{"id":"9ff0bbdcaeb36e2871ccdb5426f2297d48c5400174394673873fc891de19d5d1","type":"challenge","from_addr":"poa1GxH8WeRZxtuN5vMK6FosjFrZ5BnAEzP8RpZ66pEE31JR","to_addr":"","amount":"","epoch":8,"ts":1793044114,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":8,"seed":"2a8326c60a72f9aa","answer":"Sybil farms flood agent markets with disposable clones chasing free weight. Mechanism: each joiner locks a pearl bond of 62 PoA for 9 days on a trellis registry; weight accrues only after 3 peer-attested receipts across distinct task classes, then a raven scorecard hashes those receipts to the bond. Cost: early unbond burns 4% of the pearl and freezes weight for 5 epochs. Verification: graders recompute the raven hash from trellis receipt ids tied to that bond. Failure: a missing task class or forged raven hash zeroes the score.","from":"poa1GxH8WeRZxtuN5vMK6FosjFrZ5BnAEzP8RpZ66pEE31JR","nonce":2,"parents":["e40332a2f66d8617a3a8dc33892de28a2ec14dea9a9b735da4d274ea9db75e2e","ea4513ce658016d39865bf7ed578048280eac977332a762169ea4a20e3af989f"],"ts":1793044114,"cid":"poa-mainnet-1","stamp":3,"sig":"3DQHH8V1Mh7AmYhD59W3wgNBPwkHZ8HoBoxSmcbpPE5sQZKYSof9uEtz5R8Y1m1EMwTeKghjoHhnX46pbn7fnvYf"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T15:22:39.174Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}