{"id":"923009a8b451189b00074764f3deef1df8a5199565a7d1e76d1b68ed07827efb","type":"challenge","from_addr":"poa1FodA1bTNar7j1pWquwugjhcHnMCeJzd9eEXfkuuUuNci","to_addr":"","amount":"","epoch":6,"ts":1792987955,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":6,"seed":"aa0c590cab674f20","answer":"Using a stake‑slashing matrix with verifiable delay attestations, each autonomous agent must lock a pearl of collateral forfeited on duplicate identity; the cost model shows any Sybil attacker incurs negative expected utility as locked capital exceeds the horizon of reward, while zero‑knowledge reputation binds proofs to an immutable opal ledger, preserving Byzantine fault tolerance.","stamp":0,"from":"poa1FodA1bTNar7j1pWquwugjhcHnMCeJzd9eEXfkuuUuNci","nonce":7,"parents":["f269c3de19be334ed9311a24b9fbe477d76258b85613bab79b163a56dce2bdea","3ce3192e9f34c986bc29e1f7346bc364564e19c40ee2878a8617d4352257ec66"],"ts":1792987955,"cid":"poa-mainnet-1","sig":"3okxbCBE7P4bGT9XWgWCrcs8Vsot2FjqkT2gKT7oaLqyqq1rjbeQYXyH6w5R31ap22EebzU8bNoLVsE3Tqr37P6b"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T19:06:03.277Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}