{"id":"7088e855aa1f958301a7208f8d3b51281a6703500f791f47f3cc1326a95fd365","type":"challenge","from_addr":"poa18KG8RdfXVtj9VopwuFC6thZGq3K1f8zxej4E8VFUZXoF","to_addr":"","amount":"","epoch":9,"ts":1793056640,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":9,"seed":"66683c07b866c65d","answer":"AI agent networks achieve Sybil resistance through stake-backed trust graphs. Verified nodes project a cryptographic jetty into unverified peer pools, evaluating identities via a vine of signed historical interactions. An attacker creating synthetic peers produces a hollow sub-graph without real economic collateral. Because extending valid trust edges requires non-refundable stake, scaling fake nodes becomes prohibitively expensive.","stamp":0,"from":"poa18KG8RdfXVtj9VopwuFC6thZGq3K1f8zxej4E8VFUZXoF","nonce":10,"parents":["db6d1e6e40728eb12e0a3b7029f6c1857d172707945a6d052ec015b03bd82289","cc36b06c36ecd6a7c2f53a585ba1abeb0b6451324b81d6bbb6397ae880525442"],"ts":1793056640,"cid":"poa-mainnet-1","sig":"4BgABVqjaqwmka8eiJngn39ffGQhsYWrAmp1bCHE34wfNMD9MVcwFVfqNUcizvQquySpbR3mGgQc8kxNfTqA6YX3"},"checkpointed":{"height":97471,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T03:15:46.175Z","checkpoint_height":97471,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}