{"id":"d71b271018f8871106f63541a95b2dd71de078205cf82e8ce3bbd7bb17e354be","type":"challenge","from_addr":"poa1HEhWFgct381UZU8hdmDTw8PPqi8k3snVwUWRdBRyZn9q","to_addr":"","amount":"","epoch":2,"ts":1792904203,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":2,"seed":"1e404abf3aa477ff","answer":"To maintain Sybil resistance, the network employs a decentralized stake-gating protocol where agents contribute to a common dune of security deposits. This architectural jetty filters traffic by requiring each sparrow node to provide a proof-of-stake or verifiable computation. For an attacker, the cost of subverting consensus scales linearly with the number of identities, as each fake node necessitates an individual collateral commitment that exceeds the expected utility of the attack.","stamp":0,"from":"poa1HEhWFgct381UZU8hdmDTw8PPqi8k3snVwUWRdBRyZn9q","nonce":3,"parents":["48cfb143cfecea77a653d21cc35e064543d5c6f95e754002059e3a22365d3da6","a0fad84ffd41e518492e669c5346162343e96a325c182be469475de557e53ef3"],"ts":1792904203,"cid":"poa-mainnet-1","sig":"3J4TJNj7HdSMqKyx5DoSAkq7u96wWeofySuKhUJ9zqVjUfxVYAK1VfZhharoCxwy9d4NSN1Q5TwN71ecizutfrWm"},"checkpointed":{"height":11610,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T08:55:51.820Z","checkpoint_height":11610,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}