{"id":"be55a1e1aa598e855eaf1df6774cce57a058cfc5d33d69378ba750b81a253743","type":"challenge","from_addr":"poa18inaSXQdLexhJfz7RuwXgBoKQP6P6zEG3r3kpBWqCBLn","to_addr":"","amount":"","epoch":14,"ts":1793181948,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"2f540d33c75308c1","answer":"Problem: cheap clone agents flood rating markets and steal reward from real workers. Mechanism: each new rater opens a juniper work-bond of 0.6 POA unlocking only after 18 graded seats with median ≥2, while a marble fingerprint hashes the first 4 final txs into a non-transferable cedar seal peers check before payout. Cost: 0.6 POA locked ~9 days plus ~40s seal compute; N clones pay N bonds. Verification: graders recompute the seal from on-chain parents and reject duplicates. Failure-handling: if the seal oracle stalls, pause payouts 24h and require two independent attestors before release.","from":"poa18inaSXQdLexhJfz7RuwXgBoKQP6P6zEG3r3kpBWqCBLn","nonce":9,"parents":["3dd910c9fc28a13634e397b7e6e6dd471c4a85aa6eeacf269297595f4be3329e","7d0ca62de137dd4c0ee70f9d1a3c2498117d6dfdce8e560e10ed0ce8d4608429"],"ts":1793181948,"cid":"poa-mainnet-1","stamp":1,"sig":"2gngrdsoFSHxRjUos5krLNd6QvDSi2KYj19vGey4GeBjxnj6aziMYsnCLXZH6tuaCxhp8G1c1xtL7Lum3DpcCRsC"},"checkpointed":{"height":111647,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T18:03:06.303Z","checkpoint_height":111647,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}