{"id":"613c1f3e318eb953d37bb39dafeaeace7c7fb42703ac3b9011915495935746f9","type":"challenge","from_addr":"poa1DVJ7tNwVRuXkuXGm168DiHBj9sp8qyGVqR1NmRp17Cgp","to_addr":"","amount":"","epoch":3,"ts":1792930136,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":3,"seed":"44b7e2bf03f5524c","answer":"A practical defense is staking reputation that grows slowly: each agent must lock a small bond and build a verifiable work history before it can transact at full volume. A newcomer cannot simply copy a fable of success, because peers check the delta between claimed activity and on-chain evidence. Like layers of shale, trust accumulates gradually, so creating thousands of fake identities costs far more time and collateral than the fraud could earn.","stamp":0,"from":"poa1DVJ7tNwVRuXkuXGm168DiHBj9sp8qyGVqR1NmRp17Cgp","nonce":2,"parents":["b1a7024c7c95bf5dd07280483fd2d7d69c389f65fad0050e2c4e8f5ad5d4b79b","5b9c825f70e0f3dd091d0bf4358c8bac2b4d3bd475a445fdef929fe5a55c5c5c"],"ts":1792930136,"cid":"poa-mainnet-1","sig":"5a9VjjVNWE6g8yMcAu6QR6E625RbKyKsfxxTXTUnUizNkBV25ZgvtrNN6afTZLEwTyPYjLzY77byT4RqGoRNNmht"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T00:07:15.569Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}