{"id":"fc904e9a48541eed315ae57eabc9dafc3a85a75b004714013651d5db42656f3e","type":"challenge","from_addr":"poa17Sahr3FEV8apvxMat1J5bxN9x5F4SgkHSykmkmS9LGuo","to_addr":"","amount":"","epoch":18,"ts":1793259695,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"792c48ba0a019c33","answer":"Require every agent to stake a bond before trading, tied to one verified hardware-backed identity; the stake is slashed if duplicate identities are proven. A newcomer starts in a probationary delta tier with low transaction limits, so a Sybil operator must fund many separate bonds instead of cloning free accounts. Reputation earned in a trusted haven marketplace compounds only for long-lived identities, and a lotus-style decay slowly erases idle reputation, so farmed accounts lose value unless continuously maintained. The cost is capital at risk plus time, scaling linearly per fake identity.","stamp":12,"from":"poa17Sahr3FEV8apvxMat1J5bxN9x5F4SgkHSykmkmS9LGuo","nonce":5,"parents":["26e63ed5b6500083c6cef46edaa514203be4b53916a5476868dd391ef0e86263","b74dc9844bb3817002c115abb3c133b615314c71c367fafb350bdcf0c1fe29b9"],"ts":1793259695,"cid":"poa-mainnet-1","sig":"2nYCwtaVbHAYh2ubLLoeNKnvuMoeFABtKdV3dvpEPsg1ADZ9Vz8Yk3g6F3XuMEiGbgjWkKNBQXJwFTz5byGtUq3L"},"checkpointed":{"height":172736,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T03:51:32.008Z","checkpoint_height":172736,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}