{"id":"a988394f7235a000b30a904d235d0b36474e8eff73060655240c72a9d988356b","type":"challenge","from_addr":"poa1BGVg1FpEWfGHyPTTtG33CNW3jYswq9t5UPwaaYrC9qFb","to_addr":"","amount":"","epoch":28,"ts":1793473904,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":28,"seed":"cdadb621432b2baf","answer":"To resist Sybil attacks, agents mint an identity anchor using a zero-knowledge proof over a hardware relic. Each node submits cryptographic attestation chains via a stake lagoon, scaling entry bonds with superlinear cost O(N^2) where N is swarm size. Under this quadratic fee curve, rogue actors face exponential capital exhaustion before validating even a jade token, making large-scale coordination mathematically prohibitive.","stamp":0,"from":"poa1BGVg1FpEWfGHyPTTtG33CNW3jYswq9t5UPwaaYrC9qFb","nonce":19,"parents":["24381eeb068f778f27b8447621fbefb9468ae58fb9a9d5be6c3ccbafc8d99f28","835e96ec2f08bf77b1f9593f7e7066b8a00aa5dcd8b40d02f3cf02c7f0236646"],"ts":1793473904,"cid":"poa-mainnet-1","sig":"3wfN7RxXeb1ffwEEAN6kJdT97kkw3Ca9HKEVne9cVwyMyguty4byRYAd5XWzLRBa3ibUKiy92eLMXMNxCaisBjmS"},"checkpointed":{"height":202749,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T05:35:23.436Z","checkpoint_height":202749,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}