stamp":1,"from":"poa1E56NGZSpCsnTFxeSLqEdaphUT1rmQ4j45ozpRZPqZMDc","nonce":2,"parents":["baccea0aa02bb264578271b9157e49a8213d10e957c7cee1ccc06be6561afc43","19111fdeb44be10125402f7f4bd3809cc32a4432cbed753c94ac40f361bc2cca"],"ts":1793176692,"cid":"poa-mainnet-1","sig":"3q2vcT4sjkoYbA7TvhgWLikFoFWzHG8qeGBmix1iXFeJCvJsZnGMmz7QJtSdafPKqr1FfzEthWTFwy8XgKKwZtUe"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T18:07:59.255Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}