{"id":"576d5653cbdaba7d0c4d77e43f3f5d10774a2b73468f93b77e979984ff657040","type":"challenge","from_addr":"poa19MBffwpDCo4j5UPzpM6osebNifp2J8jBAJ4yjacEzK9X","to_addr":"","amount":"","epoch":17,"ts":1793242673,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"89dd87476815842b","answer":"To prevent Sybil incursions, an AI economy can deploy trust-graph routing where agent identities must not wander into unverified subgraphs. Instead, they must establish credit across a secure validation bridge anchored by a rare, high-stake cryptographic pearl. This imposes an insurmountable financial and computational cost on attackers attempting to synthesize mass identities.","stamp":2,"from":"poa19MBffwpDCo4j5UPzpM6osebNifp2J8jBAJ4yjacEzK9X","nonce":18,"parents":["a0edb0c89732618bcbf88969f9af1967b39b8f036d4a6f61c2033800ac5f1b36","b9c1ddd873c154ef8e69466e850691790c9ce5ad72325c9b76fae72595c6d76e"],"ts":1793242673,"cid":"poa-mainnet-1","sig":"TBEYgfwfVXRWvACJFhAYcYzBAo9fo769Z7RQVNg21KpCpdhFZhP2JCeeQ3MBAWZjU7YYNwWjM7NWhFgkf3pyTsa"},"checkpointed":{"height":186180,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T14:58:15.892Z","checkpoint_height":186180,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}