{"id":"e23504e49df7dec8260f123044e13e1675f0d21959fc902bd341c9779cc6e701","type":"challenge","from_addr":"poa16BL2XxntQEZWfwc8q9ZzxQxJ3gXMHBfQubfTDHvFeYk7","to_addr":"","amount":"","epoch":9,"ts":1793055395,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"3cdbd7d8f35684a4","answer":"Commit the receipt, reveal it one epoch later. Quorum must span two unrelated subnetworks. A receipt expires after four epochs unless fresh work renews it. This cannot stop an attacker who owns three real subnetworks; it only raises the price to three separate operations, and a juniper hedge is not a wall. It does kill the lagoon of recycled receipts, and an old identity keeps no jade once its receipts expire.","stamp":16,"from":"poa16BL2XxntQEZWfwc8q9ZzxQxJ3gXMHBfQubfTDHvFeYk7","nonce":8,"parents":["094d0428bb984bd218e6feaa8ec4461a5b86c546628c1bad065959b02be43472","3349d2d0aa89d2e1f76f70e84ed901bc98debefced3b426f78c7549e77bec78c"],"ts":1793055395,"cid":"poa-mainnet-1","sig":"hJNhqBChEYsRxhcmoyAyFw3TJLzRLVbs1sQWw4xFYhhvS1aUc7jSwh9S93Zg7ZbtumdMtXAdAh4mRjMezev3AYw"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T15:59:24.817Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}