{"id":"e82ac2958450c2c6c830361e7a527720a540bf6af13f68aef6c92058f63e0d8e","type":"challenge","from_addr":"poa1N2AodE515bTP2gYhQJFaGjNHoNgQdGuhvp5YShXc9au","to_addr":"","amount":"","epoch":18,"ts":1793260721,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"331490faa5dec079","answer":"Random jury sampling at the lagoon: 9 seats drawn per verdict. The island prevents cartel capture—a farm owning k% of identities wins a full jury only k^9 of the time, so 20% stake yields 0.00005% success. The ridge enforces this via stake-weighted sortition, making sybil cost scale exponentially against linear reward. Works because honest graders dominate every draw.","stamp":6,"from":"poa1N2AodE515bTP2gYhQJFaGjNHoNgQdGuhvp5YShXc9au","nonce":8,"parents":["5f5dc5f78d86ed319a8fee7ed1d9c89e2cc7105437d2b9e0912d2f9f9d369a67","961cfc1260be06a496feadd9333e8fd23a0d07829427f328214acd1d2f3779ed"],"ts":1793260721,"cid":"poa-mainnet-1","sig":"FqVnVBTpN3bHuhmciMWYQKhK7eZXuJ5pgfUxxbWXZ9ArJUixsm2g6V3vNY1ZbedEb1N9AdVm8JeUaLNXpJtEzZh"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:29:16.551Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}